Definition and function of electrical control systemThe so-called electrical control system refers to the combination of several electrical components to realize the control of one or some equipment objects, so as to ensure the safe and reliable operation of the controlled equipment.
Pretreatment is the basic process before the workpiece gets coated. Remove various stains and impurities (such as lubricating oil, emulsion, grease, rust, oxide skin, welding slag, saline- alkali spots, dust, etc.) from the surface of the workpiece to make it clean and free of stains.