First, the operation method of mold polishing
1. Mold polishing method and working principle Mold polishing usually uses oil stone strips, wool wheels, sandpaper, etc., so that the surface of the material is plastically deformed and the protruding part of the surface of the workpiece is removed to obtain a smooth surface, which is generally mainly manual operation.
2. There are many ways to polish molds, and the following are several common polishing methods.
Mechanical polishing Mechanical polishing is the method of grinding the surface of a mold using a rotating or vibrating tool to achieve a smooth finish. Common mechanical polishing tools include sandpaper, abrasive belts, polishing paste, and polishing powder.
3. Method Step Grinding the surface of the mold with a rough oil stone, when the mold is made by machining, some knife marks will be left on the surface, which needs to be smoothed, and the rough oil stone is used for polishing, and these knife marks can be ground off.
4. Master the working principle and process of polishing, and choose reasonable polishing methods and products, so as to improve the quality and life of the mold, and then improve the product quality and processing efficiency.
5. For the surface of the mold with high strength, only special tools for grinding and polishing with cleaning and soft oil stone are used. When changing the sand grade in grinding and polishing, the hands of the workpiece and the operator must be cleaned and tidy to prevent the coarse sand particles from being sent to the next level of fine grinding and polishing.
2. What are the common methods of mold polishing
1. Mechanical polishing is a polishing method that relies on cutting, plastic deformation of the surface of the material to remove the convex part after being polished and obtain a smooth surface, generally using oil stone strips, wool wheels, sandpaper, etc., mainly manual operation, special parts such as the surface of the rotary body, you can use auxiliary tools such as turntables, and the method of super-fine grinding and polishing can be used with high surface quality requirements.
2. Magnetic grinding and polishing is the use of magnetic abrasives to form abrasive brushes under the action of magnetic fields to grind the workpiece. This method has high processing efficiency, easy to control processing conditions, and good working conditions. With suitable abrasives, the surface roughness can reach Ra1 m.
3. What are the common polishing methods of plastic molds Electrolytic polishing Electrolytic polishing is basically the same as chemical polishing, that is, it selectively dissolves the tiny protruding parts of the surface of the material to make the surface smooth. Compared with chemical polishing, the effect of cathodic reaction can be eliminated, and the effect is better.
Fluid polishing Fluid polishing relies on high-speed flowing liquid and the abrasive particles it carries to wash the surface of the workpiece to achieve the purpose of polishing. Common methods are: abrasive jetting, liquid jetting, hydrodynamic grinding, etc. Hydrodynamic grinding is hydraulically driven, which causes the liquid medium carrying abrasive particles to reciprocate across the surface of the workpiece at high speed.
5. Method Step Mold polishing has two purposes; One is to increase the finish of the mold, so that the surface of the product out of the mold is smooth, beautiful and beautiful, and the other is that the mold can be easily demolded, so that the plastic is not glued to the mold and cannot be taken off.