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Automobile steel plate spring and preparation method thereof

A technology of automobile steel plate and steel plate, applied in the direction of springs/shock absorbers, leaf springs, mechanical equipment, etc., can solve the problems of easy wear of leaf spring pins, shorten the front and rear overhangs of automobiles, and other problems, and achieve strong anti-rust ability. , good comfort, simple process effect

Inactive Publication Date: 2016-01-27
刘楚玲
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although there are many researches and patents on automobile leaf springs, the products generally have high rigidity, poor comfort, and long longitudinal dimensions, which are not conducive to shortening the front and rear suspensions of automobiles, and the leaf spring pins at the connection with the frame are easy to wear Such shortcomings have not been effectively resolved and need to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A kind of automobile leaf spring, the parts by weight of each component of raw material are:

[0028] 50 parts of 60Si2Mn steel plate, 30 parts of 40CrNiMn steel plate, 0.1 part of graphite, 1 part of polymer wax, and 5 parts of molybdenum disulfide.

[0029] Its preparation method comprises the following steps:

[0030] A, blanking: the raw material is kept at 1050°C for 120min;

[0031] B. Drilling: automatic drilling by drilling equipment;

[0032] C. Roll ears;

[0033] D. Quenching: the temperature is 800°C, and the quenching medium is oil;

[0034] E. Tempering: heat preservation at 400°C for 130min;

[0035] F. Shot peening: the medium temperature is controlled at 280°C;

[0036] G. Assembling, pre-pressing and painting.

Embodiment 2

[0038] A kind of automobile leaf spring, the parts by weight of each component of raw material are:

[0039] 60 parts of 60Si2Mn steel plate, 40 parts of 40CrNiMn steel plate, 0.5 parts of graphite, 3 parts of polymer wax, and 10 parts of molybdenum disulfide.

[0040] Its preparation method comprises the following steps:

[0041] A. Cutting: Raw materials are kept at 1080°C for 130 minutes;

[0042] B. Drilling: automatic drilling by drilling equipment;

[0043] C. Roll ears;

[0044] D. Quenching: the temperature is 850°C, and the quenching medium is oil;

[0045] E. Tempering: heat preservation at 420°C for 150 minutes;

[0046] F. Shot peening: the medium temperature is controlled at 320°C;

[0047] G. Assembling, pre-pressing and painting.

Embodiment 3

[0049] A kind of automobile leaf spring, the parts by weight of each component of raw material are:

[0050] 5 parts of 60Si2Mn steel plate, 35 parts of 40CrNiMn steel plate, 0.3 part of graphite, 2 parts of polymer wax, and 8 parts of molybdenum disulfide.

[0051] Its preparation method comprises the following steps:

[0052] A. Blanking: raw materials are kept at 1060°C for 125min;

[0053] B. Drilling: automatic drilling by drilling equipment;

[0054] C. Roll ears;

[0055] D. Quenching: the temperature is 825°C, and the quenching medium is oil;

[0056] E. Tempering: heat preservation at 410°C for 140min;

[0057] F. Shot peening: the medium temperature is controlled at 300°C;

[0058] G. Assembling, pre-pressing and painting.

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Abstract

The invention relates to an automobile steel plate spring and a preparation method thereof, and belongs to the technical field of automobile part processing. The automobile steel plate spring is prepared from the following raw material components in parts by weight: 50-60 parts of 60Si2Mn, 30-40 parts of 40CrNiMn steel plates, 0.1-0.5 part of graphite, 1-3 parts of macromolecular wax and 5-10 parts of molybdenum disulfide. The preparation method for the automobile steel plate spring comprises the following steps: blanking, drilling, rolling, quenching, tempering, shot blasting, assembling, pre-pressing, spraying paint and the like. The steel plate spring is simple in structure, great in strength, abrasion-resistant and wear-resistant, high in rust prevention capability and good in comfort.

Description

technical field [0001] The invention relates to an automobile leaf spring and a preparation method thereof, belonging to the technical field of automobile parts processing. Background technique [0002] Since the "Automobile Industry Policy" was promulgated and implemented in 1994, China's automobile industry has made great progress, and the production scale of enterprises, automobile production and sales, product varieties, technical level, and market concentration have all made significant progress. In the 21st century, profound changes have taken place in the domestic and foreign environment. With the increasing domestic demand for automobiles, China's automobile industry has good opportunities for development. [0003] As the foundation of the automobile industry, auto parts are a necessary factor to support the sustainable and healthy development of the automobile industry. In particular, the current independent development and innovation in the auto industry, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/18C21D9/02
Inventor 刘楚玲
Owner 刘楚玲