Brushless dc gear motor controller is composed of main body of the motor and drive, is a typical mechatronics product. Their specific polishing type is introduced as follows. 1, fire polishing: by using flame surface of brushless dc gear motor controller softening baking, thermal shock, can remove the surface of some twill, wrinkled skin, after a lot of cutting mouth are mouth fire polishing, but this kind of treatment method can reduce the roughness on the surface of the brushless dc gear motor controller. 2, the use of polishing powder, polishing, this way is to high speed machine surface friction to remove scratches, must first before polishing abrasive belt grinding was carried out on the polishing parts, the way using a lot of material, the effect is best is cerium oxide, but this process is slow. 3, acid treatment and polishing: using the acid corrosion on the surface of the brushless dc gear motor controller role for surface treatment, brushless dc gear motor controller also need before polishing abrasive belt grinding, because of the acid polishing will cut the thickness of the device itself, but also not necessarily can be removed from the surface all lines. Polishing is the production of brushless dc gear motor controller is a key process, determines the quality of the machine, so it is necessary for us to master the knowledge very well. More wonderful welcome you continue to pay attention!