チタン又はチタン合金製スクラップの溶解方法

Title:

チタン又はチタン合金製スクラップの溶解方法

Document Type and Number:

Japanese Patent JP4652537

Kind Code:

B2

Abstract:

PROBLEM TO BE SOLVED: To firstly provide a method for simultaneously and efficiently melting a large amount of Ti scrap and to secondly provide the method for melting the Ti scrap which is free of inclusions. SOLUTION: Firstly, in the method for melting the titanium or titanium alloy scrap by using a cold crucible induction melting device, the induction melting is executed by charging the scrap into the melting device in such a manner that the small-sized scrap having the sphere equivalent diameter below twice bore of a tapping nozzle does not enter the space in the tapered part of the upper part of the topping nozzle before and after the start of the melting. Secondly, in the method for melting the titanium or titanium alloy scrap containing high melting materials as foreign matter, the titanium or titanium alloy scrap is melted and thereafter, the titanium or titanium alloy scrap is held in the state of the molten metal in the crucible for >=10 minutes.

Inventors:

Motohiro Nagao
Shingo Nagikawa
Kusamichi Tatsuhiko

Application Number:

JP2000255491A

Publication Date:

March 16, 2011

Filing Date:

August 25, 2000

Export Citation:

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