| 摘要 |
PURPOSE: A gasket of a middle flange and a manufacturing method thereof are provided to prevent exhaust gas from leaking by integrally forming an anti-leakage unit which is used as an O-ring. CONSTITUTION: A gasket(100) of a middle flange is attached to a connecting surface of a flange connected to components of an exhaust structure in an engine. The gasket comprises a gas hole(110), in which high temperature exhaust gas passes through. An anti-leakage ring(120), which prevents the exhaust gas from leaking is formed on an inner surface of the gas hole. The anti-leakage ring is made by a curling process, and comprises an internal space. |
