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:
Jun. 21, 2005
Filed:
Jun. 13, 2003
Tadashi Kitudo, Sakai, JP;
Mamoru Takemura, Tondabayashi, JP;
Mituaki Matumuro, Kashihara, JP;
Hideto Matumoto, Settsu, JP;
Takao Horie, Gifu, JP;
Kazumichi Shimizu, Oita, JP;
Tadashi Kitudo, Sakai, JP;
Mamoru Takemura, Tondabayashi, JP;
Mituaki Matumuro, Kashihara, JP;
Hideto Matumoto, Settsu, JP;
Takao Horie, Gifu, JP;
Kazumichi Shimizu, Oita, JP;
Osaka Prefecture, Osaka, JP;
Kabushiki Kaisha Sankyogokin Chuzoasho, Osaka, JP;
Okamoto Co., Ltd., Gifu, JP;
Abstract
The purpose of the present invention is to provide high manganese cast iron containing spheroidal vanadium carbide and method for making which is nonmagnetic as well as superior mechanical properties such as wear-resistance and toughness, and further does not require a water toughing heat treatment which has been needed when nonmagnetic high manganese steel (high manganese cast steel) is obtained by crystallized spheroidal vanadium in austenite matrix, and the high manganese cast iron containing spheroidal vanadium carbide is comprised of C 1.5˜4.0 weight %, V 6˜15 weight %, Si 0.2˜4.0 weight %, Mn 10˜18 weight %, Mg 0.01˜0.1 weight %, remaining iron (Fe) and inevitable impurities, spheroidal vanadium carbide is crystallized within a structure.