A novel method is provided for treating metallic or ceramic surfaces (hot plates, metallic molds and the likel at a high temperature of 200°C or above, wherein organic treating agents (finishes, release agents and the like) will not form a tar or sludge. According to this method, the continuous operation can be conducted due to neither stanining on the metallic surfaces nor stop of the machine for a heater cleaning. Examples of the organic treating agents to be used include a polyalkylene glycol thermally decomposable at 150°C or above in air and a fluorine-containing compound, preferably the nonionic type, having a fluoroalkyl group in the molecule.
本发明提供了一种在 200°C 或以上高温下处理
金属或陶瓷表面(热板、
金属模具等)的新方法,其中有机处理剂(整理剂、
脱模剂等)不会形成焦油或污泥。根据这种方法,既不会在
金属表面形成污垢,也不会因清洗加热器而停机,因此可以进行连续操作。可使用的有机处理剂包括可在 150°C 或更高温度下在空气中热分解的聚亚烷基二醇,以及分子中含有
氟烷基的含
氟化合物(最好是非离子型)。