Industrial fireproof and soundproof metal composite door and preparation method thereof

Abstract

An industrial fireproof and soundproof metal composite door and a preparation method thereof, belonging to the field of door technology, the metal composite door of the present invention is composed of a main door panel, an anticorrosion and heat insulation paint layer, a heat insulation and sound insulation layer, a corrugated plate, a sound absorbing layer, an anticorrosion and heat insulation paint layer, and a secondary door panel in order from indoor to outdoor; wherein the anticorrosion and heat insulation paint layer, the heat insulation and sound insulation layer, and the sound absorbing layer are prepared from special materials; the top and bottom ends of the main door panel are designed as inclined surfaces, and the inclined surface design of the main door panel makes the sound insulation effect less susceptible to the installation accuracy, allows a larger installation error, has better fit with the door frame, has a larger fit area, is less likely to leak smoke, and is less likely to leak sound. Each layer is used in combination according to a certain thickness and size, has excellent fire resistance and heat insulation and sound insulation, has a long fire resistance time, good tolerance, and especially has a very good low-frequency sound insulation effect.

Description

Technical Field

[0001] The invention belongs to the technical field of doors, and in particular relates to an industrial fireproof and soundproof metal composite door and a preparation method thereof. Background Art

[0002] With the rapid development of industry, various types of industrial sites such as factories, workshops, warehouses, etc. are increasing. These sites often store a large number of raw materials, semi-finished products and finished products, as well as various mechanical equipment. Once a fire occurs, it will not only cause huge property losses, but may also endanger the lives of employees. Therefore, the demand for fire protection facilities is becoming increasingly urgent. As an important fire separation equipment, fire doors can effectively prevent the spread of fire when a fire occurs, and buy precious time for personnel evacuation and fire fighting and rescue. In addition, industrial sites usually produce various noises, such as machine operation sounds, equipment roars, etc. Being in a high-noise environment for a long time will have a serious impact on the physical and mental health of employees, leading to hearing loss, increased psychological pressure and other problems. In order to reduce noise pollution and improve the comfort of the working environment, soundproof doors came into being. Industrial fire and soundproof doors combine fire protection and sound insulation functions, meeting the dual needs of industrial sites for safety and environment.

[0003] Industrial fireproof and soundproof doors usually use metal materials with good fire resistance, such as steel. Steel has high strength and stability, can maintain structural integrity at high temperatures, and effectively block fire. At the same time, in order to improve the sound insulation effect, industrial fireproof and soundproof doors usually use a multi-layer composite structure, and various sound insulation materials such as rock wool and glass wool are filled in the door. These materials have good sound absorption and sound insulation properties, which can effectively reduce the spread of noise. This structure not only ensures the fire resistance of the door, but also effectively blocks noise. In addition, the sealing design between the door frame and the door leaf is also crucial. Good sealing performance can prevent fire and noise from spreading through the door gap and improve the overall performance of the door.

[0004] At present, there are various types of fireproof and soundproof doors on the market, with varying performances. There are also some common deficiencies as follows:

[0005] (1) Limited fire resistance: Although fireproof and soundproof doors can prevent the spread of fire for a certain period of time, as the fire continues to develop and the temperature continues to rise, the fire resistance of the door will gradually decrease, and it will deform, crack, etc., affecting its fire protection effect.

[0006] (2) Insufficient adaptability to special fire scenarios: Different types of industrial sites may face different fire risks, such as chemical fires, electrical fires, etc. Current fireproof and soundproof doors have insufficient performance when dealing with some special fire scenarios, such as insufficient tolerance to certain corrosive substances or high temperature and high pressure environments.

[0007] (3) Poor low-frequency sound insulation effect: For low-frequency noise in industrial environments, such as the operating sound of large machinery and equipment, the roar of ventilation systems, etc., the sound insulation effect of fireproof and soundproof doors is often not ideal. Low-frequency noise has the characteristics of long wavelength and strong penetration, and is difficult to be effectively blocked.

[0008] (4) Installation accuracy affects the sound insulation effect: The sound insulation performance of the soundproof door depends largely on the installation accuracy. If the installation is improper, such as the gap between the door frame and the wall is not properly handled, the door leaf and the door frame are not tightly matched, etc., the sound insulation effect will be seriously affected. However, in industrial sites, due to the limitations of construction conditions and the differences in the technical level of installers, it is difficult to ensure that the installation accuracy of the door is always optimal.

[0009] Therefore, in the face of the high requirements for fire prevention and sound insulation in industrial scenarios, it is also necessary to continuously innovate and improve the materials, structures, functions, etc. of doors to provide more reliable protection for the safety and comfort of industrial sites. Summary of the invention

[0010] The existing fireproof and soundproof doors still have the problems of short fire resistance time limit, insufficient tolerance, poor low-frequency sound insulation effect, and the sound insulation effect is greatly affected by the installation accuracy. The present invention provides an industrial fireproof and soundproof metal composite door and a preparation method thereof. The metal composite door is composed of a main door panel, an anticorrosive and heat-insulating paint layer, a heat-insulating and sound-insulating layer, a corrugated plate, a sound-absorbing layer, an anticorrosive and heat-insulating paint layer, and a secondary door panel from indoor to outdoor. Each layer is used in combination according to a certain thickness and size, and has excellent fire resistance, heat insulation and sound insulation, long fire resistance time, good tolerance, and especially good low-frequency sound insulation effect. The specific technical scheme is as follows:

[0011] The invention discloses an industrial fireproof and soundproof metal composite door. The structure of the metal composite door comprises a main door panel. The top and bottom ends of the main door panel are both inclined surfaces. The inclined surface of the top end is inclined upward from the indoor side to the outdoor side, and the inclined surface of the bottom end is inclined downward from the indoor side to the outdoor side. A secondary door panel is arranged on the side of the main door panel facing the outdoor. The secondary door panel is provided with shielding edges extending outward on all sides, so that the area of ​​the secondary door panel is larger than that of the main door panel. The main door panel and the secondary door panel are combined to form a hollow door cavity. The inner wall of the hollow door cavity is coated with an anti-corrosion and heat-insulating paint layer. A heat-insulating and sound-insulating layer and a sound-absorbing layer are arranged in sequence in the hollow door cavity from the indoor side to the outdoor side, and a corrugated plate is sandwiched between the heat-insulating and sound-insulating layer and the sound-absorbing layer.

[0012] In the above-mentioned metal composite door, the inclination angles of the top and bottom slopes of the main door panel are 40° to 65°; the door frame and door sill matching the main door panel both have slopes of 40° to 65°, which are compatible with the slopes of the top and bottom of the main door panel.

[0013] In the above metal composite door, the main door panel and the auxiliary door panel are welded to form a hollow door cavity, or the main door panel and the auxiliary door panel are pressed together to form a hollow door cavity; the vertical section of the hollow door cavity is a trapezoid, and the horizontal section is a rectangle.

[0014] In the above-mentioned metal composite door, the main door panel and the auxiliary door panel are made of metal with a thickness of 0.8 mm to 1.4 mm.

[0015] In the above-mentioned metal composite door, the thickness of the anti-corrosion and heat-insulating paint layer is 0.4mm~0.8mm, and the coating of the anti-corrosion and heat-insulating paint layer includes the following raw materials in parts by weight: 30 parts~40 parts of water-based acrylic resin, 2 parts~5 parts of polydecenyl butyl acrylate, 15 parts~25 parts of silicone acrylic emulsion, 10 parts~15 parts of hollow glass microspheres, 5 parts~10 parts of pumice powder, 3 parts~5 parts of zinc phosphate, 2 parts~4 parts of aluminum tripolyphosphate, 0.5 parts~1 parts of isomeric hexadecyl alcohol, 0.3 parts~0.5 parts of polydimethylsiloxane, 0.3 parts~0.5 parts of polyether polyester modified organic siloxane, 0.2 parts~0.5 parts of bentonite, 0.5 parts~1 parts of HDI trimer curing agent, and 60 parts~90 parts of water; after the coating is applied and dried, the anti-corrosion and heat-insulating paint layer is obtained.

