Bonding technique of phenolic plastic powder with metal inserts in forming process

A technology of phenolic plastic powder and metal inserts, which is used in devices for coating liquid on the surface, halogen rubber derivative adhesives, pretreatment surfaces, etc., which can solve the problem of inconsistent color, thickness of adhesive layer, and inability to meet product use. requirements and other issues to achieve the effect of ensuring product quality and bonding strength

Inactive Publication Date: 2010-05-19
陕西秦航机电有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ordinary adhesives generally have high viscosity and are not easy to operate. The adhesive layer has a thickness after coating, and it belongs to the overall curing, that is, it can be cured under certain temperature and time conditions. When plastic pressing, the raw materials flow under the action of heat and pressure. Impact the applied glue to mix the glue into the resin, resulting in inconsistency of color on the surface of the parts due to the mixing of glue, which reduces the appearance quality. Adhesiv

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1 Automotive resin synchronous ring:

[0023] The phenolic plastic powder is phenolic resin powder QHPF2 reinforced by short glass fibers. The product structure is: a layer of phenolic resin powder QHPF2 is coated on the outer circle of the metal substrate as a friction material, and the pressing mold is a die-casting structure.

[0024] The formula of the glue is: imported Chemlok 6071 parts by weight, coupling agent γ-aminopropyltriethoxysilane KH-5501 parts by weight, and methanol 5 parts by weight.

[0025] Adhesive molding process:

[0026] Step 1: Sand blast the bonded metal surface, and the sand blasting surface requires 100%; then wash and dry with gasoline and apply the first glue, and bake in an oven at 150°C±5°C for 30±5 minutes Take it out; the metal parts after blasting must be used within 24 hours;

[0027] Step 2: Apply the glue solution for the second time, and let it dry at room temperature for 30 minutes;

[0028] Step 3: Put the metal in...

Embodiment 2

[0029] Embodiment 2 Automobile carburetor pad:

[0030] The phenolic plastic powder is modified phenolic resin powder PF2A4-161. The product structure is: a layer of phenolic resin powder PF2A4-161 is coated on the outer circle of the metal substrate as a friction material, and the pressing mold is a direct pressure structure.

[0031] The formula of the glue is: imported Chemlok 6071 parts by weight, coupling agent γ-aminopropyltriethoxysilane KH-5501 parts by weight, and methanol 5 parts by weight.

[0032] Step 1: Sand blast the bonded metal surface, then clean it with gasoline, apply the glue for the first time, bake it in an oven at 150°C±5°C for 30±5 minutes, and then take it out;

[0033] Step 2: Apply the glue solution for the second time, and let it dry at room temperature for 30 minutes;

[0034] Step 3: Put the metal insert obtained in step 2 into the mold cavity, add phenolic plastic powder, and use a 170t hydraulic press to form it at a temperature of 160°C±5°C a...

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PUM

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Abstract

The invention relates to a bonding technique of phenolic plastic powder with metal inserts in the forming process, which is characterized by comprising the following steps: carrying out sand blasting on the bonded metal surface, washing with gasoline, coating glue liquor once, baking in a baking oven at 150+/-5 DEG C for 30+/-5 minutes, and taking out; coating the glue liquor twice, and air-cooling at room temperature for 30 minutes; and putting the metal insert obtained in step 2 in a die cavity, adding phenolic plastic powder, and forming by using a pressure forming technique, wherein the preheating temperature of the die is the same as that of the metal insert. The bonding technique of the phenolic plastic powder with metal inserts in the forming process can ensure that the plastics are firmly bonded with the metal; and in the forming process, the resin can react with an intermediate agent, and the intermediate agent can react with the metal, thereby finally forming the chemical bonds and ensuring the bonding strength and the product quality.

Description

technical field [0001] The invention relates to a bonding process between phenolic plastic powder and metal inserts during the molding process. The surface of the metal inserts is treated by sand blowing, and then adhesive is applied according to the operation process. Background technique [0002] The traditional bonding technology is the bonding of the surface of the plastic product and the metal surface. The bonding process is to treat the two bonding surfaces with chemical and mechanical methods, and then apply glue, pressurize, and heat when necessary, so that To achieve the purpose of bonding plastic to metal. [0003] And when the structure of the product does not allow such a processing method, it is necessary to find an adhesive that can be directly bonded during the molding process, so as to achieve bonding during the molding process. Ordinary adhesives generally have high viscosity and are not easy to operate. The adhesive layer has a thickness after coating, and...

Claims

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Application Information

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IPC IPC(8): B29C43/18B29C43/32C09J115/02B05D3/02B29K705/00B29K61/04
Inventor 白春华王耀训赵小葳赵红华薛树青张搏冯华
Owner 陕西秦航机电有限责任公司
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