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Low-cost well-formed battery shell steel and production method thereof

A low-cost technology for battery shells, applied in battery pack parts, circuits, electrical components, etc., to improve steel toughness, refine grains, and reduce the content of nitrides and harmful gases

Active Publication Date: 2021-12-10
武汉钢铁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] This application provides a low-cost and well-formed battery case steel and its production method to solve the technical problem of how to make battery case steel with excellent formability

Method used

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  • Low-cost well-formed battery shell steel and production method thereof
  • Low-cost well-formed battery shell steel and production method thereof
  • Low-cost well-formed battery shell steel and production method thereof

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Embodiment Construction

[0032] In order to make the objects, technical solutions, and advantages of the present application, the technical solutions in the present application embodiment will be described in connext of the present application embodiment, and It is a part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative labor are the scope of the present application.

[0033] The present application provides a low-cost well-formed battery shell steel, and the chemical composition of the battery shell steel comprises: C: 0.008% ~ 0.02%, Mn: 0.1% ~ 0.3%, Si: ≤ 0.01%, ALS: 0.050 ~ 0.10%, P: ≤0.015%, S: ≤0.0020%, N: ≤0.004%, Cu: ≤0.01, Ti: ≤0.01 ~ 0.04%, T [o] ≤ 0.002%, the rest is Fe and Inevitable impurities, where t [o] is oxide inclusions.

[0034] The low-cost well-molded battery shell steel for this application is a low-yield aluminum...

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Abstract

The invention relates to the field of iron and steel smelting, in particular to a low-cost well-formed battery shell steel and a production method thereof. The low-cost well-formed battery shell steel is prepared from components in percentage by mass, 0.008%-0.02% of C, 0.1%-0.3% of Mn, smaller than or equal to 0.01% of Si, 0.050%-0.10% of Als, smaller than or equal to 0.015% of P, smaller than or equal to 0.0020% of S, smaller than or equal to 0.004% of N, smaller than or equal to 0.01% of Cu, smaller than or equal to 0.01% of Ti, smaller than or equal to 0.002% of T [O] and the balance of Fe and inevitable impurities, wherein T [O] is an oxidation inclusion; T [O] in steelmaking is the content of oxidation series inclusions, the deoxidation time can be shortened, the inclusions in steel are reduced, and a steel plate formed through follow-up punch forming has more excellent machining forming performance; the steel toughness is improved, the steel anisotropy is reduced, and the process is matched, so that the steel has good yield strength elongation and good forming performance.

Description

Technical field [0001] The present application relates to the field of steel smelting, in particular, relates to a low-cost well-molded battery shell steel and its production methods. Background technique [0002] Battery shell steel is a thin-specific cold-rolled steel strip, mainly used for the manufacture of battery housings, and has a high requirement of the tissue properties, inclusions, surface quality, etc. of the material. [0003] At present, the battery-shell substrate product is mainly divided into two: one is a lower C content. At the same time, the gap C atoms in tannami, and the Titanium element formation is not timeline, the IFINTERSTITIAL FREE) steel, the IF battery shell steel has excellent deep Punch performance. The other is to use a low-carbon steel component system, by adding Al elements to deoxygenated aluminum town static steel, by controlling the performance of the steel sheet to meet the technical requirements of the battery. If IF steel is significantly ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/14C22C38/16C21D8/02H01M50/119
CPCC22C38/04C22C38/02C22C38/06C22C38/16C22C38/14C22C38/001C21D8/0226C21D8/0236C21D8/0247H01M50/119Y02E60/10
Inventor 王俊霖祝洪川胡宽辉孙伟华陈一鸣
Owner 武汉钢铁有限公司
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