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Precision stamping cold-rolled steel plate for automobile seat adjuster gear plate and manufacturing method thereof

A car seat and precision stamping technology, which is applied in the field of cold-rolled steel plates, can solve the problems of being unsuitable for high-speed precision stamping, low dimensional accuracy, and low spheroidization rate, and achieve shortened annealing and holding time, good surface quality, and good uniformity Effect

Active Publication Date: 2018-11-23
SHANGHAI MEISHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to provide a precision stamping cold-rolled steel plate for a car seat adjuster tooth disc and a manufacturing method thereof, so as to solve the problem of low dimensional accuracy, low spheroidization rate, and High cost, not suitable for high-speed precision stamping technical problems

Method used

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  • Precision stamping cold-rolled steel plate for automobile seat adjuster gear plate and manufacturing method thereof
  • Precision stamping cold-rolled steel plate for automobile seat adjuster gear plate and manufacturing method thereof
  • Precision stamping cold-rolled steel plate for automobile seat adjuster gear plate and manufacturing method thereof

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Embodiment Construction

[0047] The present invention will be further described below in conjunction with Examples 1-4 and Comparative Example 1—disclosed in Chinese Patent Application No. 200910196007.4, and Comparative Example 2—disclosed in Chinese Patent Application No. 200780004015.3, as shown in Tables 1 to 4.

[0048] Table 1 The chemical composition of the present invention (% by weight), the balance is Fe and unavoidable impurities.

[0049]

[0050] According to the requirements of the material composition design of the present invention, pre-desulfurization of molten iron is adopted, top-bottom compound blowing of converter, Ar blowing station (or LF furnace temperature rise) Bottom blowing Ar ensures the stirring time is more than 8 minutes, RH furnace carries out composition fine-tuning, vacuum cycle degassing Treatment, to ensure that the RH pure degassing time is greater than 8 minutes, Ar protection casting is blown throughout the process, and cut into length continuous casting slabs...

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Abstract

The invention relates to a cold rolled steel plate used for precision stamping car seat adjuster gear disks, and a preparation method thereof. The preparation method is used for solving technical problems of the prior art that the dimensional precision of conventional cold rolled steel plates used for precision stamping car seat adjuster gear disks is low, spheroidization rate is relatively low, cost is high, and the conventional cold rolled steel plates are not suitable for high speed precision stamping. The cold rolled steel plate used for precision stamping car seat adjuster gear disks contains, by weight, 0.15 to 0.20% of C, Si<=0.05%, 0.60 to 0.80% of Mn, P<=0.018%, S<=0.008%, 0.03 to 0.07% of Alt, N<=0.0060%, and the balance Fe and inevitable impurities. The cold rolled steel plate can be used for preparing parts such as car seat adjuster gear disks via precision stamping.

Description

technical field [0001] The invention relates to a cold-rolled steel plate used for precision stamping, in particular to a cold-rolled steel plate for precise stamping of a tooth disc of an automobile seat adjuster and a manufacturing method thereof. Background technique [0002] The hot-rolled steel plate produced by the hot rolling mill generally needs to be pickled and cold-rolled and spheroidized annealed to improve the dimensional accuracy and internal structure of the material, so that the strength and plasticity can be well matched. It is widely used in the fine blanking industry, manufacturing Such as automobiles, motorcycles, machinery, hardware, home appliances, cameras, clocks, instruments, communication electronics and other precision parts. Traditional precision parts processing methods have many procedures and poor precision, and are generally completed by general punching, machining, forging, casting and powder metallurgy processing. After the fine blanking pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22C38/06C21D8/02
Inventor 王进穆海玲王银军王海军
Owner SHANGHAI MEISHAN IRON & STEEL CO LTD
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