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电渣重熔过程中,氧不断传递到熔化的钢液里,使重熔的钢中所含易氧化元素不断被氧化而造成烧损。由于航空结构钢中都含有残余铝,经电渣重熔后因烧损严重而波动性很大,常常达不到厂控要求,出现很难保证晶粒度合格的被动局面。众所周知,最佳的残余铝含量是确保晶粒度合格的必要条件,也就是说,保证重熔后的电渣锭材残余铝含
Electroslag remelting process, the oxygen is continuously delivered to the molten steel, the remelted steel contained in the oxidation of the elements are constantly oxidized and cause burning. As aviation structural steel contains residual aluminum, after electroslag remelting due to serious damage and volatility, often fail to plant control requirements, it is difficult to ensure passivity grain size passively. As we all know, the best residual aluminum content is to ensure that the grain size of the necessary conditions for qualified, that is, to ensure remelted after the residual electroslag ingot aluminum