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:
Jun. 09, 2015
Filed:
Sep. 27, 2012
Advanced Technology & Materials Co., Ltd., Beijing, CN;
Shaoxiong Zhou, Beijing, CN;
Guodong Liu, Beijing, CN;
Wenzhi Chen, Beijing, CN;
Lidong Ding, Beijing, CN;
Jian Wang, Beijing, CN;
Quan Li, Beijing, CN;
Zhiying Zhang, Beijing, CN;
Pei Zhao, Beijing, CN;
ADVANCED TECHNOLOGY & MATERIALS CO., LTD., Beijing, CN;
Abstract
The invention belongs to the technical field of rapid solidification of amorphous alloy and concretely relates to an iron-based amorphous alloy broad ribbon, wherein the width is 220-1000 mm, the thickness is 0.02-0.03 mm, the transversal thickness deviation is smaller than +/−0.002 mm, the lamination factor is larger than 0.84, the saturation magnetic-flux density is larger than 1.5 T, the iron loss is smaller than 0.20 W/kg under the conditions that the frequency is 50 Hz and the maximum magnetic-flux density is 1.3 T, and the exciting power is smaller than 0.50 VA/kg. The invention also relates to a manufacturing method of the broad ribbon, and a single-roll quenching method is adopted, wherein the width of a nozzle slot is 0.4-0.7 mm, the transversal width deviation of the nozzle slot is smaller than +/−0.05 mm, the transversal flatness deviation of a cooling roll () is smaller than 0.02 mm, and the surface roughness Ra is smaller than 0.0005 mm.