公开(公告)号：US5224534A

公开(公告)日：1993-07-06

申请号：US761122

申请日：1991-09-17

Applicant: Fumiyuki Shimizu ,  Toshiaki Kawata ,  Masayasu Ito ,  Takeshi Akazawa

Inventor： Fumiyuki Shimizu ,  Toshiaki Kawata ,  Masayasu Ito ,  Takeshi Akazawa

IPC: B22D23/06

CPC classification number: B22D11/141 ,  B22D11/001 ,  B22D11/113 ,  F27B3/08 ,  F27D99/0006 ,  F27D2099/003

Abstract: There is provided a method of producing a refractory metal or refractory metal-based alloy material by electron beam cold hearth remelting which comprises melting and casting a meltable electrode, characterized in that the electrode used for electron beam cold hearth remelting is made by enveloping a material of refractory metal or refractory metal-based alloy to be melted with an enclosure formed from a metallic material having a higher vapor pressure than said particular refractory metal or from a metallic material which includes component or components having a higher vapor pressure than said particular refractory metal. The evaporation loss of the alloy component or components of the refractory metal-based alloy is compensated for with said metallic material or component(s) of the enclosure or otherwise any metallic material or component(s) of the enclosure provides at least a partial addition of the alloy component or components of the refractory metal-based alloy. Titanium sponge or titanium scrap may be produced into a slab with a square cross section and then directly rolling the slab without subjecting the slab to forging before the rolling.

Abstract translation: 提供了一种通过电子束冷炉重熔制造难熔金属或难熔金属基合金材料的方法，该方法包括熔融和铸造可熔电极，其特征在于，用于电子束冷床重熔的电极通过包裹材料 难熔金属或难熔金属基合金被熔化，其由具有比所述特定难熔金属更高蒸气压的金属材料形成的外壳或由包括具有比所述特定难熔金属更高的蒸气压的成分或组分的金属材料熔化 。 合金组分或难熔金属基合金的组分的蒸发损失由外壳的所述金属材料或组分补偿，否则外壳的任何金属材料或组分提供至少部分添加 的合金组分或难熔金属基合金的组分。 可以将钛海绵或钛废料制成具有正方形横截面的板坯，然后在轧制之前直接轧制板坯而不进行锻造。