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随着真空冶金的日益发展,对大型真空感应式冶炼设备的要求日益增长,所以底铸坩埚问题引起了人们的注意。为了简化真空精炼设备,扩大容量,探明现有底铸塞方案的可靠性,我们在现有设备条件下,做了几炉试验,并取得初步结果。本试验是在30瓩高频炉上进行的,其底铸塞结构见附图。坩埚是炉外法制做的,每炉装6公斤中碳钢,供给底塞冷却水的水压为1.7公斤/厘米~2,水温为15℃。熔化完毕后10分钟测钢液温度为1,520℃,这时减少冷却水的
With the development of vacuum metallurgy, the demand for large-scale vacuum induction smelting equipment is growing day by day, so the problem of bottom casting crucible has drawn people’s attention. In order to simplify the vacuum refining equipment, expand the capacity and prove the reliability of the existing bottom plug design, we made a few furnace tests under the existing equipment conditions and achieved preliminary results. This test is carried out in 30 瓩 high-frequency furnace, the bottom plug structure shown in the drawings. The crucible is made by furnace outside the legal system, each furnace installed 6 kg of carbon steel, water supply bottom plug cooling water pressure of 1.7 kg / cm ~ 2, the water temperature is 15 ℃. 10 minutes after the molten steel was measured at a temperature of 1,520 ℃, then reduce the cooling water