Electroplating hot-pressing diamond saw blade and method for manufacturing same

Abstract

The invention relates to a diamond saw blade and a manufacturing method thereof. An electroplated hot-pressed diamond saw blade, which includes a saw blade base (3), is characterized in that the outer edge of the saw blade base (3) is provided with a hole that matches the shape of the tail end of the hot-pressed T-shaped cutter head (2). The tail end of the T-shaped cutter head (2) is embedded in the hole groove, and the outer edge of the hot-pressed T-shaped cutter head (2) and the base of the saw blade is an electroplated nickel-cobalt alloy composite layer containing artificial diamond. The hot-pressed T-shaped cutter head (2) is mainly formed by mixing artificial diamond and metallurgical powder into a T-shaped graphite mold and hot-pressing at 700-800°C; the weight ratio of artificial diamond to metallurgical powder is 1 : 20, the particle size of artificial diamond is 46-70 mesh; the metallurgical powder is mainly composed of bronze powder, cobalt powder, nickel powder, manganese powder and tungsten carbide, and the weight percentage of each component is: bronze powder 35, cobalt powder 1, nickel Powder 5, manganese powder 5, tungsten carbide 54. The invention enables the diamond saw blade to have the characteristics of high blade strength, good use effect, simple production process and short production cycle.

Description

technical field [0001] The invention relates to a diamond saw blade and a manufacturing method thereof, in particular to a diamond saw blade and a manufacturing method thereof for cutting cement pavement expansion joints, concrete products, refractory materials, ceramics, gypsum boards and other building materials. Background technique [0002] In the prior art, there are two methods for producing diamond saw blades by hot pressing. One is to directly press the synthetic diamond and metal powder on the edge of the saw blade base by hot pressing; Artificial diamond and metal powder are pressed into impregnated cutter heads, and then the cutter head is welded to the blade of the base body with a high-frequency welding machine. The hot pressing means used in the above two methods must make the diamond withstand a high temperature of about 1000°C, so that the diamond Graphitization and thermal cracking will occur on the surface, thereby reducing the original strength and hardnes...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there are two methods for producing diamond saw blades by hot pressing. One is to directly press the synthetic diamond and metal powder on the edge of the saw blade base by hot pressing; Artificial diamond and metal powder are pressed into impregnated cutter heads, and then the cutter head is welded to the blade of the base body with a high-frequency welding machine. The hot pressing means used in the above two methods must make the diamond withstand a high temperature of about 1000°C, so that the diamond Graphitization and thermal cracking will occur on the surface, thereby reducing the original strength and hardness of the diamond. High-frequency welding will cause the diamond to be thermally damaged again, and the bonding strength is not high, and the saw blade cannot withstand large impacts

Invention patent CN86107053A discloses a method for preparing diamond saw blades with embedded cutter heads produced by electroplating. This method completely avoids diamond thermal damage and improves the use effect of diamonds. The disadvantage is that it takes a long time to produce diamond cutter heads. , the shape of the cutter head is not easy to control

ZL02147751.5 announced an embedded cutter head is polycrystalline diamond, which is characterized by hard and wear-resistant cutter head and long service life, but this product can only cut soft building materials, and the scope of use is limited

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