[0016] In the above-mentioned metal composite door, the thickness of the heat insulation and sound insulation layer is 12mm~16mm, and the material composition of the heat insulation and sound insulation layer includes the following raw materials in proportion by mass: 30~40 parts of rock wool, 20~30 parts of glass wool, 10~15 parts of rubber particles, 5~10 parts of asphalt damping sheet, 10~15 parts of expanded perlite, 2~5 parts of aerogel, 5~10 parts of waterborne polyurethane, 3~5 parts of acrylic emulsion, and 3~5 parts of acrylate C10-30 alkanol acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed and cured to obtain the heat insulation and sound insulation layer.

[0017] In the above-mentioned metal composite door, the thickness of the sound-absorbing layer is 14mm~20mm, and the material composition of the sound-absorbing layer includes the following raw materials in proportion by mass: 40~50 parts of melamine foam, 30~40 parts of polyester fiber sound-absorbing cotton, 10~15 parts of nano-silica aerogel, 5~10 parts of water-based adhesive, and 4~8 parts of acrylate C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection-molded, pressed into shape, and cured to obtain the sound-absorbing layer.

[0018] In the above-mentioned metal composite door, the corrugated board is made of rock wool board, with a thickness of 1mm to 2mm, a corrugation wavelength of 40mm to 60mm, and a corrugation height of 5mm to 8mm.

[0019] In the above metal composite door, the fixed edge of the main door panel is provided with a hinge piece installation portion 1.1, and the fixed edge of the auxiliary door panel is provided with a hinge shaft groove 2.1 for accommodating the hinge shaft; the width dimension of the shielding edge is equal to the diameter dimension of the hinge shaft.

[0020] In the above-mentioned metal composite door, the main door panel or the auxiliary door panel is also provided with a door lock component; the main door panel and the auxiliary door panel are also provided with a door handle.

[0021] The above-mentioned method for preparing an industrial fireproof and soundproof metal composite door comprises the following steps:

[0022] S1: The main door panel and the auxiliary door panel are welded or pressed as one body to form a hollow door cavity with a trapezoidal vertical cross section, one side of the hollow door cavity is welded with a metal strip for edge sealing, and the other side is open;

[0023] S3: coating the inside of the hollow door cavity through the open edge, and after drying, obtaining an anti-corrosion and heat-insulating paint layer;

[0024] S4: stacking, shearing and trimming the heat and sound insulation layer, the corrugated board and the sound-absorbing layer in sequence to obtain a filling board;

[0025] S5: conveying a filling plate into the hollow door cavity through the open edge, and then welding the open edge with metal strips to seal the edge, thereby obtaining a metal composite door;

[0026] In S5 of the above preparation method, the inner surface of the metal strip is coated with an anti-corrosion and heat-insulating paint layer before edge sealing, and the edge of the anti-corrosion and heat-insulating paint layer is 1.5mm to 2.5mm away from the welding seam, so that the anti-corrosion and heat-insulating paint layer does not affect the firmness of the metal strip welding.

[0027] The industrial fireproof and soundproof metal composite door and the preparation method thereof provided by the present invention have the following beneficial effects compared with the prior art:

[0028] 1. The metal composite door of the present invention is composed of 7 layers from indoor to outdoor, namely, main door panel, anticorrosion and heat insulation paint layer, heat insulation and sound insulation layer, corrugated board, sound absorbing layer, anticorrosion and heat insulation paint layer, and auxiliary door panel. Each layer is used in a certain thickness and size, and has excellent fire resistance, heat insulation and sound insulation, long fire resistance time, good tolerance, and especially good low-frequency sound insulation effect.

[0029] 2. The top and bottom ends of the main door panel of the present invention are designed to be inclined. The inclined design of the main door panel makes the sound insulation effect less susceptible to installation accuracy, allows a larger installation error, has a better fit with the door frame, a larger fitting area, and is less likely to leak smoke or sound.

[0030] 3. The auxiliary door panel of the present invention is provided with a shielding edge extending outward on all sides, so that the area of ​​the auxiliary door panel is larger than that of the main door panel; it has a better barrier effect, especially the width of the shielding edge is equal to the diameter of the hinge shaft, the width of the shielding edge will not affect the rotation of the hinge shaft and the door, and will not get stuck. The shielding edge can block the gap at the hinge shaft position, is not easy to leak fire, and has a better sound insulation effect.

[0031] Fourth, the thickness of the anticorrosion and heat-insulating paint layer of the present invention is 0.4mm to 0.8mm, has a certain sound insulation effect, and can isolate the metal layer from being corroded by the components of the heat insulation and sound insulation layer or the components of the silencing layer. The coating components of the anticorrosion and heat-insulating paint layer include water-based acrylic resin, polydecenyl butyl acrylate, silicone acrylic emulsion, hollow glass microspheres, pumice powder, zinc phosphate, aluminum tripolyphosphate, isomeric hexadecyl alcohol, polydimethylsiloxane, polyether polyester modified organic siloxane, bentonite, HDI trimer curing agent, etc. As a film-forming substance, the water-based acrylic resin provides the basic properties of the paint film, has good adhesion, weather resistance and water resistance, can form a continuous protective film on the surface of the object, and protect the substrate from corrosion and the influence of the external environment. Polydecenyl butyl acrylate has a toughening effect, increases the flexibility of the coating, prevents the paint film from cracking when it is impacted by external forces or changes in temperature, can improve the film-forming property, and helps to improve the film-forming property of the coating, making the paint film more uniform and smooth, and improving the quality of the paint film. The silicon component in silicone-acrylic emulsion gives the coating excellent weather resistance, resists temperature changes and atmospheric erosion, enhances the waterproof performance of the paint film, prevents moisture from penetrating into the substrate, thereby improving the anti-corrosion effect and having good adhesion to the substrate. The hollow structure of hollow glass microspheres gives it a low thermal conductivity, which can effectively prevent the transfer of heat, play a heat-insulating effect, and reduce the weight of the coating. Pumice powder improves the hardness and wear resistance of the paint film, making the coating more durable, able to withstand a certain high temperature environment, and maintaining the stability of the coating. Zinc phosphate can react with the metal surface to form a stable complex, inhibit the corrosion of the metal, and act as a corrosion inhibitor to slow down the corrosion rate of the metal substrate. Aluminum tripolyphosphate is similar to zinc phosphate and has good anti-rust and anti-corrosion properties. It works in conjunction with other anti-corrosion ingredients to enhance the anti-corrosion effect of the coating. Isomeric hexadecanol will improve the leveling of the coating, make the surface of the paint film smoother, adjust the drying speed of the coating, and prevent quality problems caused by drying too fast or too slow. Polydimethylsiloxane can effectively eliminate bubbles generated during the production and construction of the coating, improve the quality of the paint film, and make the surface of the paint film have a certain smoothness. Polyether polyester modified organosiloxane can improve the wettability of the coating to the substrate, enhance adhesion, enhance the stability of the coating, and prevent stratification and precipitation. Bentonite can prevent the pigment and filler in the coating from settling, maintain the uniformity of the coating, adjust the viscosity of the coating, and facilitate construction. HDI trimer curing agent allows the paint to form a cross-linked structure, improve the strength and hardness of the paint film, and enhance the chemical corrosion resistance and high temperature resistance of the coating.

