Preparation And Properties Of Corrosion-wear Resistant Coating With The Pits Form Non-smooth Surface

The energy crisis is becoming increasingly prominent. Energy conservation is the urgent problem of the modem society. The subject carried out is for two energy waste more serious phenomenon:corrosion and wear. This subject is hoped to make some contribution to the energy conservation and energy efficiency.The coating technique is the major method to ease the abrasion and corrosion to the substrate from outside dielectric. Thereby reduce the consumption of the substrate in order to improve the utility efficiency of energy. The corrosion and wear resistance coating is designed to achieve the dual function. In the process of this subject implementing, some conclusions are summarized as follows.(1) Vinyl chloride and vinyl isobutyl ether copolymers is introduced to toughen the tetrafunctional epoxy resin. The experiment results show that the toughening effect is better than any of others when Vinyl chloride and vinyl isobutyl ether copolymers accounts for15percent of the total coating. The impact strengthen of coating in50cm-kg becomes flawless. The flexibility of the coating derived from1.5mm up to0.5mm.(2) Optimized the factors which affect the corrosion resistance of the coating by orthogonal experiment. The factors include the amount of tetrafunctional epoxy resin, glass flake amount, the amount of titanium dioxide and the hardener. The coating has good corrosion performance when tetrafunctional epoxy resin in an amount of10%, the glass flakes used in an amount of30%, an amount of10%titanium dioxide derived and the hardener in an amount of40%by processing of the orthogonal test.(3) This paper analysis’s the impact of bionic non-smooth concave surface abrasion resistance of various morphology parameters and applied load conditions simulated by the finite element analysis. the equivalent friction coefficient is estimated using energy loss and conservation theory, by contrasting the equivalent friction coefficient, the optimal combination of morphology parameters were ultimately determined:pit diameter is2μm; distance between pits is4.5μm; coating thickness is200μm; the pressure coefficient k is1000pa/mm; the sliding speed is3m/s; the concave bionic non-smooth surface coating drag reduction performance. Comparing the wear resistance of concave bionic non-smooth surface with smooth surface in the same boundary conditions, concave bionic non-smooth surface demonstrates the excellent drag reduction performance; the drag reduction efficiency is up to48.42%compared with smooth surface and up to15.57%compared with smooth coating surface. (4) Energy loss theory and Ansys simulation are combined in this paper. Assume that friction work totally translates into heat and Local equilibrium assumption, the friction force can be solved by using the relationship between the work and temperature rise. And so the equivalent friction coefficient function can be worked out through the friction force.