A method for manufacturing a filter assembly composed of glass fiber reinforced phenolic resin and metal

Abstract

A method for manufacturing a filter disc assembly composed of glass fiber reinforced phenolic resin and metal can realize the one-piece molding of the filter disc assembly through a mold consisting of an upper mold, a core, a lower mold and a sleeve, thereby effectively solving the problems of irregular filter shape, low strength, poor bonding between metal and non-metal parts, and low production efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of polymer materials, and in particular to a method for manufacturing a filter disc component composed of glass fiber reinforced phenolic resin and metal. Background Art

[0002] As is known to all, a filter disc is a device that can separate solid particles suspended in liquid or gas. A filter disc assembly product can be assembled by stacking 20 filter disc assemblies and metal gaskets. Furthermore, the filter disc is generally made of glass fiber reinforced phenolic resin as a raw material, so that the filter disc assembly product can use the non-conductive properties of glass fiber reinforced phenolic resin to filter metal particles in the liquid. The principle is that once metal particles pass through the filter disc assembly, the metal part will become conductive, thereby sounding an alarm.

[0003] Traditional filter discs are imported parts. Their processing method is as follows: 1. dripping resin material onto the surface of a metal gasket; 2. after the material cools and solidifies, stacking the filter disc and the metal gasket to form a filter disc assembly. However, the filter disc assembly manufactured by this method is prone to defects such as irregular shape of the finished product, low strength, poor bonding ability between the metal and non-metal parts, and low production efficiency.

[0004] Chinese patent (CN213912831U) discloses a new type of high-efficiency back-blowing air filter element, which achieves high efficiency and low resistance by folding the glass fiber filter material to achieve a large filtration area, high filtration efficiency, and low initial resistance. In addition, the protection of the stainless steel punching plate and the support of the metal mesh play a role in protecting the glass fiber filter material, increasing the positive and reverse pressure bearing capacity of the glass fiber filter material, ensuring that the glass fiber filter material can withstand the back-blowing pressure, meeting the regeneration performance of the glass fiber filter material, and extending the service life of the glass fiber filter material; However, this filter element still cannot solve the shortcomings that appear after the filter assembly is assembled;

[0005] Therefore, in summary, the market currently needs a method for producing filter components that are regular, high in strength, and have strong bonding capabilities between metal and non-metal parts. Summary of the Invention

[0006] In order to overcome the deficiencies in the background technology, the present invention discloses a method for manufacturing a filter assembly composed of glass fiber reinforced phenolic resin and metal.

[0007] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions:

[0008] A method for manufacturing a filter assembly composed of glass fiber reinforced phenolic resin and metal,

[0009] 1) Apply adhesive to the surface of the metal part and then place it in an oven for 14-16 minutes. At the same time, cut the glass fiber reinforced phenolic resin into 5mm wide pieces;

[0010] 2) Preheating the various components of the mold;

[0011] 3) The core and the lower die are inserted and matched through the shaft hole structure, and the top surface of the lower die is used as the positioning surface for positioning the metal part;

[0012] 4) Place the metal part on the top surface of the lower mold, then place the sleeve on the outside of the lower mold, and then place multiple pieces of glass fiber reinforced phenolic resin chips on the top surface of the metal part;

[0013] 5) Finally, the upper mold is inserted into the sleeve to complete the assembly of the mold. The bottom surface of the upper mold is provided with multiple annular sector-shaped protrusions. The upper mold and the lower mold can clamp and fix the metal parts;

[0014] 6) Place the assembled mold in a flat vulcanizer for high temperature and high pressure thermal curing;

[0015] 7) After molding, place the entire mold on a large demolding barrel. Then, use a demolding rod to apply downward pressure on the vulcanizer to eject the upper mold, core, and lower mold from the sleeve. Next, separate the upper mold, lower mold, and core. Then, place the lower mold in a small demolding barrel. Use a demolding rod to apply downward pressure to displace the core, thereby removing the filter assembly from the mold.

[0016] Preferably, the number of the protrusions is set to 7-8, and the multiple protrusions are uniformly arranged in a circle with the corresponding center of the bottom surface of the upper mold as the center of the circle.

[0017] Preferably, the adhesive is JQ-1.

[0018] Preferably, the top of the core is higher than the top surface of the lower mold, and the top of the core is set to be truncated cone-shaped, and the middle through hole of the upper mold can correspond to the top of the core.

[0019] Preferably, the inner side surfaces of the openings at both ends of the through hole in the middle of the sleeve are set as inclined surfaces.

[0020] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects:

[0021] The present invention discloses a method for manufacturing a filter disc assembly composed of a glass fiber reinforced phenolic resin and a metal. The method can realize the one-piece molding of the filter disc assembly through a mold consisting of an upper mold, a core, a lower mold and a sleeve, thereby effectively solving the problems of irregular filter shape, low strength, poor bonding between metal and non-metal parts, and low production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A structural schematic diagram of the present invention;

[0023] Figure 2 Schematic diagram of the filter assembly structure.

[0024] In the figure: 1. Upper mold; 2. Core; 3. Lower mold; 4. Sleeve; 5. Large unloading cylinder; 6. Small unloading cylinder; 7. Metal parts; 8. Glass fiber reinforced phenolic resin filter. DETAILED DESCRIPTION

[0025] The technical solutions of the present invention will be described below with reference to the accompanying drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "rear", "left", "right" and the like indicating directions or positional relationships, these are merely for the purpose of corresponding to the drawings of the present invention and for the convenience of describing the present invention. They do not indicate or imply that the devices or components referred to must have a specific direction.

