Jul 03, 2021
Social division of labor is one of the effective forms for the efficient operation of human society. When the entire social operation shows the best use of everything and people make the best use of their talents, the improvement of the overall labor productivity of the society is inevitable. In the field of stone or aluminum processing, in order to ensure the effect of material processing, special sawing has become an open secret. Especially for the processing of brittle and hard materials like stone, it is necessary to use tools like diamond saw blades. At present, compared with ordinary carbide saw blades, various types of diamond saw blades are not only expensive but also have excellent performance. However, when entering the actual processing link, it is often another situation.
Among them, the problem of tooth loss is not uncommon in the use of saw blades. Once a similar problem occurs, it actually means that the company has to scrap this expensive diamond saw blade. Once the problem of diamond saw blades falling off occurs generally, the processing cost of the enterprise itself and the purchase expenditure of the saw blade will increase significantly. Therefore, if you don't want your diamond saw blades to lose teeth after a few days of use, daily protection is very important. As far as the reasons for the tooth loss of the diamond saw blade alone are concerned, the heat treatment effect of the saw blade substrate and the stress factor of the saw blade itself are often the two major culprits.
From the perspective of the structure of a single diamond saw blade, from the outside to the inside, there are the sawtooth and the matrix, and the performance of the matrix used by the diamond saw blade itself will usher in a big test when welding teeth and later use. Among the common matrix materials that can be used as diamond saw blades, alloy steels with excellent material properties such as 65Mn, 75Cr1, and 8CrV are the most common. However, this does not mean that the diamond saw blades using this steel will not have the problem of tooth loss.
In the actual manufacture of diamond saw blade base steel, as long as there is a problem in the quenching and medium temperature tempering process in the heat treatment process, the quality of the blade welding will be affected. In addition, the stress factor of the diamond saw blade during use is one of the reasons for the tooth loss problem of the saw blade.
Among the many stress factors, cutting stress and thermal stress due to violent mechanical impact are the other two major causes of tooth loss during the use of diamond saw blades. The saw blade needs to withstand a huge impact due to the cutting material, so the diamond saw blade itself will form a relative force sufficient to resist this deformation. Once the deformation force exerted by the outside world exceeds the bearing limit of the saw blade itself, the occurrence of problems such as tooth loss is inevitable. In addition to the cutting stress factor of the saw blade, thermal stress is a factor that is easily ignored. Once the high temperature resistance limit of the diamond saw blade is exceeded by the outside world, the problem of tooth loss with thermal wear properties will appear.
At present, in order to effectively prevent and deal with the problem of diamond saw blades falling off, in addition to strictly selecting suppliers of diamond saw blades, when using diamond saw blades on a daily basis, control the speed of the saw blade and do a good job of cooling and lubrication. critical. Taking the commonly used cooling and lubrication measures as an example, micro-lubrication can effectively prevent the diamond from falling off due to overheating. From the perspective of this cooling and lubrication method, on the basis of fully ensuring the cooling and lubrication effect, the fuel consumption is reduced as much as possible.
Due to the combination of oil and gas, the oil consumption performance of the MQL scheme in unit time is controlled within the range of 0.05 ml per drop per second. From the perspective of the effect of lubrication and cooling, after the fine oil mist is evenly sprayed on the saw blade, the heat originally accumulated on the diamond saw blade will be quickly dissipated, and the heat dissipation problem of the saw blade will be effectively eliminated. solve.
Of course, in addition to the above measures, we cannot ignore the human factor. For enterprises, in addition to preparing for diamond saw blades to prevent tooth loss at the technical level, it is also important to strengthen pre-job and post-job training for front-line operators. In this way, the damage rate of the diamond saw blade is minimized.
Nov 17, 2023