Specification of tone cutting circular saw blade

Saw blades are indispensable for stone processing. Stone saw blades can help people to directly cut blocks from the ore body (quarry cutter and wire saws are also used), and then use saw blades to cut the blocks into plates. Finally, a saw blade is used to cut the slabs into tiles of various sizes. Therefore, the quality of the saw blade is related to the quality and processing efficiency of the product.

Specification of diamond saw blade:

The materials for the production of saw blade base are mainly 50Mn2V, 75Crl and 65Mn (some low-end markets also use 45# steel. 45# steel is ordinary carbon steel). 65Mn is an ordinary spring steel, 75Crl is a high carbon alloy and 50Mn2V is a medium carbon alloy steel. The saw blade base of 50Mn2V material has the advantages that the grains are small, the thermal stability is high, and it has high toughness, fatigue resistance and heat resistance. The saw blade base made of 50Mn2V material has the advantages of many re-welding times, long service life, the saw blade is not easily deformed after welding the cutter head, and it is easy to repair after deformation. In addition, the saw blade is not easily deformed after welding the cutter head, and easy to repair after deformation. The product also has the effect of gradually increasing the rigidity during use. Therefore, 50Mn2V The material is widely used in the production of diamond saw blade substrates.



According to the specifications, the domestic stone saw blade processing saw blade base specifications start fromф200mm, and the maximum isф3500mm (the specification of the largest circular saw blade abroad is ф5000mm). Among them, the ф200-600ram specification is mainly used for the cutting (edge trimming) processing of semi-finished plates; theф650mm and above specifications are mainly used for the forming and sawing processing of thicker stone slabs (columns) such as tombstones and tomb columns, as well as cutting for blocks. At present, theф1600mm saw blade substrate is the most commonly used.

ф200～600mm saw blade base, due to the low technical content, does not require high technology and quality of the product. They only need to be able to trim and use, and the products on the market tend to be homogeneous. At present, there are nearly 100 domestic manufacturers of saw blade base with specifications ofф200～600mm. The market competition is mainly based on price competition. The industry competition is fierce and the profit is very low. Some powerful domestic enterprises have no intention to participate in this low-end market competition. The quality of diamond saw blade is relatively poor, which is mainly reflected in the poor quality of the blade body, insufficient rigidity, and insufficient thickness. After a period of final cutting, the saw blade enters the fatigue period, and the saw blade cutting offset, jitter, etc., will eventually cause the saw blade to cut edges. When there is a risk of chipping, cracking and other risks.



Compared with the size ofф200-600mm, the base with a specification ofф650mm or more is more difficult to process. The initial capital to enter the industry is more, and the threshold is higher. Users have higher quality requirements and performance requirements for products. At present, there are a few domestic manufacturers, less than 10. The products show a certain degree of differentiation. The market competition is mainly based on non-price competition. The quality of the product itself, the stability of performance, the length of life and the quality of service play a key role in market competition. In southern areas such as Fujian and Guangdong, diamond saw blade bases are generally used in groups, such asф940mm,фl600mm, 10 pieces each,ф680mm,фll40mm, andфl600mm, 5 pieces each, etc. The multi-blade base is used to cut granite and marble slabs in groups, which greatly improves the cutting efficiency and sheet accuracy, saves more than 15% of power consumption, and puts forward higher quality and performance requirements for the saw blade base itself.

Larger saw blades appear in gantry cutting, the new tower bridge cutting machine, which can be divided into groups of up to 11 blades, and the largest saw blade diameter is 3.5 meters. In fact, the largest saw blade at present is mainly on the circular saw, and the main specifications are 4200mm 4600mm in diameter. Such saw blades have extremely high requirements on the base, and are often used in the mining of granite mines.