| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a galvanized steel for laser welding, to provide a production method therefor, and to provide a laser welding method. <P>SOLUTION: The galvanized steel for laser welding is obtained by providing at least a part of the surface of a steel to which galvanizing or galvannealing is applied by a zinc coating weight of≥20 g/m<SP>2</SP>per side with a film comprising metal oxide. The metal oxide is the one having a melting point of≤1,500°C and a boiling point or a decomposing temperature of≥1,700°C under ordinary pressure, or the one oxidized or reduced by heating under ordinary pressure and changeable into a metal oxide having a melting point of≤1,500°C and a boiling point or a decomposing temperature of≥1,700°C, or a mixture or multiple oxide of the above metal oxides. <P>COPYRIGHT: (C)2004,JPO&NCIPI</p> |
