CRYOGENIC TANK SHELL AND METHOD OF ITS MANUFACTURE Russian patent published in 2001 - IPC

FIELD: construction of tanks. SUBSTANCE: internal casing is made of aluminum alloy, and external casing is manufactured from carbon-plastic composite material. Casings are glued to each other with preliminary stress in them created due to supercharging in process of glueing of casings and/or charging of tank with cryogenic medium. Prior to assembling with external casing, internal casing is supercharged till its standard form is obtained. Prior to assembling, parts of external casing are subjected to working on mandrel following external shape of internal casing. External casing is glued on supercharged internal casing with prestress created in casings. Then repeated final pressurization is performed, and tightness is checked. EFFECT: reduced mass of casings and labor intensity. 5 cl, 1 dwg