Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Coating for chromium-free oriented electromagnetic steel plate, preparation method thereof, and preparation method of chromium-free oriented electromagnetic steel plate with coating

A technology for electromagnetic steel plates and coatings, applied in the direction of metal material coating process, coating, manufacturing tools, etc., can solve the problems of corrosion resistance, poor tension, hazards, etc., and achieve improved water resistance, good moisture absorption resistance, and low pollution. Effect

Pending Publication Date: 2021-05-25
NANJING BAOCHUN NEW MATERIAL TECH CO LTD
View PDF15 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] The technical problem to be solved: the hexavalent chromium in the existing paint will cause serious harm to the environment and the human body, and the moisture absorption resistance and heat resistance of the phosphate-silicon dioxide system paint that does not contain hexavalent chromium when forming a coating , corrosion resistance, poor tension and other technical problems, the present invention provides a coating for chromium-free oriented electrical steel sheet, its preparation method and a preparation method of coated chromium-free oriented electrical steel sheet, the preparation method is environmentally friendly, It can meet the requirements of large-scale production, the prepared coating does not contain chromium, has good stability and applicability, and the coating of the present invention can make the surface coating of the oriented electrical steel sheet have good moisture absorption resistance, corrosion resistance, Heat resistance, tension effect and anti-sticking properties

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Coating for chromium-free oriented electromagnetic steel plate, preparation method thereof, and preparation method of chromium-free oriented electromagnetic steel plate with coating
  • Coating for chromium-free oriented electromagnetic steel plate, preparation method thereof, and preparation method of chromium-free oriented electromagnetic steel plate with coating
  • Coating for chromium-free oriented electromagnetic steel plate, preparation method thereof, and preparation method of chromium-free oriented electromagnetic steel plate with coating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be further explained and illustrated below in conjunction with specific embodiments, however, the explanation and illustration do not constitute undue limitations on the technical solution of the present invention.

[0024] Examples and comparative examples

[0025]The present invention is a coating for chromium-free oriented electrical steel sheets. The raw materials of the coating are as follows: 100 parts of phosphate, 60-120 parts of silica sol, 5-50 parts of tin oxide sol, 2-40 parts of boric acid and 0.5- 10 parts of silica powder.

[0026] The specific preparation method is as follows: mechanically disperse or ultrasonically disperse the silica powder in all or part (it should be noted here that the dispersion in all or part of the colloidal silica is for the convenience of actual storage and transportation, and the actual amount added How much has little effect on the performance of the final coating) colloidal silica to form a stable...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses coating for a chromium-free oriented electromagnetic steel plate, a preparation method thereof and a preparation method of the chromium-free oriented electromagnetic steel plate with a coating, and belongs to the technical field of oriented electromagnetic steel plates. The coating comprises the following components in parts by mass: 100 parts of phosphate, 60-120 parts of silicon dioxide sol, 5-50 parts of tin oxide sol, 2-40 parts of boric acid and 0.5-10 parts of silicon dioxide powder. The preparation method disclosed by the invention is environment-friendly and can meet the requirements of large-scale production, the prepared coating does not contain chromium and has good stability and coating property, and the coating disclosed by the invention can enable a surface coating of the oriented electromagnetic steel plate to have good moisture absorption resistance, corrosion resistance, heat resistance, tension effect and sheet sticking resistance.

Description

technical field [0001] The invention belongs to the technical field of oriented electrical steel sheets, and in particular relates to a coating for chromium-free oriented electrical steel sheets, a preparation method thereof, and a preparation method of coated chromium-free oriented electrical steel sheets. Background technique [0002] Phosphate inorganic coatings have good film-forming properties, high temperature resistance, low price, excellent corrosion resistance and electrical insulation, and are widely used in the manufacture of insulating coatings on the surface of steel plates. Phosphate inorganic coatings are mainly composed of phosphate, filler and curing agent. Phosphate is a film-forming substance by forming a network structure during heating. Fillers mainly include silica, alumina, chromium oxide, titanium dioxide, etc., which can improve the heat resistance of the coating and improve cracks. Curing agents can lower the film-forming temperature of phosphate ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09D1/00C09D7/61C21D1/26C21D6/00C21D8/02C21D9/00C22C38/02C22C38/04C22C38/06C23C8/26
CPCC09D1/00C21D1/26C21D6/005C21D6/008C21D8/0221C21D9/0081C22C38/001C22C38/002C22C38/02C22C38/04C22C38/06C23C8/26C09D7/61
Inventor 杨纲杨莲龙刘玥吴世旺
Owner NANJING BAOCHUN NEW MATERIAL TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com