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Surface electroplating process based on copper-based sintered brake pad manufacturing

An electroplating process and brake pad technology, applied in the field of brake pad manufacturing, can solve the problems of large surface roughness of the coating layer and affect the quality of the product leaving the factory, and achieve the effect of improving the quality of the factory and reducing the roughness.

Inactive Publication Date: 2021-08-24
ANHUI XIANGCHI VEHICLE IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] After the traditional electroplating operation of copper-based sintered brake pads, the surface roughness of the coating on the surface of the workpiece is relatively large, which affects the quality of the product when it leaves the factory. For this reason, we propose a surface electroplating process based on copper-based sintered brake pads.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A surface electroplating process based on copper-based sintered brake pads, comprising the following steps:

[0023] S1. Derusting treatment on the surface of the workpiece. First, use 800-mesh sandpaper to polish the surface of the copper-based sintered brake pad to destroy the outer oxide film of the workpiece. Then put the polished copper-based sintered brake pad into the rust-removing solution, heat and soak for 1 -2h, then it will be taken out;

[0024] S2. Put the copper-based sintered brake pad after acid leaching in step 1 into clean water and rinse it repeatedly for 2-3 times, then take it out and dry it;

[0025] S3. Add buffer, pH regulator and electroplating brightener in sequence in the plating tank filled with electroplating solution, and mix and stir;

[0026] S4. Use the copper-based sintered brake pad to be electroplated in step 2 as a cathode, and set a vibration source at the bottom of the cathode, and arrange a plurality of nickel plate anodes in pa...

Embodiment 2

[0032] A surface electroplating process based on copper-based sintered brake pads, comprising the following steps:

[0033] S1. Derusting treatment on the surface of the workpiece. First, use 800-mesh sandpaper to polish the surface of the copper-based sintered brake pad to destroy the outer oxide film of the workpiece. Then put the polished copper-based sintered brake pad into the rust-removing solution, heat and soak for 1 -2h, then it will be taken out;

[0034] S2. Put the copper-based sintered brake pad after acid leaching in step 1 into clean water and rinse it repeatedly for 2-3 times, then take it out and dry it;

[0035] S3. Add buffer, pH regulator and electroplating brightener in sequence in the plating tank filled with electroplating solution, and mix and stir;

[0036] S4. Use the copper-based sintered brake pad to be electroplated after processing in step 2 as a cathode, and set a vibration source at the bottom of the cathode, and arrange a nickel plate anode si...

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Abstract

The invention discloses a surface electroplating process based on copper-based sintered brake pad manufacturing, relates to the field of brake pad manufacturing, and aims at solving the problems that after electroplating of a copper-based sintered brake pad is completed, the surface of a plating layer is rough, and the outgoing quality of a product is affected. According to the technical scheme, the process comprises the following steps that, S1, workpiece surface rust removal treatment is carried out, the surface of the copper-based sintered brake pad is polished through 800-mesh abrasive paper, and an oxidation film on the outer layer of a workpiece is damaged. According to the processs, a plurality of anodes are arranged side by side, and different electroplating loops are opened regularly, so that nickel ions on an anode nickel plate are automatically electrolyzed into a solution, the nickel ions are supplemented to the cathode copper-based sintered brake pad in time, and the situation that the content of the nickel ions is reduced in the later period of electroplating and even covering of a plating layer is affected is avoided; and the nickel ions in electrolyte are uniformly adsorbed to the surface of the copper-based sintered brake pad, so that the roughness of a coating on the surface of the workpiece is reduced, and the outgoing quality of a product is improved.

Description

technical field [0001] The invention relates to the field of brake pad manufacturing, in particular to a surface electroplating process based on copper-based sintered brake pad manufacturing. Background technique [0002] Brake pads are also called brake pads. In the braking system of a car, brake pads are the most critical safety parts. The brake pads play a decisive role in the quality of all braking effects. Brake pads are generally composed of steel plates, adhesive insulation layers and friction blocks. The steel plates must be painted to prevent rust. During the painting process, SMT-4 furnace temperature tracker is used to detect the temperature distribution during the painting process to ensure the quality. The heat insulation layer is composed of materials that do not conduct heat, and the purpose is heat insulation. The friction block is composed of friction material and adhesive, which is squeezed on the brake disc or brake drum to generate friction during brakin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25D3/12C25D7/00C25D5/34C25D17/10C25D21/00C25D5/00
CPCC25D3/12C25D5/20C25D5/34C25D7/00C25D17/10C25D21/00
Inventor 赵冰清
Owner ANHUI XIANGCHI VEHICLE IND CO LTD
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