At present, in the manufacturing of consolidated grinding wheel, it is often used to mix diamond and other abrasive particles with base metal powder, press them into a certain shape with hydraulic device, and then sinter (or harden) them into the powder of grinding wheel with certain strength and cutting performance. However, in the previous manufacturing process of grinding wheel, the base metal and working layer mostly use liquid adhesive, and it is difficult to separate the base metal and working layer after bonding, It is easy to be forcibly separated and damaged. With the existing conventional manufacturing method, the working layer is easy to crack, the base metal of the grinding wheel can not be used again, and the manufacturing, transportation and installation costs of large-diameter grinding wheel are high, which is difficult to operate. Then, let's learn about the manufacturing method of the next grinding wheel together!
The technical problem to be solved by the utility model is to provide a reusable grinding wheel with long service life and easy replacement.
In order to solve the above technical problems, the utility model puts forward the following schemes
1 . The utility model relates to a grinding disc, which is provided with a workpiece layer at the outermost layer containing abrasive and adhesive, which is characterized in that it is also provided with a double-sided adhesive layer at the innermost layer; The outer surface of the double-sided adhesive layer is bonded with the inner surface of the working layer, and the inner surface of the double-sided adhesive layer is the adhesive mounting surface of the grinding wheel When in use, the inner surface of the double-sided adhesive layer can be bonded to the corresponding parts. When there is a problem with each grinding plate or the working layer can not continue to be used, the double-sided adhesive layer can be removed and the parts can be replaced with new grinding plates. The double-sided adhesive layer needs proper adhesive force. On the one hand, it needs to fix the working layer to prevent the working layer from falling off, on the other hand, it also needs to be easy to disassemble and paste.
The inner surface of the double-sided bonding layer of the grinding wheel is provided with a peelable diaphragm for convenient transportation. When in use, after stripping the diaphragm, the grinding wheel can be installed through the bonding effect of the inner surface.
A reinforcing layer and a connecting layer are also arranged between the double-sided bonding layer and the working layer; Connect the working layer, connecting layer, reinforcing layer and double-sided bonding layer in turn. The reinforcing layer is connected with the working layer through the connecting layer, which can buffer part of the force received by the working layer. When the external force acts on the working layer in the work, the working layer is not easy to crack and can prolong the service life. The adhesive force between the double-sided adhesive layer and the reinforcing layer, the reinforcing layer and the connecting layer, and the connecting layer and the working layer is greater than the radial force applied when the working layer works, and its purpose is to prevent the reinforcing layer and the working layer from separating from the double-sided adhesive layer.
The adhesive layer of the grinding wheel is bonded by the working layer and the reinforcing layer. The adhesive layer is cured at room temperature for no more than 24 hours. After curing, it has the characteristics of high strength, non shrinkage, non flammability, water resistance, alcohol, kerosene, oil, detergent, dilute acid, dilute alkali and solvent. The adhesive layer is any one of strong epoxy adhesive, anaerobic adhesive and UV adhesive The abrasive particles are any one of diamond, cubic boron nitride, brown corundum, white corundum, microcrystalline corundum, single crystal corundum, chromium corundum, black silicon carbide and green silicon carbide; The adhesive is selected from any one of cermet adhesive, metal adhesive, ceramic adhesive and resin adhesive
Further improvement of the grinding wheel, the grinding wheel is a circular structure or block structure with a through hole in the center, that is, when the grinding wheel is a circular structure with a through hole in the center, the hole wall is the inner surface of the double-sided adhesive layer, and the outer wall is the outer surface of the working layer; When the grinding wheel is of block structure, the outer surface of the working layer and the inner surface of the double-sided adhesive layer form two parallel sides. After stripping the diaphragm, the inner surface of the double-sided adhesive layer can be bonded to the matching working surface.
The grinding disc comprises a base layer and at least one grinding disc. After stripping the spacer, the grinding disc is bonded to the base layer through the inner surface of the double-sided bonding layer; The adhesive force between the base layer and the inner surface of the double-sided adhesive layer is greater than the force applied when the working layer works. The base layer can adopt the working face of existing equipment, which can not only greatly save the production and transportation cost, but also realize convenient and fast replacement.
The above is the manufacturing method of grinding wheel. If you need to know more, you can contact us at any time!