{"id":2702,"date":"2026-09-14T06:17:55","date_gmt":"2026-09-14T06:17:55","guid":{"rendered":"https:\/\/www.jycomat.com\/?p=2702"},"modified":"2026-09-14T06:17:56","modified_gmt":"2026-09-14T06:17:56","slug":"production-process-of-grain-oriented-silicon-steel","status":"publish","type":"post","link":"https:\/\/www.jycomat.com\/ro\/production-process-of-grain-oriented-silicon-steel\/","title":{"rendered":"Production Process of Grain-Oriented Silicon Steel"},"content":{"rendered":"

The production process of grain-oriented o\u021bel siliconic<\/a> mainly covers smelting, hot rolling, cold rolling, annealing and coating. Magnetic performance is improved by precise control of grain orientation, and this process determines the material\u2019s service performance in electromagnetic equipment such as transformers.<\/p>\n

I. Production Process Procedures<\/h2>\n

1. Smelting<\/h3>\n

Smelting is the initial working stage, which requires strict control over silicon content and impurity ratios. The silicon content is maintained at approximately 3%; excessively high silicon impairs subsequent machinability, while insufficient silicon leads to poor magnetic properties. Harmful elements including sulfur and phosphorus are minimized to guarantee molten steel purity. The primary difficulty of this stage lies in compositional homogeneity. Even if laboratory sampling tests pass, segregation may still occur during actual casting. Vacuum degassing and electromagnetic stirring technologies are widely adopted at present to mitigate this issue.<\/p>\n

2. Hot Rolling<\/h3>\n

Steel slabs are heated to around 1200 \u00b0C and rolled into 2\u20133 mm thick coils. Austenite grains rearrange at high temperatures to form primary {110} texture, which lays the foundation for generating Goss texture in subsequent processes. Temperature regulation is critical: overheating triggers oversized grains, whereas insufficient temperature drastically increases deformation resistance. Most modern production lines adopt segmented rolling temperature control, limiting the temperature difference between strip head and tail within 30 \u00b0C.<\/p>\n

3. Cold Rolling & Annealing<\/h3>\n

Multi-pass cold rolling combined with intermediate annealing reduces strip thickness to 0.23\u20130.35 mm. Each rolling pass adopts a reduction rate of roughly 50%; excessive reduction will disrupt the texture structure. Annealing serves as the core procedure: decarburization annealing thoroughly eliminates carbon, and secondary recrystallization annealing uses inhibitors such as MnS and AlN to drive Goss texture grains to swallow grains with other orientations. The final finished product achieves a Goss texture proportion exceeding 80%.<\/p>\n

\"O\u021bel<\/h2>\n

II. Application and Material Selection<\/h2>\n

Magnetic anisotropy makes grain-oriented o\u021bel siliconic<\/a> ideal for transformer cores. Apart from thickness, two core indicators shall be prioritized during selection: magnetic induction B8 (magnetic induction under magnetic field strength of 800 A\/m) and core loss P1.7\/50 (specific loss per unit mass at 1.7 T and 50 Hz). Magnetic performance of the same grade may fluctuate by around 5% across different batches. Incoming inspection is recommended for core equipment.<\/p>\n

Every link of grain-oriented o\u021bel siliconic<\/a> production, from composition control to texture optimization, targets superior magnetic performance. Such sophisticated precision control explains why its price is two to three times higher than non-oriented silicon steel.<\/p>","protected":false},"excerpt":{"rendered":"

The production process of grain-oriented silicon steel mainly covers smelting, hot rolling, cold rolling, annealing and coating. Magnetic performance is improved by precise control of grain orientation, and this process determines the material\u2019s service performance in electromagnetic equipment such as transformers. I. Production Process Procedures 1. Smelting Smelting is the initial working stage, which requires […]<\/p>\n","protected":false},"author":1,"featured_media":2231,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[5],"tags":[43],"class_list":["post-2702","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-silicon-steel"],"acf":[],"yoast_head":"\nProduction Process of Grain-Oriented Silicon Steel - Zhongtong Weiye<\/title>\n<meta name=\"description\" content=\"Production Process of Grain-Oriented Silicon Steel Read this article to learn about Silicon Steel . 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