How to select a diamond segment correctly

Diamond segment is a reusable product used in diamond saw blades, for the diameter of less than 300mm saw blades, the value of the saw blade substation is not high. Most manufacturers use cold pressure to fix the segment and base directly, so these small saw blades are rarely need to buy a segment, they are direct to purchase of saw blades. However, when the diameter of the diamond saw blade is 300mm or even larger, the price of the saw blade base will become more expensive, in order to save costs, reuse of the base has become inevitable, and this time they need to choose the right diamond segment, these segments can be re-welded on the old blade base, to achieve cost-saving purposes.

There are many diamond segment sizes and shapes on the market, especially for the processing of stone segment. The specification changes can be applied to 300-4600mm diameter circular saw blade, and for cutting other materials saw blade, the specifications are mostly applicable to the diameter of 300-600mm circular saw blade, this paper as an example for cutting stone saw blade segment, and how to select the right blade in details.



The cutting materials are determining the choice of the segment: due to the different materials, its hardness and wear resistance are very different. Such as natural marble, natural granite, reinforced concrete, bricks, asphalt, etc., To cut these materials are determined according to the characteristics of the material, For example, marble is softer, so the use of the segment bond will be softer, and diamond particle size will choose larger one. And granite due to the material is hard, the segment bond needs harder, so diamond particle size will choose smaller one, and the concentration should be increased a little. Therefore, when selecting the segment, be sure to choose a more suitable segment according to the cutting material. And some material cutting needs to be processed in the dry cutting environment, the segment is required to have good high temperature resistance, otherwise there will be unstable performance of the segment. Out of the hardness considerations, the abrasiveness of the material is also very important, abrasive material, need to be paired with high abrasive bond, otherwise the segment will consume very quickly, and the cost will be increasing.

Segment size selection: many of the size of the segment is fixed, according to the size of the blade base to customize, the best way is to choose the original blade size of the blade, such a segment welded on the blade will not be too big a problem. However, if you feel that the previous blade sharpness or life cannot meet the requirements, you can slightly adjust the size of the segment, sharpness is not enough blade, the segment can choose shorter, such as the length of the segment from 40mm long to 38mm long;

Shape adjustment of the segment: the shape of the diamond segment has a big change, such as the R-shaped is a more traditional segment specifications, while M, V, K, turbine-shaped segment, can be easily opened, but also can appropriately increase the sharpness of the blade.



Segment structure selection: At present, diamond segment can be according to its internal structure divided into two parts, that is layer segment and no layer segment. And if according to the external structure, it can be divided into no T, T and 3T three structures. The different structures of the segment have different uses, the layer engaged in improve the sharpness of the segment, and no layer segment life is higher, T structure is to prevent when stone cutting kit, so that the segment cutting smoother.

Tire segment bond selection: there are many metal elements in the segment bond, cobalt base is better than copper base, copper base is better than iron base, these three basic metal powders determine the wear resistance and stability of the bond. But no matter you how to design, the color of the segment tire body will not change, the cobalt-based segment is gray and bright, the copper-based segment is yellow, and the iron-based segment is silver-white.

Diamond segment selection is a relatively difficult process, in fact, it is difficult for anyone not to understand diamond tools can select a good segment, and no one can said his segment is the best, only suitable for inappropriate, suitable for cutting requirements, to adapt to cutting materials and machinery of the segment is the purpose of selection.