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公开(公告)号：US11486029B2
公开(公告)日：2022-11-01
申请号：US16490562
申请日：2018-02-12
发明人： Jiangang Li , Taisheng Yang , Hongbin Zhao , Chaoyong Yang , Yaohua Zhou , Qiang Huang
摘要： The invention is a precipitation-strengthened copper alloy, including the following components in percentage by weight: 80 wt %-95 wt % of Cu, 0.05 wt %-4.0 wt % of Sn, 0.01 wt %-3.0 wt % of Ni, 0.01 wt %-1.0 wt % of Si, and the balance of Zn and unavoidable impurities. According to the invention, the comprehensive performance of the alloy is improved by solution strengthening and precipitation strengthening; while the strength of the matrix is improved, the electrical conductivity of the alloy is hardly affected, the bending workability meets the requirements, and the stress relaxation resistance comparable to that of tin phosphor bronze is achieved. The comprehensive performance of the alloy of the invention is superior to that of the tin phosphor bronze C51900. Furthermore, the alloy of the invention is low in raw material cost, has obvious advantages in welding and plating.
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公开(公告)号：US11655524B2
公开(公告)日：2023-05-23
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.
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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.
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公开(公告)号：US20200071805A1
公开(公告)日：2020-03-05
申请号：US16490562
申请日：2018-02-12
发明人： Jiangang LI , Taisheng YANG , Hongbin ZHAO , Chaoyong YANG , Yaohua ZHOU , Qiang HUANG
摘要： The invention is a precipitation-strengthened copper alloy, including the following components in percentage by weight: 80 wt %-95 wt % of Cu, 0.05 wt %-4.0 wt % of Sn, 0.01 wt %-3.0 wt % of Ni, 0.01 wt %-1.0 wt % of Si, and the balance of Zn and unavoidable impurities. According to the invention, the comprehensive performance of the alloy is improved by solution strengthening and precipitation strengthening; while the strength of the matrix is improved, the electrical conductivity of the alloy is hardly affected, the bending workability meets the requirements, and the stress relaxation resistance comparable to that of tin phosphor bronze is achieved. The comprehensive performance of the alloy of the invention is superior to that of the tin phosphor bronze C51900. Furthermore, the alloy of the invention is low in raw material cost, has obvious advantages in welding and plating.
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公开(公告)号：US09803264B2
公开(公告)日：2017-10-31
申请号：US14417688
申请日：2014-01-26
发明人： Wensheng Sun , Shu Yang , Xing Yu , Dingyang Xu , Yongli Chen , Hongbo Zhou , Ming Zhang
摘要： The present invention relates to a high-plasticity free-cutting zinc alloy, which includes the following components in percentage of weight: 1-10% Cu, 0.1-3.0% Bi, 0.01-1.5% Mn, 0.001-1% Ti and/or 0.01-0.3% Zr, optional component X, optional component Y, and a remainder component being Zn having less than or equal to 0.01% unavoidable impurities, wherein component X amounts to 0-1.0% and includes at least one element selected from Cr, V, Nb, Ni and Co; and component Y amounts to 0-1.0% and includes at least one element selected from B, As, P and rare earth metal. Compared with existing zinc alloys, the present invention has good machinability, higher plasticity and improved processability, which can be widely used in F connectors, pen manufacturing, socket connectors, locks and etc.
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公开(公告)号：US20240035120A1
公开(公告)日：2024-02-01
申请号：US18337455
申请日：2023-06-20
申请人： NINGBO BOWAY ALLOY PLATE AND STRIP CO., LTD. , NINGBO POWERWAY ALLOY MATERIAL CO.,LTD. , NINGBO BOWAY NEW MATERIAL CO.,LTD
发明人： Xiangpeng Meng , Yongjun Pei , Jibao Li , Ning Li , Xuan Zhang , Ming Zhang , Renchang Hu , Lei Zhong
摘要： The invention provides a copper alloy strip, wherein the copper alloy comprises the following components in percentage by mass: 0.1 wt %-1.0 wt % of Cr, 0.01 wt %-0.2 wt % of Si, 0.01 wt %-1.0 wt % of X and the balance of Cu and inevitable impurities, wherein X is at least one of Fe, Ti, 5 Zr, Ag, Zn and Sn; on a section of the copper alloy strip perpendicular to a rolling direction, the number of second-phase particles having a particle size of 5 nm or below 5 nm is A, the number of second-phase particles having a particle size of 100 nm or above 100 nm is B, and A/B is greater than or equal to 3.
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公开(公告)号：US11255000B2
公开(公告)日：2022-02-22
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.
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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.
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公开(公告)号：US07628872B2
公开(公告)日：2009-12-08
申请号：US10572222
申请日：2004-06-11
申请人： Ming Zhang , Siqi Zhang , Jihua Cai , Haorong Lou , Xiao Xie
发明人： Ming Zhang , Siqi Zhang , Jihua Cai , Haorong Lou , Xiao Xie
CPC分类号： C22C9/04
摘要： A lead-free free-cutting copper-antimony alloy comprises in percentage by weight: 55 to 65% Cu, 0.3 to 2.0% Sb, 0.2 to 1.0% Mn, at least two elements selected from the group of Ti, Ni, B, Fe, Se, Mg, Si, Sn, P and rare-earth metal in amount of 0.1-1.0%, as well as balance Zn and unavoidable impurities. The brass alloys according to the present invention possess superior cutting property, weldability, corrosion resistance, dezincification resistance and high-temperature-oxidation resistance, and are suitable for use in drinking-water installations, domestic appliances, toy for children, fastener, etc. The process for producing such alloys is also proposed.
摘要翻译： 无铅自由切割铜 - 锑合金包含重量百分比：55至65％的Cu，0.3至2.0％的Sb，0.2至1.0％的Mn，至少两种选自Ti，Ni，B， Fe，Se，Mg，Si，Sn，P和稀土金属，以及平衡Zn和不可避免的杂质。 本发明的黄铜合金具有优异的切割性，焊接性，耐腐蚀性，耐脱锌性和耐高温氧化性，适用于饮用水设备，家用电器，儿童玩具，紧固件等。 还提出了生产这种合金的方法。
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