The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 28, 2017
Filed:
Apr. 28, 2011
Wangya Huang, Shanghai, CN;
Guobao LI, Shanghai, CN;
Xinqiang Zhang, Shanghai, CN;
Xing Mao, Shanghai, CN;
Wanqing Guo, Shanghai, CN;
Jianru Zhu, Shanghai, CN;
Banglin Xiang, Shanghai, CN;
Wangya Huang, Shanghai, CN;
Guobao Li, Shanghai, CN;
Xinqiang Zhang, Shanghai, CN;
Xing Mao, Shanghai, CN;
Wanqing Guo, Shanghai, CN;
Jianru Zhu, Shanghai, CN;
Banglin Xiang, Shanghai, CN;
Abstract
A fast-speed laser scoring method is provided, in which a set of related laser scoring device is used to simultaneously score lines on the upper surface and the lower surface of an oriented silicon steel strip, which is being fed and traveling forwards on a production line, with high-focalized continuous wave laser beam; the lines scored on the upper surface and the lines scored on the lower surface have the same space between every two adjacent scored lines but are staggered each other in order to reduce iron loss evenly. The space between every two adjacent scored lines on the same surface is 6-12 mm, laser power is 1000-3000 W and scanning speed is 100-400 m/min. The machining rate of the scoring method and device attains 1.5-2 times the one of conventional scoring methods which can not simultaneously score the upper and lower surfaces of a steel strip at a time. The lines scored on a steel strip by the method can reduce iron loss of the strip by 10-16%.