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:
Sep. 24, 2019
Filed:
Jul. 27, 2017
Applicant:
Ihi Corporation, Koto-ku, JP;
Inventors:
Assignee:
IHI Corporation, Koto-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
B22D 27/20 (2006.01); B22D 21/00 (2006.01); C22C 1/02 (2006.01); C22C 19/05 (2006.01); F04D 29/38 (2006.01); F01D 5/28 (2006.01); B22D 27/04 (2006.01);
U.S. Cl.
CPC ...
B22D 27/20 (2013.01); B22D 21/00 (2013.01); B22D 21/005 (2013.01); B22D 27/045 (2013.01); C22C 1/02 (2013.01); C22C 19/05 (2013.01); F01D 5/28 (2013.01); F04D 29/38 (2013.01); F05D 2230/21 (2013.01); F05D 2300/177 (2013.01);
Abstract
A method of manufacturing a Ni alloy casting, includes a casting step of casting molten Ni alloy by pouring the molten Ni alloy into a cavity of a mold, a columnar grain forming step of forming columnar grain by solidifying the molten Ni alloy while drawing the mold, in which the molten Ni alloy has been poured, at a drawing speed of 100 mm/hour or more but 400 mm/hour or less with a temperature gradient provided to a solid-liquid interface, and an equiaxed grain forming step of forming equiaxed grain by solidifying the molten Ni alloy while drawing the mold at a drawing speed of 1000 mm/minute or more continuously after the columnar grain forming step.