[0026] Combined with attachment Figure 1-2 The method for manufacturing a filter disc assembly composed of glass fiber reinforced phenolic resin and metal,

[0027] 1) Applying adhesive to the surface of the metal part (8), and then placing it in an oven for 14-16 minutes, while cutting the glass fiber reinforced phenolic resin into 5 mm wide pieces;

[0028] The adhesive is JQ-1, i.e., polyisocyanate adhesive, which is easily polymerized under high temperature, thereby making the filter and the metal part (8) more firmly bonded. In addition, the optimal baking time is 15 minutes.

[0029] 2) Preheating the various components of the mold;

[0030] 3) The core (2) and the lower mold (3) are inserted and matched through the shaft hole structure, and the top surface of the lower mold (3) is used as a positioning surface for positioning the metal part (8);

[0031] 4) placing the metal part (8) on the top surface of the lower mold (3), then sleeve (4) on the outside of the lower mold (3), and then placing multiple pieces of glass fiber reinforced phenolic resin fragments on the top surface of the metal part (8);

[0032] According to needs, the top of the core (2) is higher than the top surface of the lower mold (3), and the top of the core (2) is set to be truncated cone-shaped. The middle through hole of the upper mold (1) can be matched with the top of the core (2). The top of the core (2) can be used to guide when placing glass fiber reinforced phenolic resin fragments, making it easier for the fragments to slide down, and can also increase the contact area when matching with the upper mold (1), making the connection between the two more firm and improving the effect of subsequent high-temperature and high-pressure thermal curing;

[0033] 5) Finally, the upper mold (1) is inserted into the sleeve (4) to complete the assembly of the mold, and the bottom surface of the upper mold (1) is provided with a plurality of annular sector-shaped protrusions, and the upper mold (1) and the lower mold (3) can clamp and fix the metal part (8). In this way, in the molded filter assembly, the shape of the glass fiber reinforced phenolic resin filter (7) is an annular sector;

[0034] In addition, the number of the protrusions is set to 7-8, and the multiple protrusions are uniformly arranged in a circle with the corresponding center of the bottom surface of the upper mold (1) as the center of the circle, wherein the optimal number of the protrusions is 8;

[0035] According to the needs, the inner side surfaces of the openings at both ends of the through hole in the middle of the sleeve (4) are set as inclined surfaces, and the inclined surfaces can facilitate the subsequent demoulding of the lower mold (3);

[0036] 6) placing the assembled mold in a flat vulcanizer for high-temperature and high-pressure thermal curing, and using high-temperature and high-pressure thermal curing to form a filter assembly consisting of a glass fiber reinforced phenolic resin filter (7) and a metal part (8);

[0037] 7) After the molding is completed, the entire mold is placed on the large demolding cylinder (5), and then the demolding rod is used to push the upper mold (1), the core (2) and the lower mold (3) out of the sleeve (4) together through the downward pressure of the vulcanizer. Next, the upper mold (1) and the lower mold (3) are separated from the core (2), and then the lower mold (3) is placed in the small demolding cylinder (6). The demolding rod is used to move the core (2) through downward pressure, thereby removing the filter assembly from the mold.

[0038] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the appended claims rather than the above description. Therefore, it is intended that all changes that fall within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure marks in the claims should not be regarded as limiting the claims involved.

Claims

1. A method for manufacturing a filter disc assembly composed of glass fiber reinforced phenolic resin and metal, characterized by: 1) Applying adhesive to the surface of the metal part (8), and then placing it in an oven for 14-16 minutes, while cutting the glass fiber reinforced phenolic resin into 5 mm wide pieces; 2) Preheating the various components of the mold; 3) The core (2) and the lower mold (3) are inserted and matched through the shaft hole structure, and the top surface of the lower mold (3) is used as a positioning surface for positioning the metal part (8); 4) placing the metal part (8) on the top surface of the lower mold (3), then sleeve (4) on the outside of the lower mold (3), and then placing multiple pieces of glass fiber reinforced phenolic resin fragments on the top surface of the metal part (8); 5) Finally, the upper mold (1) is inserted into the sleeve (4) to complete the assembly of the mold, and the bottom surface of the upper mold (1) is provided with a plurality of annular sector-shaped protrusions, and the upper mold (1) and the lower mold (3) can clamp and fix the metal part (8); 6) Place the assembled mold in a flat vulcanizer for high temperature and high pressure thermal curing; 7) After the molding is completed, the entire mold is placed on the large demolding cylinder (5), and then the demolding rod is used to push the upper mold (1), the core (2) and the lower mold (3) out of the sleeve (4) together through the downward pressure of the vulcanizer. Next, the upper mold (1) and the lower mold (3) are separated from the core (2), and then the lower mold (3) is placed in the small demolding cylinder (6). The demolding rod is used to move the core (2) through downward pressure, thereby removing the filter assembly from the mold.

2. The method for manufacturing a filter disc assembly of a glass fiber reinforced phenolic resin and metal combination as claimed in claim 1, characterized in that: The number of the protrusions is set to 7-8, and the multiple protrusions are uniformly arranged in a circle with the corresponding center of the bottom surface of the upper mold (1) as the center of the circle.

3. The method for manufacturing a filter disc assembly of a glass fiber reinforced phenolic resin and metal combination as claimed in claim 1, characterized in that: The adhesive is set as JQ-1.

4. The method for manufacturing a filter disc assembly of a glass fiber reinforced phenolic resin and metal combination as claimed in claim 1, characterized in that: The top of the core (2) is higher than the top surface of the lower mold (3), and the top of the core (2) is set to be a truncated cone. The middle through hole of the upper mold (1) can correspond to the top of the core (2).

5. The method for manufacturing a filter disc assembly of a glass fiber reinforced phenolic resin and metal combination as claimed in claim 1, characterized in that: The inner side surfaces of the openings at both ends of the through hole in the middle of the sleeve (4) are configured as inclined surfaces.

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