Method for short-term anti-corrosion treatment of automobile brake disc

A technology of automobile braking and anti-corrosion treatment, which is applied in the direction of pre-treatment surface, coating, and the device for coating liquid on the surface. Manufacturing cost, the effect of avoiding repair and derusting

Inactive Publication Date: 2017-06-13
CHONGQING CHANGAN AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Automobile brake discs are generally only coated with anti-corrosion coatings on the large and small round facades, because the brake friction surface and rim mounting surface of automobile brake discs are not sprayed with anti-corrosion coatings, and the cast iron substrate is directly exposed to the air. , the brake friction surface and rim mounting surface are prone to rust during the transportation and storage period. At present, water-based anti-rust oil is often used to prevent corrosion of the brake friction surface and rim mounting surface during the storage period, but the application of anti-rust oil will Increase the cost of parts, and the uniformity of coating is poor, and the anti-corrosion effect is not good

Method used

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  • Method for short-term anti-corrosion treatment of automobile brake disc

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: a short-term anti-corrosion treatment method for automobile brake discs, comprising the steps of:

[0016] 1) Degrease and clean the brake disc of the car;

[0017] 2) Preheat the car brake disc in step 1) at 200°C for 30 seconds;

[0018] 3) Spray the large circle façade 3 of the automobile brake disc and the small circle façade 1 of the automobile brake disc in step 2) with Dacromet paint, the friction surface 2 of the automobile brake disc and the mating surface 4 of the automobile brake disc and the rim No spraying, then pre-bake at 180°C for 5 minutes;

[0019] 4) The automobile brake disc in step 3) was sintered and solidified at 390°C for 30 minutes, and then cooled naturally.

Embodiment 2

[0020] Embodiment 2: a short-term anti-corrosion treatment method for automobile brake discs, comprising the following steps:

[0021] 1) Degrease and clean the brake disc of the car;

[0022] 2) Preheat the brake disc of the car in step 1) at 180°C for 50 seconds;

[0023] 3) Spray the large circle façade 3 of the automobile brake disc and the small circle façade 1 of the automobile brake disc in step 2) with Dacromet paint, the friction surface 2 of the automobile brake disc and the mating surface 4 of the automobile brake disc and the rim No spraying, then pre-bake at 200°C for 8 minutes;

[0024] 4) The automobile brake disc in step 3) was sintered and solidified at 400°C for 35 minutes, and then cooled naturally.

Embodiment 3

[0025] Embodiment 3: a short-term anti-corrosion treatment method for automobile brake discs, comprising the following steps:

[0026] 1) Degrease and clean the brake disc of the car;

[0027] 2) Preheat the brake disc of the car in step 1) at 180°C for 40 seconds;

[0028] 3) Spray the large circle façade 3 of the automobile brake disc and the small circle façade 1 of the automobile brake disc in step 2) with Dacromet paint, the friction surface 2 of the automobile brake disc and the mating surface 4 of the automobile brake disc and the rim No spraying, then pre-bake at 190°C for 6 minutes;

[0029] 4) The automobile brake disc in step 3) was sintered and solidified at 390°C for 32 minutes, and then cooled naturally.

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Abstract

The invention relates to a method for short-term anti-corrosion treatment of an automobile brake disc. The method comprises the following steps that (1) degreasing and cleaning are carried out on the automobile brake disc; (2) the automobile brake disc is preheated for 30-50 seconds at the temperature of 180-200 DEG C; (3) the large round vertical plane of the automobile brake disc and the small round vertical plane of the automobile brake disc are coated with Dacromet paint and baked for 5-8 minutes at the temperature of 180-200 DEG C; and (4) the automobile brake disc is baked for 30-35 minutes at the temperature of 380-400 DEG C and then cooled in air. As for the automobile brake disc treated by the method, the situation that within the transportation and storage period of 30-90 days, the braking friction surface and the rim mounting surface of the automobile brake disc rust as being not coated with coatings can be prevented, the corrosion resistance of the brake disc in the transportation and storage process is ensured, and the corrosion resistance protection cost of the brake disc is reduced.

Description

technical field [0001] The invention relates to the field of metal anticorrosion protection, in particular to a short-term anticorrosion treatment method for automobile brake discs. Background technique [0002] Automobile brake discs are generally only coated with anti-corrosion coatings on the large and small round facades, because the brake friction surface and rim mounting surface of automobile brake discs are not sprayed with anti-corrosion coatings, and the cast iron substrate is directly exposed to the air. , the brake friction surface and rim mounting surface are prone to rust during the transportation and storage period. At present, water-based anti-rust oil is often used to prevent corrosion of the brake friction surface and rim mounting surface during the storage period, but the application of anti-rust oil will Increase the cost of parts, and the coating uniformity is poor, and the anti-corrosion effect is not good. Contents of the invention [0003] The purpo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D5/00B05D7/24B05D3/02B05D3/04
CPCB05D3/0254B05D3/046B05D5/00B05D7/24
Inventor 张德跃陈勇王春良
Owner CHONGQING CHANGAN AUTOMOBILE CO LTD
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