Cold-rolled steel strip processing technology

Abstract

The invention discloses a processing technology for cold-rolled strip steel. The key points of the technical scheme are: the steel strip with a thickness of 3 mm is transferred to the left coiler through a forward-rotating uncoiler, and then enters the left tension gauge sequentially through the left steering roller. Conduct tension test, enter the left speedometer for speed measurement, enter the left thickness gauge for thickness test, and then enter the six-roll reversing cold rolling mill for rolling, and pass through the cooling device installed on the six-roll reversing cold rolling mill for cooling during rolling , after rolling and cooling, enter the right tensiometer for tension test, enter the right speedometer for speed measurement, enter the right thickness gauge for thickness test, and then press in the reverse direction. After pressing back and forth seven times, finally pass the right closing The rolling machine is used for winding to complete the pressing process; it has the effect of improving the rolling plasticity of the steel strip, and then improving the rolling quality of the steel strip.

Description

technical field [0001] The invention relates to the field of steel production and processing, more specifically, it relates to a cold-rolled steel strip processing technology. Background technique [0002] At present, the thickness range of cold-rolled steel sheets is generally 0.1-3mm; it is the product with the largest output and the most widely used in steel products, and is often used in automobile covers, refrigerators, washing machines and other household appliances shells, steel furniture, various building materials, etc. It can also be used to process steel pipes, coated steel plates, etc. [0003] The production process of steel cold-rolled sheet is hot-rolled coil, pickling to remove iron oxide scale on the surface of hot-rolled coil, cleaning, drying and trimming, rolling into coil, and then rolling by cold rolling mill At present, in the cold rolling production process of rolling 2.75mm hot-rolled coils and plates into 0.15mm steel strips, the required thickness...

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Problems solved by technology

[0003] The production process of steel cold-rolled sheet is hot-rolled coil, pickling to remove iron oxide scale on the surface of hot-rolled coil, cleaning, drying and trimming, rolling into coil, and then rolling by cold rolling mill At present, in the cold rolling production process of rolling 2.75mm hot-rolled coils and plates into 0.15mm steel strips, the required thickness is achieved through repeated rolling, but the steel plate will generate a certain amount of heat during the rolling process , it is easy to soften and recrystallize during cold rolling, resulting in a decrease in the plasticity of the steel strip and affecting the rolling quality of the steel strip

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