There are many grinding materials for grinding tools, such as abrasive belts, sandpaper, grinding wheels, flap disc, polishing fluids, and polishing pastes. Let us learn about the flap disc today.
The flap disc has the characteristics of good elasticity and does not burn the workpiece when grinding, and is mostly used in angle grinders or electric machines. The flap disc is widely used in welding seam grinding of ships, bridges, automobiles, airplanes, and stainless steel products, as well as large-area degreasing, rust removal, and mold and electroplating trimming and polishing. To make the grinding fluid play a full role in the grinding process, the supply method of the grinding fluid cannot be ignored.
The grinding fluid is supplied by the pouring method, and the grinding fluid of the abrasive material is often difficult to enter the grinding area during grinding. The main reasons are as follows:
1. The air in the pores on the end face of the grinding wheel flows from the center to the circumference of the grinding wheel due to the centrifugal force. The larger the pores of the grinding wheel and the higher the rotational speed, the greater the impact.
2. Influenced by the grinding wheel cover, the dynamic pressure of the airflow is increased by about 50% on average compared with the cover with the cover.
3. When the grinding wheel rotates, a rotating airflow is also generated around it. The higher the grinding wheel speed, the greater the influence of the airflow.
The flap disc is made of plastic or fiber mesh cover and abrasive cloth sheets, suitable for angle grinders. Generally, there are 36 pages, 56 pages, 72 pages, and 80 pages.
The particle size is generally between 40#-320#.
The materials are brown corundum, zirconium corundum, silicon carbide, etc.
Abrasive material flap disc can be used for various types of surface rust removal, paint removal, burr removal, and welding seam grinding of metal and non-metallic materials in shipbuilding, automobile, aviation, machinery, instrumentation, bridge and construction industries and furniture.
