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A kind of preparation method of high-performance shock-absorbing spring steel belt for automobile

A shock-absorbing spring, high-performance technology, applied in metal rolling and other directions, can solve the problems of increased steel strip loss, high production cost, long production cycle, etc., to reduce surface brush marks, avoid hardness increase, and not easy to break grain boundaries Effect

Active Publication Date: 2019-06-11
ANHUI CHUJIANG SPECIAL STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the car is driving on the uneven ground, the car will vibrate obviously, which is very prone to traffic accidents. At present, most cars achieve the maximum vibration effect by installing shock absorbing devices, and the shock absorbing devices are made of multi-layer It is made of spring steel strips. Therefore, the damping effect of the shock absorbing device is mainly determined by the performance of the spring steel strips. At present, the spring steel strips are complicated in process, long in production cycle and consume a lot of energy in the existing preparation process. Moreover, it is easy to cause waste products in the heat treatment process, increase the loss of the steel strip, the production efficiency is low and the production cost is high. The most important thing is that the produced spring steel strip cannot reach the expected shock absorption effect, and the service life of the car is also reduced. Therefore, the preparation of spring steel strips with high performance shock absorption is the future development trend.

Method used

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A method for preparing a high-performance shock-absorbing spring steel strip for automobiles in this embodiment specifically includes the following steps:

[0037] Step one, raw material preparation.

[0038] The raw material in this step is 65Mn spring steel, the chemical composition content is: C: 0.68%; S: 0.002%; Mn: 1.08%; P: 0.019%; Si: 0.22%, and the rest is iron and impurities. The raw material specification is 3.5*170 mm. Carry out a three-step inspection of the prepared raw materials. First, confirm the steel factory, and then inspect the appearance of the raw materials. The edges of the raw materials are required to be smooth, and there are no flanging burrs on the edges. At the same time, use a vernier caliper to measure the width. The width deviation is required to be -2mm— Within 3mm, the raw material components are finally tested.

[0039] Step two, pickling.

[0040]In this step, a hydrochloric acid solution with a mass concentration of 18-20% is used...

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PUM

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Abstract

The invention discloses a preparing method of a high-performance shock absorbing spring steel band for an automobile and belongs to the technical field of spring steel band preparation. The preparing method comprises the following steps: preparing raw materials, carrying out acid pickling, carrying out continuous rolling, adopting a bell type furnace to carry out first annealing, carrying out rolling and splitting, adopting the bell type furnace to carry out second annealing, examining finished products, carrying out oiled packaging and carrying out warehousing. The fluctuation of the thickness tolerance and the width tolerance of the spring steel band prepared by adopting the technical scheme is small, so that the spring steel band has stable performance. Besides, the strength, hardness and ductility of the spring steel band are effectively improved, so that the requirement of the automobile on a shock absorbing effect can be met. At the same time, the defects of a preparing technology of the spring steel band in the prior art are overcome.

Description

technical field [0001] The invention relates to the technical field of spring steel strip preparation, in particular to a method for preparing a high-performance shock-absorbing spring steel strip for automobiles. Background technique [0002] At present, with the rapid development of the automobile industry, the performance of automobiles is constantly being refreshed, and shock absorbing equipment is one of the important parts of automobiles. When the car is driving on the uneven ground, the car will vibrate obviously, which is very prone to traffic accidents. At present, most cars achieve the maximum vibration effect by installing shock absorbing devices, and the shock absorbing devices are made of multi-layer It is made of spring steel strips. Therefore, the damping effect of the shock absorbing device is mainly determined by the performance of the spring steel strips. At present, the spring steel strips are complicated in process, long in production cycle and consume a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/04C22C38/02C21D1/26C21D1/74C21D8/02B21B1/24
CPCB21B1/24B21B2261/04B21B2261/06B21B2261/22C21D1/26C21D1/74C21D8/0268C22C38/02C22C38/04
Inventor 唐时葵秦升龙俞雷
Owner ANHUI CHUJIANG SPECIAL STEEL CO LTD
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