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Novel cold-rolled silicon steel sheet manufacturing method

A new type of technology for silicon steel sheet, which is applied to the device for coating liquid on the surface, polycarbonate coating, surface pretreatment, etc., can solve the problems of uneven performance level of silicon steel sheet processing technology and complex composition of semi-inorganic coating, etc. Achieve outstanding adhesion performance, excellent punching and shearing processability, and improve performance and service life.

Inactive Publication Date: 2014-12-10
TAICANG WUFENG METAL PROD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, international silicon steel sheet manufacturers usually use more semi-inorganic coatings. However, the composition of semi-inorganic coatings is complex and diverse, resulting in uneven processing performance of silicon steel sheets. Therefore, semi-inorganic coatings The composition and preparation process need to be further improved

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  • Novel cold-rolled silicon steel sheet manufacturing method

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Embodiment 1

[0017] The specific preparation process of the novel cold-rolled silicon steel sheet that the present invention mentions is as follows:

[0018] a) Pretreatment of organic resin powder, organic resin powder is made of polystyrene and its copolymer, the average particle diameter of the powder is about 3um; the auxiliary agent used in powder pretreatment is anionic dispersion accelerator, treatment The equipment is a ball mill, and the organic resin powder and additives are mixed according to the ratio of 100:2.5. The temperature of the barrel of the ball mill is controlled at 70°C-80°C, and the ball milling time is about 1.5-2 hours;

[0019] b) Prepare semi-inorganic coatings. The main components of the coatings and their ratios are: 80 parts of organic resin, 100 parts of inorganic salt solution, and 15 parts of organic resin powder; the organic resin in the coating is acrylic resin; the inorganic salt solution is selected to contain Calcium phosphate solution; the organic re...

Embodiment 2

[0025] The specific preparation process of the novel cold-rolled silicon steel sheet that the present invention mentions is as follows:

[0026] a) Pretreatment of organic resin powder, organic resin powder is made of polystyrene and its copolymer, the average particle diameter of the powder is about 3um; the auxiliary agent used in powder pretreatment is anionic dispersion accelerator, treatment The equipment is a ball mill, and the organic resin powder and additives are mixed according to the ratio of 100:2.5. The temperature of the barrel of the ball mill is controlled at 70°C-80°C, and the ball milling time is about 1.5-2 hours;

[0027] b) Prepare semi-inorganic coatings. The main components of the coatings and their ratios are: 90 parts of organic resin, 105 parts of inorganic salt solution, and 10 parts of organic resin powder; the organic resin in the coating is the polymerization of acrylic resin and polycarbonate body; the inorganic salt solution is selected from mag...

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Abstract

The invention discloses a novel cold-rolled silicon steel sheet manufacturing method. The manufacturing method includes the following steps that first, organic resin powder is preprocessed; second, semi-inorganic paint is prepared; third, mechanical coating is performed; fourth, baking is performed for drying; fifth, silicon steel sheets are post-treated. The novel cold-rolled silicon steel sheet manufacturing method is reasonable in working procedure arrangement, simple, convenient to operate and moderate in cost. The prepared semi-inorganic coating is high in strength and stable in performance, the performance of adhesion between the semi-inorganic coating and the silicon steel sheets is prominent, so that the silicon steel sheets have better punching shear machinability, weldability, oil resistivity, high temperature resistance and other properties, the using performance of the silicon steel sheets is greatly improved, and the service life of the silicon steel sheets is greatly prolonged.

Description

technical field [0001] The invention relates to a preparation method of a cold-rolled silicon steel sheet, in particular to a preparation method of a novel cold-rolled silicon steel sheet with stable insulation performance and excellent process performance, and belongs to the technical field of electronic materials. Background technique [0002] Silicon steel sheet is a ferrosilicon alloy with a silicon content of 3%-5%. It is an indispensable and important soft magnetic alloy in the electric power, electronics and military industries. It is also the metal functional material with the largest output. It is mainly used for various motors, generators and Transformer core. The production process of silicon steel sheets is complicated and the manufacturing technology is strict. Foreign production technologies are protected in the form of patents, which are regarded as the life of the enterprise. [0003] When manufacturing motors, household appliances and transformer cores, sil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B05D7/14B05D3/02C09D133/00C09D169/00C09D7/12
Inventor 潘华锋
Owner TAICANG WUFENG METAL PROD