Six polishing abrasives Detailed analytical methods

 1, the mechanical polishing : mechanical polishing is plastically deformed by the cutting surface is polished to remove the convex portions obtained by a smooth surface polishing method generally used Whetstone , wool wheel , sandpaper , abrasive belt , nylon wheels, manual operation is Lord, special parts such as body surface rotation , you can  abrasive fibre disc use the turntable and other aids, high surface quality requirements can be thrown over lapping method . Super abrasive lapping and polishing is a special abrasive in polishing liquid containing abrasive , and pressed on the surface of the workpiece to be machined for high-speed rotation. The polishing method is the highest age . Optical lens mold often use this method , chemical polishing : chemical polishing is to make the material in the chemical medium surface micro- convex and concave portions preferential dissolution of some of the more , resulting in a smooth surface . The main advantage of this method is that the device does not need a complex , the complex shape of the workpiece can be  metal cutting wheel polished , many workpieces can be simultaneously polished , high efficiency. The core problem is formulated chemical polishing polishing solution 3 , electrolytic polishing : electrolytic polishing and chemical polishing the same basic principle , namely by selectively dissolving the surface of fine convex portions , the surface smooth. Compared with chemical polishing, can eliminate the impact of the cathodic reaction , the effect is better. Electrochemical polishing process of leveling the macro and micro leveling . 4 , ultrasonic polishing : the workpiece into the abrasive suspension and placed in an ultrasonic field together , relying on the role of ultrasonic oscillations , so that the abrasive grinding and polishing the surface of the workpiece . Ultrasonic machining macroscopic force is small , does not cause deformation of the workpiece , but the tooling fabrication and installation more difficult. Ultrasonic machining can be combined with chemical or electrochemical methods. In the etching solution , based on the electrolysis , the solution was stirred and then applying ultrasonic vibration to the workpiece surface from the lysate , or near the surface of the electrolyte uniform corrosion ; ultrasonic cavitation in a liquid is also possible to suppress the corrosion process , in favor of the surface luster . 5 , fluid polishing : polishing fluid is relying on high-speed flow of liquid abrasive scouring and polishing the surface to achieve the purpose of carrying . Common methods are : silicon carbide abrasive jet machining , liquid jet machining , grinding fluid power . Fluid energy mill is driven by hydraulic medium that carry high speed abrasive liquid flow through the reciprocation of the workpiece surface. Medium used mainly in low pressure flowing through specific compounds and mixed with good abrasive made ​​from silicon  Grinding wheel china carbide abrasives abrasive powder can be used . 6 , magnetic polishing : Magnetic polishing using abrasive in the magnetic field of magnetic abrasive brush formed on the workpiece grinding. This method is the high processing efficiency , good quality and processing conditions, easy to control, good working conditions. Using a suitable abrasive surface roughness can be achieved Ra0.1μm.
 Plastic mold with the polishing surface of said polishing required in other industries are very different , strictly speaking , do abrasive polishing abrasive should be called mirror finish . It is not only for polishing itself has high demands and surface flatness, smoothness and geometric accuracy is also very high standard. Surface finish is generally only required to get shiny surface . Mirror processing precision molds or mechanical polishing based.