When choosing a diamond bit, look at the concentration strength
1. Selection of the size of the diamond cutter head; when the diamond is coarse and single-grained, the blade of the saw blade is sharp and the sawing efficiency is high, but the bending strength of the diamond agglomeration is reduced; The saw blade has high durability but low efficiency. Taking the above factors into consideration, it is more appropriate to choose a diamond size of 50/60 mesh.
2. Selection of diamond strength; diamond strength is an important indicator to ensure cutting performance. If the strength is too high, the crystal will not be broken easily. The abrasive grains will be polished during use, and the sharpness will be reduced, which will lead to the deterioration of the tool performance. Therefore, the strength should be selected from 130 to 140N.
3. The choice of the distribution density of the diamond cutter head; within a certain range, when the diamond concentration changes from low to high, the sharpness and sawing efficiency of the saw blade gradually decrease, and the service life gradually increases; but if the concentration is too high, the saw The film will become dull. With low concentration and coarse particle size, the efficiency will be improved. Utilizing the different effects of various parts of the blade during sawing, using different concentrations (that is, the middle layer can be used at a lower concentration in a three-layer or more layer structure), the middle of the blade is formed during the sawing process. It is beneficial to prevent the saw blade from deflection, thereby improving the quality of stone processing.