A kind of production process of diamond saw blade

Abstract

The present invention relates to a kind of production technology of diamond saw blade, specifically comprises the following steps: A, batching: by weight fraction, diamond powder 15-20 parts, copper powder 20-25 parts, iron powder 30-40 parts, manganese powder 20 parts ‑25 parts, nickel powder 4‑5 parts, glass fiber powder 20‑30 parts, ceramic powder 10‑20 parts, iron oxide powder 3‑5 parts, zinc oxide powder 6‑8 parts, pore-forming powder 2‑4 parts; B. Mixing and cold pressing: Mix the above raw materials, stir and mix the above ingredients through the stirring blade of a special cold press, the stirring speed is 400r / min-480r / min, and press the ingredients on the outer edge of the matrix to form a workpiece a, pressing pressure It is 200KN‑280KN; C. Sintering: place it in the sintering furnace and adopt the method of pressurizing first, then raising the temperature, first cooling down and then releasing the pressure, and sintering at a temperature of 830°C‑840°C and a pressure of 6GPa‑8GPa to obtain the workpiece b; D 1. Polishing and spraying paint; E. Sharpening: cutting the above-mentioned workpiece through a saw blade to form a plurality of cutting grooves on both sides of the diamond blade. The invention has the advantages of cost reduction, structural strength improvement, shock absorption and heat dissipation.

Description

Technical field: [0001] The invention belongs to the field of cutting, and in particular relates to a production process of a diamond saw blade. Background technique: [0002] Diamond saw blade is a kind of cutting tool, which is widely used in the processing of hard and brittle materials such as stone, concrete, prefabricated panels, ceramics, new roads, etc. The diamond saw blade is mainly composed of a base body and a cutter head. The main support part, while the cutter head is the part that cuts during use. At present, the production process of diamond saw blades mostly adopts electroplating, high-frequency welding and laser welding. These three production processes will affect the structural strength and cutting hardness of diamond saw blades. It is easy to break under the welding seam, and there are pores or welding spots in the welding seam, and the welding strength is low. [0003] In order to solve the above technical defects, the current production enterprise pro...

AI Technical Summary

Problems solved by technology

At present, the production process of diamond saw blades mostly adopts electroplating, high-frequency welding and laser welding. These three production processes will affect the structural strength and cutting hardness of diamond saw blades. It is easy to break under the weld, and there are pores or weld bumps in the weld, and the welding strength is low.

[0003] In order to solve the above technical defects, the current production enterprise proposes a production process of pressing and sintering diamond powder to replace the production method of electroplating and welding. Firstly, the cost of pure metal powder is relatively high, and secondly, the cutting sheet made of pure metal powder is at high speed. During the cutting and grinding process, a large amount of heat will be generated, which will burn the workpiece, and the thermal stress inside the matrix of the diamond saw blade will be concentrated. At the same time, the vibration wave will propagate to the center of the matrix, causing the cutting blade to crack and deform at the center

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