51results about How to "With sound insulation and noise reduction" patented technology

The invention relates to a washable ecologic wall material capable of decomposing formaldehyde. The invention not only can be used for decomposing and absorbing the formaldehyde, improving indoor moisture and absorbing indoor water content, but also is very convenient to wash and brings great convenience for people to clean the wall. The washable ecologic wall material capable of decomposing the formaldehyde is characterized by being prepared from the following components in percentage by weight: 18-29 percent of diatomite, 25-30 percent of quartz sand, 0.1 percent of fiber, 15-18 percent of bentonite, 1-3 percent of adhesive, 12-17 percent of ash calcium, 13-18 percent of water retention agent, 5-8 percent of formaldehyde purifier, 3-6.1 percent of titanium dioxide and 3-7 percent of anion powder. The invention further improves a traditional original wall material to satisfy the market needs and bring convenience and benefits to the life of people.

The invention discloses a soil chemical stabilizer formula and an application. The formula is characterized by comprising raw material components in parts by weight: 70-93 parts of sulfuric acid, 3-30parts of rosin oil, 1-6 parts of wetting agent, 0.5-1.7 parts of dispersing agent and 0.3-1.5 parts of thickening agent. Soil and the soil chemical stabilizer are stirred evenly for compaction and maintenance under the condition of the optimum water content, wherein the addition amount of the soil chemical stabilizer accounts for 0.01-0.04% of the soil; the soil chemical stabilizer can be used independently, while a little of concrete or lime needs to be added in many cases; the construction of the stabilizer adopts traditional equipment, and the construction method is the same as the conventional process. The soil chemical stabilizer has the characteristics of low cost, excellent performance and environmental friendly materials, and can be widely applied in the fields, such as subgrade construction, water conservancy construction, country roads, temporary sites, low cost road pavements, wall building and brick making and the like.

The invention discloses a polyester fiber reinforced anti-cracking diatom ooze material, and a preparation method thereof. The polyester fiber reinforced anti-cracking diatom ooze material comprises, by mass, 15 to 35 parts of diatomite, 20 to 40 parts of heavy calcium carbonate, 8 to 20 parts of ash calcium powder, 8 to 20 parts of quartz sand, 2 to 5 parts of nanometer titanium dioxide, 1 to 4 parts of tourmaline, 0.5 to 2.5 parts of cellulose ether, 0.1 to 0.5 part of pregelatinized starch, and 0.1 to 2 parts of polyester fiber. According to the preparation method, diatomite, heavy calcium carbonate, ash calcium powder, quartz sand, nanometer titanium dioxide, tourmaline, and polyester fiber are taken as the raw materials, nontoxic and renewable adhesives cellulose ether and pregelatinized starch are also added, so that the obtained polyester fiber reinforced anti-cracking diatom ooze material possesses excellent cracking resistance and anti-pulverization ability; the preparation method is safe, and is friendly to the environment; production cost is low; and large-scale production can be realized easily.

The invention discloses an anti-static foam glass heat insulation and cold insulation material and a preparation method thereof. The preparation method comprises the steps of: carrying out ultra-refining fusion permo-treatment on a special high-temperature resistant conductive metallurgical powder material and a metal oxide serving as adding materials for realizing phase modification; controlling the combustion atmosphere by using a special process, expanding at a high temperature and sintering for forming; and finally, annealing and cooling to prepare the anti-static foam glass heat insulation and cold insulation material. The anti-static foam glass heat insulation and cold insulation material maintains the advantages of water prevention, heat insulation, cold insulation, water and moisture prevention, good chemical stability, sound insulation, noise reduction and the like of foam glass, and has a permanent conductive (static) and static dissipative function. The use space and the application range of the foam glass material are expanded.

The invention relates to a method for preparing a stoneware batten for a fabricated building by utilizing industrial solid waste. The stoneware batten is formed by mixing solid powder and water according to the weight ratio of 1: (0.1-0.25), and comprises the following components in percentage by weight: 75%-95% of solid waste raw materials; 3%-15% of raw mineral materials; and 2%-10% of chemical raw materials. The method comprises the following steps: preparing formula raw materials; mixing and stirring; homogenizing and aging; performing vacuum pugging; performing extrusion molding; drying the green body; sintering at high temperature; and processing. The technical problems that a traditional wall material is large in volume weight, poor in waterproof effect and poor in energy-saving and heat-preserving effect are well solved.

