溶接学会論文集
Print ISSN : 0288-4771
封緘溶接時のふくれ現象の解明と防止方法の検討
ジルコニウム合金管の溶接に関する研究(第1報)
小室 孝次郎三嶋 輝昭黒沢 哲坪井 一
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1993 年 11 巻 4 号 p. 493-497

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The swell-out phenomenon will occur at seal welding of a receptacle such as tubing which has some inner gas volume.
This study has been conducted to make clear this phenomenon experimentally and to develop its preventative technology at the seal welding of Zircaloy-2 tubing.
The swell-out ocurred at inside of welded metal when the pressure difference between inside and outside reached a critical value by increase of inside pressure, and the swell-out was developed toward outside as the pressure increased.
We have developed a welding technology to effectively prevent the swell-out above.

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