Electric heating – Metal heating – By arc
Patent
1997-03-28
1998-12-29
Shaw, Clifford C.
Electric heating
Metal heating
By arc
21913001, 21914522, B23K 924
Patent
active
058544623
ABSTRACT:
Provided is a stainless-steel flux cored wire electrode with excellent arc stability and good workability with less sputter generation, which can attain the overall sputter reduction and arc stability and can further prevent instantaneous arc disorders and sputter generation at a higher level to form a high-quality weld metal. A stainless-steel flux cored wire electrode comprising a flux filled in the stainless-steel housing at 10 to 30% to the total weight of the wire electrode, wherein the wire electrode temperature is measured and recorded on the recording chart of a temperature recorder, which chart is scaled in such a manner that the 100.degree. C. corresponds to 5 cm and the 100 mm wire electrode length corresponds to 1 cm, by passing electricity through appropriate two points, apart 300 mm to 1,000 mm from each other, in the wire electrode in the longitudinal direction, to electrically heat the wire electrode to 500.degree. to 1,000.degree. C., and wherein the ratio (K value=L1/L0) of the length (L1) of a temperature-distribution curve on the recording chart to the base line length (L0) corresponding to the measured wire electrode length is 2.5 or less, preferably 1.5 or less.
REFERENCES:
patent: 4005309 (1977-01-01), Zvanut et al.
patent: 5124529 (1992-06-01), Nishikawa et al.
patent: 5219425 (1993-06-01), Nishikawa et al.
patent: 5378871 (1995-01-01), Nishikaw et al.
Haginoya Teru
Maruyama Toshiharu
Nishiyama Shigeki
Ogawa Tsuneshi
Ozaki Shintaro
Kabushiki Kaisha Kobe Seiko Sho
Shaw Clifford C.
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