Production technique of high-accuracy cold-rolling carbon-steel steel belt for electronic industry

Abstract

The invention relates to a production technique of a high-accuracy cold-rolling carbon-steel steel belt for the electronic industry, comprising the following steps: pickling the raw materials, cold rolling primarily, cutting edges, spraying and degreasing, annealing in a cover type manner, cold rolling secondarily, stretching crookedly and straightening and cutting into a finished product. The production technique adopts a four-roller high-accuracy reversing rolling machine and a unique rolling technique to conduct cold rolling, leads the product to has little thickness tolerance fluctuation,stable performance, uniform and consistent surface color, and no defects of color difference, scratching, slip line and the like, good plate-shaped flatness and straightness by the techniques of degreasing, annealing in a cover type manner, stretch bending and straightening, and the like, remarkably improves the product quality, is suitable for industrialized production, meets the high-quality requirements of the electronic industry, replaces stainless steel materials, and reduces the cost.

Description

technical field [0001] The invention relates to an electronic product accessory that can be widely used in the field of communication (mainly mobile phones), such as connectors, shielding covers, brackets, built-in antennas, metal patches, notebook computers, palmtop computers, and connectors on hard disks in the IT field. The production process of high-precision cold-rolled carbon steel strips is used. Background technique [0002] At present, most of the steel strips used in the electronics industry are made of stainless steel, and the cost is high, while the cold-rolled carbon steel strips are rolled on four-roll or six-roll continuous rolling mills or reversible mills using emulsion as the cold rolling process lubrication coolant , and use other auxiliary equipment to improve the performance, surface and flatness of the plate shape, but the cold-rolled steel strip made by the existing process has large fluctuations in thickness tolerance, unstable mechanical properties, ...

AI Technical Summary

Problems solved by technology

[0002] At present, most of the steel strips used in the electronics industry are made of stainless steel, and the cost is high, while the cold-rolled carbon steel strips are rolled on four-roll or six-roll continuous rolling mills or reversible mills using emulsion as the cold rolling process lubrication coolant , and use other auxiliary equipment to improve the performance, surface and flatness of the plate shape, but the cold-rolled steel strip made by the existing process has large fluctuations in thickness tolerance, unstable mechanical properties, color difference, scratches, and slippage on the surface Disadvantages such as poor line and plate shape flatness

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