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热镀锌锌锅外加热熔锌能耗大、熔锌时间长、发热元件易损坏。研制出一种高强度、导热性能良好、不导电的陶瓷材料作为锌锅内加热发热元件套管。该套管能承受锌液凝固时的收缩压力，提高热效率，降低锌锅加热功率，更换加热元件方便、快捷，减小锌锅尺寸、锌的加入量及锌耗，降低了成本，提高了产品质量和经济效益。试制了一批套管，在改造的４０线热镀锌钢丝生产线上进行试用，运行良好。
Hot dip galvanized zinc pot outside the hot melt zinc energy consumption, melting zinc for a long time, easy to damage the heating element. Developed a high strength, good thermal conductivity, non-conductive ceramic material as the heating pot heating element casing. The sleeve can withstand the systolic pressure of liquid zinc coagulation, improve thermal efficiency, reduce zinc pot heating power, replace the heating element convenient, fast, reduce zinc pot size, the amount of zinc and zinc consumption, reduce costs and improve the product Quality and economic benefits. Trial production of a number of casing, in the transformation of the 40-line hot-dip galvanized steel production line for trial, run well.