[0032] 5. The thickness of the heat insulation and sound insulation layer of the present invention is 12mm to 16mm, and the material composition of the heat insulation and sound insulation layer includes rock wool, glass wool, rubber particles, asphalt damping sheet, expanded perlite, aerogel, water-based polyurethane, acrylic emulsion, and acrylic ester C10-30 alkyl acrylate cross-linked polymer. Rock wool has a low thermal conductivity coefficient, can effectively prevent the transfer of heat, and has a good thermal insulation effect. The fiber structure can absorb and block the propagation of sound and reduce noise. Glass wool is similar to rock wool, has good thermal insulation ability, reduces heat exchange, has a good absorption and attenuation effect on sound, and reduces environmental noise. Rubber particles can absorb vibration energy, reduce vibration transmission, improve the seismic performance of the sound insulation board, and make the heat insulation and sound insulation layer have certain elasticity and flexibility, and are not easy to break. The asphalt damping sheet reduces the transmission of vibration and noise through damping, and increases the overall strength and stability of the heat insulation and sound insulation layer. Expanded perlite has a porous structure and low thermal conductivity. It is an excellent thermal insulation material and reduces the weight of the heat insulation and sound insulation layer. Aerogel is one of the best known thermal insulation materials. It can greatly reduce heat conduction, has extremely low density, and has little effect on the overall weight. Waterborne polyurethane is used as an adhesive to firmly bond various materials together to form a stable structure, improving the toughness and impact resistance of the thermal and sound insulation layer. Acrylic emulsion can form a continuous film to protect the internal materials, while also helping to improve the overall stability. It has good adhesion to different materials and ensures the integrity of the thermal and sound insulation layer. Acrylate C10-30 alkyl acrylate cross-linked polymer improves the binding and homogeneity of the ingredients, improves the mechanical strength of the thermal and sound insulation layer through cross-linking, and enables the thermal and sound insulation layer to maintain stable performance under different environmental conditions.

[0033] Sixth, the thickness of the sound-absorbing layer of the present invention is 14mm to 20mm, and the material composition of the sound-absorbing layer includes melamine foam, polyester fiber sound-absorbing cotton, nano-silica aerogel, water-based adhesive, and acrylic ester C10-30 alkyl acrylate cross-linked polymer. Melamine foam has a porous structure, can absorb sound energy, and reduce noise reflection. Melamine itself has a certain flame retardancy, which improves the safety performance of the sound-absorbing layer. Polyester fiber sound-absorbing cotton absorbs sound through fiber friction and air viscosity, reduces noise propagation, generally does not contain harmful substances, and is friendly to the human body and the environment. Nano-silica aerogel has extremely low thermal conductivity, prevents the influence of heat transfer on sound absorption performance, and also plays a role in heat insulation, does not increase the excessive weight of the sound-absorbing layer, and is easy to use. The water-based adhesive firmly bonds different materials together to ensure the structural stability of the sound-absorbing layer. Compared with traditional organic solvent-based adhesives, water-based adhesives are more environmentally friendly and reduce the emission of volatile organic compounds. Acrylate C10-30 alkyl acrylate cross-linked polymer improves the binding and homogeneity of the components, forms a stable three-dimensional structure through cross-linking, improves the mechanical strength and durability of the sound-absorbing layer, improves water resistance and weather resistance, enables the sound-absorbing layer to maintain stable performance under different environmental conditions, and prolongs its service life.

[0034] 7. The corrugated board of the present invention is made of rock wool board with a thickness of 1mm to 2mm, a corrugation wavelength of 40mm to 60mm, and a corrugation height of 5mm to 8mm. The corrugated rock wool board sandwiched between the heat insulation and sound insulation layer and the sound insulation layer mainly plays the following roles: (1) Enhanced thermal insulation performance: Rock wool has a good thermal insulation effect. Sandwiched in the middle, it can further prevent heat from being transferred between the heat insulation and sound insulation layer and the sound insulation layer, thereby improving the overall thermal insulation capacity. (2) Provide support and structural stability: The corrugated shape can increase the strength and rigidity of the rock wool board, provide certain support for the entire structure, prevent the heat insulation and sound insulation layer and the sound insulation layer from deforming or collapsing during use, and thereby reduce the thermal deformation of the metal composite door. (3) Auxiliary sound insulation: Rock wool itself also has certain sound insulation performance, which helps to enhance the overall sound insulation effect.

[0035] The specific corrugated rock wool board has a good sound wave spoiling effect: the corrugated surface of the corrugated rock wool board can make the incident sound reflect and scatter more. Compared with the flat rock wool board, the propagation path of sound on the corrugated surface is more complicated, which increases the distance of sound propagation and energy loss, thereby improving the sound insulation effect. The corrugated shape will increase the surface area of ​​the rock wool board, thereby increasing the ability to absorb sound. The sound will produce multiple reflections and frictions in the grooves and convex parts of the corrugation, converting the sound energy into heat energy and being absorbed. The surface area of ​​the flat rock wool board is relatively small, and the sound absorption performance may be weak. The structure of the corrugated rock wool board is relatively complex, and its resonant frequency is different from that of the flat rock wool board. Specific corrugated rock wool board In a specific frequency range, the corrugated rock wool board can better suppress structural resonance, reduce the sound amplification caused by resonance, and improve the low-frequency sound insulation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a right view of an industrial fireproof and soundproof metal composite door according to an embodiment of the present invention;

[0037] Figure 2 It is a right side cross-sectional view of an industrial fireproof and soundproof metal composite door according to an embodiment of the present invention;

[0038] Figure 3 It is a left view of an industrial fireproof and soundproof metal composite door according to an embodiment of the present invention;

[0039] Figure 4 A front view of an industrial fireproof and soundproof metal composite door according to an embodiment of the present invention;

[0040] Figure 5 for Figure 4 Middle AA upward section view;

[0041] Figure 6 A rear view of an industrial fireproof and soundproof metal composite door according to an embodiment of the present invention;

[0042] Figure 7 A top view of an industrial fireproof and soundproof metal composite door according to an embodiment of the present invention, after being matched with a door frame, at the hinge axis position;

[0043] Figure 8 This is a right side view of an industrial fireproof and soundproof metal composite door in accordance with an embodiment of the present invention after being matched with a door frame;

[0044] Figures 1 to 8 Middle: 1-main door panel, 1.1-hinge installation part, 2-secondary door panel, 2.1-hinge axis groove, 2.2-shielding edge, 3-anti-corrosion and heat-insulating paint layer, 4-heat-insulating and sound-insulating layer, 5-sound-absorbing layer, 6-corrugated plate. DETAILED DESCRIPTION

[0045] The following is a combination of specific implementation cases and attached Figure 1 To Attachment Figure 8 The present invention is further described below, but the present invention is not limited to these embodiments.

[0046] Example 1

[0047] An industrial fireproof and soundproof metal composite door, such as Figures 1 to 8 As shown, the structure of the metal composite door includes a main door panel 1, the top and bottom of the main door panel 1 are both inclined surfaces, the inclined surface angle is 50°, the inclined surface of the top is inclined upward from the indoor side to the outdoor side, and the inclined surface of the bottom is inclined downward from the indoor side to the outdoor side, and the door frame and the door sill matched with the main door panel have an inclined surface of 50°, which is adapted to the inclined surfaces of the top and bottom ends of the main door panel; a secondary door panel 2 is provided on the side of the main door panel 1 facing the outdoors, and a shielding edge 2.2 is provided on the surroundings of the secondary door panel 2 to extend outward, so that the area of ​​the secondary door panel 2 is larger than that of the main door panel 1; the main door The plate 1 and the auxiliary door plate 2 are welded to form a hollow door cavity, the vertical section of the hollow door cavity is a trapezoid, and the horizontal section is a rectangle; the inner wall of the hollow door cavity is coated with an anti-corrosion and heat-insulating paint layer 3; a heat-insulating and sound-insulating layer 4 and a sound-absorbing layer 5 are arranged in sequence in the hollow door cavity from the indoor surface to the outdoor surface, and a corrugated plate 6 is sandwiched between the heat-insulating and sound-insulating layer 4 and the sound-absorbing layer 5; a hinge piece installation portion 1.1 is provided on the fixed edge of the main door plate 1, and a hinge shaft groove 2.1 is provided on the fixed edge of the auxiliary door plate 2 for accommodating the hinge shaft; the width dimension of the shielding edge 2.2 is equal to the diameter dimension of the hinge shaft.

