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The Strictness Of Diamond Saw Blade In Material Selection

Sep 14, 2017

     Selection of diamond size: When the diamond grain size is coarse and a single particle size, the blade head is sharp, sawing efficiency is high, but the flexural strength of diamond caking decreases; when the diamond particle size is fine or the grain size is mixed, the blade head is of high durability, but the efficiency is low. Considering the above factors synthetically, it is more suitable to choose the diamond grain size of 50/60 mesh.Diamond saw blade

     Selection of diamond distribution concentration: In a certain range, when the diamond concentration varies from low to high, the sharpness and sawing efficiency of the saw blade gradually decreases, while the service life is gradually prolonged, but the concentration is too high and the saw blades become dull. And the use of low concentration, coarse granularity, efficiency will be increased. Using the different functions of the cutter head parts in sawing, the lower concentration can be used in the middle layer of the three or more multi-layer structure, and the middle groove is formed in the cutter work during sawing, which is helpful to prevent the blade from tilting and improve the quality of the stone processing.Diamond saw blade

     The performance of the saw blade depends not only on the diamond, but on the overall performance of the composite with the appropriate combination of the diamond and binder. For marble and other soft stone, require the mechanical performance of the knife head is relatively low, you can choose the copper base binder. But the copper binder sintering temperature is low, the strength, the hardness is low, the toughness is high, and the diamond bonding strength is low. Diamond saw blade

     When Tungsten carbide (WC) is added, the WC or w2c is used as the skeleton metal, with the appropriate amount of cobalt to increase strength, hardness and bonding properties, and to add a small number of melting point, low hardness of Cu, Sn, Zn and other metals as bonding phase. The particle size of the main additive should be finer than 200 eyes, and the granularity of the ingredients should be finer than 300 eyes.Diamond saw blade

     Selection of sintering process: With the increase of the temperature, the density of the carcass increases, the flexural strength increases, and with the prolonging of the heat preservation time, the flexural strength of the blank carcass and the diamond caking can be improved first and then reduced, and the sintering 120s process under 800 ℃ may be chosen to meet the performance requirements.Diamond saw blade