Preparation method of high-efficiency and environment-friendly PCB polishing wheel

Abstract

The present application relates to a kind of efficient environmental protection type PCB circuit board polishing wheel preparation method.The method is by using water-based environmental protection adhesive and natural fiber cloth, significantly improve the environmental protection of polishing wheel, wear resistance and service life.Specific steps include: selecting stainless steel or aluminum alloy as base material, coating water-based environmental protection adhesive on its outer surface, the adhesive is mixed by natural resin, inorganic reinforcing filler and water-based solvent according to specific proportion;Then, the natural fiber cloth that is finely treated is evenly laid on adhesive layer;Then, after pressing and curing treatment, finally form polishing wheel, and carry out surface smooth processing to improve polishing effect.The beneficial effects of the present application are: reduce environmental pollution, improve the adhesion, wear resistance and flexibility of polishing wheel, significantly improve the surface quality of PCB circuit board.In addition, the process is simple, low in cost, suitable for large-scale industrial production, meet the requirements of green production.

Description

Technical Field

[0001] This invention relates to a method for preparing a PCB polishing wheel, and more particularly to a method for preparing a high-efficiency and environmentally friendly PCB polishing wheel. This method uses environmentally friendly adhesives and natural fiber fabrics, and is suitable for the high-efficiency polishing of PCBs. Background Technology

[0002] With the increasing prevalence of electronic devices, PCBs (Printed Circuit Boards) are being used more and more widely in electronic products. During the production process, PCBs require polishing to remove surface oxides and uneven areas, ensuring surface smoothness and reliability. However, existing polishing wheels mostly use traditional chemical adhesives and synthetic fabrics, which not only leads to environmental pollution during production but may also affect the lifespan and polishing effect of the polishing wheels. Therefore, developing an environmentally friendly and efficient method for manufacturing polishing wheels is of great significance. Summary of the Invention

[0003] This invention provides a method for preparing a high-efficiency and environmentally friendly PCB polishing wheel. By using water-based environmentally friendly adhesives and natural fiber fabrics, it overcomes the shortcomings of traditional polishing wheels in terms of environmental protection, performance and service life, improves polishing efficiency and reduces environmental pollution.

[0004] To achieve the above objectives, the technical solution of the present invention is as follows:

[0005] 1. A method for preparing a high-efficiency and environmentally friendly PCB polishing wheel, comprising the following steps:

[0006] a. Select a wear-resistant metal matrix material as the core of the polishing wheel, wherein the metal matrix material is stainless steel or aluminum alloy;

[0007] b. Coating the outer surface of the metal substrate with a layer of water-based environmentally friendly adhesive, wherein the water-based adhesive is composed of natural resin, inorganic reinforcing filler and water-based solvent mixed in a specific ratio, wherein the mass ratio of the natural resin is 10:3-5:2-3;

[0008] c. Evenly lay the finely processed natural fiber fabric onto the adhesive layer, ensuring that the fabric surface is in complete contact with the adhesive layer;

[0009] d. Press and cure the above-mentioned fabric and adhesive layer to form a polishing wheel. The curing temperature is 80-100℃ and the curing time is 2-4 hours.

[0010] e. Perform surface smoothing treatment on the cured polishing wheel to remove surface impurities and ensure polishing effect.

[0011] 2. The natural resin in the water-based environmentally friendly adhesive is soybean gum or rosin resin.

[0012] 3. The inorganic reinforcing filler in the water-based environmentally friendly adhesive is dolomite powder or quartz sand.

[0013] 4. The natural fiber fabric is specially treated linen or cotton fabric with a thickness of 0.5-1mm.

[0014] 5. The curing temperature is 90℃ and the curing time is 3 hours.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. By using water-based environmentally friendly adhesives and natural fiber fabrics, this invention provides a more environmentally friendly method for manufacturing polishing wheels, avoiding environmental pollution caused by traditional chemical solvents and meeting the requirements of green production.

[0017] 2. Using natural resin as the main component of the adhesive improves the adhesion and durability of the polishing wheel, extending its service life.

[0018] 3. The inorganic reinforcing fillers used in this method, such as dolomite powder or quartz sand, can effectively improve the wear resistance of the polishing wheel and enhance its stability in long-term use.

[0019] 4. Using natural fiber fabrics not only reduces reliance on synthetic fibers, but also improves the flexibility and polishing effect of the polishing wheel, thereby enhancing the surface quality of the PCB circuit board.

