取向硅钢及其制造方法
By optimizing the laser processing and insulating coating of silicon steel substrates, the magnetostriction and iron loss problems of oriented silicon steel were solved, enabling the manufacture of low-noise transformer cores and improving production stability and consistency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- BAOSHAN IRON & STEEL CO LTD
- Filing Date
- 2022-06-29
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies are insufficient to effectively reduce magnetostriction and iron loss in grain-oriented silicon steel, resulting in high transformer noise levels. Furthermore, existing methods exhibit poor stability and consistency during the production process.
By laser processing the silicon steel substrate under nitrogen protection, the embedded layer and continuous layer are removed, and an insulating coating is formed on the surface. An insulating coating liquid with a specific chemical composition is used to control the surface roughness and laser parameters, ensuring the adhesion of the insulating coating and the stacking factor.
This invention achieves low iron loss, low magnetostriction, high lamination factor, and excellent adhesion of insulating coatings in grain-oriented silicon steel, thereby reducing the noise level of transformers and improving the stability and consistency of the production process.
Smart Images
Figure CN117344210B_ABST