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. 26, 2018
Filed:
Apr. 08, 2013
Kitz Corporation, Chiba, JP;
Hidenobu Tameda, Nagano, JP;
Hisanori Terui, Nagano, JP;
Kei Ito, Nagano, JP;
Tomoyuki Ozasa, Nagano, JP;
KITZ CORPORATION, Chiba, JP;
KITZ METALWORKS CORPORATION, Nagano, JP;
Abstract
Provided is a brass alloy excellent in recyclability and corrosion resistance while avoiding the addition of Bi and Si, and with which machinability is ensured and processing is facilitated with preventing inclusion of lead. The present invention includes at least 58.0 to 63.0 mass % of Cu, 1.0 to 2.0 mass % of Sn and 0.05 to 0.29 mass % of Sb and the remainder composed of Zn and unavoidable impurities. With the present invention, stress corrosion crack resistance and machinability are improved. 0.05 to 1.5 mass % of Ni is included in a copper alloy to improve stress corrosion crack resistance as a result of the interaction between Ni and Sb. Furthermore, 0.05 to 0.2 mass % of P is included to improve anti-dezincification properties.