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11. 发明公开

KR1020020018135A 진공 아크 재용융 장치 및 방법 失效
标题翻译：真空灭弧装置和工艺
公开(公告)号：KR1020020018135A
公开(公告)日：2002-03-07
申请号：KR1020010052739
申请日：2001-08-30
申请人： 제너럴 일렉트릭 캄파니
发明人： 벤즈마크길버트 , 헨리마이클프란시스 , 카터윌리암토마스이세 , 뷰레이버나드패트릭
IPC分类号： F27B14/04
CPC分类号： H05B7/07
摘要： PURPOSE: A VAR (vacuum arc remelting) process and furnace that avoid contamination by stabilizing the ingot shelf to prevent abrupt fracture are provided. CONSTITUTION: The vacuum arc remelting apparatus comprises a furnace chamber(14); a consumable electrode(12) formed of a material to be remelted within said furnace chamber(14); and a crucible(16) within said furnace chamber(14), said crucible(16) comprising a wall that forms a vessel to collect melt material from said consumable electrode, wherein said wall is textured to provide increased surface area to mechanically stabilize solidifying melt material. The vacuum arc remelting process comprises the steps of loading a consumable electrode(12) into a furnace chamber(14) above a cooled crucible(16) comprising a textured wall that forms a vessel to collect melt material from said consumable electrode(12); striking a direct electric current between said electrode(12) and a bottom of said crucible(16) to cause melting of material from a tip of said electrode(12); collecting melt material from said tip in said crucible(16); and cooling said melt material to form an ingot characterized by a shelf of solidified material forming adjacent said textured wall of said crucible(16) in advance of a lower boundary of solidifying material.
摘要翻译：目的：提供一种VAR（真空电弧重熔）工艺和炉子，通过稳定铸锭架以防止突然断裂，避免污染。构成：真空电弧重熔设备包括炉室（14）; 由在所述炉室（14）内重新熔化的材料形成的消耗电极（12）; 和所述炉室（14）内的坩埚（16），所述坩埚（16）包括形成容器以从所述可消耗电极收集熔体材料的壁，其中所述壁纹理化以提供增加的表面积以机械稳定凝固熔体材料。真空电弧重熔过程包括以下步骤：将消耗电极（12）装载到冷却的坩埚（16）上方的炉室（14）中，所述冷却坩埚（16）包括形成容器的纹理壁，以从所述可消耗电极（12）收集熔体材料; 在所述电极（12）和所述坩埚（16）的底部之间引起直流电流，以引起材料从所述电极（12）的尖端熔化。从所述坩埚（16）中的所述尖端收集熔体材料; 以及冷却所述熔体材料以形成特征在于在固化材料的下边界之前形成在所述坩埚（16）的所述织构壁附近的固化材料架的特征。

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