Method for preparing column shaped horniness phase composite wear-resistant jaw plate

Abstract

The invention discloses a method for preparing a composite crushing plate with a columnar hard phase. A gear rack of the composite crushing plate with the columnar hard phase prepared by the method is formed by compounding a high hardness columnar hard phase and a high tenacity base metal. The method comprises the following steps: weaving alloy powder core materials into an alloy powder core material framework according to the shape of the gear rack on the crushing plate; fixing the framework on the crushing plate through binding or welding; through a casting method, performing in situ reaction on the alloy powder core materials to generate the columnar hard phase by using the high temperature of melted base molten metal; and performing the metallurgical combination of the hard phase and a base metal interface to form a high wear resistant high tenacity composite material on the gear rack of the crushing plate. The composite crushing plate prepared by the method has the advantages of high wear resistance, high tenacity, high tensile strength, high compression strength and the like. The method has the characteristics of small equipment input, low cost, simple operation and the like, and can be widely applied to various jaw type crushers.

Description

technical field [0001] The invention relates to a preparation method of a jaw plate used in jaw crusher equipment, in particular to a preparation method of a columnar hard phase composite wear-resistant jaw plate. Background technique [0002] As an important part of the jaw crusher, the jaw plate is easily damaged by wear and tear when crushing stones, ores and other materials. It is replaced frequently, which reduces the working efficiency of the equipment and causes a lot of waste of steel materials. Therefore, the jaw plate is usually required to have high wear resistance and high toughness, as well as good mechanical properties, and the safety and reliability of the equipment must be guaranteed. At present, the commonly used jaw plate materials are almost all made of single high manganese steel. The improvement of the work hardening ability of high manganese steel must be realized under high impact conditions, and the working conditions of jaw crushers do not have stro...

AI Technical Summary

Problems solved by technology

However, the wear-resistant layer of this composite material is only a single high-chromium alloy material. Although the wear resistance is good, the toughness is poor.

Although the toughness of the cast steel material of the lining layer is very high, it cannot directly improve the toughness of the wear-resistant working surface. It is conceivable that the wear-resistant layer is prone to brittle cracks during work, which eventually leads to detachment

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