When choosing a diamond saw blade, according to the two components of the saw blade (diamond blade and saw blade), conduct separate observations and tests, and then make a comprehensive judgment based on the combination of the two. Let’s take a closer look for that:
First of all, let’s talk about the substrate. It is very important to select the substrate. If you had choose a poor quality, the saw blade will have problems such as deflection, bending, deformation, etc., and even some of the substrate may break, which threatens the operator’s safety. So we should pay special attention to the selection of the substrate. So what should be pay attention when choosing a saw blade?
First, the tension . The tension of the saw blade refers to the tensile ability and axial compression ability of the saw blade during the cutting process. Simply put, when the tension of the saw blade is large, the tensile ability and the axial compression ability of the saw blade becomes stronger and the cutting will be smoother. However, if the cutting speed is too high, the saw blade will be directly deformed due to excessive force due to the high bending resistance. When the tension is too small, which will cause a crooked knife, because during the cutting process of the saw blade, under a certain cutting speed, the saw blade has insufficient bending resistance. Of course, it is best to maintain a balanced tension overall select.
Second, the material of the saw blade substrate itself. There are many materials for the saw blade substrate, including high-speed steel, alloy steel, carbide steel, etc. The difference in the base will determine the strength of the saw blade. The saw blade with good strength can be used in the cutting process with quickly and take into account a longer service life, but the saw blades with poor strength, although the price is relatively cheap, usually have a short life, which leads to an increase in production costs.
Next, let’s talk about the diamond segment. The diamond segment is the cutting part of the entire diamond saw blade, so it is especially important. Generally, we must pay attention to the following points when we choose the diamond segment:
First, matching the cutting material, the marble diamond segment and the granite diamond segment are completely different, and should not be confused.
Second, the diamond segment must have sharpness, and the service life can be adjusted continuously. For the stone cutting tool, the cutting movement is the most important factor of the diamond segment. there is no meaning if the sharpness is not enough, no matter how high the service life is.
Third, the density of the diamond segment is very important. The density determines the density of the diamond segment. Everyone knows that the higher the density, the stronger the diamond and the metal bond are combined. The density also determines the quality and stability of diamond segment.
Finally, introduce the saw blade composed of the diamond segment and the saw blade substrate, which should be paid attention to as a whole:
First, the diamond segment
and the substrate are connected together by welding, so the welding process is extremely important, such as the material to be welded, the size of the weld, whether the diamond segment is horizontally symmetrical, whether the diamond segment is in a vertical state, etc. They all can affect the cutting performance of the entire saw blade.
Second, the welding strength. The welded segment should be knocked on the side. If it falls, it means that the welding strength of the segment is insufficient. On the contrary, the welding strength of the segment is sufficient.
Third, in the post-processing part, the diamond circular saw blade is in contact with water for a long time during the cutting process. The saw blade will definitely be oxidized. The oxidized matrix will not only affect the appearance of the saw blade, but also directly affect the cutting performance. So in the post-processing treatment, anti-rust treatment must be done.
In general, the selection of diamond circular saw blades is a very complicated and tedious process, but there are also traces to follow. If the detection is carried out, it is naturally easy to obtain saw blades with higher efficiency and longer life.
Diamond segment according to the structure of the different, divided into two structures of the holistic and mezzanine type, the two segments in the process of cutting stone, the emergence of different cutting surfaces, these cutting surfaces can be a good response to the current allowable state of the segment, below we analyze these faces and give a corresponding solution.
First let's talk about the changes in the cutting surface of the one-size-fits-all segment:
1): The holistic segment is the segment in the middle of the segment there is no compartment situation, this segment because it is one, diamond content is uniform, the overall cutting surface changes will be very uniform and natural. At the beginning of the cutting, the segment will take on a natural cutting surface shape, after the cutting edge, the M-shaped segment, the M part will be slowly flattened.
2): The flattened segment is slowly consumed, showing a natural plane, the segment presents a four-sided structure, the cutting surface of the segment appears natural grinding tail situation, with the increase in the number of cutting squares, the entire segment is consumed at a constant speed.
3): Cut to the back, the segment is also showing a natural consumption, the width of the box is constantly reduced, when the segment is consumed to a certain extent, fast wear to the welding layer, the segment will appear to cut the situation, and then such a segment is normally consumed.
Then say that the mezzanine segment, mezzanine segment and sandwich segment because of the multi-layer structure, processing process, the working layer and non-working layer form a natural waterway, so the cutting surface changes are more complex:
1: At the beginning of cutting, the segment in the process of cutting stone, the middle water path of the mezzanine segment began to be worn, non-working layer concave in, and the working layer because of its internal containing diamond, coupled with its tire body has a stronger hardness, so the convex segment surface, so that the segment formed a convex structure.
2: In the middle of cutting, the segment is constantly worn, bumps and bumps are constantly formed, so that the shape remains until the end. The whole segment looks from the side and is a rectangular structure.
However, the segment in the cutting process, will encounter many situations, such as the processing object is too hard, the segment tire formula problems, saw blade substation deformation and bias and so on, will cause the cutting surface of the segment changes.
1): The segment appears to arc the situation, the specific performance of this situation is the front end of the segment of the segment presents a round flattened situation, such a segment will increase the cutting surface of the segment and stone, increase the cutting resistance, thereby reducing the efficiency of cutting. And the main reason for such a problem is due to speed up the stone cutting line speed and segment speed, segment sharpness is not enough caused, based on this situation, should be appropriate to reduce the segment speed, or improve the sharpness of the segment, you can solve the problem.
2): The segment side grinding situation, this situation is specifically manifested in the segment on both sides of the serious wear and tear, the specific performance of the segment side of the very serious wear, generally local this situation, this situation appears for three reasons: the segment welding uneven, substring deformation or the segment of the tire body is too soft caused. The treatment is also simple, either re-welding the partially ground segment, or replacing the deformed substation or re-selecting the harder fetal body.
3): The third situation is the worst, the cutting surface of the segment overall deformation, for the mezzanine segment, the work surface in the process of cutting, due to the speed of the lower segment is too fast, resulting in the overall bending of the entire work surface deformation, resulting in the segment has no ability to continue cutting, this time the segment needs to be opened, and it is best to replace the sharper segment.
cutting surface can reflect a lot of problems, so in the process of use, we must pay attention to observe the changes in the cutting surface, the benefits of this not only can save production costs, but also can find problems in a timely manner, deal with problems.