Cryogenic Linear Guide Shafts for Arctic LNG Loading Arms: 600 mm Strokes at −45 °C
Two hundred kilometres north of the Arctic Circle, 12 m cantilever loading arms fold and unfold to connect 400-ton LNG hoses. The hydraulic actuators ride on linear guide shafts that must survive −45 °C cold starts, 350 bar surge loads, and 30-year salt-spray exposure without a single defrost cycle. Cryogenic metallurgyStandard 52100 steel becomes brittle below −30 °C;...
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