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    • 7. 发明申请
    • MELTING METHOD FOR PRODUCING AN INCLUSION-FREE TA-BASE ALLOY
    • 用于生产无包含TA基合金的熔融方法
    • US20110264161A1
    • 2011-10-27
    • US13091852
    • 2011-04-21
    • Herwig SchieferChristoph VogtHeiko SpechtJens TroetzschelEgbert Stiedl
    • Herwig SchieferChristoph VogtHeiko SpechtJens TroetzschelEgbert Stiedl
    • A61N1/375C22C27/02C22C1/02
    • C22C27/02C22C1/045
    • One aspect relates to a method for producing an alloy, whereby the alloy consists of three metals and the three metals are selected from the group consisting of tantalum, tungsten, and niobium.The method according to one embodiment is characterized by a) grinding the tantalum to form a tantalum powder and grinding the tungsten to form a tungsten powder; b) mixing the tantalum powder and the tungsten powder to form a blended powder, whereby the weight fraction of tungsten powder in the blended powder is larger than in the desired alloy; c) producing a blended body from the blended powder by means of a powder metallurgical route; d) producing a pre-alloy by means of a first melting of the blended body and at least a fraction of at least one further metal by means of a melt metallurgical route; and e) producing the alloy by means of a second melting of the pre-alloy and the remaining fraction of at least one metal by means of a melt metallurgical route.
    • 一方面涉及合金的制造方法,由此合金由三种金属组成,三种金属选自钽,钨和铌。 根据一个实施方案的方法的特征在于a)研磨钽以形成钽粉末并研磨钨以形成钨粉末; b)将钽粉和钨粉混合形成混合粉末,由此掺合粉末中钨粉的重量比大于所需合金; c)通过粉末冶金路线从混合粉末制备混合体; d)借助于熔体冶金路线,通过所述共混体的第一次熔融和至少一部分至少一种其它金属来生产预合金; 以及e)通过熔融冶金路线通过所述预合金和至少一种金属的剩余部分的第二次熔融来生产所述合金。