[0048] In this embodiment, the main door panel 1 and the auxiliary door panel 2 are made of metal with a thickness of 1 mm.

[0049] In this embodiment, the thickness of the anti-corrosion and heat-insulating paint layer 3 is 0.6 mm, and the coating of the anti-corrosion and heat-insulating paint layer 3 includes the following raw materials in parts by mass: 35 parts of water-based acrylic resin, 3 parts of polydecenyl butyl acrylate, 20 parts of silicone acrylic emulsion, 12 parts of hollow glass microspheres, 8 parts of pumice powder, 4 parts of zinc phosphate, 3 parts of aluminum tripolyphosphate, 0.8 parts of isomeric hexadecyl alcohol, 0.4 parts of polydimethylsiloxane, 0.4 parts of polyether polyester modified organic siloxane, 0.3 parts of bentonite, 0.8 parts of HDI trimer curing agent, and 75 parts of water; after the coating is applied and dried, the anti-corrosion and heat-insulating paint layer 3 is obtained.

[0050] In this embodiment, the thickness of the heat insulation and sound insulation layer 4 is 14 mm, and the material composition of the heat insulation and sound insulation layer 4 includes the following raw materials by mass: 35 parts of rock wool, 25 parts of glass wool, 12 parts of rubber particles, 7.5 parts of asphalt damping sheet, 12 parts of expanded perlite, 3 parts of aerogel, 8 parts of waterborne polyurethane, 4 parts of acrylic emulsion, and 4 parts of acrylic ester C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 95 kg / m 3 Thermal and sound insulation layer 4.

[0051] In this embodiment, the thickness of the sound-absorbing layer 5 is 17 mm, and the material composition of the sound-absorbing layer 5 includes the following raw materials in parts by weight: 45 parts of melamine foam, 35 parts of polyester fiber sound-absorbing cotton, 12 parts of nano-silica aerogel, 8 parts of water-based adhesive, and 6 parts of acrylate C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 46 kg / m 3 The sound-absorbing layer 5.

[0052] In this embodiment, the corrugated plate 6 is made of rock wool board, with a thickness of 1.5 mm, a corrugation wavelength of 50 mm, and a corrugation height of 6 mm.

[0053] In this embodiment, the main door panel 1 and the auxiliary door panel 2 are also provided with door handles.

[0054] The above-mentioned method for preparing an industrial fireproof and soundproof metal composite door comprises the following steps:

[0055] S1: The main door panel 1 and the auxiliary door panel 2 are welded or pressed as one body to form a hollow door cavity with a trapezoidal vertical cross section, one side of the hollow door cavity is welded with a metal strip for edge sealing, and the other side is open; the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2;

[0056] S3: coating the inside of the hollow door cavity through the open edge, and after drying, obtaining an anticorrosive and heat-insulating paint layer 3;

[0057] S4: stacking, shearing and trimming the heat and sound insulation layer 4, the corrugated board 6 and the sound absorbing layer 5 in sequence to obtain a filling board;

[0058] S5: conveying a filling plate into the hollow door cavity through the open edge, and then welding the open edge with metal strips to seal the edge, thereby obtaining a metal composite door;

[0059] In S5, the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2; before the edge of the metal strip is sealed, the inner surface is coated with an anti-corrosion and heat-insulating paint layer 3, and the edge of the anti-corrosion and heat-insulating paint layer 3 is 2.0 mm away from the welding seam, so that the anti-corrosion and heat-insulating paint layer 3 does not affect the firmness of the metal strip welding.

[0060] Example 2

[0061] An industrial fireproof and soundproof metal composite door, such as Figures 1 to 8As shown, the structure of the metal composite door includes a main door panel 1, the top and bottom of the main door panel 1 are both inclined surfaces, the inclined surface angle is 40°, the inclined surface of the top is inclined upward from the indoor side to the outdoor side, and the inclined surface of the bottom is inclined downward from the indoor side to the outdoor side, and the door frame and the door sill matched with the main door panel have an inclined surface of 40°, which is adapted to the inclined surfaces of the top and bottom ends of the main door panel; a secondary door panel 2 is arranged on the side of the main door panel 1 facing the outdoors, and a shielding edge 2.2 is arranged on the surroundings of the secondary door panel 2 to extend outward, so that the area of ​​the secondary door panel 2 is larger than that of the main door panel 1; The plate 1 and the auxiliary door plate 2 are welded to form a hollow door cavity, the vertical section of the hollow door cavity is a trapezoid, and the horizontal section is a rectangle; the inner wall of the hollow door cavity is coated with an anti-corrosion and heat-insulating paint layer 3; a heat-insulating and sound-insulating layer 4 and a sound-absorbing layer 5 are arranged in sequence in the hollow door cavity from the indoor surface to the outdoor surface, and a corrugated plate 6 is sandwiched between the heat-insulating and sound-insulating layer 4 and the sound-absorbing layer 5; a hinge piece installation portion 1.1 is provided on the fixed edge of the main door plate 1, and a hinge shaft groove 2.1 is provided on the fixed edge of the auxiliary door plate 2 for accommodating the hinge shaft; the width dimension of the shielding edge 2.2 is equal to the diameter dimension of the hinge shaft.

[0062] In this embodiment, the main door panel 1 and the auxiliary door panel 2 are made of metal with a thickness of 0.8 mm.

[0063] In this embodiment, the thickness of the anti-corrosion and heat-insulating paint layer 3 is 0.4 mm, and the coating of the anti-corrosion and heat-insulating paint layer 3 includes the following raw materials in parts by mass: 30 parts of water-based acrylic resin, 2 parts of polydecenyl butyl acrylate, 15 parts of silicone acrylic emulsion, 10 parts of hollow glass microspheres, 5 parts of pumice powder, 3 parts of zinc phosphate, 2 parts of aluminum tripolyphosphate, 0.5 parts of isomeric hexadecyl alcohol, 0.3 parts of polydimethylsiloxane, 0.3 parts of polyether polyester modified organic siloxane, 0.2 parts of bentonite, 0.5 parts of HDI trimer curing agent, and 60 parts of water; after the coating is applied and dried, the anti-corrosion and heat-insulating paint layer 3 is obtained.

[0064] In this embodiment, the thickness of the heat insulation and sound insulation layer 4 is 12 mm, and the material composition of the heat insulation and sound insulation layer 4 includes the following raw materials by mass: 30 parts of rock wool, 20 parts of glass wool, 10 parts of rubber particles, 5 parts of asphalt damping sheet, 10 parts of expanded perlite, 2 parts of aerogel, 5 parts of water-based polyurethane, 3 parts of acrylic emulsion, and 3 parts of acrylic ester C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 90 kg / m 3 A heat and sound insulation layer 4 is obtained.

[0065] In this embodiment, the thickness of the sound-absorbing layer 5 is 14 mm, and the material composition of the sound-absorbing layer 5 includes the following raw materials in parts by weight: 40 parts of melamine foam, 30 parts of polyester fiber sound-absorbing cotton, 10 parts of nano-silica aerogel, 5 parts of water-based adhesive, and 4 parts of acrylate C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 41 kg / m 3 The sound-absorbing layer 5.

[0066] In this embodiment, the corrugated plate 6 is made of rock wool board, with a thickness of 1 mm, a corrugation wavelength of 40 mm, and a corrugation height of 5 mm.

[0067] In this embodiment, the main door panel 1 and the auxiliary door panel 2 are also provided with door handles.

