Tungsten carbide grinding disc manufacturers introduce the production method of tungsten carbide grinding discs

       Tungsten carbide grinding disc manufacturers introduce the production method of tungsten carbide grinding discs

The mortar is a grinding tool for grinding coarse materials into fine powder, also known as mortar or grinding disc. Common materials The bowl can be made of ordinary steel, high manganese steel, wear-resistant alloy, chrome steel, tungsten carbide and other materials. Tungsten carbide grinding discs are mainly used for the preparation of high hardness materials and powders without iron pollution, especially the powder preparation of X-ray fluorescence spectrometers. Tungsten carbide powder mill box vibrating crushers are widely used to prepare these powders. When working, put the material bowl into the eccentric vibrating machine and work for 3-5 minutes to make the material reach 80-300 mesh, which can be directly used for testing.

Because tungsten carbide powder itself cannot be formed, it can be sintered by adding cobalt. Therefore, the material for making the tungsten carbide bowl is complicated. The higher the tungsten carbide content, the harder the bowl, but the lower the strength and brittleness. So choose the right ratio. The shell of the tungsten carbide material bowl is made of ordinary 45# steel, and then the inner lining made of tungsten carbide material is inserted into the shell. Although the material bowl has high hardness and good wear resistance, it is not allowed to bump. Proper use can prolong the life of the bowl, and the sample should be evenly distributed between the solid block, ring and bowl wall when loaded.



Traditional grinding discs usually use low-strength materials such as paper or cloth as the base, and then use resin glue to bond natural abrasives or artificial abrasives to the base, so that it is easy to wear and scrap the grinding disc during heavy-duty grinding. The tungsten carbide grinding disc is made of iron plate or stainless steel as the base, and is coated with abrasive grains made of tungsten carbide material with high strength, high hardness and good wear resistance. It has the characteristics of high hardness, good toughness and reusability. Let's take a look at the production steps and methods of tungsten carbide grinding discs.



1) Before manufacturing, the surface of the iron plate or stainless steel substrate needs to be polished with fine sandpaper to remove rust.



2) Put it in alkaline degreasing solution, degreasing with 3VDC voltage for 3 minutes, rinse with hot and cold water alternately.



3) Soak it in 11 of hydrochloric acid for 3-5 minutes to remove the oxide layer on the surface of the substrate.



4) After the substrate is activated, connect the electrodes, immediately fill the electrolytic cell, shock at twice the normal current density for 1 minute, and then electroplate at the normal current density for 15-20 minutes to form a plating layer with a thickness of 3-5m on the surface of the substrate.



5) Coat the surface of the pre-plated substrate with a thick conductive adhesive composed of polyvinyl alcohol, glycerin, carbon black, etc.



6) Artificially implant tungsten carbide abrasive grains into the matrix coated with conductive glue, and then electroplate at a current density of 11 for 12-14 hours. 5-8A/dm2.



7) Fix the product with tungsten carbide abrasive grains, and then thicken the coating by 0.4-0.5 mm according to the normal current density.



The abrasive grains of the tungsten carbide abrasive disc produced by the above steps are evenly, orderly and smooth arranged on the iron plate or stainless steel plate, the abrasive grains are firmly attached and can be recycled. , Thank you for watching. If you have any questions, you can contact the customer service staff of our tungsten carbide grinding disc manufacturers. I wish you a good mood every day!