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    • 2. 发明授权
    • Injection mold for semi-solidified Fe alloy
    • 半固态Fe合金注塑模具
    • US06810941B2
    • 2004-11-02
    • US10158580
    • 2002-05-30
    • Masayuki TsuchiyaHiroaki UenoIsamu TakagiNaokuni MuramatsuMasato Yasuda
    • Masayuki TsuchiyaHiroaki UenoIsamu TakagiNaokuni MuramatsuMasato Yasuda
    • B22C300
    • B22D17/2209B22D17/007
    • An injection mold for casting a semi-solidified Fe alloy includes a scalping gate for eliminating surface oxide film of a semi-solidified Fe alloy injected into the mold cavity from a pressure chamber. The scalping gate is arranged between the pressure chamber and a runner that is in communication with the mold cavity. The mold halves and the scalping gate are each formed of a copper alloy having a thermal conductivity of not less than 120 W/(m·K) and a hardness of not less than 180 HB. The mold halves and the scalping gate each have a cermet layer consisting essentially of at least one member selected from a group consisting of Co, Cu, Cr and Ni. The cermet layer is formed by electro-spark deposition, via an intermediate layer of Ni alloy, which is also formed by electro-spark deposition.
    • 用于铸造半固化Fe合金的注射模具包括用于消除从压力室注入到模腔中的半固化Fe合金的表面氧化膜的刮刀。 烫平门布置在压力室和与模腔连通的转轮之间。 半模和烫金闸门均由热导率不低于120W /(m.K),硬度不低于180HB的铜合金形成。 模具半部和剥皮门各自具有金属陶瓷层,金属陶瓷层基本上由选自Co,Cu,Cr和Ni中的至少一种构成。 金属陶瓷层通过电火花沉积,通过也由电火花沉积形成的Ni合金中间层形成。