Hammer head special for hammer crusher and preparation method thereof

Abstract

The invention discloses a special hammer head for a hammer breaker, which is made of 91%~93% tungsten carbide, 2~2.5% carbon black, 2~2.5% binder, 0.25~0.5% titanium carbide, and 0.25~0.25% chromium carbide. 0.5%, pure water 2.5~3.5% mixed and then sintered at high temperature. The invention has a scientific ratio of raw materials, using tungsten carbide as the main raw material, supplemented by carbon black, binder, titanium carbide, chromium carbide and pure water, tungsten carbide has super hardness, carbon black removes mixed oxygen and other oxidation Oxygen ions in the material can improve product characteristics. Titanium carbide and chromium carbide can reduce the sintering temperature of the alloy and improve the strength and toughness of the finished product. Pure water ensures the uniformity of physical mixing and isostatic pressing of materials together with the binder forming. When the finished hammer head crushes relatively hard materials such as carbonized fossils, its service life is 3 to 5 times longer than that of ordinary steel, which greatly prolongs the service life, saves maintenance costs and labor intensity of maintenance personnel, and improves work efficiency; at the same time, it can be used Due to complex environmental conditions, its use effect will not be affected at a temperature of 150°C.

Description

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

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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