Title:
LEAD ALLOY MELTING METHOD
Document Type and Number:
Japanese Patent JPH0973924
Kind Code:
A
Abstract:
To retard the reduction of dross or efficiently recover a lead alloy from the dross by letting carbon and PbOx powder exist on the surface of molten metal.
2-5wt.% carbon powder and 2-5wt.% Pb3O4 powder, for example, based on the weight of a lead alloy are added to the surface of molten metal in a melting pot of a lead alloy device, then stirred. When only the carbon is added and only the Pb3O4 is added at a melting temperature of 700°C, for example, dross decreasing effect is small. By adding both of the carbon powder and Pb3O4 at the same time in the range of 2-5wt.%, for example, the reduction of the dross is retarded, or the lead alloy is efficiently recovered from the dross.
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Inventors:
INOUE TOSHIHIRO
SAKURAI KAZUMASA
SATO KOICHI
SAKURAI KAZUMASA
SATO KOICHI
Application Number:
JP22878295A
Publication Date:
March 18, 1997
Filing Date:
September 06, 1995
Export Citation:
Assignee:
MATSUSHITA ELECTRIC IND CO LTD
International Classes:
C22B7/00; C22B9/16; C22B13/08; H01M10/54; (IPC1-7): H01M10/54; C22B7/00; C22B9/16; C22B13/08
Attorney, Agent or Firm:
Tomoyuki Takimoto (1 person outside)
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