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    • 2. 发明授权
    • Casting-die body
    • 铸造机身
    • US06383663B2
    • 2002-05-07
    • US09770842
    • 2001-01-26
    • Dirk RodeHans-Jürgen HemschemeierRalf Rethmann
    • Dirk RodeHans-Jürgen HemschemeierRalf Rethmann
    • B32B1501
    • B22D11/059Y10T428/12847Y10T428/12903
    • A casting-die body (1) made of a hardenable copper alloy is provided with an inner wear-protective layer (7) of chromium whose hardness decreases from the billet-side surface (8) in the direction of the casting-die body (1). The wear-protective layer (7) is made up of two chromium layers (9, 10). For this purpose, the casting-die body (1) is given a solution heat treatment, is chromium plated, and is then hardened, as a result of which the initially very great hardness of the chromium layer (9) is reduced. The hardness of the chromium layer (9) then is about 650 HV. Subsequently, to increase the wear protection, the second chromium layer (10) is applied. The result is a conventional chromium-plated layer having a hardness of between 850 HV and 1050 HV.
    • 由可硬化铜合金制成的铸模体(1)设置有从铸模侧的表面(8)沿着铸模体的方向(C)的硬度降低的内部耐磨层(7) 1)。 耐磨层(7)由两层铬层(9,10)构成。 为此,将铸模体(1)进行固溶热处理,镀铬,然后硬化,结果,铬层(9)的初始非常大的硬度被降低。 铬层(9)的硬度约为650HV。 随后,为了增加磨损保护,施加第二铬层(10)。 结果是硬度为850HV至1050HV之间的常规镀铬层。