我厂过去熔化铜合金、铝合金及稀土镁中间合金是地坑式焦碳炉,用坩埚熔化,这种方法劳动条件差,成本高,生产效率低。后改制成功用废油做燃料的回转式小油炉。此炉结构简单,制造容易,成本低。其结构主要分炉体、转动装置及喷油嘴(图1)。炉体壳由钢板焊接而成,炉衬用成形耐火砖砌制。用蜗轮、蜗杆传动,用手搬轮操作。石墨坩埚是用耐火材 In the past, our factory melted copper alloy, aluminum alloy and rare earth magnesium intermediate alloy is a pit-type coke oven fused with a crucible. This method has poor working conditions, high cost and low production efficiency. After the restructuring of the successful use of waste oil as a rotary small oil furnace. The furnace structure is simple, easy to manufacture, low cost. Its structure is divided into furnace body, rotating device and nozzle (Figure 1). The furnace shell is welded by steel plate, and the lining is made of shaped refractory bricks. Use worm gear, worm drive, hand wheel operation. Graphite crucible is made of refractory material