PROCEDE DE BRASSAGE PNEUMATIQUE DU METAL LIQUIDE EN POCHE
- 申请公布号：
- FR2807066(A1)
- 申请号：
- FR20000003966
- 申请日期：
- 2000.03.29
- 申请公布日期：
- 2001.10.05
- 申请人：
- USINOR
- 发明人：
- STOUVENOT FRANCOIS;BURTY MARC;DOMGIN JEAN FRANCOIS;GARDIN PASCAL;VIALE DOMINIQUE;VIALE DOMINIQUE;REITZ RAYMOND;LECLERCQ FREDERIC
- 分类号：
- B22D1/00;C21C7/072;C21C7/10;F27D25/00;F27D27/00;(IPC1-7):C21C7/00
- 主分类号：
- B22D1/00
- 摘要：
- The invention concerns a vacuum treatment of cast metal in liquid form comprising steps which consist in: introducing the cast metal in liquid form into the metallurgic ladle filling said ladle until a guard height ranging between 0.4 and 0.6 m is reached; treating the metal while bringing the atmosphere above said ladle under vacuum and simultaneously stirring the cast metal by injecting helium into the base of said ladle during part of or the whole treatment.
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