Title:
【発明の名称】超硬合金の脱酸素
Document Type and Number:
Japanese Patent JPH05504997
Kind Code:
A
Abstract:
A process for the deoxidation of a refractory metal containing minor concentrations of oxygen is disclosed. In this process the refractory metal is contacted with a metallic deoxidant in a dry, inert atmosphere. The metallic deoxidant and the refractory metal are heated to at least liquefy the metallic deoxidant and at least partially deoxidize the refractory metal. The refractory metal is thereafter cooled and contaminants on its surface are removed.
Inventors:
Richard El, Fischer
Application Number:
JP50639291A
Publication Date:
July 29, 1993
Filing Date:
February 21, 1991
Export Citation:
Assignee:
RMI Titanium Company
International Classes:
B22F1/00; B22F9/20; C21D3/02; C22B3/06; C22B5/04; C22B9/04; C22B9/10; C22B34/00; C22B34/12; C22B34/14; C22B34/20; C22B34/30; C22B60/02; C22C1/06; C22F1/18; (IPC1-7): B22F1/00; B22F9/20; C21D3/02; C22B9/04; C22B9/10
Attorney, Agent or Firm:
Masatake Shiga (3 outside)