[0068] The above-mentioned method for preparing an industrial fireproof and soundproof metal composite door comprises the following steps:

[0069] S1: The main door panel 1 and the auxiliary door panel 2 are welded or pressed as one body to form a hollow door cavity with a trapezoidal vertical cross section, one side of the hollow door cavity is welded with a metal strip for edge sealing, and the other side is open; the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2;

[0070] S3: coating the inside of the hollow door cavity through the open edge, and after drying, obtaining an anticorrosive and heat-insulating paint layer 3;

[0071] S4: stacking, shearing and trimming the heat and sound insulation layer 4, the corrugated board 6 and the sound absorbing layer 5 in sequence to obtain a filling board;

[0072] S5: conveying a filling plate into the hollow door cavity through the open edge, and then welding the open edge with metal strips to seal the edge, thereby obtaining a metal composite door;

[0073] In S5, the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2; before the edge of the metal strip is sealed, the inner surface is coated with an anti-corrosion and heat-insulating paint layer 3, and the edge of the anti-corrosion and heat-insulating paint layer 3 is 1.5 mm away from the welding seam, so that the anti-corrosion and heat-insulating paint layer 3 does not affect the firmness of the metal strip welding.

[0074] Example 3

[0075] An industrial fireproof and soundproof metal composite door, such as Figures 1 to 8As shown, the structure of the metal composite door includes a main door panel 1, the top and bottom of the main door panel 1 are both inclined surfaces, the inclined surface angle is 45 degrees, the inclined surface of the top end is inclined upward from the indoor side to the outdoor side, and the inclined surface of the bottom end is inclined downward from the indoor side to the outdoor side. The door frame and the door sill matched with the main door panel have an inclined surface of 45 degrees, which is adapted to the inclined surfaces of the top and bottom ends of the main door panel; the side of the main door panel 1 facing the outdoors is provided with a secondary door panel 2, and the surrounding of the secondary door panel 2 is provided with a shielding edge 2.2 extending outward, so that the area of ​​the secondary door panel 2 is larger than that of the main door panel 1; the main door panel 1 and the auxiliary door panel 2 are integrally pressed to form a hollow door cavity, the vertical section of the hollow door cavity is a trapezoid, and the horizontal section is a rectangle; the inner wall of the hollow door cavity is coated with an anti-corrosion and heat-insulating paint layer 3; a heat-insulating and sound-insulating layer 4 and a sound-absorbing layer 5 are sequentially arranged in the hollow door cavity from the indoor surface to the outdoor surface, and a corrugated plate 6 is sandwiched between the heat-insulating and sound-insulating layer 4 and the sound-absorbing layer 5; a hinge piece installation portion 1.1 is arranged on the fixed edge of the main door panel 1, and a hinge shaft groove 2.1 is arranged on the fixed edge of the auxiliary door panel 2 for accommodating the hinge shaft; the width dimension of the shielding edge 2.2 is equal to the diameter dimension of the hinge shaft.

[0076] In this embodiment, the main door panel 1 and the auxiliary door panel 2 are made of metal with a thickness of 1.0 mm.

[0077] In this embodiment, the thickness of the anti-corrosion and heat-insulating paint layer 3 is 0.5 mm, and the coating of the anti-corrosion and heat-insulating paint layer 3 includes the following raw materials in parts by mass: 32 parts of water-based acrylic resin, 2.5 parts of polydecenyl butyl acrylate, 18 parts of silicone acrylic emulsion, 11 parts of hollow glass microspheres, 6 parts of pumice powder, 3.5 parts of zinc phosphate, 2.5 parts of aluminum tripolyphosphate, 0.6 parts of isomeric hexadecyl alcohol, 0.35 parts of polydimethylsiloxane, 0.35 parts of polyether polyester modified organic siloxane, 0.25 parts of bentonite, 0.6 parts of HDI trimer curing agent, and 68 parts of water; after the coating is applied and dried, the anti-corrosion and heat-insulating paint layer 3 is obtained.

[0078] In this embodiment, the thickness of the heat insulation and sound insulation layer 4 is 13 mm, and the material composition of the heat insulation and sound insulation layer 4 includes the following raw materials in parts by mass: 32 parts of rock wool, 22 parts of glass wool, 11 parts of rubber particles, 6 parts of asphalt damping sheet, 11 parts of expanded perlite, 2.5 parts of aerogel, 6 parts of waterborne polyurethane, 3.5 parts of acrylic emulsion, and 3.5 parts of acrylic ester C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 93 kg / m 3 Thermal and sound insulation layer 4.

[0079] In this embodiment, the thickness of the sound-absorbing layer 5 is 15 mm, and the material composition of the sound-absorbing layer 5 includes the following raw materials in parts by mass: 42 parts of melamine foam, 32 parts of polyester fiber sound-absorbing cotton, 11 parts of nano-silica aerogel, 6 parts of water-based adhesive, and 5 parts of acrylate C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 44 kg / m 3 The sound-absorbing layer 5.

[0080] In this embodiment, the corrugated plate 6 is made of rock wool board, with a thickness of 1.4 mm, a corrugation wavelength of 45 mm, and a corrugation height of 6 mm.

[0081] In this embodiment, the main door panel 1 and the auxiliary door panel 2 are also provided with door handles.

[0082] The above-mentioned method for preparing an industrial fireproof and soundproof metal composite door comprises the following steps:

[0083] S1: The main door panel 1 and the auxiliary door panel 2 are welded or pressed as one body to form a hollow door cavity with a trapezoidal vertical cross section, one side of the hollow door cavity is welded with a metal strip for edge sealing, and the other side is open; the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2;

[0084] S3: coating the inside of the hollow door cavity through the open edge, and after drying, obtaining an anticorrosive and heat-insulating paint layer 3;

[0085] S4: stacking, shearing and trimming the heat and sound insulation layer 4, the corrugated board 6 and the sound absorbing layer 5 in sequence to obtain a filling board;

[0086] S5: conveying a filling plate into the hollow door cavity through the open edge, and then welding the open edge with metal strips to seal the edge, thereby obtaining a metal composite door;

[0087] In S5, the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2; before the edge of the metal strip is sealed, the inner surface is coated with an anti-corrosion and heat-insulating paint layer 3, and the edge of the anti-corrosion and heat-insulating paint layer 3 is 1.8 mm away from the welding seam, so that the anti-corrosion and heat-insulating paint layer 3 does not affect the firmness of the metal strip welding.

[0088] Example 4

[0089] An industrial fireproof and soundproof metal composite door, such as Figures 1 to 8As shown, the structure of the metal composite door includes a main door panel 1, the top and bottom of the main door panel 1 are both inclined surfaces, the inclined surface angle is 65 degrees, the inclined surface of the top is inclined upward from the indoor side to the outdoor side, and the inclined surface of the bottom is inclined downward from the indoor side to the outdoor side. The door frame and the door sill matched with the main door panel have an inclined surface of 65 degrees, which is adapted to the inclined surfaces of the top and bottom ends of the main door panel; the main door panel 1 is provided with a secondary door panel 2 on the side facing the outdoors, and the secondary door panel 2 is provided with a shielding edge 2.2 extending outwardly around the secondary door panel 2, so that the area of ​​the secondary door panel 2 is larger than that of the main door panel 1; the main door panel 1 and the auxiliary door panel 2 are integrally pressed to form a hollow door cavity, the vertical section of the hollow door cavity is a trapezoid, and the horizontal section is a rectangle; the inner wall of the hollow door cavity is coated with an anti-corrosion and heat-insulating paint layer 3; a heat-insulating and sound-insulating layer 4 and a sound-absorbing layer 5 are sequentially arranged in the hollow door cavity from the indoor surface to the outdoor surface, and a corrugated plate 6 is sandwiched between the heat-insulating and sound-insulating layer 4 and the sound-absorbing layer 5; a hinge piece installation portion 1.1 is arranged on the fixed edge of the main door panel 1, and a hinge shaft groove 2.1 is arranged on the fixed edge of the auxiliary door panel 2 for accommodating the hinge shaft; the width dimension of the shielding edge 2.2 is equal to the diameter dimension of the hinge shaft.

[0090] In this embodiment, the main door panel 1 and the auxiliary door panel 2 are made of metal with a thickness of 1.4 mm.

