Low-carbon cold-rolled steel plate for enamel and production method thereof

A technology of cold-rolled steel plate and production method, which is applied in the field of low-carbon cold-rolled steel plate for enamel and its production field, can solve problems such as scale explosion and poor adhesion, achieve optimal elongation, increase elongation, and maximize scale explosion resistance Excellent effect

Active Publication Date: 2019-06-28
MAANSHAN IRON & STEEL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages in the prior art that cold-rolled steel sheets often have defects such as scale explosion and poor adhesion during the enamelling process, and provide a low-carbon cold-rolled steel sheet for enameling and a production method thereof. After the steel plate is enamelled, it has good anti-scale explosion performance, adhesion performance and anti-pinhole performance

Method used

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  • Low-carbon cold-rolled steel plate for enamel and production method thereof
  • Low-carbon cold-rolled steel plate for enamel and production method thereof
  • Low-carbon cold-rolled steel plate for enamel and production method thereof

Examples

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Embodiment 1

[0051] A low-carbon cold-rolled steel sheet for enamelling according to the present invention. The mass percentages of the main chemical components of the cold-rolled steel sheet in this embodiment are: C=0.01%, Si=0.007%, Mn=0.30%, P=0.015%, S= 0.020%, Als=0.022%, Ti=0.039%, N=0.0064% (as shown in Table 1). In addition, the production method of a low-carbon cold-rolled steel plate for enamelling of the present invention, the specific process parameters in this embodiment are as follows (as shown in Table 2): the casting billet temperature is 1180°C; the final rolling temperature is 880°C; The temperature is 600°C; the reduction rate of cold rolling is 72.7%; the annealing is bell annealing: the heating rate of the heating section is 80°C / h, the temperature of the cold spot is 620°C, the heating time is 9h, and the rate of the cooling section is 30°C / h h, heat preservation at 360°C for 4 hours; the flat elongation rate is 0.8%. The properties of the steel plate produced accor...

Embodiment 2

[0054] A low-carbon cold-rolled steel sheet for enamelling according to the present invention. The mass percentages of the main chemical components of the cold-rolled steel sheet in this embodiment are: C=0.02%, Si=0.025%, Mn=0.10%, P=0.005%, S= 0.015%, Als=0.056%, Ti=0.011%, N=0.0027% (as shown in Table 1). In addition, the production method of a low-carbon cold-rolled steel plate for enamelling according to the present invention, the specific process parameters in this embodiment are as follows (as shown in Table 2): the casting billet exit temperature is 1220°C; the final rolling temperature is 910°C; The temperature is 650°C; the reduction rate of cold rolling is 79.4%; the annealing is bell annealing: the heating rate of the heating section is 50°C / h, the temperature of the cold spot is 630°C, the heating time is 5h, and the rate of the cooling section is 60°C / h h, heat preservation at 380°C for 3 hours; the flat elongation rate is 1.1%. The properties of the steel plate...

Embodiment 3

[0057] A low-carbon cold-rolled steel sheet for enamelling according to the present invention. The mass percentages of the main chemical components of the cold-rolled steel sheet in this embodiment are: C=0.03%, Si=0.020%, Mn=0.40%, P=0.009%, S= 0.030%, Als=0.037%, Ti=0.032%, N=0.0043% (as shown in Table 1). In addition, the production method of a low-carbon cold-rolled steel plate for enamelling according to the present invention, the specific process parameters in this embodiment are as follows (as shown in Table 2): the casting billet temperature is 1200°C; the final rolling temperature is 900°C; The temperature is 620°C; the reduction rate of cold rolling is 70.9%; the annealing is bell annealing: the heating rate of the heating section is 30°C / h, the temperature of the cold spot is 650°C, the heating time is 5h, and the rate of the cooling section is 80°C / h h, heat preservation at 400°C for 2 hours; the flat elongation rate is 1.4%. The properties of the steel plate prod...

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Abstract

The invention discloses a low-carbon cold-rolled steel plate for enamel and a production method thereof, and belongs to the technical field of metal materials. The low-carbon cold-rolled steel plate for enamel disclosed comprises the following chemical components in percentage, by mass, 0.010% to 0.030% of C, Si is less than or equal to 0.0030%, 0. 10% to 0.40% of Mn, P is less than or equal to 0.015%, 0.010% to 0.030% of S, 0.010% to 0.60% of Als, 0.010% to 0.040% of Ti, 0.0010% to 0.0070% of N, and the balance of Fe and inevitable impurities. The method aims to overcome the defects that in the prior art, the defects that the cold-rolled steel plate often generates scale explosion, poor adherence and the like in the enamel process are overcome, the low-carbon cold-rolled steel plate for enamel and a production method of the low-carbon cold-rolled steel plate for enamel has good anti-scale explosion performance, adherence property and pinhole resistance after enamel.

Description

technical field [0001] The invention relates to the field of metal materials, in particular to a low-carbon cold-rolled steel plate for enamelling and a production method thereof. Background technique [0002] The enamel steel plate is a new type of composite material in which the inorganic vitreous material is condensed on the base steel plate by melting and firmly combined with the steel plate. Enamel coating on the surface of the steel plate can prevent the steel plate from rusting, so that the steel plate will not form an oxide layer on the surface when it is heated and can resist the erosion of various liquids. With the continuous advancement of technology, the enamel industry has higher and higher requirements for steel plates. Ordinary cold-rolled steel sheets often have defects such as scale explosion and poor adhesion during the enamelling process, which cannot meet the requirements of enamel. Therefore, it is urgent to design a cold-rolled enamelled steel sheet wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/06C22C38/14C21D8/02C21D1/26
Inventor 张宜张建王占业李进舒宏富熊华报高光泽
Owner MAANSHAN IRON & STEEL CO LTD
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