| 摘要 |
PURPOSE:To improve the accuracy of analyzing the nitrogen incorporated in titanium, etc. by allowing nickel of 7-17 times the weight of a sample for analysis of titanium to coexist in the sample then melting the same at 2,700- 3,000 deg.C. CONSTITUTION:The form in which the sample for analysis of titanium is enclosed with plate-shaped nickel and is united thereto is more preferable to form an adequate molten bath in the stage of melting the nickel together with said sample. The sample 1 is thereupon inserted into a nickel pipe 2 manufactured so as to conform to the shape of the bar-shaped sample 1 and a vent hole is provided to the pipe end to make the sample into a capsule type. The sample and nickel are compounded in this stage at the ratio of the nickel of 7-17 times the weight of the sample. The melting and extracting temp. is made 2,700-3,000 deg.C, by which the molten bath of the nickel and titanium is quickly formed. The extraction of gaseous nitrogen is accelerated and the accuracy and speed of the analysis are improved. |
