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ボルト注油機

2017-11-02View Original

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資料によると、点検が必要な配管で、配管の温度が250度以上の場合、配管の温度が150度以下に下がったら、取り外すボルトに機械油を塗る必要があるそうです。みんな、なぜ機械用オイルを注ぐのか教えてください。ポイントあります
Reply #22017-11-06
ボルトは高温と予圧の影響でねじ山同士が「接着」してしまい、冷却後には取り外せなくなるため、冷却時に機械油や防食剤などを塗布する

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