感应电炉炉衬损毁的机理 The mechanism of induction furnace lining damaged 炉衬材料在使用过程中发生损毁现象，那为什么会发生损毁哪?发生损毁的机理是什么？这是因为融化状态下的金属、金属里面的氧化物、金属溶液里面的熔渣和温度应力的作用造成的。感应电炉的炉衬比较薄，烧结后的炉衬成为三个层次，靠近金属液的部分称为烧结层，占整个炉衬厚度的28-31%，中间部分称为半烧结层，占整个炉衬厚度的28-31%，靠近感应圈的部分称为缓冲层，占炉衬厚度的27-32%。这三个层次中存在着较大的温度梯度，极易造成炉衬的开裂和剥落。当熔融的金属、金属氧化物或熔渣沿炉衬的裂纹渗透到纵深内部时就会发生以下现象：1、熔融金属发生氧化还原反应或者生成低熔点物质，致使炉衬遭到侵蚀、龟裂、剥落。2、熔融金属和炉衬材料发生氧化反应并伴随着体积膨胀，造成炉衬的膨胀而塌落。3、熔融金属或者熔渣自身对炉衬产生的冲刷和侵蚀。 Lining material damage occur in the process of using, why would happen damage? What is the mechanism of the damaged? This is because the melting state of the inside of the metal, metal oxides, metal solution in the slag and the effect of temperature stress caused by. Induction furnace lining is more thin, after sintering furnace lining into three levels, near the metal part is called sintering layer, 28-31% of the total thickness of the lining, the middle section is called a sintering layer, 28-31% of the total thickness of the lining, close to the part of the induction coil, called a buffer layer, 27-32% of the thickness of the lining. The three level there is a large temperature gradient, lining cracking and peeling off easily. When the molten metal, metal oxide or slag lining crack along the permeate deep inside will occur when the following phenomena: 1, the molten metal REDOX reaction or generate low melting point material, the furnace lining erosion, cracking and peeling. 2, molten metal and oxidizing reaction furnace lining materials and with the volume expansion, the expansion of the lining caused the damage. 3, molten metal or molten slag itself to the lining erosion and erosion.