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我厂用一台立式单熔沟500公斤有芯工频感应电炉熔炼锡锌铅铸造青铜。生产实践表明,该炉存在如下两个问题: 1.由冷炉加热熔沟起熔体时,经常发生熔沟起熔体断裂,迫使打炉大修,耗费大量人力和筑炉材料,严量影响生产的正常进行。 2.熔炼速度慢(每炉需2.5～3.5小时),难于满足铸造锡青铜快速熔炼、保证质量的要求,耗电量大。为了解决这两个问题,我们结合生产,从熔沟几何形状进行分析、选择试验和改进,取得了很好的效果。一、断沟的机理分析有芯工频感应电炉的工作原理是:网路电源输入感应器(线圈),生产交变磁场,
I plant with a vertical single melt channel 500 kilograms core frequency induction furnace melting tin zinc lead casting bronze. Production practice shows that the furnace has the following two problems: 1. Melt ditch melting from the cold furnace melt, the melt melt often occurs from the ditch, forcing the stove overhaul, consuming a lot of manpower and building materials, a serious impact The normal production. 2. The smelting speed is slow (each furnace takes 2.5 ~ 3.5 hours), it is difficult to meet the rapid casting of tin bronze casting to ensure the quality requirements, power consumption. In order to solve these two problems, we combine the production, from the analysis of the melt groove geometry, select the test and improvement, and achieved good results. First, the mechanism of broken ditch Core frequency induction furnace working principle is: network power input sensor (coil), the production of alternating magnetic field,