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    • 96. 发明申请
    • BRASS ALLOY AND PROCESSED PART AND WETTED PART
    • 黄铜合金加工部分和湿润部分
    • US20150275333A1
    • 2015-10-01
    • US14439505
    • 2013-04-08
    • KITZ CORPORATION
    • Hidenobu TamedaHisanori TeruiKei ItoTomoyuki Ozasa
    • C22C9/04
    • C22C9/04
    • Provided is a brass alloy excellent in recyclability and corrosion resistance while avoiding the addition of Bi and Si, and with which machinability is ensured and processing is facilitated with preventing inclusion of lead. The present invention includes at least 58.0 to 63.0 mass % of Cu, 1.0 to 2.0 mass % of Sn and 0.05 to 0.29 mass % of Sb and the remainder composed of Zn and unavoidable impurities. With the present invention, stress corrosion crack resistance and machinability are improved. 0.05 to 1.5 mass % of Ni is included in a copper alloy to improve stress corrosion crack resistance as a result of the interaction between Ni and Sb. Furthermore, 0.05 to 0.2 mass % of P is included to improve anti-dezincification properties.
    • 提供一种避免添加Bi和Si的可回收性和耐腐蚀性优异的黄铜合金,并且通过防止铅的包含,确保了机械加工性和加工性。 本发明包括Cu:58.0〜63.0质量%,Sn 1.0〜2.0质量%,Sb:0.05〜0.29质量%,余量由Zn和不可避免的杂质构成。 通过本发明,提高了耐应力腐蚀开裂性和切削性。 由于Ni和Sb之间的相互作用,铜合金中含有0.05〜1.5质量%的Ni以提高耐应力腐蚀开裂性。 此外,含有0.05〜0.2质量%的P以提高抗脱锌性。
    • 99. 发明授权
    • Copper alloy sheet, and method of producing copper alloy sheet
    • 铜合金板,以及铜合金板的制造方法
    • US08992706B2
    • 2015-03-31
    • US14098378
    • 2013-12-05
    • Mitsubishi Shindoh Co., Ltd.Mitsubishi Materials Corporation
    • Keiichiro Oishi
    • C22F1/08C22C9/04B21B1/22B21B3/00H01B1/02C22F1/00
    • C22C9/04B21B1/22B21B3/00C22F1/00C22F1/08H01B1/026
    • One aspect of this method of producing a copper alloy sheet includes: a hot rolling process; a cold rolling process; a recrystallization heat treatment process; and a finish cold rolling process in this order, wherein a hot rolling initiation temperature is 800° C. to 940° C., a cooling rate from a temperature after final rolling or 650° C. to 350° C. is 1° C./second or more, and a cold working rate is 55% or more. In the recrystallization heat treatment process, 550≦Tmax≦790, 0.04≦tm≦2, and 460≦{Tmax−40×tm−1/2−50×(1−RE/100)1/2}≦580 are fulfilled, in which Tmax is the highest arrival temperature, tm (min) is a retention time in a temperature range from a temperature lower than the highest arrival temperature by 50° C. to the highest arrival temperature, and RE (%) is a cold working rate.
    • 该铜合金板的制造方法的一个方面包括:热轧工序; 冷轧过程; 再结晶热处理工艺; 和精冷轧工序,其中热轧起始温度为800〜940℃,从最终轧制后的温度或650℃〜350℃的冷却速度为1℃ 秒/秒以上,冷加工率为55%以上。 在再结晶热处理过程中,550< NlE; Tmax≦̸ 790,0.04< ll; tm≦̸ 2和460≦̸ {Tmax-40×tm-1 / 2-50×(1-RE / 100)1/2} 满足Tmax是最高到达温度,tm(min)是从低于最高到达温度50℃的温度到最高到达温度的温度范围内的保留时间,RE(%)为 冷工作率。
    • 100. 发明授权
    • Lead-free free-machining brass having improved castability
    • 无铅自由加工黄铜具有改进的浇注性能
    • US08968492B2
    • 2015-03-03
    • US12308966
    • 2008-10-01
    • Toru Uchida
    • Toru Uchida
    • C22C9/04B22C9/22
    • C22C9/04B22C9/22
    • There is provided a brass free from lead (Pb) and possessing excellent machinability, castability, mechanical properties and other properties. A brass consisting of not less than 55% by weight and not more than 75% by weight of copper (Cu), not less than 0.3% by weight and not more than 4.0% by weight of bismuth (Bi), and y % by weight of boron (B) and x % by weight of silicon (Si), y and x satisfying the following requirements: 0≦x≦2.0, 0≦y≦0.3, and y>−0.15x+0.015ab, wherein a is 0.2 when Bi is 0.3% by weight ≦Bi
    • 提供了不含铅(Pb)的黄铜,具有优异的机械加工性,浇铸性,机械性能等特性。 由不少于55重量%且不超过75重量%的铜(Cu)组成的黄铜,不小于0.3重量%且不大于4.0重量%的铋(Bi),y%由 0≤n1E; x&nlE; 2.0,0&nlE; y&nlE; 0.3,y> -0.15x + 0.015ab,其中a为硼(B)重量和x重量%硅(Si),y和x满足以下要求: Bi为0.3%(重量)时,Bi≤0.75%(重量); 0.85当Bi为0.75%(重量)时,Bi <1.5%(重量); 当Bi为1.5重量%且nlE时为1;当Zn(Zn)的表观含量不小于37%且小于41%时,Bi为1; 4.0重量%,b为1; 和0.75当Zn的表观含量不小于41%且不大于45%时,余量由Zn和不可避免的杂质组成,具有优异的浇铸性,以及例如机械加工性和机械性能。