FUEL CANISTER CONNECTION MEMBER, METHOD OF MANUFACTURING THE SAME, AND FUEL CANISTER

摘要

PROBLEM TO BE SOLVED: To provide an inexpensive fuel canister connection member capable of achieving both of the improvement of fuel-proof permeability and joining strength, and to provide its manufacturing method and the fuel canister. SOLUTION: This fuel canister connection member can be joined to the fuel canister, is made out of resin, has the cylindrical shape and is provided with a carbon thin film of a thickness of 0.05-5μm on a part excluding a joining part. The carbon thin film has a atomic ratio of carbon:hydrogen = 3:7 through 8:2. A coated face is exposed to plasma such as fluorine-containing gas, hydrogen gas and oxygen gas, and then the carbon thin film is formed to be used as the fuel canister connection member. The carbon thin film is formed by a plasma CVD method. A modulating process for reducing the plasma intensity is performed at least once for 10-120 seconds.