| 摘要 |
PURPOSE:To obtain the economic modifier unnecessary for the process where steel is manufactured by melting, by agglomerating titanium powder and iron powder. CONSTITUTION:The modifier adding titanium component into steel is manufactured by, for example, compressive forming of the mixture of titanium powder and iron powder to lumpy state. Though the particle size of titanium powder is not limited, it should, as a rule, be preferably about 60 mesh at the max. Further, iron powder should be preferably about 60 mesh at the max, too, and that used for powder metallurgy should be, as a rule, preferable because of its high purity. Though the mixing ratio of titanium powder and iron powder may be variously changeable according to the final purpose for modification, the percentage of titanium powder should preferably be about 10-90wt% of total amount. Further, for the size of lump, 5-100g degree per one piece is easy to be used. This modifier indicates the same effect as that of traditional modifier consisting of ferrotitanium alloy. |