The invention discloses a composite roller blind door/window. The composite roller blind door/window comprises a bridge cutoff aluminum alloy door/window, an aluminum alloy roller blind window and a screen window, and is integrally designed; covers of the aluminum alloy door/window and the roller blind window both prevent heat transfer through an insulation bridge cutoff technology so as to keep the indoor temperature to achieve an energy-saving effect. The roller blind window is mounted outside glass of the aluminum alloy door/window for adjusting the indoor lighting. When the screen window is opened, mosquitoes are prevented from entering inside. The lifting and the overturning of roller blinds are controlled by a driving mechanism; an electric remote controller is prepared; and a controller can enable the roller blinds to be stopped and locked in any position without dropping, so that the stopping is stable. Meanwhile, the composite roller blind door/window further comprises a temperature/humidity induction probe for intelligently controlling the opening and closing of the outer sunshading and energy-saving roller blind window according to the value of external temperature/humidity, so that the composite roller blind door/window is more energy-conserving and environment-friendly.

The invention discloses a soundproof sterilizing PVC composite board which sequentially comprises a PVC layer, a bonding layer, a substrate layer and a photocatalytic nano layer, wherein two sides of the bonding layer are bonded to the PVC layer and the substrate layer in a covering manner separately; a soundproof layer also covers the surface of the PVC layer; the soundproof layer comprises a bottom plate and a plurality of hemispherical soundproof shells, wherein the hemispherical soundproof shells are densely distributed on the surface of the bottom plate uniformly; the back surface of the bottom plate covers the PVC layer; and the photocatalytic nano layer covers the surface of the soundproof layer and fills the gap in the soundproof shell. The soundproof sterilizing PVC composite board has the advantages of moisture protection, sterilization, sound insulation, noise reduction and firm structure, and is suitable for being used as a wall decorating plate for home decoration.

The invention discloses a cold-bending thin-walled steel lattice column composite wall with a built-in straw grass brick. The wall comprises a composite wall skeleton formed by a cold-bending thin-walled steel lattice column and a top guide rail and a bottom guide rail, the composite wall skeleton is filled with the straw grass brick, and cover panels are fixed to both sides of the composite wallskeleton. The wall has high shear resistance and compression bearing capacity and large out-of-plane stiffness, provides convenience for the combination wall to absorb and dissipate seismic energy, has the advantages of green environmental protection, thermal insulation, sound insulation and noise reduction, and achieves structural heat insulation integration. In a low-rise and multi-story steel structure building, the strength, stiffnes and ability to absorb and dissipate the seismic energy of the structure can be significantly improved, it is convenient to manufacture and process, the wall can be prefabricated and produced in a plant, and on-site assembly and construction are achieved; waste is turned into a treasure, which can produce good social and economic benefits, help to protect the environment, promote the sustainable development of green buildings and has broad application prospects.

The invention discloses a gypsum board with composite glass fiber veneering felts on surfaces, and relates to decorative boards for buildings. The gypsum board is mainly composed of a gypsum board core layer and the composite glass fiber veneering felts which are attached to the outer sides of the gypsum board core layer, and the composite glass fiber veneering felts comprise following raw materials of, by weight, 35-50 parts of glass fiber chopped wires, 30-45 parts of polyester fibers, and 10-25 parts of wood fibers; and the glass fiber chopped wires have a diameter of 30-35 mu and a lengthof 30-35 mm, the polyester fibers have a diameter of 20-30 mu and a length of 30-35 mm, and the wood fibers have a diameter of 14-20 mu and a length of 20-30 mm. According to the gypsum board with thecomposite glass fiber veneering felts on the surfaces, various fiber materials such as glass fibers, the polyester fibers and the wood fibers to form the composite glass fiber veneering felts with the effects of fire retardant, sound proofing and noise reduction and water proofing and mould proofing; and the composite glass fiber veneering felts are combined with a gypsum board core, or special materials are added into the gypsum board core, so that the effects of the fire retardant, the sound proofing and noise reduction and the water proofing and mould proofing are improved, and the servicelife is prolonged.

An air heating passage (20) is provided, which includes a passage (22) allowing air to flow through and a heating device (24) installed in the passage (22) for heating the air passing through the passage (22), whereby at least one part of the passage (22) is made of a foam material. A fabric drying apparatus (10) is also provided, which includes a rotatable drum (4) for accommodating fabrics and the air heating passage (20) for heating air and sending the heated air into the drum (4).

The invention discloses an integrated glass window with a built-in metal roller blind. The integrated glass window comprises a metal roller blind window, wherein the metal roller blind window comprises a motor, a rotating shaft (4) and a metal sunshade curtain sheet (5); the motor and the rotating shaft (4) are positioned in a roller blind box (6) arranged on the top of a window frame (1) and are in transmission connection; the metal sunshade curtain sheet (5) is wound on the rotating shaft (4); a left curtain sheet guide slot (7) and a right curtain sheet guide slot (8) are respectively formed in the left side and the right side of the window frame (1) and are integrated with the window frame (1); the left side and the right side of the metal sunshade curtain sheet (5) are respectively positioned in the left curtain sheet guide slot (7) and the right curtain sheet guide slot (8); the motor drives the rotating shaft (4) to rotate; the rotating shaft (4) drives the metal sunshade curtain sheet (5) to be coiled or uncoiled; the two sides of the metal sunshade curtain sheet (5) move up and down in the left curtain sheet guide slot (7) and the right curtain sheet guide slot (8).

