【摘要】 介绍了钛合金锭的半连续感应熔炼方法，测试了Ф280 mm冷坩埚在不同熔炼功率（450 kW、550 kW、650 kW、750 kW、800 kW）条件下TA17合金锭的熔化情况以及冷却循环系统的进出口水温变化情况，并根据测试数据计算了能量有效利用情况。试验结果显示，电源功率为450 kW、550 kW时，由于电源功率过低不能使合金锭熔化；电源功率为650 kW、750 kW、800 kW时，能使合金锭熔化。同时根据能量有效利用的计算结果开展了（650 kW、750 kW、800 kW）不同加料速度下的熔炼测试，测试结果表明，在熔炼功率一定的情况下，单次加料重量过大，会出现合金架桥情况，单次加料重量过小，冷却循环水会出现水温急剧升高的问题。当熔炼功率为750 kW/min，加料重量为4 kg/min时，该熔炼工艺条件下冷却循环水温<50℃，有效地实现了TA17钛合金锭的半连续感应熔炼，其能量有效利用率约为8.3%。更多还原

【Abstract】 In this work, the semi-continuous induction smelting method of titanium alloy ingot was introduced. The Φ280 mm cold crucible was used to smelt TA17 alloy under different powers(450 kW, 550 kW, 650 kW,750 kW, 800 kW). The experimental results showed that the TA17 alloy ingot could not be melted when the power was 450 kW and 550 kW, which could be melted under the power of 650 kW, 750 kW and 800 kW.The TA17 alloy smelting efficiency of Φ280 mm cold crucible with different powers(650 kW, 750 kW, 800kW)was calculated. According to the calculation results, the smelting process scheme was formulated and the corresponding experiments were carried out. The experimental results showed that under the condition of a certain smelting power, the alloy will not be smelted if adding too much alloy material per unit time. On the contrary, the temperature of the cooling circulating water will rise rapidly when the alloy material is fed too little in unit time, which will result the cold crucible damaged. When the smelting power was 750 kW and the feeding weight was 4 kg/min, the cooling circulation water temperature was less than 50 ℃, the semi-continuous induction smelting of TA17 titanium alloy ingot was effectively realized, and the effective utilization rate of energy was about 8.3%.更多还原