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Production method of cold-rolled bright strip steel

A production method and bright strip technology, applied in the field of strip steel preparation, can solve problems such as easy deformation and cracking, low hardenability, and low strength of welded joints

Inactive Publication Date: 2016-10-26
HUAIBEI YUANLI METAL PROD CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Similarly, cold-rolled strip steel also has defects: poor hot hardness, low hardenability, easy deformation and cracking, low plasticity, toughness and elasticity, weak welds, low strength of welded joints, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Embodiment 1 A kind of production method of cold-rolled bright steel strip

[0063] A kind of production method of cold-rolled bright steel strip, comprises the following steps:

[0064] 1) Ingredients: The ingredients are selected according to the following mass percentages: carbon 0.5%, zinc 2.4%, magnesium 0.8%, copper 3%, aluminum 4%, chromium 0.2%, manganese 0.4%, nickel 0.1%, silicon 1%, cadmium 0.05 -0.09%, scandium 0.03%, strontium 0.08%, N-ethyl-3-picoline tetrafluoroborate 2%, allyl sodium sulfonate 1%, sodium thiosulfate 0.8%, tetrabutyl bromide Ammonium chloride 0.4%, 2,6-di-tert-butyl-4-methylphenol 1%, polytetrafluoroethylene 0.1%, sodium chloride 0.1%, the balance is iron;

[0065] 2) Smelting: a. Mix zinc, magnesium, copper, aluminum, manganese and iron evenly and put them into the pre-baking oven. The temperature is controlled at 300°C and heated for 80 minutes;

[0066] b. The mixture of zinc, magnesium, copper, aluminum, manganese and iron in step a...

Embodiment 2

[0076] Embodiment 2 A kind of production method of cold-rolled bright steel strip

[0077] A kind of production method of cold-rolled bright steel strip, comprises the following steps:

[0078] 1) Ingredients: The ingredients are selected according to the following mass percentages: 2% carbon, 3.6% zinc, 1% magnesium, 5% copper, 6% aluminum, 0.45% chromium, 0.9% manganese, 0.3% nickel, 1.7% silicon, and 0.07% cadmium , scandium 0.05%, strontium 0.1%, N-ethyl-3-picoline tetrafluoroborate 3%, allyl sodium sulfonate 2%, sodium thiosulfate 1%, tetrabutylammonium bromide 0.6 %, 2,6-di-tert-butyl-4-methylphenol 2%, polytetrafluoroethylene 0.4%, sodium chloride 0.3%, the balance is iron;

[0079] 2) Smelting: a. Mix zinc, magnesium, copper, aluminum, manganese and iron evenly and put them into the pre-baking oven. The temperature is controlled at 310°C and heated for 85 minutes;

[0080] b. The mixture of zinc, magnesium, copper, aluminum, manganese and iron in step a is transferre...

Embodiment 3

[0090] Embodiment 3 A kind of production method of cold-rolled bright steel strip

[0091] A kind of production method of cold-rolled bright steel strip is characterized in that: comprises the following steps:

[0092] 1) Ingredients: The ingredients are selected according to the following mass percentages: carbon 3.5%, zinc 4.8%, magnesium 1.2%, copper 7%, aluminum 8%, chromium 0.7%, manganese 1.4%, nickel 0.5%, silicon 2.8%, cadmium 0.09 %, scandium 0.07%, strontium 0.12%, N-ethyl-3-methylpyridine tetrafluoroborate 4%, sodium allyl sulfonate 3%, sodium thiosulfate 1.2%, tetrabutylammonium bromide 0.8%, 2,6-di-tert-butyl-4-methylphenol 1-3%, polytetrafluoroethylene 0.7%, sodium chloride 0.5%, the balance is iron;

[0093] 2) Smelting: a. Mix zinc, magnesium, copper, aluminum, manganese and iron evenly and put them into the pre-baking oven. The temperature is controlled at 320°C and heated for 90 minutes;

[0094] b. The mixture of zinc, magnesium, copper, aluminum, manganes...

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Abstract

The invention discloses a production method of cold-rolled bright strip steel. The production method of the cold-rolled bright strip steel comprises the following steps: (1) batching, (2) smelting, (3) compression molding, (4) annealing treatment, (5) cold-rolling, (6) uncoiling, (7) welding, and (8) cleaning and drying to obtain the cold-rolled bright strip steel. The cold-rolled bright strip steel produced by the invention not only has high dimensional accuracy, bright surface, high magnetic induction, low iron loss, low surface roughness, uniform thickness, high lamination factor and good blanking property, but also has excellent hardness, good stretching resistance, good hot hardness, high hardenability, difficulty in deformation and cracking, high plasticity, toughness and elasticity, high strength of a welded joint and the like, and can replace a thick hot-rolled strip for the same purpose so as to reduce the use amount of steel, and the economic significance is large.

Description

technical field [0001] The invention belongs to the technical field of strip steel preparation, in particular to a production method of cold-rolled bright strip steel. Background technique [0002] Strip steel is a narrow and long steel plate produced by various steel rolling enterprises to meet the needs of industrial production of various metal or mechanical products in different industrial sectors. Strip steel, also known as steel strip, is within 1300mm in width, and the length is slightly different according to the size of each roll. Strip steel is generally supplied in coils, and has the advantages of high dimensional accuracy, good surface quality, easy processing, and material saving. The same as the steel plate, strip steel is divided into two types according to the material used: ordinary strip steel and high-quality strip steel; according to the processing method, it is divided into two types: hot-rolled strip steel and cold-rolled strip steel. Strip steel is wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C33/04C21D8/02C22C38/16C22C38/06C22C38/18C22C38/04C22C38/02C22C38/08
CPCC22C33/006C21D8/0236C21D8/0247C22C33/04C22C38/002C22C38/02C22C38/04C22C38/06C22C38/08C22C38/16C22C38/18
Inventor 郭鹏远
Owner HUAIBEI YUANLI METAL PROD CO LTD
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