| 摘要 |
<p>PURPOSE:To prevent generation of leakage even in a condition where excitation is generated, by forming an installing hole penetrating through a shaft core, and welding the fitting parts of the circumferential wall near the end edge of the opening, in the condition to place a pair of members continued to the rear side of a cap shape body, and making the installing hole coincident to the same axis. CONSTITUTION:In a pair of members 1 and 1', an insulating hole 3 to a base body with a fastening bolt is penetrated to the shaft core of a flat seat surface being the head side made of a steel plate. And, continued to a cap form body furnishing a circular recessed groove flow passage 2 linking to the installing hole 3, a branch wall 4 of almost a semiconductor section linking to the recessed groove flow passage 2 is provided projecting integrally at the rear side of the cap form body. Placing the installing hole 3 in the condition coincident to the same axis, the circumferential walls near the end edge at the side of the opening end are contacted each other and soldered 5. As a result, a tentative mutual installing work is unnecessary, no flowing-out of the molten solder to the outside is generated, and a hot solder fusion can be carried out easily.</p> |
