| 摘要 |
PURPOSE:To achieve a higher workability, by inserting a bag body into a tube so as to be in tight contact with the inner surface thereof when expanded while a part of the bag body is made to contact a tiny hole closely. CONSTITUTION:With a ram's head 1 separated from a quencher body 2, a bag body 10 flat is inserted into the quencher body 2 while a fluid injecting tube 11 is drawn outside after inserted through the head 1 and connected to a pressure fluid supply means 7. The pressure of a pressurizing line as given when the means 7 is actuated is monitored with a thermometer 12 for the bag body. A small projection 13 is provided at a part of the surface of the bag body 10 corresponding to a tiny hole 3 of the body 2. Then, the head 1 and the quencher body 2 are put together to weld the joint. A protection sleeve 14 is fitted over the quencher body 2 and the outside of the tiny hole 3 is covered and a pressure fluid is fed into the head 1 and the quencher body 2 from the means 7 while being fed into the bag body 10. Here, the pressure P1 of the bag body 10 is made higher than the internal pressure P2 of the head 1 and the like to create a sealed state. Moreover, the tip of the small projection 13 gets into contact with a sleeve 14 to check a component wall from popping out.
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