HTC Micro arc oxidation proecess скачать в хорошем качестве

HTC Micro arc oxidation proecess

HTC Micro arc oxidation proecess Email: platingmac@live.com http://platingmachines.com/micro-arc-... Micro arc oxidation machine basic concept: Micro arc oxidation (Microarc oxidation, MAO, Micro arc anodizing), also known as micro-plasma oxidation (Microplasma oxidation, MPO), which through a combination of electrolyte and corresponding electrical parameters, depended on impact of instantaneous high temperature & pressure generated by arc discharge, in order to grow out of ceramic coating on surface of aluminum, magnesium, titanium and its alloys based on metal oxide-based as priority. In process of micro arc oxidation, chemical oxidation, electrochemical anodizing, plasma oxidation coexist, so the process of forming of ceramic layer is very complex, so far there is not a reasonable model to fully describe the formation of the ceramic layer.Micro arc oxidation processes lead ordinary anodization from Faraday area introduced into high-pressure discharge area, by mean of this, overcome the shortcomings of hard anodizing, which greatly enhancing the overall performance of film. Combine of micro-arc oxidation coating with substrate has features of solid, compact structure, high toughness, with good wear resistance, corrosion resistance, heat shock and electrical insulation properties. This kind of technique has advantages of simple operation and easy to realize film layer functions adjustment, and process is not complicated, also does not cause environmental pollution, that is a new environment-friendly surface treatment technology, who has broad application prospects in aerospace, machinery, electronics, decoration and other fields. 2, Micro arc oxidation machine principle and features: Micro arc oxidation or micro plasma surface ceramic technology, refers to under the basis of general anodization, using arc discharge to enhance and active reactions occurring at the anode, resulting in surface of aluminum, titanium, magnesium and its alloy metal as materials workpiece to form quality reinforced ceramic layer. By using dedicated micro arc oxidation power supply to apply voltage on workpiece, to make interaction of parts surface metal and electrolyte solution, then go generate micro arc discharge on workpieces surface, under influence of factors of high temperature, electric field, etc., the metal surface to form a ceramic layer to reach the surface strengthening purposes. Micro-arc oxidation machine technology features: (1), Significantly increases materials surface hardness, hardness in 1000 to 2000HV, max. up to 3000HV, even can comparable with hard alloy, the hardness significantly exceed than high carbon steel after heating treatment, heat alloy steel, and high speed tool steel; (2), Good wear resistance; (3), Good heat resistance and corrosion resistance. This overcomes fundamental application shortcomes of aluminum, magnesium, titanium material, so the technology has broad application prospects;