Cold-rolled steel sheet for enamel for deep drawing and production method thereof
A technology of cold-rolled steel sheet and production method, which is applied in the field of cold-rolled steel sheet for enamel and its production, can solve the problem that the anti-scale explosion performance and the adhesion performance cannot fully meet the requirements, and achieve excellent anti-scale explosion performance, excellent adhesion performance, Difficulty-reducing effect
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Embodiment 1
[0054] In the cold-rolled steel sheet for deep drawing of the present invention for enamel, the mass percentages of the main chemical components of the cold-rolled steel sheet in this embodiment are: C=0.001%, Si=0.045%, Mn=0.25%, P=0.040%, S=0.025%, Als=0.010%, Ti=0.045%, N=0.0050%, B=0.0033%, N / B=1.51 (as shown in Table 1). In addition, the production method of a cold-rolled steel sheet for enamel for deep-drawing purposes of the present invention, the specific process parameters in this embodiment are as follows (as shown in Table 2): the casting temperature is 1200 ° C; the final rolling temperature is 890 ° C ; Coiling temperature is 655°C; cold rolling reduction rate is 76.2%; annealing is continuous annealing, soaking temperature is 840°C, soaking time is 50s; over-aging temperature is 360°C, over-aging time is 4min; flat elongation rate 0.8%. The properties of the steel plates produced according to this process parameter are as follows:
[0055] Yield strength is 235...
Embodiment 2
[0058] The mass percentages of the main chemical components of the cold-rolled steel sheet in this embodiment are: C=0.004%, Si=0.005%, Mn=0.10%, P=0.060%, S=0.012%, Als=0.060%, Ti=0.060%, N=0.0115%, B=0.0065%, N / B=1.76 (as shown in Table 1). In addition, the production method of a cold-rolled steel sheet for enamel for deep-drawing purposes of the present invention, the specific process parameters in this embodiment are as follows (as shown in Table 2): the casting temperature is 1220 ° C; the final rolling temperature is 920 ° C ; Coiling temperature is 700°C; cold rolling reduction rate is 84.7%; annealing is continuous annealing, soaking temperature is 800°C, soaking time is 100s; over-aging temperature is 400°C, over-aging time is 8min; flat elongation rate 1.2%. The properties of the steel plates produced according to this process parameter are as follows:
[0059] Yield strength is 224MPa, tensile strength is 358MPa, A 50The elongation is greater than 44.0%, the plas...
Embodiment 3
[0062] In the cold-rolled steel sheet for deep drawing of the present invention for enamel, the mass percentages of the main chemical components of the cold-rolled steel sheet in this embodiment are: C=0.001%, Si=0.045%, Mn=0.25%, P=0.040%, S=0.025%, Als=0.010%, Ti=0.045%, N=0.0050%, B=0.0033%, N / B=1.51 (as shown in Table 1). In addition, in a method for producing a cold-rolled steel sheet for enamel for deep drawing of the present invention, the specific process parameters in this embodiment are as follows (as shown in Table 2): the casting billet discharge temperature is 1200°C; the final rolling temperature is 917°C ; Coiling temperature is 645°C; cold rolling reduction rate is 75.9%; annealing is bell annealing, the heating rate in the heating section is 80°C / h, the cold spot temperature is 650°C, the heating time is 9h, and the cooling section rate is 30°C / h, Incubate at 360°C for 4h; flat elongation is 1.0%. The properties of the steel plates produced according to this ...
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Abstract
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