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:
Mar. 08, 2005
Filed:
Sep. 06, 2002
Applicants:
Masayuki Tsuchiya, Wako, JP;
Hiroaki Ueno, Wako, JP;
Inventors:
Masayuki Tsuchiya, Wako, JP;
Hiroaki Ueno, Wako, JP;
Assignee:
Honda Giken Kogyo Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C038/02 ; C22C038/34 ; C22C037/10 ; C22C033/08 ;
U.S. Cl.
CPC ...
Abstract
An iron based alloy material for a thixocasting process and a method for casting the material which extends the service life of dies by inhibiting solidification contraction, and in which casting defects such as size variations and cracks can be inhibited. The material comprises 1.6 wt %≦C≦2.5 wt % and 3.0 wt %<Si≦5.5 wt %, and a carbon equivalent (the value of CE) defined as 'C(wt %)+⅓Si(wt %)' of 2.9 to 3.5. This material is made to be in a half-melted state with 35 to 50 wt % of a solid phase to be cast under a pressure load.