Aug 12, 2021
The method of improving the performance of the diamond saw blade adopts a cold pressing-hot sintering process, which is sintered in a vacuum protective atmosphere. The cutter head that is sintered after cold pressing is very sharp during the sawing process, and the production efficiency is greatly improved. The vacuum protective atmosphere sintering can prevent powder oxidation and activate sintering, which not only improves the performance of the cutter head, but also prolongs the graphite mold. life and reduce production costs.
Ultrafine powders and pre-alloyed powders are used. Ultrafine powder is beneficial to reduce the sintering temperature and improve the hardness of the matrix. The pre-alloyed powder, through three-dimensional mixing, greatly shortens the contact time between the powder and the air, prevents the premature loss and segregation of the low-melting point metal, and is beneficial to improve the strength of the sintered product and increase the holding force of the diamond.
Improve the particle size ratio of diamond. In the traditional ratio, the cutter head should be sharper, and more coarse-grained diamonds should be used, otherwise, fine-grained diamonds should be used. But it still can't achieve the best working efficiency. Due to the hardness and elastic modulus of diamond, plastic deformation is difficult to occur during warm sintering. It is beneficial to improve the wear ratio of the tool by selecting a good ratio and increasing the bulk density of the diamond particles before sintering.
It adopts strong diamond with stable production performance, coarse particles and good thermal stability. The diamond saw blade is basically fixed on the working substrate by the diamond and the matrix under certain process conditions, and mainly relies on the abrasive and cutting action of the diamond to process different stone materials. Therefore, the quality, particle size and concentration of diamond play a decisive role in diamond tools.
Add strong carbon powder element to improve diamond holding power. In the process of diamond saw blade processing, if the cutter head matrix has a good grip on the diamond, the diamond will have a good edge, will not fall off prematurely, and will be sharp and efficient when cutting. In addition, a small amount of molybdenum, chromium, tungsten powder, etc. can be added to the matrix powder.
Improve the production process technology and equipment quality of saw blades; the quality of saw blades is closely related to the production process and equipment for producing saw blades. Quality production technology or equipment can improve the quality and performance of saw blades; many manufacturers are conducting research to try to obtain breakthrough.
Nov 17, 2023
