| 摘要 |
PURPOSE:To surely prevent the formation of electroplating layer in a part where plating is not required. CONSTITUTION:A grill body 2 is subjected to electroless plating, by which an electroless plating layer 15 is substantially formed in the entire part on the front surface exclusive of bottom 11a of line groove 11 having an approximately V-shaped section. The electroless plating layer 15 of the boundary part between the part where the plating is required and the part where the plating is not required is cut by using a cutter 20 and sliding the part of the line groove 11. Even if the electroless plating layer 15 is formed in the bottom 11a of the line groove 11, the electrical conduction of the part where the plating is not required is no longer electrically conducted at the time when the part where the plating is required, is electrically conducted in the ensuing electroplating stage. Then, the formation of the electroplating layers in the part where the plating is not required does not arise. In addition, the electroless plating layer 15 of the part where the plating is not required is dissolved in the respective plating solns. in the electroplating stage.
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