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Automobile shock absorber and heat treatment process thereof

A heat treatment process and automobile shock absorber technology, which is applied in heat treatment furnaces, heat treatment equipment, springs/shock absorbers, etc., can solve the problems of danger in the driving process, high frequency of use, easy wear and fracture, etc.

Inactive Publication Date: 2014-10-01
NINGBO FENGHUA FEITIANREN PRECISION MOLD DESIGN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that some existing automobile shock absorbers and their heat treatment process are prone to wear and fracture due to their high frequency of use, resulting in dangerous problems during automobile driving

Method used

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  • Automobile shock absorber and heat treatment process thereof

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Embodiment Construction

[0007] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0008] As shown in the figure, the present invention includes a body 2 and a heat treatment process. The body 2 is set as a square spring structure, the top 1 of the body is set as a square closed structure, and the bottom 3 and the middle are set as a hollow structure 4. The entire body 2 is set as a conical structure with a large area at the bottom 3 and a small area at the top 1. The heat treatment process includes quenching and tempering at a medium temperature to obtain a tempered troostite structure. The selection of the quenching temperature in the process is both It is necessary to ensure full austenitization and maintain finer grains. Grain refinement can significantly improve the impact value of spring steel. In order to develop high-strength spring steel, carbonitrides of trace alloying elements are added to the steel. During the heat treatment pro...

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Abstract

The invention discloses an automobile shock absorber and a heat treatment process thereof. The automobile shock absorber comprises a body, wherein the body is of square spring type structure, the top of the body is of square close structure, the bottom and the middle of the body are of hollow structure, and the whole body is of taper structure large in bottom area and small in top area. The heat treatment process of the automobile shock absorber includes: performing quenching and medium temperature tempering; for developing spring steels high in strength, adding carbonitride of trace alloy elements into steels, using the carbonitride to refine austenite grains and simultaneously achieve precipitation strengthening effects; finally, performing annealing treatment. After the carbonitride of the trace alloy elements is added into the automobile shock absorber, the automobile shock absorber has a good elastic limit and a good yield ratio, and good toughness and good surface quality.

Description

technical field [0001] The invention relates to a mechanical product, in particular to an automobile shock absorber and its heat treatment process. Background technique [0002] Some automobile shock absorbers on the existing market are prone to wear and tear due to their high frequency of use, causing danger during driving. Contents of the invention [0003] The invention provides an automobile shock absorber and its heat treatment process. [0004] The purpose of the present invention is to solve the problem that some existing automobile shock absorbers and their heat treatment process are prone to wear and breakage due to high frequency of use, resulting in danger during automobile driving. [0005] The technical solution adopted by the present invention to solve the technical problem is: an automobile shock absorber and its heat treatment process, including the body and the heat treatment process, the body is set as a square spring structure, and the top of the body i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/02C21D9/00
Inventor 金方明
Owner NINGBO FENGHUA FEITIANREN PRECISION MOLD DESIGN CO LTD