Experience in the Production of Horizontal Ingots of Platinum Metals and Alloys

摘要：

The quality of semi-products of platinum metals and alloys, produced by way of plastic working, essentially depends on or, in many cases, is completely determined by the quality of ingots. Plastic working does not make it possible to eliminate or localize metallurgical defects. In many cases it promotes the occurence thereof.Low-rate casting with directional crystallization can ensure the production of dense ingots free of non-metallic inclusions, shrinkage and gas weakness, with observance of certain temperature/rate modes. After comparative tests of vertical and horizontal molds, preference has been given to horizontal water-cooled molds, allowing to cast all alloys in the conditions of directional crystallization.

关键词： ingot directional crystallization low-rate casting mold crystallization front metallurgical defect sticking pyrometallurgical refining

作者: LEVCHENKO S. D VERSHININA E. N

作者单位: OJSC SIC Supermetal, Moscow, Russia

会议类型: 国际会议

会议名称: 5th International Conference Platinium Metals(第五届国际贵金属会议)

会议地点: 昆明

会议语种:英文

页码: 250-252

在线出版日期: 2012-10-15（万方平台首次上网日期，不代表论文的发表时间）