Method for finishing aggregates for pressing disc cutters

Abstract

The invention discloses a method for finishing aggregates for pressing disc cutters. The method comprises the following steps of (A), mixing the aggregates uniformly; (B), rubbing and sieving the uniformly-mixed aggregates through a rubbing and sieving machine with the mesh size of 80 meshes and collecting the falling raw materials below a sieve; (C), stopping the rubbing and sieving machine 20 minutes after rubbing and sieving and recycling the aggregates remaining in the sieve of the rubbing and sieving machine; and (D), putting the collected falling raw materials below the sieve of the rubbing and sieving machine onto a vibrating sieve with the mesh size of 200 meshes, sieving the collected raw materials and collecting the raw materials remaining on the vibrating sieve to serve as pressing materials of the disc cutters. The method for finishing the aggregates for pressing the disc cutters aims at achieving the purposes that the raw materials for pressing the disc cutters are sieved, the grain size of the raw materials is improved, and the rejection rate of the disc cutters is lowered.

Description

technical field [0001] The invention relates to the field of disc knife production, in particular to a finishing method for pellets pressed into disc knives. Background technique [0002] Disc knives, also known as disc knives, are often used in grinding, cutting and other work in the mechanical field, and have a wide market. In the existing wafer cutter production process, pellets or powder are used to press into semi-finished wafers, and then sintered at high temperature to achieve consolidation and molding. However, the existing disc cutter is difficult to press and form. Because the disc cutter has a large diameter and is very thin, when using the existing pellets to press, the semi-finished product has poor density, and the product is not easy to be placed on the plate, and the metallographic phase of the product cannot be obtained. ensure. If powder is used for pressing, the fluidity of the powder is poor, which will easily lead to uneven pressing and charging, resul...

AI Technical Summary

Problems solved by technology

However, the existing disc cutter is difficult to press and form. Because the disc cutter has a large diameter and is very thin, when pressing with the existing pellets, the density of the semi-finished product is relatively poor, the product is not easy to be placed on the plate, and the metallographic phase of the product cannot be obtained. ensure

If powder is used for pressing, the fluidity of the powder is poor, which will easily lead to uneven pressing and charging, resulting in large deformation of the product after sintering

Therefore, for the production of disc knife in the prior art, its scrap rate is very high, and waste is very big

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