[0091] In this embodiment, the thickness of the anti-corrosion and heat-insulating paint layer 3 is 0.8 mm, and the coating of the anti-corrosion and heat-insulating paint layer 3 includes the following raw materials in parts by mass: 40 parts of water-based acrylic resin, 5 parts of polydecenyl butyl acrylate, 25 parts of silicone acrylic emulsion, 15 parts of hollow glass microspheres, 10 parts of pumice powder, 5 parts of zinc phosphate, 4 parts of aluminum tripolyphosphate, 1 part of isomeric hexadecyl alcohol, 0.5 parts of polydimethylsiloxane, 0.5 parts of polyether polyester modified organic siloxane, 0.5 parts of bentonite, 1 part of HDI trimer curing agent, and 90 parts of water; after the coating is applied and dried, the anti-corrosion and heat-insulating paint layer 3 is obtained.

[0092] In this embodiment, the thickness of the heat insulation and sound insulation layer 4 is 16 mm, and the material composition of the heat insulation and sound insulation layer 4 includes the following raw materials by mass: 40 parts of rock wool, 30 parts of glass wool, 15 parts of rubber particles, 10 parts of asphalt damping sheet, 15 parts of expanded perlite, 5 parts of aerogel, 10 parts of waterborne polyurethane, 5 parts of acrylic emulsion, and 5 parts of acrylic ester C10-30 alkanol acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 96 kg / m 3 Thermal and sound insulation layer 4.

[0093] In this embodiment, the thickness of the sound-absorbing layer 5 is 20 mm, and the material composition of the sound-absorbing layer 5 includes the following raw materials in parts by mass: 50 parts of melamine foam, 40 parts of polyester fiber sound-absorbing cotton, 15 parts of nano-silica aerogel, 10 parts of water-based adhesive, and 8 parts of acrylate C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 47 kg / m 3 The sound-absorbing layer 5.

[0094] In this embodiment, the corrugated plate 6 is made of rock wool board, with a thickness of 2 mm, a corrugation wavelength of 60 mm, and a corrugation height of 8 mm.

[0095] In this embodiment, the main door panel 1 or the auxiliary door panel 2 is also provided with a door lock component; the main door panel 1 and the auxiliary door panel 2 are also provided with door handles.

[0096] The above-mentioned method for preparing an industrial fireproof and soundproof metal composite door comprises the following steps:

[0097] S1: The main door panel 1 and the auxiliary door panel 2 are welded or pressed as one body to form a hollow door cavity with a trapezoidal vertical cross section, one side of the hollow door cavity is welded with a metal strip for edge sealing, and the other side is open; the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2;

[0098] S3: coating the inside of the hollow door cavity through the open edge, and after drying, obtaining an anticorrosive and heat-insulating paint layer 3;

[0099] S4: stacking, shearing and trimming the heat and sound insulation layer 4, the corrugated board 6 and the sound absorbing layer 5 in sequence to obtain a filling board;

[0100] S5: conveying a filling plate into the hollow door cavity through the open edge, and then welding the open edge with metal strips to seal the edge, thereby obtaining a metal composite door;

[0101] In S5, the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2; before the edge of the metal strip is sealed, the inner surface is coated with an anti-corrosion and heat-insulating paint layer 3, and the edge of the anti-corrosion and heat-insulating paint layer 3 is 2.5 mm away from the welding seam, so that the anti-corrosion and heat-insulating paint layer 3 does not affect the firmness of the metal strip welding.

[0102] Example 5

[0103] An industrial fireproof and soundproof metal composite door, such as Figures 1 to 8As shown, the structure of the metal composite door includes a main door panel 1, the top and bottom of the main door panel 1 are both inclined surfaces, the inclined surface angle is 55 degrees, the inclined surface of the top is inclined upward from the indoor side to the outdoor side, and the inclined surface of the bottom is inclined downward from the indoor side to the outdoor side. The door frame and the door sill matched with the main door panel have an inclined surface of 55 degrees, which is adapted to the inclined surfaces of the top and bottom ends of the main door panel; the main door panel 1 is provided with a secondary door panel 2 on the side facing the outdoors, and the secondary door panel 2 is provided with a shielding edge 2.2 extending outwardly around the secondary door panel 2, so that the area of ​​the secondary door panel 2 is larger than that of the main door panel 1; the main door The plate 1 and the auxiliary door plate 2 are welded to form a hollow door cavity, the vertical section of the hollow door cavity is a trapezoid, and the horizontal section is a rectangle; the inner wall of the hollow door cavity is coated with an anti-corrosion and heat-insulating paint layer 3; a heat-insulating and sound-insulating layer 4 and a sound-absorbing layer 5 are arranged in sequence in the hollow door cavity from the indoor surface to the outdoor surface, and a corrugated plate 6 is sandwiched between the heat-insulating and sound-insulating layer 4 and the sound-absorbing layer 5; a hinge piece installation portion 1.1 is provided on the fixed edge of the main door plate 1, and a hinge shaft groove 2.1 is provided on the fixed edge of the auxiliary door plate 2 for accommodating the hinge shaft; the width dimension of the shielding edge 2.2 is equal to the diameter dimension of the hinge shaft.

[0104] In this embodiment, the main door panel 1 and the auxiliary door panel 2 are made of metal with a thickness of 1.2 mm.

[0105] In this embodiment, the thickness of the anti-corrosion and heat-insulating paint layer 3 is 0.7 mm, and the coating of the anti-corrosion and heat-insulating paint layer 3 includes the following raw materials in parts by mass: 38 parts of water-based acrylic resin, 4 parts of polydecenyl butyl acrylate, 22 parts of silicone acrylic emulsion, 14 parts of hollow glass microspheres, 8.5 parts of pumice powder, 4.5 parts of zinc phosphate, 3.5 parts of aluminum tripolyphosphate, 0.8 parts of isomeric hexadecyl alcohol, 0.45 parts of polydimethylsiloxane, 0.45 parts of polyether polyester modified organic siloxane, 0.45 parts of bentonite, 0.8 parts of HDI trimer curing agent, and 82 parts of water; after the coating is applied and dried, the anti-corrosion and heat-insulating paint layer 3 is obtained.

[0106] In this embodiment, the thickness of the heat insulation and sound insulation layer 4 is 15 mm, and the material composition of the heat insulation and sound insulation layer 4 includes the following raw materials in parts by mass: 38 parts of rock wool, 28 parts of glass wool, 14 parts of rubber particles, 8 parts of asphalt damping sheet, 14 parts of expanded perlite, 4 parts of aerogel, 9 parts of water-based polyurethane, 4.5 parts of acrylic emulsion, and 4.5 parts of acrylic ester C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 98 kg / m 3 Thermal and sound insulation layer 4.

[0107] In this embodiment, the thickness of the sound-absorbing layer 5 is 18 mm, and the material composition of the sound-absorbing layer 5 includes the following raw materials in parts by mass: 48 parts of melamine foam, 38 parts of polyester fiber sound-absorbing cotton, 14 parts of nano-silica aerogel, 8 parts of water-based adhesive, and 7 parts of acrylate C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain a density of 46 kg / m 3 The sound-absorbing layer 5.

[0108] In this embodiment, the corrugated plate 6 is made of rock wool board, with a thickness of 1.8 mm, a corrugation wavelength of 55 mm, and a corrugation height of 7 mm.

[0109] In this embodiment, the main door panel 1 or the auxiliary door panel 2 is also provided with a door lock component; the main door panel 1 and the auxiliary door panel 2 are also provided with door handles.

[0110] The above-mentioned method for preparing an industrial fireproof and soundproof metal composite door comprises the following steps:

[0111] S1: The main door panel 1 and the auxiliary door panel 2 are welded or pressed as one body to form a hollow door cavity with a trapezoidal vertical cross section, one side of the hollow door cavity is welded with a metal strip for edge sealing, and the other side is open; the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2;

[0112] S3: coating the inside of the hollow door cavity through the open edge, and after drying, obtaining an anticorrosive and heat-insulating paint layer 3;

[0113] S4: stacking, shearing and trimming the heat and sound insulation layer 4, the corrugated board 6 and the sound absorbing layer 5 in sequence to obtain a filling board;

[0114] S5: conveying a filling plate into the hollow door cavity through the open edge, and then welding the open edge with metal strips to seal the edge, thereby obtaining a metal composite door;

[0115] In S5, the thickness of the metal strip is equal to the thickness of the main door panel 1 or the auxiliary door panel 2; before the edge of the metal strip is sealed, the inner surface is coated with an anti-corrosion and heat-insulating paint layer 3, and the edge of the anti-corrosion and heat-insulating paint layer 3 is 2.2 mm away from the welding seam, so that the anti-corrosion and heat-insulating paint layer 3 does not affect the firmness of the metal strip welding.

