Marble is a very popular building decoration material in the current market, and before it becomes a decoration material, it needs to undergo various processing and finally becomes a finished product.
Among them, in the process of marble processing, cutting is a very important part. Generally, in the cutting process, a marble saw blade will be used for cutting. So what are the characteristics of using a marble saw blade?
The saw blade is mainly composed of two parts: the base body and the cutter head. The base body is the main support-support part of the bonding cutter head, and the cutter head is the part that is cut during use, and the cutter head will be continuously consumed during use. The reason why the cutter head can cut is because it contains diamond. As the hardest substance at present, diamond rubs and cuts the processed object in the cutter head. The diamond particles are wrapped by metal in Inside the blade.
Saw blade speed:
In actual work, the linear speed of the marble saw blade is limited by the equipment conditions, the quality of the saw blade and the nature of the stone being sawed. From the perspective of the best saw blade service life and cutting efficiency, the saw blade should be selected according to the properties of different stone materials. Linear speed. When sawing granite, the linear speed of the saw blade can be selected in the range of 25m~35m/s. For granite with high quartz content that is difficult to saw, the lower limit of the linear speed of the saw blade is appropriate. When producing granite tiles, the diameter of the diamond circular saw blade used is small, and the linear speed can reach 35m/s.
The cutting depth is an important parameter involving diamond wear, effective sawing, the force of the saw blade and the properties of the stone being sawed. Generally speaking, when the linear speed of the diamond circular saw blade is high, a small cutting depth should be selected. From the current technology, the depth of sawing diamond can be selected between 1mm~10mm. Usually, when cutting granite blocks with large diameter saw blades, the cutting depth can be controlled between 1mm~2mm. Reduce the feed rate.
When the linear speed of the diamond circular saw blade is large, a large cutting depth should be selected. However, within the allowable range of saw machine performance and tool strength, a large cutting concentration should be used for cutting to improve cutting efficiency. When the machined surface is required, a small depth cutting should be used.
The feed rate is the feed rate of the stone being sawed.
Its size affects the sawing rate, the force of the saw blade and the heat dissipation of the sawing area. Its value should be selected according to the nature of the stone to be sawed. Generally speaking, when sawing softer stones, such as marble, The feeding speed can be appropriately increased. If the feeding speed is too low, it is more conducive to improve the sawing rate. For sawing fine-grained, relatively homogeneous granite, the feeding speed can be appropriately increased. If the feeding speed is too low , the diamond blade is easy to be ground.
However, when sawing granite with a coarse-grained structure and uneven hardness and softness, the feed speed should be reduced, otherwise the saw blade will vibrate and the diamond will be broken and the sawing rate will be reduced. The feed speed of sawing granite is generally 9m Select within the range of ~12m/min.