| 摘要 |
Disclosed herein is a copper-plated wire for gas-shielded arc welding. In the copper-plated wire, wire surface, from which a plated layer is removed, has a prominence and depression (<img id="custom-character-00001" he="3.13mm" wi="2.79mm" file="US20060118537A1-20060608-P00900.TIF" alt="custom character" img-content="character" img-format="tif"/><img id="custom-character-00002" he="3.13mm" wi="2.46mm" file="US20060118537A1-20060608-P00901.TIF" alt="custom character" img-content="character" img-format="tif"/>) shape on a circumference of a cross section in a direction of 90 degrees to a length of the wire, such that a ratio (dr/di) of an actual circular arcs length (dr) to an apparent circular arcs length (di) is in the range of 1.015-1.815. The wire has the prominence and depression (<img id="custom-character-00003" he="3.13mm" wi="2.79mm" file="US20060118537A1-20060608-P00900.TIF" alt="custom character" img-content="character" img-format="tif"/><img id="custom-character-00004" he="3.13mm" wi="2.46mm" file="US20060118537A1-20060608-P00901.TIF" alt="custom character" img-content="character" img-format="tif"/>) shape in a longitudinal direction of wire, such that a ratio (lr/li) of an actual measured length (lr) to an apparent measured length (li) is in the range of 1.015-1.515. The wire has improved surface characteristics of wire, so that adhesion between a substrate wire and a plated layer becomes excellent during copper plating on the wire surface, thereby remarkably enhancing the rust resistance and the feedability of wire in comparison to the conventional technology.
|