[0116] In the above embodiments, the main door panel 1, the auxiliary door panel 2 and the metal strip are all made of 304 stainless steel. The particle size of pumice powder is less than 100 μm. The length of rock wool is less than 5 cm and the diameter is less than 30 μm. The length of glass wool is less than 5 cm and the diameter is less than 30 μm. The particle size of rubber particles is less than 3 mm. The thickness of asphalt damping plate is less than 1.5 mm and the diameter is less than 3 mm. The particle size of expanded perlite is less than 500 μm. The diameter of melamine foam is less than 1.5 mm. The polyester fiber sound-absorbing cotton is fibrous, and the length of the fiber is less than 2 cm and the diameter is less than 30 μm. The HDI trimer curing agent is hexamethylene diisocyanate trimer, which is sourced from Shandong Weishang Chemical Co., Ltd. Acrylate C10-30 alkyl acrylate cross-linked polymer is sourced from Zhongshan Yuanda New Materials Co., Ltd.

[0117] Comparative Example 1

[0118] The inner wall of the hollow door cavity is not coated with the anti-corrosion and heat-insulating paint layer 3; other structures, parameters and methods are the same as those in Example 1.

[0119] Comparative Example 2

[0120] No isomeric hexadecanol, polyether polyester modified organic siloxane and HDI trimer curing agent are added to the coating of the anti-corrosion and heat-insulating paint layer 3; other structures, parameters and methods are the same as those in Example 1.

[0121] Comparative Example 3

[0122] No acrylate C10-30 alkyl acrylate cross-linked polymer is added to the material of the heat-insulating and sound-insulating layer 4; other structures, parameters and methods are the same as those in Example 1.

[0123] Comparative Example 4

[0124] The material of the heat-insulating and sound-insulating layer 4 does not include rubber particles, asphalt damping sheets, and acrylic acid ester C10-30 alkyl acrylate cross-linked polymers; other structures, parameters, and methods are the same as those of Example 1.

[0125] Comparative Example 5

[0126] No acrylate C10-30 alkyl acrylate cross-linked polymer is added to the material of the sound-absorbing layer 5; other structures, parameters and methods are the same as those in Example 1.

[0127] Comparative Example 6

[0128] The corrugated plate 6 is a flat plate without waveforms; other structures, parameters and methods are the same as those in the first embodiment.

[0129] Comparative Example 7

[0130] The thickness of the corrugated plate 6 is 1.5 mm, the corrugation wavelength is 80 mm, and the corrugation height is 4 mm; other structures, parameters and methods are the same as those in Example 1.

[0131] Comparative Example 8

[0132] The inner wall of the hollow door cavity is not coated with the anti-corrosion and heat-insulating paint layer 3; the material of the heat-insulating and sound-insulating layer 4 does not contain rubber particles, asphalt damping sheets, and acrylate C10-30 alkyl acrylate cross-linked polymers; the material of the sound-absorbing layer 5 does not contain acrylate C10-30 alkyl acrylate cross-linked polymers; the corrugated plate 6 is a flat plate without waveforms; other structures, parameters, and methods are the same as those in Example 1.

[0133] Comparative Example 9

[0134] The top and bottom of the main door panel 1 are both flat surfaces; other structures, parameters and methods are the same as those in Example 1.

[0135] The above-mentioned embodiments and comparative examples are prepared into full-size experimental samples of one-way opening metal composite doors for performance testing.

[0136] 1. Fire resistance test

[0137] According to the methods and standards of GB / T7633 "Fire resistance test methods for doors and roller shutters" and GB12955 "Fire doors", a fire test furnace was used to carry out a fire environment simulation burning test experiment, which met the conditions of GB / T7633 "Fire resistance test methods for doors and roller shutters" for fire resistance integrity and fire resistance insulation. The specific results are shown in Table 1 below.

[0138]

[0139] It can be seen from the above results that the metal composite doors of Examples 1 to 5 have excellent fire resistance and heat insulation, and greatly extend the fire resistance time. It can be seen from the results of Comparative Example 1 that the anti-corrosion and heat-insulating paint layer has good heat insulation and can assist in reducing the temperature speed of the back fan. It can be seen from the results of Comparative Example 2 that the absence of isomeric hexadecyl alcohol, polyether polyester modified organic siloxane and HDI trimer curing agent in the coating will affect the quality of the coating and thus affect the heat insulation effect of the coating. It can be seen from the results of Comparative Example 3 that the C10-30 alkyl acrylate cross-linked polymer of acrylates is not added to the material of the thermal insulation and sound insulation layer, which affects the binding and homogeneity of the components of the thermal insulation and sound insulation layer, and thus affects the thermal insulation effect of the thermal insulation and sound insulation layer. It can be seen from the results of Comparative Example 4 that the absence of rubber particles, asphalt damping sheets and C10-30 alkyl acrylate cross-linked polymers of acrylates in the material of the thermal insulation and sound insulation layer will affect the decline in heat insulation. It can be seen from the results of comparative example 5 that the acrylate C10-30 alkyl acrylate cross-linked polymer is not added to the material of the sound-absorbing layer, which has little effect on the fire resistance and heat insulation. It can be seen from the results of comparative example 6 that the corrugated board is a flat plate, and the support and constraint of the internal heat insulation and sound insulation layer and the sound insulation layer are poor. After being heated for a long time, the internal heat insulation and sound insulation layer and the sound insulation layer are easily deformed, thereby driving the door panel to deform. It can be seen from the results of comparative example 7 that increasing the wavelength of the corrugated board and reducing the corrugation height will affect the performance of the corrugated board, and the door panel is relatively easy to deform. It can be seen from the results of comparative example 8 that the inner wall of the hollow door cavity is not coated with an anti-corrosion and heat insulation paint layer, and rubber particles, asphalt damping sheets and acrylate C10-30 alkyl acrylate cross-linked polymers are not added to the material of the heat insulation and sound insulation layer, and acrylate C10-30 alkyl acrylate cross-linked polymers are not added to the material of the sound insulation layer, and the corrugated board is a flat plate. Changes in multiple parameters will greatly reduce the fire resistance and heat insulation of the metal composite door. Fire integrity. It can be seen from the results of Comparative Example 9 that the top and bottom ends of the main door panel are both flat, which will reduce the installation adaptability of the door and easily cause smoke leakage problems.

[0140] 2. Sound insulation test

[0141] The volume of the sound source room is 120m 3 (temperature is 20℃, humidity is 65%), the receiving room volume is 90m 3 (temperature is 20℃, humidity is 65%), the sound insulation performance is tested with a noise tester, the sound source in the sound source room is 0.5m away from the door, and the measuring point in the receiving room is 0.5m away from the door; the sound source is set to 100dB, 250dB, 500dB, 1000dB, 2000dB, and 5000dB for testing and calculation, the transmission loss sound pressure level = sound pressure level at the sound source - sound pressure level at the measurement point, the results are shown in Table 2 below.

