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Ceramic lined composite wear-resistant pipe - a new type of composite material with international advanced level


Development of ceramic lined composite wear-resistant pipe is a national "863" project, which is developed by University of Science and Technology Beijing and is a new type of composite material with international advanced level. Ceramic lined composite wear-resistant pipe from the inside to the outside, by the ceramic layer, the transition layer and the steel tube. The ceramic layer is made of 2600 degrees above the molten aluminum oxide, under the action of centrifugal force, uniform composite in the steel tube after the solidification of the formation of the layer, the layer is dense, smooth, and the steel tube is firm, appropriate, uniform combination.
Ceramic lined wear-resistant pipe with excellent wear resistance, heat resistance, mechanical and thermal shock resistance, easy welding and installation, especially adapted to the wear and erosion of serious material conveying occasions, such as coal, metallurgy, coal, mining, geological and other industries of the material and general road transport. Compared to common seamless steel tube, the service life of the ceramic lined steel composite pipe has grown exponentially, instead of casting Sheng tube, alloy pipe, organic material liner, is an ideal wear-resistant pipes.
The product is countries "863" high-tech new materials experts committee of the key support and promotion of the project, the State Science and Technology Commission and was included in the "Ninth Five Year Plan" national torch plan, the product also in 1994, respectively, through the Ministry of metallurgical industry and the Ministry of electric power scientific research achievements and product identification. Its characteristics are as follows.
Good abrasion resistance: ceramic lined composite steel pipe inner ceramic corundum, Mohs hardness in more than 90, equivalent to more than hrc90, so for electricity, coal, mines the delivery of any media have a high wear resistance.
The loss of operation risk is small, the ceramic lined composite steel pipe is carried out by the authority of the test, the result is ideal.
Engineering cost low: ceramic lined steel composite pipe because of the light weight, the use of high ordered, thereby reducing the installation cost and transportation cost, ceramic lined composite pipe is the total cost of the project and cast stone tube quite, 30 percent to 20 percent lower than the wear-resistant steel pipe. Good temperature resistance, ceramic lined composite steel pipe can be in the range of fifty degrees below zero, the long-term normal operation, the expansion coefficient of the material is 6~8 * 10/ 6.
Easy installation and construction: ceramic lined with wear-resistant pipe weight, compared with the same diameter of other tubes, can save steel thirty percent to twenty, and has a heat resistance and resistance to mechanical impact, such as a good comprehensive performance, can be used welding, flange and other fast connection mode, construction and installation.
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