Production method for scroll |
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| 申请号 | JP20100881 | 申请日 | 1981-12-15 | 公开(公告)号 | JPS58104385A | 公开(公告)日 | 1983-06-21 |
| 申请人 | Mitsubishi Heavy Ind Ltd; | 发明人 | MATSUDA KEIICHI; NAGATA JIYUNICHI; | ||||
| 摘要 | PURPOSE:To produce a scroll in a high precision and a low cost by fitting several convex parts provided on the bottom of a lap into blind holes on a mirror board and welding them at contacting parts. CONSTITUTION:A projection 11 of a lap 10b is inserted into a blind hole 12 on a mirror board 10a to combine the lap with the mirror board. Then, adding a power A from above the projection 11, the lap 10b is resistance-welded to the mirror board 10a. In this construction, the top of the projection 11 is melted for depositing the lap 10b with the mirror board 10a. As l1=l2 after the welding, the scroll can be produced in a high precision and a low cost. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
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