Method for producing diamond saw bit special for glass-cutting

Abstract

The invention discloses a method for producing a diamond saw blade specially used in glass cutting. A 65Mn steel plate is first stamped into a disc-shaped substrate and then placed in a sintering furnace to be heated to 850 DEG C and the temperature is maintained for more than 6 hours; after the substrate is cooled in an air-cooling method, a grinder is used for grinding both sides of the substrate; the error of the flatness of the substrate is guaranteed to be less than 0.3mm; after that, the cold pressing of diamond and a binder is carried out on the substrate with the pressure of the cold pressing of 16kg; a hot pressed stainless steel mold is then used for sintering the substrate and a blade body so as to ensure that the width S of steps at both sides of the blade body is the same; the sintering temperature reaches 780 DEG C and the time for keeping the temperature is not less than 8 hours; painting and edging are finally followed. The method of the invention adopts the heat treatment to ensure that the hardness of the substrate can achieve Rockwell hardness of above 48; the substrate after the heat treatment is ground to guarantee the flatness of both sides of the substrate, the horizontal vibration during the glass cutting is reduced; in addition, the pressure of the cold pressing of the substrate and the binder is improved, which results in the uniform force bearing of both sides of the blade body when cutting and a neat and straight cutting slot.

Description

A kind of production method of special diamond saw blade for glass cutting technical field The invention relates to a production process of a special diamond saw blade for glass cutting. Background technique The main structure of the diamond saw blade is to fix the cutter body on the outer edge of the substrate. At present, domestically produced diamond saw blades are mainly used for cutting stone, granite, etc. In these occasions, the cutting quality requirements of diamond saw blades are not high, but the cutting length and single cutting time of saw blades are simply higher. With the development of society, glass products are used in the walls of many high-rise buildings. The wide application of glass walls makes the whole society have higher and higher requirements for glass cutting. Traditional glass cutting mainly uses diamond glass cutters or hard alloy tools. The defects of these two kinds of diamond saw blades are: the thickness of cutting glass is small, the cut...

AI Technical Summary

Problems solved by technology

The invention adopts heat treatment process to solve the problem of insufficient matrix hardness; the hardness of the matrix can reach more than 48 Rockwell hardness; the heat-treated matrix is ​​ground to ensure that the flatness error on both sides of the matrix is ​​less than 0.3mm, and reduce the lateral vibration when cutting glass ; Increase the cold pressure of the matrix and the binder, thereby increasing the density of the matrix and increasing the holding force of the matrix to the matrix; sintering with a hot-pressed stainless steel mold to ensure that the width of the steps on both sides of the diamond saw blade body is the same, so that the diamond When the saw blade cuts glass, both sides of the knife body are evenly stressed to ensure that the cutting seam is smooth and straight

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