Silicon steel acid cleaning stabilizing material and application method thereof

A technology of stabilizing materials, silicon steel acid, applied in the field of pickling, can solve the problems of increasing broken belt and edge cracking accidents, affecting the production capacity of the unit, increasing the brittleness of silicon steel, etc., so as to avoid excessive pickling, reduce pickling energy consumption, and improve belt The effect of steel yield
CN103103541AActive Publication Date: 2013-05-15BAOSHAN IRON & STEEL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BAOSHAN IRON & STEEL CO LTD
Publication Date
2013-05-15

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Abstract

The invention discloses a silicon steel acid cleaning stabilizing material and an application method thereof. The silicon steel acid cleaning stabilizing material comprises an acid cleaning accelerator and an inhibitor, wherein the acid cleaning accelerator comprises the following components in percentage by weight: 5-20% of surfactant, 5-20% of organic metal chelating agent, 20-40% of reducing agent and 20-40% of water; and the inhibitor comprises the following components in percentage by weight: 10-30% of urotropin, 10-50% of diethylene glycol, 5-15% of o-xylene thiourea, 0-10% of fatty alcohol-polyoxyethylene ether and the balance of water. According to the invention, the silicon steel acid cleaning speed is increased, the speed of hydrogen atom entering strip steel is reduced, the aims of increasing the acid cleaning speed, reducing the acid cleaning temperature, reducing the consumption of hydrochloric acid and reducing brittleness of silicon steel are reached, and stable operation of silicon steel acid cleaning production is realized.
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Description

technical field

[0001] The invention relates to pickling technology, in particular to a silicon steel pickling stabilization material and a use method thereof. Background technique

[0002] Pickling is an essential process in the production process of cold-rolled strip steel. The quality of pickling has an important impact on the quality of the surface of cold-rolled strip steel and the continuity of the rolling process. In the production process of cold-rolled silicon steel, the difficulty of pickling is increased due to the oxide scale on the surface of silicon steel containing silicon compounds. In order to increase the pickling speed of silicon steel, on the one hand, shot blasting is used to remove the scale on the surface of hot-rolled strip steel before pickling; on the other hand, the purpose of removing the scale on the surface is achieved by reducing the pickling speed. . Obviously, the former method will greatly increase the production cost, and the latter metho...

Claims

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