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. 28, 2019
Filed:
Mar. 01, 2018
Applicant:
Hitachi Metals, Ltd., Tokyo, JP;
Inventors:
Masatsugu Uchida, Kitakyusyu, JP;
Kiyoshi Furushima, Kitakyusyu, JP;
Assignee:
HITACHI METALS, LTD., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B22D 13/02 (2006.01); B22D 17/20 (2006.01); B22D 19/08 (2006.01); B22D 21/00 (2006.01); B22D 21/06 (2006.01); B22D 23/06 (2006.01); B22F 1/00 (2006.01); B29C 33/38 (2006.01); B29C 45/62 (2006.01); C22C 19/00 (2006.01); C22C 19/03 (2006.01); C22C 19/05 (2006.01); C22C 29/08 (2006.01); C22C 32/00 (2006.01); B29C 47/66 (2006.01); B29L 31/00 (2006.01);
U.S. Cl.
CPC ...
B22D 13/02 (2013.01); B22D 17/2023 (2013.01); B22D 19/08 (2013.01); B22D 21/005 (2013.01); B22D 21/06 (2013.01); B22D 23/06 (2013.01); B22F 1/0003 (2013.01); B29C 33/38 (2013.01); B29C 45/62 (2013.01); C22C 19/007 (2013.01); C22C 19/03 (2013.01); C22C 19/056 (2013.01); C22C 19/057 (2013.01); C22C 19/058 (2013.01); C22C 29/08 (2013.01); C22C 32/0052 (2013.01); B22F 2302/10 (2013.01); B22F 2302/45 (2013.01); B22F 2304/10 (2013.01); B29C 47/66 (2013.01); B29K 2905/00 (2013.01); B29L 2031/757 (2013.01);
Abstract
A molding machine cylinder comprising a lining layer having a structure comprising 20-50% by area of tungsten carbide particles and 1-10% by area of tungsten-based metal carboboride particles in a nickel-based alloy matrix, and containing 1-7.5% by mass of Fe, can be produced by a centrifugal casting method comprising a first step of heating at higher than 1140° C. and lower than 1200° C., and a second step of heating at 1080-1140° C. after melting the raw material powder.