Production method for cold-rolled oriented silicon steel continuously passing through pickling line without shot blasting

Abstract

The invention discloses a method for enabling cold-rolled oriented silicon steel to continuously pass through a picking line without shot blasting during the production process. The production method comprises the following seven steps of: uncoiling, passing through a pickling slot, movably jacketing the head part, cleaning by water, drying by hot air, movably jacketing the tail part and coiling, wherein the oriented silicon steel belt is discharged by an coiling machine, and then passes through each process stage of the production line at a constant process speed, so that the purpose of pickling and removing an iron oxide skin layer on the surface of the steel belt is achieved. The production method disclosed by the invention has the innovation point that the shot-blasting treatment process before the pickling is omitted, but pickling and washing by water are adopted, so that the environment pollution caused by shot blasting and the harmful effects to the quality of the cold-rolled orientated silicon steel belt when the steel belt passes through the shot-blasting process stage are removed, the product quality is stable and reliable, the production cost is reduced, the pollution is remarkably reduced and the working environment is effectively improved.

Description

technical field [0001] The invention relates to a method for passing through a pickling line during production of cold-rolled oriented silicon steel, and more specifically relates to a method for continuously passing the cold-rolled oriented silicon steel through the pickling line without shot blasting. Background technique [0002] Traditionally, in the production process of cold-rolled grain-oriented silicon steel, the raw steel coil of grain-oriented silicon steel should be shot blasted and pickled, and the oxide scale on the surface of the steel strip should be cleaned, and then cold rolling, continuous decarburization annealing, and high temperature annealing can be carried out. 1. After the oriented silicon steel strip passes through the hot-stretching leveling annealing line, it forms a finished product state with a surface insulating coating and good magnetic properties. [0003] Since the raw steel strips for producing oriented silicon steel strips are hot-rolled st...

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Problems solved by technology

[0011] In order to overcome the deficiencies of the prior art, the present invention provides a cleaning method for the oriented silicon steel strip without shot blasting to pass through the pickling line continuously. This method has high cleaning efficiency, good cleaning effect, simple operation and easy control, and can save The huge power consumption of shot blasting and pickling eliminates the environmental pollution caused by shot blasting noise and iron oxide powder, and eliminates the potential product defects of oriented silicon steel strips due to shot blasting. The product quality is stable and reliable, and the environmental pollution is significantly reduced. Low labor intensity, good working environment

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