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    • 1. 发明授权
    • Aluminum alloy shapes
    • 铝合金形状
    • US4039355A
    • 1977-08-02
    • US550223
    • 1975-02-18
    • Toshiro TakahashiToshihiro NaganoKenji WadaMasaru Kikuchi
    • Toshiro TakahashiToshihiro NaganoKenji WadaMasaru Kikuchi
    • C22F1/05C22C21/02C22C21/06C22C21/08C22F1/00
    • C22C21/08Y10T428/31935
    • An aluminum alloy consising essentially of 0.65 to 0.75% by weight of magnesium and 0.50 to 0.60% by weight of silicon or 0.47 to 0.57% by weight of magnesium and 0.75 to 0.85% by weight of silicon, 0.15% to 0.25% by weight of iron, less than 0.05% of an impurity selected from the group consisting of copper, manganese, zinc, chromium, and titanium and the balance aluminum, the aluminum alloy being subjected to aging treatment at a temperature below 200.degree. C for 20 to 50 minutes to obtain 0.2% proof stress larger than 11 kg/mm.sup.2, ultimate tensile strength larger than 20 kg/mm.sup.2 and elongation more than 8%. Aluminum alloy shapes are formed of the above aluminum alloy by extrusion forming of the aluminum alloy to obtain an extrusion, coating a film on the surface of the extrusion with a water-soluble paint after forming thereon a ground film, heating the extrusion at a temperature below 200.degree. C for 20 to 50 minutes to effect printing and hardening of the coated film and age hardening of the extrusion at the same time.
    • 一种铝合金基本上占0.65至0.75重量%的镁和0.50-0.60重量%的硅或0.47至0.57重量%的镁和0.75至0.85重量%的硅,0.15重量%至0.25重量%的硅, 铁,小于0.05%的选自铜,锰,锌,铬和钛的杂质,余量为铝,铝合金在200℃以下进行20-50分钟的时效处理 获得大于11kg / mm2的0.2%屈服应力,极限抗拉强度大于20kg / mm2,伸长率大于8%。 铝合金的形状由上述铝合金形成,通过铝合金的挤出成型得到挤出,在其上成型后用水溶性涂料在挤压成形表面上涂覆膜,在该温度下加热挤出 在200℃以下20〜50分钟,同时进行涂膜的印刷硬化和挤出的时效硬化。
    • 10. 发明授权
    • Proportional electromagnetic-type direction- and throttle-controlling
valve
    • 比例电磁式方向和节流控制阀
    • US4014509A
    • 1977-03-29
    • US581684
    • 1975-05-28
    • Susumu YoshinoMasaru KikuchiHisakazu Ichioka
    • Susumu YoshinoMasaru KikuchiHisakazu Ichioka
    • F15B13/043F16K31/06F16K31/42
    • F15B13/0433F16K31/426Y10T137/8659Y10T137/86614
    • A proportional electromagnetic-type direction-and throttle-controlling valve comprising a spring centered valve spool in a valve body, a pressure reducing valve, two flow restricting orifices, two DC solenoid controlled poppet valves and a vent port in each pressure chamber. Supply flow reduced to a fixed low pressure is divided into two branch lines with flow restricting orifices. The pilot pressure in each restricted flow passage with vent port is controlled by a DC solenoid-controlled poppet valve. The pilot pressure acting on the main spool end moves the spool against the spool centering spring force proportionally to the input DC current. Therefore, the flow rate through the throttling gap between the spool land and the mating valve body is controlled proportionally to input DC current. Vent ports are provided for rapid action of the spool.
    • 一种比例电磁型方向和节气门控制阀,包括阀体中的弹簧对中阀芯,减压阀,两个流量限制孔,两个DC电磁控制提升阀和每个压力室中的排气口。 供应流量减少到固定的低压分为两个分支管道,具有流量限制孔。 带有排气口的每个受限流道中的先导压力由直流电磁阀控制的提升阀控制。 作用在主阀芯端的先导压力使阀芯相对于输入直流电流成比例地相对于阀芯对中弹簧力移动。 因此,通过卷轴接头和配合阀体之间的节流间隙的流量按输入直流电流成比例地控制。 排气口用于阀芯的快速作用。