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Steel strip for LED bracket and manufacturing method thereof

A technology for an LED bracket and a manufacturing method, which is applied in the field of steel strips for LED brackets and their manufacturing, can solve the problems of poor thickness accuracy, inability to meet the quality requirements for producing LED brackets, and insufficient hardness of ordinary cold-rolled steel strips.

Inactive Publication Date: 2013-05-01
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

[0008] Ordinary cold-rolled steel strips cannot meet the quality requirements for the production of LED brackets due to defects such as insufficient hardness, poor thickness accuracy, and insufficient surface finish.

Method used

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  • Steel strip for LED bracket and manufacturing method thereof
  • Steel strip for LED bracket and manufacturing method thereof
  • Steel strip for LED bracket and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] (1) Hot rolling:

[0048] The composition of hot-rolled raw materials is shown in the table below:

[0049] serial number

C

Si

mn

P

S

Al

1

0.06

0.015

0.28

0.012

0.011

0.02

2

0.05

0.012

0.25

0.015

0.01

0.021

3

0.03

0.01

0.2

0.012

0.009

0.029

[0050] The balance is Fe and trace unavoidable impurities;

[0051] The finishing temperature of hot rolling is 870±20℃, and the coiling temperature of finishing rolling is 580±20℃;

[0052] (2) pickling

[0053] Hot-rolled steel coils are pickled by a push-pull shallow-trough turbulent-flow pickling unit, using hydrochloric acid pickling, the concentration is controlled between 7% and 17% (w / w), and the surface oxide scale is removed.

[0054] (3) cold rolling

[0055] After pickling, the steel coil is rolled by a double-stand reversible rolling mill, and the roughness of the rolling mill roll is...

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Abstract

The invention provides a steel strip for an LED bracket and a manufacturing method thereof. The steel strip comprises the following chemical compositions by mass percent: 0.03%<=C<=0.07%, 0.01%<=Si<=0.03%, 0.2%<=Mn<=0.3%, 0%<P<0.02%, 0%<S<0.02%, 0.01%<=Al<=0.035% and the balance of Fe, as well as a trace of inevitable impurities. Repeated tests and trials show that the LED steel strip completely satisfies the quality requirements on the strength, the rigidity and the extensibility, which ensure that the LED bracket is free from cracks after being punched and bent for 6 times, and at present, the LED steel strip gains popularity of customers; and as the LED new material cold-rolled strip has a very wide development prospect, the popularization and application values are extremely high and the prospect is very wide.

Description

(1) Technical field [0001] The invention relates to a steel strip for an LED bracket and a manufacturing method thereof. (2) Background technology [0002] LED lighting has become an industry vigorously promoted and supported by the government in this century because of its advantages such as green environmental protection, low energy consumption, long life, and multiple colors. The demand for cold-rolled steel strips for the production of LED lamp brackets has also increased. The rolled steel strip requires a certain hardness and surface finish. Because it is different from the stamping process on the surface of the conventional steel strip, it punches holes in the thickness direction of the steel strip. Therefore, the thickness accuracy of the steel strip is required to be high. Electroplating, etc. have stricter requirements on the surface roughness of the steel strip. [0003] According to a large amount of research data from customers, it is determined that the LED bra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/06C21D8/02
Inventor 潘小成黄爱军祝海容李鹏飞尤启福
Owner 浙江龙盛薄板有限公司
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