Patent · US Active

Method for producing silicon steel normalizing substrate

US9822423B2 · kind B2 · utility

0Cited by

14References

13Claims

0Family size

Assignee

BAOSHAN IRON & STEEL CO., LTD. · CN

Inventors

Hongxu Hei · Shanghai, CN
Bo Wang · Shanghai, CN
Shishu Xie · Shanghai, CN
Xiandong Liu · Shanghai, CN
Guohua Yang · San Jose, US
Yongjie Yang · Shanghai, CN
Aihua Ma · Shanghai, CN
Xiaolin Li · San Diego, US
Liang Zou · Beijing, CN
Huawei Zhang · Xiamen, CN

Key dates

Filing date	Mar 26, 2012
Grant date	Nov 21, 2017
Priority date	—
Expiry date	Nov 26, 2033

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC21D8/1233
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A method for producing a silicon steel normalizing substrate comprises: steelmaking, hot rolling and normalizing steps. The normalizing step uses a normalizing furnace having a nonoxidizing heating furnace section. The nonoxidizing heating furnace section comprises more than 3 furnace zones. An energy investment ratio of the furnace zones used in the nonoxidizing heating furnace section is adjusted, so as to control an excess coefficient α of the nonoxidizing heating furnace section to be within a range of 0.8≦α<1.0.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.