Cold rolling steel strip and production method thereof

A technology of cold-rolled steel strips and steel strips, applied in the field of iron-chromium-aluminum electrothermal alloy cold-rolled steel strips and its production, can solve the problems of poor quality steel strips, difficult production, and intermediate shrinkage cavities, so as to improve production quality, Reduce production difficulty and improve plasticity

Inactive Publication Date: 2013-02-27
无锡舜特精密合金板带有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the steel strip is rolled with this kind of iron-chromium-aluminum alloy steel, it is easy to cause cracks, broken strips, middle shrinkage cavities, and holes.
Therefore, it is difficult to produce steel strips by cold-rolling this iron-chromium-aluminum alloy steel, and the quality of the produced steel strips is relatively poor.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] First select 80 parts by weight of scrap steel, 21 parts by weight of chromium, 5.00 parts by weight of aluminum, 0.20 parts by weight of nickel, 0.10 parts by weight of titanium, 0.01 parts by weight of cobalt, lanthanum of 0.01 parts by weight, and cerium of 0.01 parts by weight The rare earth of 0.001 weight part, stand-by.

[0050] The first step is to smelt

[0051] Bake the scrap iron and steel first to remove the moisture therein.

[0052] Afterwards, scrap iron and steel without moisture is put into the electroslag remelting furnace and melted into molten metal.

[0053] Afterwards, carry out pre-stove analysis, and adjust the elements in the metal solution so that carbon, silicon, manganese, phosphorus and sulfur account for the weight % of the metal solution respectively as:

[0054] Carbon 0.005% by weight

[0055] Silicon 0.40% by weight

[0056] Manganese 0.40% by weight

[0057] Phosphorus 0.020% by weight

[0058] Sulfur 0.020% by weight.

[0059] ...

Embodiment 2

[0080] First select 70 parts by weight of scrap steel, 23 parts by weight of chromium, 7.00 parts by weight of aluminum, 0.70 parts by weight of nickel, 0.20 parts by weight of titanium, 0.10 parts by weight of cobalt, lanthanum of 0.10 parts by weight, and cerium of 0.10 parts by weight , 0.010 parts by weight of rare earth, stand-by.

[0081] The first step is to smelt

[0082] Bake the scrap iron and steel first to remove the moisture therein.

[0083] Afterwards, scrap iron and steel without moisture is put into the electroslag remelting furnace and melted into molten metal.

[0084] Afterwards, carry out pre-stove analysis, and adjust the elements in the metal solution so that carbon, silicon, manganese, phosphorus and sulfur account for the weight % of the metal solution respectively as:

[0085] Carbon 0.030% by weight

[0086] Silicon 0.10% by weight

[0087] Manganese 0.10% by weight

[0088] Phosphorus 0.005% by weight

[0089] Sulfur 0.005% by weight.

[0090...

Embodiment 3

[0111] First select 75 parts by weight of scrap steel, 22 parts by weight of chromium, 6.00 parts by weight of aluminum, 0.50 parts by weight of nickel, 0.17 parts by weight of titanium, 0.05 parts by weight of cobalt, lanthanum of 0.04 parts by weight, and cerium of 0.06 parts by weight The rare earth of 0.005 weight part, stand-by.

[0112] The first step is to smelt

[0113] Bake the scrap iron and steel first to remove the moisture therein.

[0114] Afterwards, scrap iron and steel without moisture is put into the electroslag remelting furnace and melted into molten metal.

[0115] Afterwards, carry out pre-stove analysis, and adjust the elements in the metal solution so that carbon, silicon, manganese, phosphorus and sulfur account for the weight % of the metal solution respectively as:

[0116] Carbon 0.020% by weight

[0117] Silicon 0.25% by weight

[0118] Manganese 0.26% by weight

[0119] Phosphorus 0.012% by weight

[0120] Sulfur 0.011% by weight.

[0121] ...

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PUM

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Abstract

The present invention discloses a cold rolling steel strip and a production method thereof. The cold rolling steel strip is produced by adopting waste iron and steel, chromium, aluminum, nickel, titanium, cobalt, lanthanum, cerium, rare earth and other raw material, and carrying out smelting, forging, hot rolling, cold rolling and other steps. The cold rolling steel strip has characteristics of easy production and good quality, and is applicable for automobiles, motorcycles, electric resistance furnaces, electric heating components and other industries.

Description

technical field [0001] The invention relates to a steel strip and a production method thereof. Specifically, it is an iron-chromium-aluminum electrothermal alloy cold-rolled steel strip and a production method thereof. It is suitable for industries such as automobiles, motorcycles, resistance furnaces, and electric heating components. Background technique [0002] In the metallurgical industry, traditional iron-chromium-aluminum alloy steel mainly contains elements such as carbon, silicon, manganese, phosphorus, sulfur, chromium, nickel, and aluminum. Since iron-chromium-aluminum alloy steel is a ferrite coarse alloy, it is easy to form Coarse columnar grains make it easy to cause stress cracks and cracks at the head and tail during forging. When the steel strip is rolled with this kind of iron-chromium-aluminum alloy steel, cracked edges, broken strips, intermediate shrinkage cavities, and holes are prone to occur. Therefore, cold-rolling steel strips with this iron-chro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/52C22C33/04C21D8/02
Inventor 李纲
Owner 无锡舜特精密合金板带有限公司
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