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    • 5. 发明申请
    • PISTON FOR METAL DIE CASTING
    • 金属铸件活塞
    • WO2014161101A1
    • 2014-10-09
    • PCT/CH2014/000043
    • 2014-04-03
    • MURSELAJ, Gani
    • MURSELAJ, Gani
    • B22D17/20
    • B22D17/203B22D17/2038
    • A die casting piston (1) for die casting nonferrous metals has at least one outer part such as a piston body (11), an intermediate ring (9), a sealing ring (7) etc. that is generally ring-shaped so as to surround a piston carrier (3) and provided with an axial slot (41, 59, 117) so that the part can expand and contract tangentially during a temperature change, e.g. from ambient temperature to operating temperature. Due to this design of the outer parts of the piston, cooling can be limited to a smaller portion of the piston, preferably substantially to the rear side of the piston cover (5; 154). The result is a substantially shortened overall construction of the die casting piston (1) that is reflected by reduced production costs. In accordance with the smaller dimensions of the cooled zone, a reduced coolant flow is required. In a preferred embodiment at least two parts, namely the piston body (11) and the piston cover (5; 154), are fastened to the piston carrier (3) by means of two bayonet locks (27, 33) of different diameters, thereby allowing an easy assembly from the front face without special tools.
    • 用于压铸有色金属的压铸活塞(1)具有至少一个外部部件,例如活塞主体(11),中间环(9),密封环(7)等,其通常为环形,以便 以围绕活塞承载件(3)并且设置有轴向槽(41,59,117),使得所述部件可以在温度变化期间切向地膨胀和收缩,例如 从环境温度到工作温度。 由于活塞的外部部分的这种设计,冷却可以限于活塞的较小部分,优选地大体上限定在活塞盖(5; 154)的后侧。 结果是压铸活塞(1)的总体结构大大缩短,这反过来降低生产成本。 根据冷却区域的较小尺寸,需要减少冷却剂流。 在优选实施例中,至少两个部分,即活塞体(11)和活塞盖(5; 154)通过两个不同直径的卡口锁(27,33)紧固到活塞托架(3)上, 从而允许从前面容易地组装而没有专用工具。
    • 7. 发明申请
    • MOLDING METHOD AND MOLDING APPARATUS
    • 成型方法和成型设备
    • WO2013144698A1
    • 2013-10-03
    • PCT/IB2013/000382
    • 2013-03-13
    • TOYOTA JIDOSHA KABUSHIKI KAISHAKIKUCHI, Makoto
    • KIKUCHI, Makoto
    • B22D17/14B22D17/30B22D18/04
    • B22D17/203B22D17/14B22D17/2076B22D17/30B22D18/04B22D35/04
    • A molding apparatus (30) is configured so as to form a molten metal holding space (41a) by dividing the inside of a connecting portion (41) into the molten metal holding space (41a) and a molten metal supply port-side space (41b) by closing an on-off valve (42), and pump up molten metal (5) from a molten metal furnace (50) into the molten metal holding space (41a) of the connecting portion (41) with a pump (40). Then a pressure of the molten metal (5) that has been pumped up into the molten metal holding space (41a) is reduced by a pressure-reducing portion, and the molten metal holding space (41a) inside the connecting portion (41) is communicated with a molten metal supply port (6) of an injection sleeve (2) by opening the on-off valve (42), and the molten metal (5), the pressure of which has been reduced in the molten metal holding space (41a), is supplied into the injection sleeve (2).
    • 成形装置(30)构成为通过将连接部(41)的内部分割成熔融金属保持空间(41a)和熔融金属供给口侧空间(41a)而形成熔融金属保持空间(41a) 41b),通过关闭开关阀(42),并将熔融金属(5)从熔融金属炉(50)泵送到连接部分(41)的熔融金属保持空间(41a)中,泵(40) )。 然后,通过减压部减少已经被泵送到熔融金属保持空间41a内的熔融金属(5)的压力,连接部(41)内的熔融金属保持空间(41a)为 通过打开开关阀(42)和熔融金属(5)的熔融金属(5)在熔融金属保持空间中被降低(...)而与注射套筒(2)的熔融金属供给口(6) 41a)供应到注射套筒(2)中。