Patch for preventing carburization, nitriding or oxidation, and method of preventing carburization, nitriding or oxidation

摘要

A patch for preventing carburization, nitriding or oxidation comprises:PPa film comprising a heat-fusible or heat- meltable particulate material having an anti-carburizing, anti-nitriding or anti-oxidizing effect and a heat-decomposable resin as a binder; andPPa heat-resistant silicone pressure sensitive adhesive, which is decomposed at a carburizing, nitriding or oxidizing temperature, provided on one side of the film.