A Study Of Test On Igorganic Coating Of Anti-Wear And Erosion Resistance At High Temperature

In this dissertation, the development of the inorganic binder and ceramic coatings technique was formulated。 The wear resistance and anti-erode inorganic coating was made with inorganic binder some aggregates and some stuffing. The inorganic binder was made by the author himself. The properties of the 45# steels which coated with the inorganic coating were particularly analyzed.Further ,the effects of ratio of aggerate to bond, aggregate size, bond density and Al/p on the coating wear-resistance property were described in preparing metallic-matric ceramic coating. It was found that the wear-resistance ceramic coating with excellent properties was prepared under the proper conditions. The research has indicated that the bond strength and the high temperature performance of copper-oxide with the binder of phosphoric acide and aluminum hydroxide is better,and that the coat performance of wear-resisiting is better if the coat is added to skeletal whose mixture ratio is 1:1,and its performance of wear-resisting will be increased if the skeletal material has coarse-to-fine ratio.Through the finite element numeral simulation and the experiment indicated coating thickness when 0.5mm the coating thermostable impact performance is good. Prepares the wear-resisting performance superior high temperature wear-resisting anti- eclipse inorganic coating in the 45# steel substrate. To stiffen the coating, the method of using chemical stiffener or heating was practical. Under the condition of heating or reacting with chemical stiffener, the stiffening mechanism is that phosphate is ploymerized to the network of ploymer which could bond together frmly.This coating could bear over 10 times thermal lash of cold and heating circulation between 25℃ and 600℃. For the technology and character of metallic-matirc ceramic coating which is prepared by using inorganic bond, related report have not been found. This findings not only supply the theoretical proof to using inorganic binder to prepare high temperature and wear-resisting anti- eclipse inorganic coating, but also supply one new path and new technique for solving the problem of wear-resisting anti-erosion on surface of metal in commercial.