COPPER-FREE WIRE FOR GAS-SHIELDED ARC WELDING
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United States of America Patent
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Issued Date -
Feb 22, 2007
app pub date -
Aug 8, 2006
filing date -
Aug 22, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
Disclosed is a copper-free wire for gas-shielded arc welding featuring superior arc stability, excellent deposition efficiency and high melting rate, wherein the wire has a flat-shaped worked surface, and depressions of a negative direction (toward the center of the wire) with respect to the worked surface formed in a circumferential direction of the surface, a ratio of an actual length (dr) of a circular arc to an apparent length of a circular arc (di) (dr/di) lies within a range of 1.015 to 1.515, and a chemical composition ratio {Cu/(Si+Mn+P+S)}.times.100 lies within a range of 0.10 to 0.80.
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