Manufacture and test of seismic bellows for ITER magnet feeder
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- 作者：Chen Liua ; liuchen@ipp.ac.cn" class="auth_mail" title="E-mail the corresponding author ; Kun Lua ; Liang Shengb ; Yuntao Songa ; Jinjin Sua ; Man Suc ; Chenyu Gungc
- 关键词：Seismic bellows ; Pressure cycle test ; Fatigue test ; Leak test
- 刊名：Fusion Engineering and Design
- 出版年：2016
- 出版时间：1 November 2016
- 年：2016
- 卷：109-111
- 期：part_PA
- 页码：515-520
- 全文大小：2279 K
文摘
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The design of the double bellows was iterated with the results of analysis based on the Expansion Joint Manufacturers Association (EJMA) standard.
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The seismic bellows was tested with cyclic pressurization of the interlayer space to 2 bars absolute pressure for 5 cycles.
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200 cycles of tensile fatigue test with 90 mm of stretching from the nominal design length.
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A full tensile test with 315 mm of stretching from its nominal length was conducted.
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The prototype bellows was qualified for its leak tightness (less than 1 × 10−9 Pam3/s of helium) at all time during the qualification test.