The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Dec. 29, 1998

Filed:

Mar. 28, 1997
Applicant:
Inventors:

Tsuneshi Ogawa, Fujisawa, JP;

Teru Haginoya, Fujisawa, JP;

Toshiharu Maruyama, Fujisawa, JP;

Shigeki Nishiyama, Fujisawa, JP;

Shintaro Ozaki, Fujisawa, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
2191 / ; 21913001 ; 21914522 ;
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.


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