Tungsten-copper based diamond cutter bit and diamond round saw blade and manufacture method thereof

Abstract

The invention provides a tungsten-copper based diamond cutter bit and belongs to the field of diamond round saw blades. The tungsten-copper based diamond cutter bit is prepared by the following raw materials by weight percentage: 25-40% of superfine tungsten-copper alloy powder, 20-30% of copper-tin alloy powder, 15-25% of nickel carbonyl powder, 3-8% of silver powder, 10-25% of iron powder, 0.5-1.0% of liquid paraffin and 1-1.5% of diamond. The invention further provides a diamond round saw blade and a manufacture method thereof. The diamond round saw blade solves the problem that blade edge is not apt to form on the diamond in the prior art, synchronous abrasion of a blank and the diamond is achieved, fast continuous dry-cutting processing of the saw blade is achieved, and the diamond round saw blade can cut stone materials large in hardness in dry mode and is particularly suitable for fast and continuously processing hard granite with the thickness larger than 30mm in dry mode.

Description

technical field [0001] The invention relates to a diamond circular saw blade, in particular to a tungsten-copper based diamond cutter head, a circular saw blade and a preparation method thereof which can be used for dry cutting hard granite with a thickness greater than 30 mm. Background technique [0002] Environmental protection has become the theme of the world. In order to avoid the pollution of cutting fluid to the environment, dry cutting instead of wet cutting has become the first choice for diamond tools. At the same time, the labor cost in my country is increasing year by year. For diamond tools, especially small-sized saw blades Efficiency is overtaking lifespan as the primary choice for applications. [0003] For stones with higher hardness, such as granite, it is an igneous rock formed by the condensation of magma below the surface. The main components are feldspar and quartz. It is a widely distributed rock. Granite is produced in many countries in the world. Chi...

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Problems solved by technology

[0003] For stones with higher hardness, such as granite, it is an igneous rock formed by the condensation of magma below the surface. The main components are feldspar and quartz. It is a widely distributed rock. Granite is produced in many countries in the world. China 9% of the land (approximately more than 800,000 square kilometers) is granite rock mass. Granite is not easy to weather, and its color is beautiful. The floor of the hall is also the first choice for outdoor carving, but granite is hard and dense, high in strength, and wear-resistant, so it is very difficult to process

[0004] In the prior art, most diamond circular saw blades, especially small size saw blades (including cobalt-based formulations) with a diameter less than or equal to 230mm, have a common weakness when dry cutting hard stone materials, especially hard granite with a thickness greater than 30mm , that is, after continuous cutting with fewer knives, the cutting speed gradually slows down, until it is difficult to cut, and a second sharpening is required, which greatly affects the processing efficiency

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