Experimental Study on Preparation of Ti-Al Master Alloy by Aluminothermic Reduction of TiO2
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摘要: 以钛白粉为原料,采用铝热还原法制备Ti-Al中间合金的冶炼工艺。采用单因素试验,得到最佳工艺参数:配铝系数为1.7,单位热效应为2850 kJ/kg,配石灰系数为0.9。该工艺条件下,冶炼效果较好,合金收率较高。对所得Ti-Al中间合金进行了XRD衍射,结果表明:Ti-Al中间合金的主要物相组成为Ti3.3Al。Abstract: Taking titanium pigment as raw material,experiments were conducted to prepare Ti-Al master alloy by aluminothermic reduction. Through single factor experiments,the optimum result was obtained with aluminum adding coefficient of 1.7,unit thermal effect of 2850 kJ/kg and lime adding coefficient of 0.9. Under this process condition,good smelting results and high yield of alloy were achieved. Analyzed by XRD diffraction,the phase compositions of the Ti-Al master alloy mainly consisted of Ti3.3Al.
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Key words:
- titanium pigment /
- aluminothermic reduction /
- Ti-Al master alloy
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