-
公开(公告)号：US20210062301A1
公开(公告)日：2021-03-04
申请号：US16487428
申请日：2018-09-04
发明人： Chaoyong YANG , Ning LI , Jiangang LI , Hongbin ZHAO , Taisheng YANG , Yaohua ZHOU
摘要： The invention is a copper alloy with excellent comprehensive performance, including the following components in percentage by weight: 0.4 wt %-2.0 wt % of Ni, 0.2 wt %-2.5 wt % of Sn, 0.02 wt %-0.25 wt % of P, 0.001 wt %-0.5 wt % of Si, and the balance of Cu and unavoidable impurities. The copper alloy has a yield strength of 550 MPa or above, and an electrical conductivity of 38% IACS or above. A bending workability is as follows: the value of R/t in the GW direction is less than or equal to 1, and the value of R/t in the BW direction is less than or equal to 2; and after the copper alloy is kept at 150° C. for 1000 hours, a residual stress rate is greater than or equal to 75%, and the stress relaxation resistance is excellent.
-
公开(公告)号：US20210147961A1
公开(公告)日：2021-05-20
申请号：US16607720
申请日：2018-07-19
发明人： Chaoyong YANG , Jiangang LI , Ning LI , Taisheng YANG , Hongbin ZHAO , Yaohua ZHOU
IPC分类号： C22C9/04
摘要： The present invention discloses a copper alloy, which includes: 5 wt % to 15 wt % of Zn, 0.2 wt % to 2.5 wt % of Sn, 0.1 wt % to 2.0 wt % of Ni, 0.01 wt % to 0.3 wt % of P, 0 to 0.3 wt % of Mg, 0 to 0.5 wt % of Fe, and a balance of Cu and inevitable impurities. Preferably, it is controlled that 1.0 wt %≤Ni+Sn≤3.5 wt %, the weight ratio of Ni to Sn is 0.08 to 10; the weight ratio of Ni to P is 2 to 15, Ni and P form a NiP compound in a matrix. During the crystal orientation analysis using EBSD measurement, the area in a Brass orientation {011} at a derivation angle of less than 15° accounts for 10% to 25%. The yield strength 600 MPa, the electrical conductivity is ≥25% IACS, and the bending machinability is excellent because the value R/t in a GW direction is ≤1 and the value R/t in a BW direction is ≤2.
-
搜索结果
2 条记录 (耗时 0.012 秒)
