ジョイントシートガスケット特性の経時変化について

書誌事項

タイトル別名
  • Property Change of Joint Sheet Gaskets at High Temperature
  • ジョイントシートガスケット トクセイ ノ ケイジ ヘンカ ニ ツイテ

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抄録

The use of asbestos gaskets in pipe-flanges has already been prohibited in Japan. Nowadays, non-asbestos gaskets, of which materials are PTFE, expanded graphite, etc. , are used in industries. Gasket users expect the non-asbestos gaskets to have better performance than that of asbestos gasket. So far, non-asbestos gaskets have not gained high reliability as gasket users do not have long term data in terms of the life of gaskets. <br>In this paper, the thermal endurance life of non-asbestos gaskets and asbestos gaskets were tested. The gaskets were held at several constant temperatures, such as 200°C, 214°C, 260°C, 280°C and 300°C, and the weight loss, the change of axial bolt force and sealability are measured using a test rig. The thermal endurance life is estimated using the Arrhenius equation and discussions are made on the non-asbestos-gasket life.

収録刊行物

  • 圧力技術

    圧力技術 48 (4), 200-204, 2010

    一般社団法人 日本高圧力技術協会

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