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Preparation method of antimony assistant for oriented silicon steel

A technology of oriented silicon steel and antimony additives, applied in the direction of metal material coating process, coating, solid diffusion coating, etc., can solve the problems of high cost, difficult technical exchange, poor effect of reducing iron loss, etc., and achieve low cost, The production process is simple, and there is no effect of three wastes pollution

Active Publication Date: 2015-05-13
山西银圣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention provides an antimony additive for oriented silicon steel in order to solve the problems of high cost, difficulty in technical exchange and poor effect of imported antimony additive in improving the magnetic induction of oriented silicon steel and reducing iron loss in the manufacture of oriented silicon steel preparation method

Method used

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  • Preparation method of antimony assistant for oriented silicon steel

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Embodiment 1

[0015] A preparation method of an antimony additive for grain-oriented silicon steel, comprising the following steps:

[0016] Put demineralized water with a conductivity of ≤10μs / cm into the reactor, start stirring at a stirring speed of 200r / min, add 2.9 parts of titanium dioxide and 7.1 parts of antimony trioxide into the reactor, and adjust the solid-liquid mass ratio in the reactor to 1:25, and the purity of titanium dioxide added is greater than or equal to 98%, the amount of water-soluble matter contained is less than or equal to 1%, the purity of antimony trioxide is greater than or equal to 99.8%, and the amount of ferric oxide contained is less than or equal to Equal to 0.002%, then turn on the steam valve to heat, the heating temperature is 55°C, and the heating time is 1.0h;

[0017] The reactant obtained in the reactor is subjected to pressure filtration in a plate and frame filter press to obtain a filter cake;

[0018] Dry the above filter cake in a drying oven...

Embodiment 2

[0021] A preparation method of an antimony additive for grain-oriented silicon steel, comprising the following steps:

[0022] Put demineralized water with a conductivity of ≤10μs / cm into the reactor, start stirring at a stirring speed of 210r / min, add 3.0 parts of titanium dioxide and 7.0 parts of antimony trioxide into the reactor, and adjust the solid-liquid mass ratio in the reactor to 1:26, and the purity of titanium dioxide added is greater than or equal to 98%, the amount of water-soluble matter contained is less than or equal to 1%, the purity of antimony trioxide is greater than or equal to 99.8%, and the amount of ferric oxide contained is less than or equal to Equal to 0.002%, then turn on the steam valve to heat, the heating temperature is 60°C, and the heating time is 1.2 h;

[0023] The reactant obtained in the reaction kettle is subjected to pressure filtration in a plate and frame filter press to obtain a filter cake;

[0024] Dry the above filter cake in a dr...

Embodiment 3

[0027] A preparation method of an antimony additive for grain-oriented silicon steel, comprising the following steps:

[0028] Put demineralized water with a conductivity of ≤10μs / cm into the reactor, start stirring at a stirring speed of 220r / min, add 2.92 parts of titanium dioxide and 7.08 parts of antimony trioxide into the reactor, and adjust the solid-liquid mass ratio in the reactor to 1:27, and the purity of titanium dioxide added is greater than or equal to 98%, the amount of water-soluble matter contained is less than or equal to 1%, the purity of antimony trioxide is greater than or equal to 99.8%, and the amount of contained ferric oxide is less than Or equal to 0.002%, then turn on the steam valve to heat, the heating temperature is 65°C, and the heating time is 1.4h;

[0029] The reactant obtained in the reaction kettle is subjected to pressure filtration in a plate and frame filter press to obtain a filter cake;

[0030] Dry the above filter cake in a drying ove...

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Abstract

The invention relates to manufacturing of oriented silicon steel, and in particular relates to preparation of an antimony assistant for oriented silicon steel, and more particularly relates to a preparation method of the antimony assistant for oriented silicon steel. The method comprises the following steps: adding titanium dioxide, antimonous oxide and softened water into a reaction kettle, and starting stirring and opening a steam valve to heat, wherein the solid-liquid mass ratio of the titanium dioxide and antimonous oxide to the softened water is 1: (25-30); carrying out filter pressing on reactants obtained in the reaction kettle to obtain filter cakes; drying the filter cakes in a drying box at 200-250 DEGX for 3.0-4.0 hours; and crushing the dried filter cakes, and screening the obtained powder by a 320-mesh sieve frame, wherein the residue on sieve is less or equal to 0.1% based on total weight of powder. According to the preparation method, the problems that in manufacturing of oriented silicon steel, an adopted imported antimony assistant is high in cost and hard to carry out exchange of skills, and the antimony assistant has poor effects of improving induction of oriented silicon steel and reducing iron loss are solved.

Description

technical field [0001] The invention relates to the manufacture of grain-oriented silicon steel, in particular to the preparation of antimony additives for grain-oriented silicon steel, in particular to a preparation method of antimony additives for grain-oriented silicon steel. Background technique [0002] At present, the specifications of grain-oriented silicon steel are developing from general grain-oriented silicon steel to high magnetic induction (Hi-B), and improving the magnetic induction of grain-oriented silicon steel and reducing iron loss is a major issue. In the manufacturing process of high magnetic induction oriented silicon steel, in order to increase the synthesis reaction speed of silicon dioxide and magnesium oxide in the steel plate, improve the dispersion and reactivity of magnesium oxide, and improve the adhesion of magnesium silicate on the bottom insulating film layer, the secondary reprocessing The infiltration of Sb on the surface of the steel plate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C10/28
Inventor 白世海路庆华李旭东张忠慧
Owner 山西银圣科技有限公司
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