Cold-rolled enamel steel and manufacturing method thereof

A manufacturing method and enamelled steel technology, applied in the field of cold-rolled strip production, can solve the problems of increasing production costs and being unable to greatly improve the anti-scaling performance of cold-rolled enamelled steel, and achieve low cost and excellent anti-scaling The effect of simple performance and process

Inactive Publication Date: 2019-04-30
ANGANG STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method increases the production cost, and still cannot greatly improve the anti-scaling performance of cold-rolled enamelled steel, and completely avoid the occurrence of cracking defects.

Method used

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  • Cold-rolled enamel steel and manufacturing method thereof
  • Cold-rolled enamel steel and manufacturing method thereof
  • Cold-rolled enamel steel and manufacturing method thereof

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Embodiment Construction

[0032] Below by embodiment the present invention will be further described.

[0033] According to the composition ratio of the technical solution, the embodiments of the present invention perform molten iron pretreatment-converter smelting-refining-continuous casting-hot rolling-cold rolling-continuous annealing.

[0034] Hot rolling: Heating temperature: 1100-1250°C, finishing temperature: 850-960°C, coiling temperature: 650-750°C.

[0035] Continuous annealing: annealing temperature: 700-900°C, holding time: 60-240s, slow cooling temperature: 650-720°C, rapid cooling temperature: 350-430°C, overaging temperature: 300-450°C.

[0036] The composition of the steel of the embodiment of the present invention is shown in Table 1. The main process parameters of the steel of the embodiment of the present invention are shown in Table 2. The performance index of the steel of the embodiment of the present invention is shown in Table 3.

[0037] Table 1 Composition (wt %) of the embo...

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Abstract

The invention provides cold-rolled enamel steel and a manufacturing method thereof. The components of a steel plate include, by weight percentage, 0.002-0.006% of C, 0.010-0.030% of Si, 0.10-0.30% ofMn, P which is less than or equal to 0.015%, 0.010-0.030% of S, 0.010-0.050% of Al, 0.0015-0.0050% of N, 0.060-0.10% of Ti, and one or more of 0.10-0.50% of Mo, 0.001-0.003% of Ca, and 0.001-0.003% ofMg, with the balance being Fe and inevitable impurities. The manufacturing method includes hot metal pretreatment, converter smelting, refining, continuous casting, hot rolling, cold rolling and continuous annealing. The produced cold-rolled enamel steel has excellent fish-scaling resistance, adhesion performance and formability, and is simple in manufacturing method and low in cost.

Description

technical field [0001] The invention belongs to the field of cold-rolled strip production, and in particular relates to a cold-rolled enamelled steel and a manufacturing method thereof. Background technique [0002] Cold-rolled enamel steel sheets play a very important role in the national economy and are closely related to people in daily life. They are widely used in light industry, household appliances, metallurgy, chemical industry, construction and other industries to make kitchen utensils, sanitary ware, Barbecue ovens, water heater liners, building decorative panels, chemical reaction tanks, etc. [0003] The performance requirements of cold-rolled enamelled steel sheets mainly include strength, formability, scale resistance, adhesion and weldability, etc. Enameled steel sheets for different purposes require different comprehensive properties. Among them, scale explosion is the most terrible and difficult defect in the production of enamel products, and it is also th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/14C22C38/12C22C38/02C22C38/04C22C38/06C22C33/04C21D8/02
CPCC21D8/0226C21D8/0236C21D8/0247C22C33/04C22C38/001C22C38/002C22C38/02C22C38/04C22C38/06C22C38/12C22C38/14
Inventor 王永明徐承明吕家舜李锋杨洪刚周芳
Owner ANGANG STEEL CO LTD
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