CONNECTING METHOD AND CONNECTING MEMBER USING FLEXIBLE METALLIC GAS TUBE

PURPOSE: A method for manufacturing a metal corrugated hose for gas and a metal corrugated hose thereof are provided to secure safety when supplying gas by improving air tightness through stress by fluid vibration, pressure flow, and flexural deformation. CONSTITUTION: A method for manufacturing a metal corrugated hose for gas comprises: a step of heat treatment and cutting a hose(S-1), a step of fixing the hose(S-2), a step of inserting a joint nut(S-3), a step of installing a stop ring(S-4), a step of compressing an end reinforcement unit(S-5), a step of grinding inner surface of the end reinforcement unit(S-6), a step of installing a metal packing for reinforcing air tightness and rigidity of the corrugated hose by inserting the metal packing into a hole penetrated on the inclined surface of inner surface of the end reinforcement unit(S-7), a step of detecting the leakage of the gas(S-8), and a step of screw-connecting the joint nut to the other connection hole(S-9). [Reference numerals] (S-1) Step of heat treatment and cutting a hose; (S-2) Step of fixing the hose; (S-3) Step of inserting a joint nut; (S-4) Step of installing a stop ring; (S-5) Step of compressing an end reinforcement unit; (S-6) Step of grinding the inner surface of the end reinforcement unit; (S-7) Step of installing a metal packing; (S-8) Step of detecting gas leakage; (S-9) Step of screw connection