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去除钢水中的磷、硫等非金属夹杂及气体夹杂,这对生产延展性和韧性均优良的钢是极其重要的。为此,日本钢铁公司研究出了一种新的生产工艺——电炉(EAF)-钢包精炼炉(LRF)冶炼工艺。一、钢包精炼炉的结构图1所示为钢包精炼炉的结构。精炼炉炉顶有两个相同的真空室分置两边,中间是一台加热装置。钢包容量为150吨、140吨和100吨。通常可同时处理两个盛有钢水的钢包,轮流进行加热和脱气。
Removal of molten steel phosphorus, sulfur and other non-metallic inclusions and gas inclusions, which produce ductile and toughness are excellent steel is extremely important. To this end, Nippon Steel Company has developed a new production process - electric furnace (EAF) - ladle refining furnace (LRF) smelting process. First, the structure of ladle refining furnace Figure 1 shows the ladle furnace refining structure. The top of the furnace has two identical vacuum chambers divided on two sides with a heating device in the middle. Ladle capacity is 150 tons, 140 tons and 100 tons. Usually can handle two ladle containing molten steel, take turns heating and degassing.