Super-hard abrasive brazing tool distributing technology

Abstract

The invention discloses a super-hard abrasive brazing tool distributing technology. The super-hard abrasive brazing tool distributing technology comprises the steps of: 1, cleaning the surface of a base body; 2, coating a layer of thick binders with the volume concentration of being 20 to 60% on the surface of a distributing area for distributing the abrasives; 3, distributing the abrasives of 10 to 300 meshes on the surface of the binders, wherein the space L between two adjacent abrasives is 0.02 to 15mm; 4, distributing spherical or sphere-like solder particles on the surfaces of the binders; 5, spraying 5 to 15% of thin binders based on the volume concentration in the distributing area so as to fix the diamond and the welder; and 6, cleaning the base body after the diamond and the welder are fixed. According to the super-hard abrasive brazing tool distributing technology, the welder with the proper granularity is selected and is matched with the brazed super-hard abrasives in granularity, and distributing equipment is arranged for being matched for use, so that the quality of brazing can be ensured, and the operation in the industrial production can be convenient to carry out. According to the design scheme provided by the invention, the adaptability to tools is good, the quality of the brazing is high, the continuous production can be carried out, the consistency is ensured, and the industrial production can be achieved.

Description

technical field [0001] The invention relates to a brazing superhard tool material distribution process, which is widely used in the production of brazing diamond saw blades, brazing diamond drill bits, brazing diamond grinding wheels, brazing beaded wire saws, special-shaped diamond tools, brazing CBN tools, and alloy chips. Granules and other superhard tools. The superhard abrasive tool prepared by the method can be applied in the fields of stone processing, metal or nonmetal processing, mining and the like. Background technique [0002] The traditional superhard tools represented by diamond tools can be divided into two categories: electroplating tools and sintering tools, each of which has its own strengths. However, due to the high surface energy of the diamond surface, it is difficult to infiltrate with common metals, and there is no firm metallurgical bonding layer at the interface between the abrasive grains and the matrix metal. The carcass has a small holding forc...

AI Technical Summary

Problems solved by technology

[0008] There are certain defects in the above two methods

The first method is difficult to control the brushing thickness of solder, and it is easy to cause too little or too much solder

It is also difficult to paint evenly, and it has poor adaptability to workpieces with large curved surfaces (special-shaped grinding wheels) and sharp-edged workpieces (such as saw blades). In addition, the mixing of powdered solder and adhesive is also difficult to control. Generally, the binder will be partially volatilized, and the concentration of the prepared solder paste is constantly changing, which may easily cause uneven thickness when smearing the workpiece; and because the brazing solder is generally a metal with a high density, it is easy to precipitate from the binder and form a precipitate block, also affects the use of cream solder

The second method is easy to operate on flat workpieces, but it is more difficult for curved surfaces and rotating parts

Although this process method is not difficult to operate, after the semi-finished product is brazed, the abrasive is difficult to be exposed, or even not exposed, and it is more difficult to mix evenly for large-grained abrasives.

The tools prepared by this process actually lose the advantages of brazing superabrasive technology, and cannot play the revolutionary effect of high sharpness and large chip removal space brought by brazing technology.

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