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Steel strip for household electric appliance panel and production method thereof

A manufacturing method and panel technology, which can be applied to manufacturing tools, heat treatment equipment, furnaces, etc., can solve the problems of inability to meet the quality requirements for the production of household electrical appliance steel, the common cold-rolled steel strip is hard, and the surface treatment is not good, so as to ensure cleanliness. high precision, guaranteed thickness accuracy, and promising results

Active Publication Date: 2013-07-10
浙江龙盛薄板有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Ordinary cold-rolled steel strips cannot meet the quality requirements for the production of steel for household appliances due to defects such as hardness and poor surface treatment

Method used

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  • Steel strip for household electric appliance panel and production method thereof
  • Steel strip for household electric appliance panel and production method thereof
  • Steel strip for household electric appliance panel and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0052] (1) Hot rolling:

[0053] The composition of hot-rolled raw materials is shown in the table below:

[0054] serial number

C

Si

mn

P

S

Al

1

0.015

0.15

0.2

0.016

0.014

0.035

2

0.016

0.1

0.19

0.014

0.014

0.04

3

0.02

0.13

0.18

0.013

0.013

0.038

[0055] The balance is Fe and trace unavoidable impurities;

[0056] The finishing temperature of hot rolling is 870±20℃, and the coiling temperature of finishing rolling is 580±20℃;

[0057] (2) pickling

[0058] The hot-rolled steel coil is pickled by a push-pull shallow tank turbulent pickling unit, and pickled with hydrochloric acid. The concentration of hydrochloric acid is controlled between 7% and 17% (w / w) to remove the surface oxide scale.

[0059] (3) cold rolling

[0060] After pickling, the steel coil is rolled by a double-stand reversible rolling mill;

[0061] (4) Degreasing of the v...

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PUM

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Abstract

The invention provides a steel strip for deep drawing of a household electric appliance panel film. The steel strip comprises the following chemical components by mass percent: 0.01 percent<=C<=0.03 percent; zero percent<Si<=0.02 percent; 0.1 percent<=Mn<=0.25 percent; zero percent<P<=0.02 percent; zero percent<S<=0.025 percent; 0.02 percent<=Al<=0.05 percent; and the balance of Fe. The high-hardness steel strip for a household electric appliance panel totally meets the quality requirements for strength, hardness and elongation of refrigerator panel steel based on many tests and trial use, is popular among clients, and has popularization application value and broad prospect as the cold rolled strips for household appliances have a very broad development prospect.

Description

(1) Technical field [0001] The invention relates to a steel strip (LJD-F) steel strip for a home appliance panel and a manufacturing method. (2) Background technology [0002] The home appliance industry is an emerging industry formed after the reform and opening up. With the implementation of the policy of sending home appliances to the countryside in the past few years, the domestic market, especially the rural market, has a strong demand. It is also very different from the surface requirements. For example, because the door handle of the refrigerator panel is stamped deeper, the stamping performance of the steel plate is required to be better, and at the same time, it is required to have a certain strength after baking. In addition, the steel used for household appliances is directly used as the appearance of the final product. The quality requirements for the board surface are also high, and there should be no defects visible to the naked eye on one side. [0003] Accor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/06C21D8/02C21D9/67C25F1/02
Inventor 潘小成黄爱军祝海容刘海潮
Owner 浙江龙盛薄板有限公司
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