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.

Date of Patent:
Nov. 14, 2023

Filed:

Sep. 14, 2022
Applicant:

North University of China, Taiyuan, CN;

Inventors:

Zhimin Zhang, Taiyuan, CN;

Jianmin Yu, Taiyuan, CN;

Zhen Wang, Taiyuan, CN;

Zhe Cheng, Taiyuan, CN;

Mei Cheng, Taiyuan, CN;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 22/02 (2006.01); C22F 1/06 (2006.01);
U.S. Cl.
CPC ...
B21D 22/022 (2013.01); C22F 1/06 (2013.01);
Abstract

The present disclosure discloses a method for preparing large-size rare earth magnesium alloy with high-performance ingots by short process severe plastic deformation. When in use, the pushing cylinder moves upward, and the back pressure plate is adjusted to the outlet of the extrusion deformation area. After the male mold stroke is completed, the recoverable discard block fills the extrusion deformation area, and the upsetting extrusion deformation is completed. Then, the pushing cylinder drives the back pressure plate to remove from the lower part of the lower mold cavity downward, and the recoverable discard block has been broken due to the high pressure. Then, the extruded blank and residual block powder are taken out from the lower part of the lower mold cavity, restored into a plate shape for the next use. The present disclosure can solve the tail shrinking phenomenon, save materials and increase the strengthening effect.


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