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Low-temperature oxidation coloring treatment process method for workpiece on surface of clutch driven plate

A processing technology and clutch technology, applied in metal material coating technology, coating, solid diffusion coating and other directions, can solve the problem of chemical residual liquid pollution and other problems

Inactive Publication Date: 2013-04-10
广东亚新汽车传动有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a low-temperature oxidation and coloring treatment process applied to the surface of the clutch driven disc. Through the low-temperature oxidation and coloring treatment technology on the surface of the workpiece, the surface of the workpiece can be provided with an oxidation protective film to achieve the appearance color. The ability to control and surface rust prevention fundamentally solves the pollution problem caused by the chemical residual liquid caused by pickling and surface phosphating of the workpiece, which meets the requirements of environmental protection

Method used

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  • Low-temperature oxidation coloring treatment process method for workpiece on surface of clutch driven plate
  • Low-temperature oxidation coloring treatment process method for workpiece on surface of clutch driven plate
  • Low-temperature oxidation coloring treatment process method for workpiece on surface of clutch driven plate

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Embodiment

[0045] 1. C-N co-infiltration and quenching.

[0046] 2. Cleaning; the workpiece is cleaned by a washing machine.

[0047] 3. Degreasing; add an appropriate amount of alkaline cleaning agent (model: HJ-921A, main purpose: removal of oil stains on metal surfaces), heating temperature 70°C-80°C, degreasing time 5-10 minutes (determined according to the amount of oil stains on the workpiece surface) ), the range of PH value 8-10.

[0048] 4. Polishing:

[0049] (1) The workpiece needs to be polished to remove surface black spots and oxide scales to make the surface bright;

[0050] (2) Quality control: After the surface is polished, it should be uniform and bright, and no oil stains are allowed.

[0051] After the surface is polished, the coloring process is specifically as follows: in a relatively low temperature environment of the mesh belt furnace (the relative carbonitriding temperature is controlled above 700 ° C), by controlling different time and temperature, oxidation ...

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Abstract

The invention discloses a low-temperature oxidation coloring treatment process method for a workpiece on the surface of a clutch driven plate. The method comprises the following steps of: a, performing carbonitriding and quenching treatment on a stamping part (workpiece for short) on the surface of the clutch driven plate; b, cleaning the workpiece in a cleaning machine, removing oil dirt and impurities from the surface of the workpiece by using metal cleaning fluid, spraying clean water to the workpiece, and drying the workpiece; c, performing surface polishing on the workpiece to remove superficial black spots; and d, after the surface polishing, performing coloring treatment on the workpiece. Through a low-temperature oxidation coloring treatment technology for the surface of the workpiece, a layer of oxidization protection film is formed on the surface of the workpiece to ensure that the appearance color can be controlled and the surface of the workpiece is rust-proof, so that the problem of pollution caused by chemical residual liquid during acid pickling and surface phosphorization of the workpiece is fundamentally solved, and the low-temperature oxidation coloring treatment process method meets requirements for environmental protection.

Description

technical field [0001] The invention relates to a workpiece surface treatment process, in particular to a low-temperature oxidation coloring process applied to the surface of a clutch driven disc. Background technique [0002] By changing the chemical composition of the surface layer of the material, a single-phase or multi-phase diffusion layer and a compound layer are formed to improve the surface strength, hardness or change the performance. It is called metal surface heat treatment strengthening method. The commonly used methods are carburizing and carburizing Nitrogen etc. [0003] When the clutch is in working condition, the steel sheets of its main parts, such as the driven plate and the damping plate, will produce impacts, and its parts are required to have high surface wear resistance. At present, domestic manufacturers generally choose low-carbon steel with good stamping effect to stamp, and then carry out carbonitriding to improve surface hardness and wear resist...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C8/02C23C8/80C23C8/10C23C8/30
Inventor 段德运
Owner 广东亚新汽车传动有限公司
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