[0020] 5. The method of the present invention is simple, low-cost, and has significant environmental performance in the preparation process, making it suitable for large-scale industrial production. Detailed Implementation

[0021] The specific implementation of the present invention will be further described below with reference to the embodiments.

[0022] The technical solution of the present invention is as follows:

[0023] 1. A method for preparing a high-efficiency and environmentally friendly PCB polishing wheel, comprising the following steps:

[0024] a. Select a wear-resistant metal matrix material as the core of the polishing wheel. The metal matrix material can be stainless steel or aluminum alloy.

[0025] b. Coat the outer surface of the metal substrate with a layer of water-based environmentally friendly adhesive. The water-based adhesive is made of natural resin, inorganic reinforcing filler and water-based solvent mixed in a specific ratio. The mass ratio of natural resin is 10:3-5:2-3.

[0026] c. Evenly lay the finely processed natural fiber fabric onto the adhesive layer, ensuring that the fabric surface is in complete contact with the adhesive layer;

[0027] d. Press and cure the above-mentioned fabric and adhesive layer to form a polishing wheel. The curing temperature is 80-100℃ and the curing time is 2-4 hours.

[0028] e. Perform surface smoothing treatment on the cured polishing wheel to remove surface impurities and ensure polishing effect.

[0029] 2. The natural resin in water-based environmentally friendly adhesives is soybean glue or rosin resin.

[0030] 3. The inorganic reinforcing filler in the water-based environmentally friendly adhesive is dolomite powder or quartz sand.

[0031] 4. Natural fiber fabrics are specially treated linen or cotton fabrics with a thickness of 0.5-1mm.

[0032] 5. The curing temperature is 90℃ and the curing time is 3 hours.

[0033] Example 1:

[0034] Stainless steel was chosen as the base material for the polishing wheel, with a diameter of 100mm and a thickness of 10mm. A water-based environmentally friendly adhesive, composed of rosin resin, soybean glue, and quartz sand in a mass ratio of 10:4:3, was then uniformly coated onto the outer surface of the stainless steel base. Next, a treated cotton cloth (0.8mm thick) was laid on the adhesive layer, ensuring complete contact between the cloth and the adhesive. This composite was then pressed and cured at 90℃ for 3 hours. After curing, the surface of the polishing wheel was smoothed to remove impurities, resulting in the final polishing wheel.

[0035] Experimental results show that the polishing wheel exhibits good wear resistance and stability during use, and has significant advantages in terms of environmental protection.

[0036] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A method for preparing a high-efficiency and environmentally friendly PCB circuit board polishing wheel, characterized in that, Includes the following steps: a. Select a wear-resistant metal matrix material as the core of the polishing wheel, wherein the metal matrix material is stainless steel or aluminum alloy; b. Coat the outer surface of the metal substrate with a layer of water-based environmentally friendly adhesive. The water-based adhesive is made of natural resin, inorganic reinforcing filler and water-based solvent mixed in a specific ratio. The mass ratio of the natural resin is 10:3-5:2-3. c. Evenly lay the finely processed natural fiber fabric on the adhesive layer, ensuring that the fabric surface is in complete contact with the adhesive layer; d. Press and cure the above-mentioned fabric and adhesive layer to form a polishing wheel. The curing temperature is 80-100℃ and the curing time is 2-4 hours. e. Perform surface smoothing treatment on the cured polishing wheel to remove surface impurities and ensure polishing effect.

2. The method for preparing the high-efficiency and environmentally friendly PCB circuit board polishing wheel according to claim 1, characterized in that: The natural resin in the water-based environmentally friendly adhesive is soybean gum or rosin resin.

3. The method for preparing the high-efficiency and environmentally friendly PCB circuit board polishing wheel according to claim 2, characterized in that: The inorganic reinforcing filler in the water-based environmentally friendly adhesive is dolomite powder or quartz sand.

4. The method for preparing the high-efficiency and environmentally friendly PCB circuit board polishing wheel according to claim 3, characterized in that: The natural fiber fabric is specially treated linen or cotton fabric with a thickness of 0.5-1mm.

5. The method for preparing the high-efficiency and environmentally friendly PCB circuit board polishing wheel according to claim 4, characterized in that: The curing temperature is 90℃ and the curing time is 3 hours.