A kind of interlayer matrix material and preparation method of diamond cutter head

Abstract

The invention discloses a preparation method of an interlayer matrix material and a diamond cutter head, belonging to the field of stone cutting. The components and mass percentages in the interlayer matrix material are: 85-65% Fe, 8-15% Zn, 5-20% Cu and 2-5% ALSi, put the interlayer carcass material, the first working layer mixture and the second working layer mixture into the corresponding hoppers respectively; send the first working layer mixture into the mold In the cavity, the interlayer carcass material and the second working layer mixture are repeatedly fed into the mold cavity, and the preloading pressure each time is 50-100KG / cm higher than the previous preloading pressure. 2 , demoulding and sintering to obtain the desired diamond bit. The beneficial effects of the invention are as follows: using coarse-grained elemental Fe powder, the powder has a smaller specific surface area and stronger anti-oxidation ability, and is applied to a multi-layer automatic cold press, which can greatly reduce labor and materials while improving efficiency. cost, and maintain good sintering performance, achieve good sintering density, have good strength, and can effectively match the wear rate of the working layer of the cutter head.

Description

technical field [0001] The invention relates to the field of stone cutting tools, in particular, to a preparation method of an interlayer matrix material and a diamond cutter head. Background technique [0002] The traditional diamond cutter head is composed of a working layer and an iron sheet sandwich. The production process is to manually superimpose the working layer and the iron sheet into a graphite mold, and then sinter it. Although the cutter head produced by this process has some sharpness. Great progress, but a lot of labor costs are needed. With the fierce competition of products and the rise of labor costs, the automation and intelligent development of equipment have been promoted, and the multi-layer automatic cold press has also emerged as the times require. Multi-layer cold pressing can be realized automatically, reducing the cost of cold pressing and the cost of blanking and sintering in the later stage, but the traditional iron sheet sandwich is incompressib...

AI Technical Summary

Problems solved by technology

[0002] The traditional diamond cutter head is composed of a working layer and an iron sheet interlayer. The production process is to manually superimpose the working layer and the iron sheet into a graphite mold, and then sinter it. Although the cutter head produced by this process has a sharpness It has made great progress, but it needs to invest a lot of labor costs. With the fierce competition of products and the increase of labor costs, it has promoted the automation and intelligent development of equipment, and multi-layer automatic cold presses have also emerged at the historic moment. It It can automatically realize multi-layer cold pressing, reduce the cost of cold pressing and the cost of billet loading and sintering in the later stage, but the traditional iron sheet interlayer is incompressible and cannot be used for multi-layer automatic cold pressing equipment, so the powder interlayer of diamond cutter head is used It is imminent to replace the iron sheet compartment

Images