| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide techniques in which in the case of using a material having light weight and sufficient strength such as magnesium material as an electronic component box body, the corrosion resistance as a problem is secured and also, various kinds of treating liquid such as chemical conversion liquid which is used for giving the corrosion resistance and acid, alkali, and washing water are not remained in the box body after welding, and further the welded mark on the outward appearance does not occure. <P>SOLUTION: After forming a corrosion resistant film by applying the surface treatment on both of a magnesium-made electronic component box main body and a magnesium-made member, this electronic component box body is obtained by performing a laser beam spot welding to both. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
