Method for blackening the surface of Robot Micro Screws

(1) After cleaning the surface of the Robot Micro Screws, add it to a vacuum chamber, raise the temperature in the vacuum chamber to 150~200℃, and keep it warm for 30~40min.

Then, introduce silane gas into the vacuum chamber, raise the temperature of the vacuum chamber to 350~380℃, keep it warm for 6~7 hours, take out the Robot Micro Screws, and cool it to room temperature;

(2) Put the Robot Micro Screws treated in the steps

into the blackening liquid, blacken it for 10~15min, take it out, clean it, and obtain the finished product. This method for blackening the surface of Robot Micro Screws is simple to operate, low in cost, and the Robot Micro Screws obtained are black and uniform on the surface. The film layer has excellent corrosion resistance, and the blackened film will not fall off easily during use. It has excellent wear resistance, which greatly improves the quality of Robot Micro Screws.