Cold-rolled steel plate control method
A cold-rolled steel plate and control method technology, which is applied in the field of cold-rolled steel plate control and steel plate control, can solve problems such as the decrease of ductile-plastic index and the deterioration of stamping performance, and achieve the effects of saving production costs and efficient control methods and standards
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Embodiment 1
[0019] The present invention provides a control method for intermediate-stroke cold-rolled steel sheet, which in turn includes the following steps:
[0020] 1) Select the steel plate produced by Huafeng Steel Co., Ltd., and inspect the outer surface of the steel plate to ensure that the steel plate is free of bubbles, cracks, scars, delamination, cracks and inclusions;
[0021] 2) In accordance with the conventional technical means or industry standards in the field, the detection step 1) the thickness tolerance, hardness and elongation of the selected steel plate, so that the various indicators of the intermediate cold-rolled steel plate are within the following ranges: thickness tolerance :0.48~1.0±0.01mm; hardness: 50~54HRB; elongation: 31~34%.
Embodiment 2
[0023] The present invention provides a method for controlling deep-drawing cold-rolled steel sheet, which in turn includes the following steps:
[0024] 1) Select the steel plate produced by Huafeng Steel Co., Ltd. to check the outer surface of the steel plate to ensure that the steel plate is free of bubbles, cracks, scars, delamination, cracks and inclusions;
[0025] 2) In accordance with conventional technical means or industry standards in the field, check the thickness tolerance, hardness and elongation of the steel plate selected in step 1), so that the various indexes of the deep-drawn cold-rolled steel plate are within the following range: 0.48~1.0 ±0.01mm; Hardness: 45~51HRB; Elongation: 36~42%.
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