Mauriel Kapouytian Woods LLP
Oxide dispersion-strengthened alloy (ODS), lead-free and free-cutting brass and producing method thereof
Oxide dispersion-strengthened alloy (ODS), lead-free and free-cutting brass and producing method thereof. The mass percent of components in the brass are: 52.0%-90.0% of copper, 0.001%-0.99% of phosphorus, 0.15%-0.70% of tin, 0.25%-3.0% of manganese, 0.15%-0.90% of aluminum, 0.10%-1.5% of nickel, 0.191%-0.90% of oxygen, and 0.06%-0.80% of carbon, the ratio of aluminum to oxygen not exceeding 27:24, with the balance being zinc and inevitable impurities, wherein lead is not more than 0.08%. The brass is produced by a powder metallurgy method: brass powder, copper oxide powder, and graphite micro powder are mixed evenly; 0.001%-1.5% of a forming agent is added and mixed evenly with the mixture; and then molded by compression, and sintering are performed before post-treatment.
Hunan Terry New Materials Company Ltd.
B C C C B C B B C
B22F C22C C22C C22C B22F C22C B22F B22F C22C
inventional inventional inventional additional additional inventional additional additional additional
Wei Bin Jinsong Ziyang Xin Shun Zhongling
Li Liu Huang Gan Jin Li Zhang