Guide sleeve for clutch releasing system of gearbox of motor car, has metallic workpiece manufactured by deep-drawing method, where sleeve is made of semi-finished sheet product to be coated with film before performing deep-drawing method

摘要

The sleeve has a metallic workpiece i.e. deep-drawn workpiece, manufactured by a deep-drawing method, where the sleeve is made of a semi-finished sheet product, which is coated with a film before performing the deep-drawing method. The film consists of a polyether ether ketone(RTM: colorless organic polymer thermoplastic) or PTFE. Two sides of the semi-finished sheet product are coated with the film that is designed with narrow thickness tolerances. A coated strip is fastened with a bonding agent i.e. temperature-resistant adhesive tape.