| 摘要 |
PURPOSE:To achieve absorption of variation in the margin for force fit and a sealing by filling a winding stem pipe force-in hole on the middle and the force- in section of the winding stem pipe with a low melting soft metal. CONSTITUTION:The outer surface of a winding stem pipe 11 is plated or coated with a low melting point soft metal (for example, In or In+Sn alloy). The winding stem pipe 11 is forced into the hole of the winding stem pipe on the middle 13. |
