Abstract: With the rapid development of new energy vehicles, smart grids, and renewable energy, the demand for low⁃iron⁃loss silicon steel has been continuously increased by the market. The thinning of silicon steel thickness is regarded as an irreversible trend in product development, while greater challenges are posed to production processes by this thickness reduction. In recent years, the preparation and development of thin⁃gauge silicon steel have become a research focus. The production processes for thin⁃gauge silicon steel were summarized in this paper: oriented silicon steel is divided into primary recrystallization, secondary recrystallization, tertiary recrystallization, and twin⁃roll thin⁃strip continuous casting methods; non⁃oriented silicon steel is categorized into conventional processing, asynchronous rolling, twin⁃roll thin⁃strip continuous casting, and planar flow casting methods. Meanwhile, the current production status of thin⁃gauge silicon steel was introduced and future development directions were proposed, which can provide references for the research and development of thin⁃gauge silicon steel.

Key words: thin specification, extremely thin, ultra?thin, silicon steel, production technology