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, and ensure that the conveyor belt runs smoothly 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 the erosion of water...

AI Technical Summary

Problems solved by technology

In the current technology, due to the imperfect material and structure of the idler, during the use of the idler, due to the erosion of water, dust, and various harmful substances (acid, alkali, salt, etc.), the parts are corroded, resulting in poor sealing effect. Long-term maintenance, especially non-wearing, shortens the life of the idler

Traditional idlers made of seamless steel pipes are prone to chemical corrosion and static electricity during operation, which limits their use. The average life of national steel idlers is much lower than the design order, generally in the 8000h or less, while the rollers made of wear-resistant ceramics on the market have the advantages of wear resistance, acid and alkali resistance, and oxidation resistance, but they have disadvantages such as heavy weight, poor toughness, and brittleness. They are made of a single polymer material Compared with steel rollers, it not only has the advantages of light weight, low cost, corrosion resistance, impact resistance, and low noise in high-speed operation, but plastic rollers are resistant to temperature, climate change, and wear. The performance is not as good as that of ceramics, so it can be said that idlers made of these materials generally have defects such as short life and large maintenance, which restrict the development of belt conveyors to a certain extent.