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到目前为止,我国一吨以上的无心感应电炉都是采用在加热期间被熔化的一次性使用的钢模打结耐火炉衬。不论炉衬大修或中修,每次都要消耗一只钢模。由于国内4～5毫米厚的薄钢板货源紧张,价格昂贵,钢模成本逐年增加。为此,在查阅国内外有关资料的基础上,对我厂1.5吨无心工频感应电炉炉衬打结工艺进行了改进。铸造车间使用的工频无心感应电炉传统上是由人工或振动捣固机借助于一次性使用的钢模打结耐火炉衬的。在炉衬烧结期间通常采用低压连续或断续送电,控制升温速度慢慢地进
So far, more than one ton of unintentional induction furnaces in our country all adopt the one-time use steel mold knot refractory lining which is melted during heating. Regardless of lining overhaul or repair, each time to consume a steel mold. As the domestic 4 to 5 mm thick sheet of steel tight supply, expensive, steel mold costs increased year by year. To this end, based on the relevant information at home and abroad, on the basis of our factory 1.5 tons inadvertently frequency induction furnace lining lining knot technology has been improved. The frequency induction hearth furnace used in foundries has traditionally been lined with refractory linings by means of manual or vibrating tamping machines by means of disposable steel dies. During sintering in the lining of the low voltage usually used for continuous or intermittent transmission, control the heating rate slowly into