The role of the cutting disc for the angle grinder is self-evident, just like the role of teeth for human beings, once the cutting disc breaks during operation, it is easy to cause serious injury to the person, so it is very important to manufacture high-quality and qualified cutting discs.
First: ingredients
Resin, abrasives (such as brown corundum), cryolite, adhesives and other raw materials, according to the requirements of the formula, a certain proportion of raw materials flow into the raw material barrel through the funnel.
The mixed raw materials are fully mixed and stirred, and the mixed raw materials must be repeatedly filtered and screened to remove impurities and ensure that the raw material particles are the same size.
Second: the molding link
In order to solidify the raw material, the quality of the substrate is also extremely critical, first of all, the grid-like bakelite board is used as the substrate to support the abrasive, so when manufacturing the cutting piece, it is necessary to place the bakelite board substrate at the bottom of the mold.
Then the abrasive is filled on top and covered on the glass fiber mesh matrix, and after the filler process is completed, the abrasive mixed with various raw materials is pressed and formed by the method of cold pressing of the machine.
After pressing the formed cutting disc, the middle flange is pressed up by a machine.
Third: hardening link
The pressed cutting discs are placed in a kiln and dried and hardened at high temperatures, either in a natural environment or by a combination of natural and high temperatures.
Fourth: Inspect the packaging
Sampling cutting discs for appearance, size, hardness, etc.