High-strength and shock-resistance type metal ceramic composite lining plate and preparation method thereof

Abstract

The invention discloses a high-strength and shock-resistance type metal ceramic composite lining plate and a preparation method thereof. The composite lining plate comprises, by mass, 20-80 parts of ceramic particles, 30-80 parts of metal powder, 30-50 parts of ultra-high molecular weight polyethylene, 5-10 parts of medium density polyethylene, 6-8 parts of low density polyethylene, 1-3 parts of magnesium hydroxide, 1-2 parts of diatomite, 10-15 parts of glass fibers, 0.5-1 part of dicumyl peroxide, 1-5 parts of coupling agent, 1-3 parts of antistatic agent, 1-3 parts of curing agent and 1-2 parts of addition agent. The preparation method includes the steps that the ceramic particles, the metal powder and the addition agent are mixed first so that a mixture A can be obtained; then the other components are mixed so that a mixture B can be obtained; afterwards, the mixture A and the mixture B are mixed, formed, sintered, quenched and tempered, and accordingly the composite lining plate is obtained. The metal ceramic composite lining plate has the characteristics of excellent abrasion resistance, impact resistance, chemical corrosion resistance and low-temperature toughness, and meanwhile has the characteristics of being good in processability and low in material cost.

Description

technical field [0001] The invention relates to a composite liner, in particular to a high-strength impact-resistant cermet composite liner and a preparation method thereof. Background technique [0002] Ball mills, crushers, and roller presses are key equipment widely used for grinding materials in building materials, mining, metallurgy, electric power and other industries. Grinding balls, liners and hammers are the most commonly used grinding media in ball mills and crushers. The part with the largest consumption of wearing parts in the industry; with the continuous development of various industries, the specific surface area and fineness of materials are more and more required, and it is particularly important for enterprises to choose the correct material for grinding bodies. The grinding body with high wear resistance can not only improve the grinding efficiency, reduce the number and time of starting and stopping replenishment replacement while keeping the gradation un...

AI Technical Summary

Problems solved by technology

At present, the main domestic production methods of grinding balls are: 1. Forging grinding balls, 2. Casting grinding balls. The grinding balls produced by these two production methods consume a lot of raw materials, cause great environmental pollution, and are manually operated and labor-intensive. Large fluctuations in quality and low degree of mechanization lead to low production efficiency

[0004] Production of grinding balls and liners of ball mills, hammer heads of crushers and roll sleeves of roller presses. Alloy (cast ball), etc.; the production materials of the above products belong to the category of metals. As we all know, it is difficult to get a perfect balance of mechanical toughness, impact resistance and wear resistance in a single metal material

[0005] In addition, the grinding balls, lining boards and hammer heads of the crusher are also subjected to high stress impact during the working process. If the hardness is too high, the toughness will decrease, which will lead to the occurrence of fatigue peeling and crushing of such wear-resistant parts during use. If the hardness is too low, it will wear out in a short time and cause a waste of resources.