Special hammer head for hammer crusher and preparation method of hammer

Abstract

The invention discloses a special hammer head for a hammer crusher, which is formed by mixing 91-93 % of raw material tungsten carbide, 2-2.5 % of carbon black, 2-2.5 % of binder, 0.25-0.5 % of titanium carbide, 0.25-0.5 % of chromium carbide and 2.5-3.5 % of pure water and then sintering the mixture at high temperature. The special hammer head of the hammer crusher has characteristics of that rawmaterial proportioning is scientific, the tungsten carbide is taken as a main raw material, and the carbon black, the binder, the titanium carbide, the chromium carbide and pure water are taken as auxiliary materials, the tungsten carbide has ultra-strong hardness, the carbon black removes mixed oxygen and oxygen ions in other oxides in materials, so that product characteristics can be improved;the titanium carbide and chromium carbide reduce alloy sintering temperature, so that the strength and toughness of finished products are improved; the pure water ensures physical mixing uniformity, and the pure water and the binder ensure isostatic pressing forming of materials. When the finished hammer head crushes hard materials such as carbonized stone, the service life of the finished hammerhead is 3-5 times longer than that of common steel material, so that the service life is greatly prolonged, the maintenance cost and the labor intensity of maintenance personnel are saved, and the working efficiency is improved; and meanwhile, the finished hammer head can be used on complex environmental conditions without affecting use effect at 150 DEG C.

Description

Technical field [0001] The invention relates to a hammer crusher, in particular to a hammer head special for a hammer crusher. The invention also includes a preparation method for the hammer head special for a hammer crusher. Background technique [0002] The hammer crusher (hammer crusher) is used to crush various medium-hard and weakly abrasive materials. Generally speaking, the compressive strength of the materials does not exceed 100MPa, and the water content is less than 15%. The crushed materials are coal, salt, and chalk. , Gypsum, bricks and tiles, limestone, shale, etc. It is also used to crush wood, paper or broken asbestos cement with strong fiber structure, elasticity and toughness to recycle asbestos fibers. In addition, the hammer crusher can be used not only The crushing production line and sand making production line can also replace the cone crusher in the beneficiation production line. [0003] The hammer head is the main working part of the hammer crusher. At pr...

AI Technical Summary

Problems solved by technology

[0003] The hammer head is the main working part of the hammer crusher. At present, the hammer head used in the hammer crusher is a manganese alloy hammer head. Although it is more wear-resistant than ordinary carbon steel, its hardness has been significantly improved, and it can crush kaolin, limestone, slag, marble, and pebbles. Significant, but when crushing carbonized fossil (such as moissanite) and other materials with high hardness and toughness, the hammer head wears seriously, and the replacement of parts is time-consuming, resulting in extremely low production efficiency

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