Multilayer abrasive material brazing bead and production method thereof

Abstract

The invention discloses a multilayer abrasive material brazing bead. The bead is composed of a matrix working layer and a base body, and is characterized in that the base body is a hollow-step cylinder with a large-diameter middle and two small-diameter ends; two or more than two layers of concentric surface cutting unit ring columns are brazed on the circumferential surface of the middle step of the base body to form the matrix working layer; and single-layer abrasive particles are uniformly arranged on each layer of the concentric surface cutting unit ring columns. The bead disclosed by the invention has the following advantages: the abrasive material particles are arranged in a layered manner, and the number of the abrasive particles participating in working in one process is controlled, so that the efficiency advantage of a brazing tool is ensured; the abrasive particles are distributed in a staggered manner, so that prolonging for the effective working time of the abrasive particles is benefited, and the working lives can be greatly prolonged; and a brazing flux layer is made of woven-mesh-shaped brazing wires or brazing lugs, and the abrasive material particles are directly embedded in the brazing flux layer, so that the influence of pores, residue and the like generated by a common brazing paste or a glue solution is eliminated.

Description

Technical field [0001] The invention relates to a wire saw, in particular to a multi-layer abrasive brazing bead and a manufacturing method thereof. The manufactured product is applied to the cutting processing of brittle and hard materials such as stone, concrete, cast iron, and steel components. Background technique [0002] As the third-generation product after sintering and electroplating, brazed diamond tools have been widely used in cutting, drilling, polishing and other processing fields of brittle and hard materials, and have achieved good economic benefits. However, the current brazing The welding tools are essentially all arranged in a single layer of abrasive grains, and their service life is relatively short, and the use cost is relatively high. In recent years, in order to improve the service life of brazing, on the one hand, scientific and technical personnel have done more research on the research and development of solder and the selection of abrasive grains, but ...

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Problems solved by technology

[0002] As the third-generation product after sintering and electroplating, brazed diamond tools have been widely used in the fields of cutting, drilling, and polishing of brittle and hard materials, and have achieved good economic benefits. The welding tools are essentially arranged in a single layer of abrasive grains, the service life is relatively short, and the cost of use is relatively high

In recent years, in order to improve the service life of brazing, scientific and technical personnel have done more research on the research and development of solder and the selection of abrasive grains on the one hand, but the effect has not been significantly improved; on the other hand, more research has been done on the structure of beads. Innovative research, including making the cylindrical surface into a waist drum shape, a cone shape or a double cone shape (such as figure 1 As shown), even the outer surface is processed into a spiral step shape. It is assumed that the abrasive grains will be put into work in stages as the cutting progresses to achieve the purpose of multi-layer cutting. There is no substantive breakthrough, and it is still only a single-layer tool with a layer of abrasive grains distributed on the substrate. The improvement of tool life is very limited. Due to the problem of low service life of single-layer brazed diamond tools, many diamond beaded wire saws are currently In the field of application, it is still unable to compete with the hot-pressed sintered diamond beaded wire saw

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