A ballastless track structure includes a foundation and a track slab. The foundation and/or the track slab is made of metal plates; each metal plate comprises a first panel, a second panel and a plurality of hollow tubes arranged between the first panel and the second panel, and brazing layers are arranged between the hollow tubes and the first and second panels correspondingly; and at least one end of each hollow tube is provided with a flange. On the one hand, the ballastless track structure has the advantages of light dead weight, large strength, stable structure, high bearing capacity, sound insulation and noise reduction, high temperature resistance, vibration resistance, long service life, portability, assembly and the like; and on the other hand, the ballastless track structure canincrease the speed of rail vehicles such as high-speed trains and bullet trains.

The invention belongs to the technical field of automobile part preparation, and discloses an engine bottom protection plate which is composed of a continuous fiber reinforced thermoplastic material and a light thermoplastic reinforced material, which are in fusion connection through resin. The invention further discloses an inspection process of the engine bottom protection plate. The engine bottom protection plate is formed through steps of: baking and heating, rapid transfer, stacking, compression molding, and cutting in later period. According to the production process of the multi-material composite engine bottom protection plate, the problem of connection strength among multiple materials is solved through material preheating temperature control and transfer duration optimization, and the prepared engine bottom protection plate has the advantages of being good in strength region designability, excellent in impact resistance, light in weight and the like.

The invention discloses a reinforced anti-crack diatom mud material containing PVA (polyvinyl alcohol) fiber and a preparation method of the material. The diatom mud material is prepared from components in percentage by mass as follows: 15%-35% of diatomite, 20%-40% of heavy calcium, 8%-20% of ash calcium, 8%-20% of quartz sand, 2%-5% of nano titania, 1%-4% of negative ion powder, 0.5%-2.5% of cellulose ether, 0.1%-0.5% of pregelatinized starch and 0.1%-2% of the PVA fiber. The diatom mud material prepared with the method has the functions of regulating humidity, insulating sounds, reducing noise, preventing fire, retarding flame, purifying air, contributing to health and the like.

The invention discloses a composite energy-saving roller blind door/window. The composite energy-saving roller blind door/window comprises an aluminum alloy door/window, an aluminum alloy roller blind window and a screen window, and is integrally designed; covers of the aluminum alloy door/window and the roller blind window both can prevent heat transfer through adoption of an insulation bridge cutoff technology so as to keep the indoor temperature to achieve an energy-saving effect. In addition, the roller blind window is mounted outside glass of the aluminum alloy door/window for adjusting the indoor lighting. When the screen window is opened, mosquitoes are prevented from entering inside. Roller blinds of the roller blind window are once formed by aluminum alloy blades with high heat reflectivity, are simple in shape, and can be randomly selected according to hobbies and colors of buildings; and a polyurethane insulation foam material is filled in the middle of a sectional material for effectively preventing the strong light irradiation and the ultraviolet radiation. The composite energy-saving roller blind door/window has such functions as sun protection, heat insulation, sound insulation, noise reduction, lighting, ventilation, theft prevention and mosquito prevention, and has the advantages of simple structure and convenience for mounting and use. The on-site installation difficulty is reduced, and the coordination problem between a window body and the sun protection is solved.

The invention belongs to the technical field of motors, and particularly relates to a permanent magnet brushless direct current motor. The permanent magnet brushless direct current motor comprises a motor shell, wherein a rotor assembly is arranged in the motor shell and arranged outside a rotating shaft in a sleeving mode to drive the rotating shaft to rotate around the axis of the rotating shaft; a sliding groove cavity is formed in the lower end face of the motor shell, and mounting plates are arranged on the two sides of the sliding cavity; a T-shaped sliding groove is formed in the bottomend face of the mounting plate, and a plurality of connecting holes are formed in the mounting plate; a fixed base is slidably inserted into the sliding cavity, and the upper end faces of the two sides of the fixed base make sliding contact with the lower surface of the mounting plate; I-shaped sliding strips are arranged on the upper end faces of the two sides of the fixed base, and the upper ends of the I-shaped sliding strips are inserted into the T-shaped sliding groove in a sliding mode; a damping cavity is formed in the fixed base, and a damping spring is arranged in the damping cavityin the vertical direction; an elastic buffer column is inserted into the damping spring; the fixed base is made of a closed-cell foamed aluminum material; and the damping spring arranged in the fixedbase can play a role in buffering and damping the brushless direct current motor.