| 摘要 |
A pipe sealing structure for forming a thermal pipe is formed by steps of performing a reduced cross sectional area less than the cross sectional area of the opening thereof to form an extended region, clamping a portion of the extruded region into a collapsed portion, cutting the outer end of the collapsed portion, and peforming a spot welding on the cut outer end of the collapsed portion. Furthermore, additional steps including selectively determining a predetermined length of the thermal pipe, forming a reduced size portion of the pipe at the predetermined length are added to the manufacturing procedure.
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