[0142]

[0143] It can be seen from the above results that the metal composite doors of Examples 1 to 5 have excellent sound insulation, can greatly improve low-frequency sound insulation, and the 100dB transmission loss sound pressure reaches more than 70dB. From the results of Comparative Example 1, it can be seen that the anti-corrosion and heat-insulating paint layer has a certain auxiliary effect of sound insulation. From the results of Comparative Example 2, it can be seen that the absence of isomeric hexadecyl alcohol, polyether polyester modified organic siloxane and HDI trimer curing agent in the coating will affect the density of the coating, and thus affect the sound insulation of the coating, but the effect is not significant. From the results of Comparative Example 3, it can be seen that the material of the thermal insulation and sound insulation layer does not add acrylate C10-30 alkyl acrylate cross-linked polymer, which affects the binding and homogeneity of the components of the thermal insulation and sound insulation layer, and thus affects the decline in sound insulation effect. From the results of Comparative Example 4, it can be seen that the absence of rubber particles, asphalt damping sheets and acrylate C10-30 alkyl acrylate cross-linked polymers in the material of the thermal insulation and sound insulation layer seriously affects the decline in sound insulation. It can be seen from the results of Comparative Example 5 that the material of the sound-absorbing layer does not add C10-30 alkyl acrylate cross-linked polymer of acrylic esters, which affects the binding of the components and affects the decrease in sound insulation. It can be seen from the results of Comparative Example 6 that the corrugated plate is a flat plate, has no sound wave disturbance effect, and the sound insulation is reduced. It can be seen from the results of Comparative Example 7 that increasing the wavelength of the corrugated plate and reducing the corrugation height will affect the turbulent sound wave performance of the corrugated plate, and the sound insulation is relatively reduced. It can be seen from the results of Comparative Example 8 that the inner wall of the hollow door cavity is not coated with an anti-corrosion and heat-insulating paint layer, and rubber particles, asphalt damping sheets and C10-30 alkyl acrylate cross-linked polymer of acrylic esters are not added to the material of the heat-insulating and sound-insulating layer, and C10-30 alkyl acrylate cross-linked polymer of acrylic esters is not added to the material of the sound-absorbing layer, and the corrugated plate is a flat plate. The changes in multiple parameters will greatly reduce the sound insulation of the metal composite door, especially the low-frequency sound insulation is greatly reduced. It can be seen from the results of Comparative Example 9 that the top and bottom ends of the main door panel are both flat, which will reduce the installation adaptability of the door, and sound leakage is likely to occur between the door panel and the door frame, thereby reducing the sound insulation.

Claims

1. An industrial fireproof and soundproof metal composite door, characterized in that: The structure of the metal composite door comprises a main door panel (1), wherein the top and bottom ends of the main door panel (1) are both inclined surfaces, the inclined surface of the top end is inclined upward from the indoor side to the outdoor side, and the inclined surface of the bottom end is inclined downward from the indoor side to the outdoor side; a secondary door panel (2) is arranged on the side of the main door panel (1) facing the outdoor, and a shielding edge (2.2) is arranged on the surrounding of the secondary door panel (2) extending outward, so that the area of ​​the secondary door panel (2) is larger than that of the main door panel (1); the main door panel (1) and the secondary door panel (2) are combined to form a hollow door cavity, and the inner wall of the hollow door cavity is coated with an anti-corrosion and heat-insulating paint layer (3); a heat-insulating and sound-insulating layer (4) and a sound-absorbing layer (5) are arranged in sequence in the hollow door cavity from the indoor side to the outdoor side, and a corrugated plate (6) is sandwiched between the heat-insulating and sound-insulating layer (4) and the sound-absorbing layer (5); The thickness of the anticorrosion and heat-insulating paint layer (3) is 0.4 mm to 0.8 mm. The coating of the anticorrosion and heat-insulating paint layer (3) comprises the following raw materials in parts by weight: 30 to 40 parts of water-based acrylic resin, 2 to 5 parts of polydecenyl butyl acrylate, 15 to 25 parts of silicone acrylic emulsion, 10 to 15 parts of hollow glass microspheres, 5 to 10 parts of pumice powder, 3 to 5 parts of zinc phosphate, 2 to 4 parts of aluminum tripolyphosphate, 0.5 to 1 part of isomeric hexadecyl alcohol, 0.3 to 0.5 parts of polydimethylsiloxane, 0.3 to 0.5 parts of polyether polyester modified organic siloxane, 0.2 to 0.5 parts of bentonite, 0.5 to 1 parts of HDI trimer curing agent, and 60 to 90 parts of water. After the coating is applied and dried, an anticorrosion and heat-insulating paint layer (3) is obtained; The thickness of the heat-insulating and sound-insulating layer (4) is 12 mm to 16 mm. The material composition of the heat-insulating and sound-insulating layer (4) includes the following raw materials in parts by weight: 30 to 40 parts of rock wool, 20 to 30 parts of glass wool, 10 to 15 parts of rubber particles, 5 to 10 parts of asphalt damping sheet, 10 to 15 parts of expanded perlite, 2 to 5 parts of aerogel, 5 to 10 parts of waterborne polyurethane, 3 to 5 parts of acrylic emulsion, and 3 to 5 parts of acrylic ester C10-30 alkanol acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed and cured to obtain the heat-insulating and sound-insulating layer (4); The thickness of the sound-absorbing layer (5) is 14 mm to 20 mm. The material composition of the sound-absorbing layer (5) includes the following raw materials in parts by weight: 40 parts to 50 parts of melamine foam, 30 parts to 40 parts of polyester fiber sound-absorbing cotton, 10 parts to 15 parts of nano-silica aerogel, 5 parts to 10 parts of water-based adhesive, and 4 parts to 8 parts of acrylate C10-30 alkyl acrylate cross-linked polymer; the raw materials are mixed, injection molded, pressed, and cured to obtain the sound-absorbing layer (5); The corrugated plate (6) is made of rock wool board, has a thickness of 1 mm to 2 mm, a corrugation wavelength of 40 mm to 60 mm, and a corrugation height of 5 mm to 8 mm.

2. The industrial fireproof and soundproof metal composite door according to claim 1, characterized in that: The top and bottom bevels of the main door panel (1) have an inclination angle of 40° to 65°; the door frame and door sill that match the main door panel both have a bevel of 40° to 65°, matching the bevels of the top and bottom of the main door panel.

3. The industrial fireproof and soundproof metal composite door according to claim 1, characterized in that: The main door panel (1) and the auxiliary door panel (2) are welded to form a hollow door cavity, or the main door panel (1) and the auxiliary door panel (2) are pressed together to form a hollow door cavity; the vertical cross section of the hollow door cavity is a trapezoid, and the horizontal cross section is a rectangle.

4. The industrial fireproof and soundproof metal composite door according to claim 1, characterized in that: The main door panel (1) and the auxiliary door panel (2) are made of metal and have a thickness of 0.8 mm to 1.4 mm.

5. The industrial fireproof and soundproof metal composite door according to claim 1, characterized in that: The fixed edge of the main door panel (1) is provided with a hinge piece installation portion (1.1), and the fixed edge of the auxiliary door panel (2) is provided with a hinge shaft groove (2.1) for accommodating the hinge shaft; the width dimension of the shielding edge (2.2) is equal to the diameter dimension of the hinge shaft.

6. A method for preparing an industrial fireproof and soundproof metal composite door, used for preparing an industrial fireproof and soundproof metal composite door according to claim 1, characterized in that: The preparation method comprises the following steps: S1: welding or integrally pressing the main door panel (1) and the auxiliary door panel (2) to form a hollow door cavity with a trapezoidal vertical cross-section, welding a metal strip to seal one side of the hollow door cavity, and leaving the other side open; S3: coating the inside of the hollow door cavity through the open edge, and after drying, obtaining an anti-corrosion and heat-insulating paint layer (3); S4: stacking, shearing and trimming the heat and sound insulation layer (4), the corrugated board (6) and the sound-absorbing layer (5) in sequence to obtain a filling board; S5: conveying a filling plate into the hollow door cavity through the open edge, and then welding the open edge with metal strips to seal the edge, thereby obtaining a metal composite door; In S5, before edge sealing, the inner surface of the metal strip is coated with an anti-corrosion and heat-insulating paint layer (3), and the edge of the anti-corrosion and heat-insulating paint layer (3) is 1.5 mm to 2.5 mm away from the welding seam.

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