Production process of resin grinding wheel
The grinding wheel is the most important type of grinding tool used in grinding, which is used to polish the product. There are many different materials for the grinding wheel, and one of the resin grinding wheels is very common. Resin grinding wheel has high strength and certain elasticity. It is widely used in aluminum alloy door and window processing, construction industry, shipbuilding, machining, automobile maintenance, electronic medical industry, metallurgy, DIY & woodworking industries.
Let us tell you the production process of resin grinding wheel
The key to mixing materials is to uniformly agitate the resin, filler, colorant, and corundum. The molding compound should meet the following requirements: The components are uniformly distributed on the surface of the abrasive to maintain looseness. However, it is not advisable to have obvious powder leakage, and it is necessary to ensure uniform distribution and good molding performance.
Grinding wheel Raw material formula |
Resin
| liquid | Powder |
|
Corundum | Aluminium oxide | White corundum | Silicon carbide
|
Excipients | Potassium cryolite | Kep2 | Iron sulfide |
Color | Carbon black | iron red | chrome green |
Wake up In order to fully adsorb the resin on the abrasive surface, we need to wake up. Attention should be controlled in a constant temperature and humidity environment, the workshop temperature is controlled at 20-30 degrees, and the humidity is controlled at 40-50 degrees to ensure the product's wake-up and molding stability. The wake-up time is above 12H.
2. Grinding wheel forming process
At present, most of the domestic rotating material distribution institutions, but due to the limitations of the rotating material distribution mechanism, the employees of some large manufacturing enterprises have no way to operate, the distribution of mixed materials is uneven, the row tolerance and static balance are out of tolerance.
A: molding material, B: mesh, C: trademark, D: hole ring.
First, press together according to product requirements;
The semi-finished products are then separated by an attachment.
3. Grinding wheel hardening process (sintering)
This is a key production process, and there are two factors that easily cause quality problems. One is that the temperature difference between the curing oven or the firing kiln is too large; the second is that the furnace is improperly installed. The semi-finished product is soft and solidified by the chemical reaction of the heating resin at high temperature. The hardening temperature of different products is also different. In principle, the higher the resin content, the higher the hardening temperature.
4. Post-processing
A: Separation (products and accessories) B: Appearance inspection; C: Packaging.
When the grinding wheel comes out of the oven, it is necessary to carry out manual inspection, and the defective product such as broken trademark or gap of the grinding wheel must be removed. The labor costs required for this link are relatively high, but manual inspection ensures the quality of the final product and the reputation of the product. So it is also one of the essential links.
Workers are conducting a film test
Plastic seal