PRODUCTION OF EXTRA LOW OXYGEN TITANIUM BY CALCIUM HALIDE FLUX DEOXIDATION

被引：65

作者：

OKABE, TH ^{[1
]}

SUZUKI, RO ^{[1
]}

OISHI, T ^{[1
]}

ONO, K ^{[1
]}

机构：

[1] KYOTO UNIV,FAC ENGN,KYOTO 606,JAPAN

来源：

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1991年 / 77卷 / 01期

关键词：

CALCIOTHERMIC DEOXIDATION; LOW OXYGEN TITANIUM; CALCIUM; CALCIUM CHLORIDE; FLUX DEOXIDATION;

D O I：

10.2355/tetsutohagane1955.77.1_93

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Under co-existence of calcium and its oxide, the equiliblium oxygen content in titanium is 500 mass ppmO at 1273 K1)2). The advanced methods were examined to attain the lower oxygen level from the thermodynamic viewpoints. Calcium-halide fluxes may decrease the activity of by-product CaO so efficiently that Ca-CaCl2 and Ca-BaCl2 fluxes were experimentally applied for the deoxidation of titanium. Titanium wires and small pieces containing a few hundreds mass ppm were deoxidized as low as a few tens mass ppm by use of CaCl2 flux and calcium vapor at 1273 K. The oxygen sources to make worse the efficiency of the further purification of titanium were discussed and one of them was suggested to be the oxygen contamination in the flux.

引用

页码：93 / 99

页数：7

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