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:
May. 20, 2025
Filed:
Apr. 29, 2022
Fine grain rare earth alloy cast strip, preparation method thereof, and a rotary cooling roll device
Beijing Zhong KE San Huan Hi-tech Co., Ltd., Beijing, CN;
Wei Zhu, Beijing, CN;
E Niu, Beijing, CN;
Zhian Chen, Beijing, CN;
Xuanzhang Ye, Beijing, CN;
Fei Du, Beijing, CN;
Zhan Wang, Beijing, CN;
Xiaolei Rao, Beijing, CN;
Boping Hu, Beijing, CN;
BEIJING ZHONG KE SAN HUAN HI-TECH CO., LTD., Beijing, CN;
Abstract
An alloy cast strip preparation method includes a melting process and a casting cooling process. The melting process includes controlling a power of an induction melting furnace to perform a cyclic heat treatment to completely melt an alloy raw material before a surface temperature of a melt obtained by melting the alloy raw material is raised to 1300° C., and, after the alloy raw material is melted, adjusting the power of the induction melting furnace to stabilize the surface temperature of the melt at a temperature in a range from 1400° C. to 1500° C. The casting cooling process includes performing casting cooling on the melt arranged on a surface of a rotary cooling roll to obtain an alloy cast strip while controlling a surface linear velocity of the rotary cooling roll to be from 1.5 m/s to 2.25 m/s.