Gang saw cutting head for cutting granites and manufacture method thereof

Abstract

The invention discloses a gang saw cutting head for cutting granites and a manufacture method thereof. The gang saw cutting head for cutting the granites comprises a cutting head body and a welding transition body, wherein the welding transition body is a metal bonding agent sintered together, and the outer surface of a combined body formed by sintering the cutting head body and the welding transition body is provided with a hard wear-resisting phase. By arranging the welding transition body, the problem of the welding quality caused by large difference in metal components of the cutting head body and steel bands is solved, and the cutting head can obtain firm swarf pushing force. By arranging the hard wear-resisting phase, the abrasive resistance of the surface of the cutting head body is improved remarkably, carcass metal on an inner layer is prevented from being abraded, the stable and continuous cutting process is ensured, accordingly mechanical holding force of the metal bonding agent to diamond grains is strengthened effectively, the processing efficiency of a tool is improved, and the service life is prolonged. In the forming process of the hard wear-resisting phase, the diamond grains in the cutting head body and the mechanical holding force of the metal bonding agent are greatly strengthened, and the requirement of cutting the granites is met.

Description

technical field [0001] The invention relates to a gang saw cutter head manufactured by sintering, mainly a gang saw cutter head capable of cutting granite. It also relates to a manufacturing method of the gang saw head. Background technique [0002] Granite is a hard and dense rock, which belongs to hard stone and is often used in high-level building decoration projects. At present, the processing of small-sized granite slabs is processed by circular saws, and large-sized slabs need sand saws or even wire saws. The disadvantage of processing granite slabs with circular saws is that the kerf is wide and a lot of stone is wasted, because the size of the circular saw itself is limited. , unable to cut larger flat granite stones; sand saws and wire saws can process large-scale plates, but have low efficiency, high energy consumption, and serious pollution, especially the high cost of wire saws (only a few foreign countries are in use in the world) . The gang saw can save mor...

AI Technical Summary

Problems solved by technology

At present, the processing of small-sized granite slabs is processed by circular saws, and large-sized slabs need sand saws or even wire saws. The disadvantage of processing granite slabs with circular saws is that the kerf is wide and a lot of stone is wasted, because the size of the circular saw itself is limited. , unable to cut larger flat granite stones; sand saws and wire saws can process large-scale plates, but have low efficiency, high energy consumption, and serious pollution, especially the high cost of wire saws (only a few foreign countries are in use in the world)

The gang saw can save more than 20% of the stone because the steel strip is thinner, and it can cut larger flat stone slabs with low cost. People have been trying to use gang saws to process granite stones. So far, there is no gang saw in the world. Techniques for cutting granite are discovered or made public

[0003] One of the technical problems that the gang saw cannot cut granite is that the welding joint surface between the gang saw blade and the steel strip is small, the metal composition of the gang saw blade and the steel strip is quite different, and the quality and size of the weld seam after welding. The cutting force that the gang saw blade bears is small, and the gang saw blade will fall off if the cutting force is slightly larger

[0004] The second technical problem that the gang saw cannot cut granite is due to the limitation of the gang saw steel belt. The head of the gang saw is required to be thinner than the head of the circular saw, so it cannot form a cutting force to overcome the hardness of the granite. There are too many diamond abrasive grains, and the knife Insufficient holding force of the diamond abrasive grains by the carcass will cause the diamond abrasive grains to fall off prematurely, and it is impossible to cut granite at all. However, too little diamond abrasive grains will make the life of the cutter head extremely short, and its cutting efficiency is not accepted by the market

[0005] The third technical problem that the gang saw cannot cut granite is because the gang saw blade is thinner and the kerf is narrower. The side surface will be worn and generate heat during the cutting of granite, which will make the gang saw blade thinner and the blade will become thinner. The holding force of the matrix to the diamond abrasive grains is reduced at the same time, and the cutting ability is greatly reduced, which also makes the gang saw unable to meet the requirements of cutting granite

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