Polymer-ceramic composite material

Abstract

The invention discloses a polymer composite material for manufacturing a roller, which is prepared from the following materials in percentage by weight: 35-45% of nylon 6 (PA6), 20-35% of ceramic powder, 15-25% of glass fiber and 3-8% of composite solid lubricant, wherein the composite solid lubricant is prepared by mixing supramoly, graphite and other solid lubricant according to a weight ratio of 1:1-2. After being mixed according to the ratio, all the materials are mixed and extruded by a screw extruder, are subject to water-cooling pelleting, and are processed by an injection molding machine to be molded into a belt roller. The belt conveyor roller made of the composite material combines performance characteristics of polymer materials and ceramic materials, has the advantages of high strength, abrasion resistance, antistatic performance, flame retardance, corrosion prevention, light weight, low noise for high-speed operation, long service life, low price and the like, and can be widely used in industries or fields of smelting, mining, thermal power generation and the like.

Description

technical field [0001] The invention relates to a composite material for manufacturing idler rollers, in particular to a polymer-ceramic composite material for manufacturing idler rollers. Background technique [0002] Belt conveyor is a kind of conveying mechanical equipment commonly used in engineering. It has a simple structure, low cost, and is easy to maintain. It can meet the requirements of conveying materials at different distances. It is widely used in smelting, mining, thermal power plants and other engineering practices. middle. The role of the idler in the belt conveyor is to support the conveyor belt and heavy objects, reduce the regrinding of the conveyor belt and the swing during operation, so as to ensure the smooth operation of the conveyor belt in the predetermined direction. It is one of the important parts in the conveyor. In the current technology, due to the imperfect material and structure of the idler, during the use of the idler, due to water, dust ...

AI Technical Summary

Problems solved by technology

It is one of the important parts in the conveyor. In the current technology, due to the imperfect material and structure of the idler, during the use of the idler, due to water, dust and various harmful substances (acid, alkali, salt, etc.) Corrosion will cause corrosion to the parts, causing the sealing effect to not be maintained for a long time, especially not wear-resistant, which will shorten the life of the roller. It is easy to generate static electricity, thus limiting its use. The average life of national steel rollers is far lower than the design life, generally below 8000h, and the rollers made of wear-resistant ceramics on the market, although wear-resistant, acid and alkali resistant , anti-oxidation and other advantages, but it has the disadvantages of heavy weight, poor toughness and brittleness. Compared with steel rollers, plastic rollers made of a single polymer material have light weight, low cost, corrosion resistance, In addition to the obvious advantages such as impact resistance and low noise in high-speed operation, plastic rollers are not as good as ceramics in temperature resistance, climate change resistance, and wear resistance. Therefore, it can be said that rollers made of these materials generally have short life and large maintenance. Defects restrict the development of belt conveyors to a certain extent