In this paper, creep tests were carried out on annealed pure copper and normalized bronze containing Al under static and cyclic tension at room temperature. 以退火纯铜及正火铝青铜在轴向拉伸下进行室温静、动态蠕变试验。
The electric-conductivity coefficient of Mo/ Cu FGM attained 27% international annealed copper standard ( IACS), and the thermal-coefficient of third and fourth layer were 204.76 and 249.71? Mo/CuFGM电导率为国际退火铜标准(IACS)的27%.第3层、第4层的热导率分别为204.76和249.71W。
The causes for the defects on annealed copper wires produced on medium wire drawing machines are investigated and the measures for improving equipment and process as well as circulating cooling system for annealing are presented accordingly. 本文分析了中拉机退火铜线产品质量缺陷产生的原因,并提出了相应的工艺、工装改进措施,对中拉机退火冷却循环系统进行改进。
X-ray diffraction was used to estimate the grain size of the annealed nc copper. X-射线衍射(XRD)的方法用来估算纳米晶铜晶粒尺寸。
The tensile strength of drawing wire can reach 1421 MPa. And the highest relative conductivity can reach 30% IACS ( International Annealed Copper Standard). The effects of cold drawing on the properties of electrode wire have been investigated. 拉制硬态电极线抗拉强度可达1421MPa,相对导电率最高可达30%IACS(国际退火(软)铜标准)。
The results show that the ECP of the annealed copper alloys for lead frames can be predicted by the model. 结果表明,在试验范围内,模糊控制对引线框架铜合金时效后导电性能的预测是可行的。