Title:
METHOD FOR POURING THERMITE WELDING METAL
Document Type and Number:
Japanese Patent JP3515805
Kind Code:
B2
Abstract:
PURPOSE: To improve the quality of welding by eliminating the variance of time which, starts the pouring of molten metal in a thermite welding.
CONSTITUTION: Detecting terminals 9 for molten metal composed of one pair of insulated electric conducting materials are inserted into the inner part or the outer edge part of bottom layer part in thermite solvents 1 piled through a flow-out hole 4 from the bottom part of a crucible. Further, a flat plate 5 is in the closely contacting condition with the bottom surface 27 of the crucible to close the flow-out hole 4, and thermite reaction is started and then, at 10-35sec after shortening the circuit by melting the detecting terminals 9 when the reaction reaches the bottom part of the crucible, the flat plate 5 is instantially slided in the horizontal direction and the flow-out hole 4 is opened to pour the molten metal.
Inventors:
Karimine, Kenichi
Okumura, Makoto
Sekiguchi, Susumu
Washitani, Toshimi
Sato, Yuzo
Okumura, Makoto
Sekiguchi, Susumu
Washitani, Toshimi
Sato, Yuzo
Application Number:
JP6653794A
Publication Date:
April 05, 2004
Filing Date:
March 11, 1994
Export Citation:
Assignee:
NIPPON STEEL CORP
MISHIMA KOSAN CO LTD
MISHIMA KOSAN CO LTD
International Classes:
G01K7/02; B23K23/00; (IPC1-7): B23K23/00; G01K7/02
Attorney, Agent or Firm:
萩原 康弘
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