Novel prevent stopper of metal hole oxidation

The utility model relates to a novel prevent stopper of metal hole oxidation belongs to the metal surface treatment technical field. The spring steel hollow cylinder that polytetrafluoroethylene hollow cylinder that the stopper was made by polytetrafluoroethylene and spring steel were made constitutes, polytetrafluoroethylene hollow cylinder's outer diameter is measure -alike with metal work bore diameter, and polytetrafluoroethylene hollow cylinder's hole is equipped with macropore and aperture, and the setting of spring steel hollow cylinder is downthehole greatly polytetrafluoroethylene hollow cylinder's, and spring steel hollow cylinder goes up processing has the open slot. The utility model discloses rational in infrastructure simple, manufacture easy, through the utility model discloses, make the metal work hole metal work's surface oxidation treatment in -process not by the oxidation, be provided with the open slot on the spring steel hollow cylinder, spring steel hollow cylinder can form spring steel hollow cylinder's opening in open slot department, under spring steel hollow cylinder's spring action, but novel prevent stopper of metal hole oxidation repetitious usage.