一种低铁损高韧性高硅硅钢的短流程制备方法
By combining vacuum refining and continuous casting with multi-pass annealing and rolling processes, the problems of compositional uniformity and toughness of high-silicon steel have been solved, enabling the production of ultra-thin strips with low iron loss and high toughness, which are suitable for high-efficiency and energy-saving electromagnetic devices such as high-frequency motors, high-frequency transformers and sensors.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- INNER MONGOLIA BAOTOU STEEL UNION
- Filing Date
- 2026-05-06
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies cannot simultaneously meet the requirements of high silicon steel in terms of compositional uniformity, low iron loss, high toughness, ultra-thin specifications, and short process and low cost. In particular, there is a problem that magnetic properties and mechanical properties are difficult to balance in high-efficiency and energy-saving electromagnetic devices such as high-frequency motors, high-frequency transformers, reactors, and sensors.
A short-process preparation method is adopted, which involves vacuum refining and continuous casting, slab homogenization annealing, rough rolling and intermediate billet preparation, one-pass warm rolling, multi-pass finishing rolling and multiple annealing. This method controls the uniform distribution of Si content, eliminates concentration gradients and brittle phases, improves plasticity and toughness, and is suitable for the production of ultra-thin strips.
It achieves uniform Si content distribution, reduces high-frequency iron loss, improves toughness and yield, and is suitable for stable production of high-end miniaturized devices. The process is shortened by more than 40% and energy consumption is reduced by 30%.