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:
Jul. 20, 2021
Filed:
Jan. 02, 2018
Applicant:
Champ Tech Optical (Foshan) Corporation, Foshan, CN;
Inventors:
Assignee:
CHAMP TECH OPTICAL (FOSHAN) CORPORATION, Foshan, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22F 7/06 (2006.01); B22F 5/10 (2006.01); B22F 3/22 (2006.01); B23K 20/10 (2006.01);
U.S. Cl.
CPC ...
B22F 7/062 (2013.01); B22F 3/225 (2013.01); B22F 5/10 (2013.01); B22F 5/106 (2013.01); B23K 20/10 (2013.01);
Abstract
A method for manufacturing hollow and other metal products of irregular shape provides metal powder and binding agent, and the two are feed-mixed and heated to a plastic state. The feed-mix is injected in a mold cavity of a first injection mold to form a first blank, and injected in a mold cavity of a second injection mold to form a second blank. The first blank and the second blank are welded together to form a built-up blank which is degreased to remove the binding agent therein. The degreased built-up blank is sintered to obtain the metal product of irregular shape.