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. 18, 2002
Filed:
Feb. 26, 2001
Yutaka Kawano, Uji City, Kyoto, JP;
Shigenori Nishiuchi, Kuzuha, Hirakata City, Osaka, JP;
Satoru Yamamoto, Ichijoji, Sakyo-ku, Kyoto City, Kyoto, JP;
Seisuke Sugahara, Higashi-osaka City, Osaka, JP;
Toshiyuki Kikuchi, Higashi, Toyonaka-city, Osaka, JP;
Other;
Abstract
The present invention relates to stainless spheroidal carbide cast iron is such: comprises Fe as its main component;, C 0.6˜4.0% and V 4˜15% as its necessary components, P 0.01˜0.15%, S 0.01˜0.05%, and Al 0.05˜1.0% as bubble assistants, and Ni 4˜15%, Si 0.2˜4.5%, Cr 13˜30%, and Mn 0.2˜1.5% as anticorrosion matrix formers in weight %; produced by the process that minute spheroidal space of gas (hydrogen) bubble is dispersed substantially equally into molten metal positively by high temperature melting at 1950˜2073 K which is the bubbling reaction temperature, and spheroidal vanadium carbide of a covalent bond is crystallized inside of the spheroidal space, which has special characteristics such as corrosion-resistance, heat-resistance, abrasion-resistance, toughness and processing ability. Such improving its characteristics such as heat-resistance and corrosion-resistance can be applied within a wide areas of industries such as chemical industry, machinery, shipping and petrochemical industry which efficiency and functions are getting high in accordance with the development of the industries.