Flux cored wire for gas shield arc welding
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United States of America Patent
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Issued Date -
Apr 14, 2005
app pub date -
Dec 29, 2003
filing date -
Oct 13, 2003
priority date (Note) -
Abandoned
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Abstract
Disclosed herein is a flux cored wire for gas shielded arc welding which comprises a seam section for improving the rectilinear property of the wire, thereby preventing the occurrence of bead meandering. The flux cored wire for gas shield arc welding is manufactured by forming a metal sheath, packing the inside of the metal sheath with a flux, followed by forming into a metal pipe shape and wire drawing and satisfies Relationship (1) below:
1.4≦(Rrcts/Ructs)≦4.0  (1)
- wherein Rrcts represents the range of tensile strength of real cross section (real tensile strength range in a state where the flux is packed), and
- Ructs represents the range of tensile strength of unpacked cross section (real tensile strength range in a state where the flux is unpacked).
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