Structure of granite diamond circular saw blades
The diamond circular saw blade is composed of two parts: a diamond saw segment and a matrix. The diamond saw segment is further divided into a diamond layer and a transition layer. The diamond layer consists of matrix material and diamond, also known as the working layer; the transition layer does not contain diamond. Generally speaking, the height of the transition layer is between 0 and 3 mm. The height and width of the saw segment should be determined according to the thickness of the saw blade substrate, the number of saw segment teeth and the abrasive performance of the cutting object, so as to ensure that the wear in the direction of the saw segment height matches the wear on the side.
Diamond circular saw blades can be divided into three categories: no water slot, narrow water slot and wide water slot according to their nozzle form. The water groove on the base has the functions of dry chip removal, water cooling and relief of sawing stress. No water slot, narrow water slot is suitable for shallow cutting, and the cutting quality is good. The wide water slot is suitable for cutting dry and strong abrasive materials, as well as deep cutting of large-sized saw blades, with good chip evacuation and cooling effect.
The structure of diamond saw blades has always been an important part of saw blade design, especially in recent years, with the increasingly wide application of diamond circular saw blades and the increasingly complex processing objects, in addition to the general wear resistance of saw blades, In addition to the performance requirements such as sharpness, it is also suitable for the processed materials (such as various marble granite, reinforced concrete, asphalt pavement, etc.) and processing conditions (such as dry cutting, wet cutting, sawing ultra-thin boards, high-precision boards, etc.) And environmental protection requirements (such as noise, sewage, etc.) have put forward higher requirements, which have brought new challenges to the design and manufacture of diamond circular saw blades, and diamond circular saw blade products with new structures emerge in an endless stream.
Continuous Segment Diamond Circular Saw Blade
The continuous segment diamond circular saw blade is used to cut all kinds of stone, ceramic tile and other materials, and the water cutting is smooth and sharp, which can effectively ensure the cutting effect of the cut parts.
Keyhole Slot Diamond Circular Saw Blade
This is the most common diamond circular saw blade structure, which is mostly used in small and medium-sized laser-welded saw blades. It can be used for water or waterless processing, and can cut a variety of materials such as stone, concrete, asphalt, etc., and has a wide range of applications.
Narrow Slot Diamond Circular Saw Blades for Cutting Granite Slabs Countertops
The narrow water slot structure is divided into a narrow U-shaped water slot circular saw blade and a slotted circular saw blade. Narrow slot diamond circular saw blade has good saw segment continuity and smooth cutting, and is mostly used for marble slabs countertops and granite slabs countertops cutting and special-shaped processing. The slotted water slot diamond circular saw blade is to cut a slot of about 1mm on the substrate. It is characterized by smooth cutting and excellent cutting effect. This structure is mostly used for tile design.
Wide U-Slot Diamond Circular Saw Blade
The wide U-shaped groove diamond circular saw blade is characterized by sharp cutting, sufficient water flow, which can effectively remove chips and dissipate heat. Large-sized stone saw blades mostly use this structure.
Turbo segment diamond circular saw blade
The advantage of the turbine segment diamond circular saw blade is to increase the cutting speed on the basis of ensuring the cutting stability. Turbine shape is conducive to the discharge of chips, reducing cutting resistance and increasing cutting speed.
Saw blade structure to prevent flank wear
During the sawing process, the saw blade runs at high speed, and the root of the cutter head will cause friction and wear with the debris flow, which is likely to cause excessive wear of the outer edge of the substrate and the transition layer of the saw segment, and the phenomenon of the base of the saw segment root fracture occurs, especially when the saw blade cuts asphalt, This is especially the case with highly abrasive materials such as fresh concrete. In order to prevent this phenomenon, a common method is to design a saw blade structure with a mouthguard. Welding a small segment guard segment at the nozzle of the circular saw blade base body can also achieve the effect of protecting the side, the production cost is low, and the process is relatively simple; the diamond circular saw blade structure with the saw segment segment extending into the base body can effectively prevent the base Side wear, the disadvantage is that the cost is higher.
The ring saw is a circular saw blade made by welding diamond teeth on a ring-shaped base. It is characterized by deep cutting and convenient use.
Silencer Diamond Circular Saw Blades
During the cutting process of the saw blade, the saw blade teeth periodically agitate the surrounding air medium to generate noise, and at the same time rub and impact with the stone and other building materials, causing the substrate to vibrate violently and also to generate noise. Its intensity can sometimes reach 110dB, sharp and harsh. In order to reduce noise pollution, the noise can be reduced by changing the structure of the base, reducing the vibration of the base, or adding damping materials that can suppress noise. One of the common methods is to use a laser beam to cut some slits in the substrate. After the slit is cut on the base, the vibration medium from the periphery to the center of the base is cut off, and the vibration noise and resonance rebound noise of the base are weakened; in addition, the speed of the air vortex can be reduced, which also plays a role in reducing noise.
Another commonly used matrix structure is the “sandwich” type composite muffler matrix. This base structure includes: two iron disks on the outside, and an interlayer between the two iron disks, and the interlayer material is a damping material that can suppress noise. The effect of this method to reduce noise is obvious. The noise reduction principle is: there is a layer of damping material between the base layer and the layer of the “sandwich” structure. Since the damping material of the interlayer has a different natural frequency from the outer material, it is difficult for the saw blade to resonate; and when the vibration passes through the damping When the material propagates, the damping material converts the vibration energy into internal energy and consumes, thus achieving damping and noise reduction.