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    • 1. 发明授权
    • Copper base alloys and terminals using the same
    • 铜基合金和使用其的端子
    • US5387293A
    • 1995-02-07
    • US36489
    • 1993-03-24
    • Takayoshi EndoKenji TakenouchiMikio NishihataToshio AsanoAkira Sugawara
    • Takayoshi EndoKenji TakenouchiMikio NishihataToshio AsanoAkira Sugawara
    • C22F1/08C22C9/02
    • C22F1/08C22C9/02C22C9/06
    • A copper base alloy for terminals that is of the Cu-Ni-Sn-P or Cu-Ni-Sn-P-Zn system and that has a tensile strength of at least 50 kgf/mm.sup.2, a spring limit of at least 40 kgf/mm.sup.2, a stress relaxation of not more than 10% and a conductivity of at least 30% IACS is provided. Terminals the spring portion or the entire part of which is produced from that copper base alloy, having an insertion/extraction force of 0.2-3 kgf and a resistance of not more than 3 m.OMEGA. at low voltage and current as initial performance, with the added characteristic that the terminals will experience not more than 20% stress relaxation are also provided. The alloy is superior to the conventional bronze, phosphor bronze and Cu-Sn-Fe-P alloys for terminals in terms of tensile strength, spring limits, stress relaxation characteristic and conductivity and, hence, the terminals manufactured from those alloys have higher performance and reliability than the terminals made of the conventional copper base alloys for terminals.
    • 用于Cu-Ni-Sn-P或Cu-Ni-Sn-P-Zn系的端子用铜基合金,其拉伸强度为至少50kgf / mm 2,弹簧极限为至少40kgf / mm2,应力松弛不大于10%,电导率至少为30%IACS。 端子弹簧部分或其整个部分由该铜基合金制成,其具有0.2-3kgf的插入/拉伸力和在低电压和电流下不超过3m欧姆电阻作为初始性能,其中 还提供了终端将经历不超过20%的应力松弛的特征。 在拉伸强度,弹簧极限,应力松弛特性和导电性方面,该合金优于常规的青铜,磷青铜和Cu-Sn-Fe-P合金,因此,由这些合金制造的端子具有更高的性能和 可靠性高于由常规铜基合金端子制成的端子。
    • 4. 发明授权
    • Wear resistant copper base alloy, method of preparing the same and electrical part using the same
    • 耐磨铜基合金,其制备方法及使用其的电气部件
    • US06336979B1
    • 2002-01-08
    • US09493997
    • 2000-01-27
    • Akira SugawaraYoshitake HanaTakayoshi Endo
    • Akira SugawaraYoshitake HanaTakayoshi Endo
    • C23C2600
    • C22F1/08C22F1/02C23C26/00C25D5/505H01R13/03Y10S428/929Y10S428/941Y10T428/1259Y10T428/12715
    • Wear resistant copper or a wear resistant copper base alloy having formed on the outermost surface thereof an oxide layer having a thickness of 10-1000 nm and a layer of an intermetallic compound primarily comprising Cu—Sn having a thickness of 0.1-10 &mgr;m under the oxide film layer is provided; a method of preparing the above-described wear resistant copper or copper base alloy by coating base material copper or a copper base alloy with Sn, preferably performing reflow treatment and then conducting heat treatment is provided; and an electrical part comprising the above-described wear resistant copper or copper base alloy is provided. A terminal made of the alloy according to the present invention which has an appropriate oxide film layer by performing heat treatment can greatly decrease a terminal-insertion force compared with that made of an ordinary copper base alloy which is not subjected to the heat treatment. The wear resistant copper or copper base alloy according to the present invention has a large surface hardness, an excellent slipping property, small contact resistance, an excellent electrical characteristic, as well as the small terminal-insertion force so that it can advantageously be used in an electrical part such as a connector or the like for use in an automobile, a charging socket or the like for use in an electric automobile.
    • 耐磨铜或耐磨铜基合金,其最外表面上形成有厚度为10-1000nm的氧化物层和主要包含厚度为0.1-10μm的Cu-Sn的金属间化合物层, 氧化膜层; 提供了通过涂覆基底材料铜或铜基合金与Sn,优选进行回流处理然后进行热处理来制备上述耐磨铜或铜基合金的方法; 并且提供包括上述耐磨铜或铜基合金的电气部件。 与通过不进行热处理的普通铜基合金相比,通过进行热处理具有合适的氧化膜层的本发明的合金端子,能够大大降低端子插入力。 根据本发明的耐磨铜或铜基合金具有大的表面硬度,优异的滑动性,小接触电阻,优异的电特性,以及小的端子插入力,使得其可以有利地用于 用于汽车的电气部件,例如连接器等,用于电动汽车的充电插座等。
    • 5. 发明授权
    • Copper base alloys and terminals using the same
    • 铜基合金和使用其的端子
    • US06254702B1
    • 2001-07-03
    • US09379951
    • 1999-08-24
    • Yoshitake HanaAkira SugawaraTakayoshi Endo
    • Yoshitake HanaAkira SugawaraTakayoshi Endo
    • C22C902
    • C22C9/06C22C9/02
    • A copper alloy for terminals of the Cu—Ni—Sn—P system or Cu—Ni—Sn—P—Zn system and that has a tensile strength of at least 500 N/mm2, a spring limit of at least 400 N/mm2, a stress relaxation of no more than 10%, a conductivity of at least 30% IACS and a bending workability in terms of a R/t ratio of no more than 2. The spring portion or the entire part of such terminals are produced from the copper alloy, and have an initial insertion/extraction force of 1.5 N to 30 N and a resistance of no more than 3 m&OHgr; at low voltage and low current as initial performance. The terminals experience not more than 20% stress relaxation. The alloy is superior to the conventional bronze, phosphor bronze and Cu—Sn—Fe—P alloys for terminals in terms of tensile strength, spring limit, stress relaxation characteristics and conductivity and, hence, the terminals manufactured from such alloys have higher performance and reliability than terminals made of the conventional copper alloys for terminals.
    • Cu-Ni-Sn-P系或Cu-Ni-Sn-P-Zn系的端子用铜合金,拉伸强度为500N / mm2以上,弹簧极限为400N / mm2以上 ,不小于10%的应力松弛,IACS的至少30%的导电率和不大于2的R / t比的弯曲加工性。这些端子的弹簧部分或整个部分由 铜合金,并且在低电压和低电流下具有1.5N至30N的初始插入/提取力和不超过3mOMEGA的电阻作为初始性能。 终端体验不到20%的压力放松。 在拉伸强度,弹簧极限,应力松弛特性和导电性方面,该合金优于常规的青铜,磷青铜和Cu-Sn-Fe-P合金,因此,由这种合金制造的端子具有更高的性能和 可靠性高于用于端子的常规铜合金制成的端子。