VACUUM VESSEL FOR COMPOSITE MATERIAL

摘要

PURPOSE:To enhance the permeability of high-energy particles and to maintain an ultrahigh vacuum by sticking an inorg. fibrous cloth impregnated with a synthetic resin on the outer periphery of a thin-walled metallic airtight vessel constituting the titled vacuum vessel of a composite material and reinforcing the vessel. CONSTITUTION:An aluminum alloy thick-walled part 2 having about 5mm thickness is provided on both ends of the aluminum alloy thin-walled pipe 1 and an aluminum alloy flange 3 having about 253mm outer diameter is further mounted thereon to form the vacuum vessel of a composite material. The vacuum vessel is resistant to an ultrahigh vacuum of 10<-10>Torr on the inside and is also resistant to the heating at 120 deg.C. Consequently, the ultrahigh vacuum can be maintained. The composite material of an aluminum alloy and a carbon fiber epoxy-impregnated cloth 1b having a high Young's modulus is used as the vessel wall-forming material to form the vacuum vessel.