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:
Oct. 13, 2020
Filed:
Mar. 19, 2018
Applicant:
Shinagawa Refractories Co., Ltd., Tokyo, JP;
Inventors:
Erika Nakatani, Tokyo, JP;
Yukimasa Iwamoto, Tokyo, JP;
Assignee:
SHINAGAWA REFRACTORIES CO., LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B22D 11/111 (2006.01); C21C 7/076 (2006.01); C09K 5/18 (2006.01); B22D 11/108 (2006.01); B22F 9/02 (2006.01);
U.S. Cl.
CPC ...
B22D 11/111 (2013.01); B22D 11/108 (2013.01); B22F 9/026 (2013.01); C09K 5/18 (2013.01); C21C 7/076 (2013.01);
Abstract
A method of producing an exothermic mold powder in a form of sprayed granules of the present invention includes spray-drying into granules, an aqueous slurry containing: a raw material blend; and a metal silicon powder and/or a silicon alloy powder, the method comprising adjusting the pH of the aqueous slurry to 13 or less.