电泳的工艺流程--铝合金电泳（Electrophoresis process -- aluminium alloy electrophoresis）.docVIP

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电泳的工艺流程--铝合金电泳（Electrophoresis process -- aluminium alloy electrophoresis）.doc

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电泳的工艺流程--铝合金电泳（Electrophoresis process -- aluminium alloy electrophoresis）

电泳的工艺流程--铝合金电泳（Electrophoresis process -- aluminium alloy electrophoresis） Electrophoresis process -- aluminium alloy electrophoresis First of all, electrophoretic coating (electro-coating) is a coating method which uses the applied electric field to migrate the pigment and resin which is suspended in the electrophoretic liquid and then deposited on the base surface of one of the electrodes. The principle of invention of electrophoresis coating and at the end of 1930s, but the development of the technology and industrial application after 1963, electrophoresis coating is a kind of special coating developed in recent 30 years is the formation method, construction technology has practical significance for waterborne coatings. Water soluble, non-toxic, easy to control the characteristics of automation, automotive, building materials, hardware, home appliances and other industries have been widely used. The electrophoretic coating and the corresponding electrode workpiece into water soluble paint, after the power is switched on, depending on the physical and chemical effects produced by the electric field, the resin, pigments and fillers in paint to be painted as a method of coating on the surface of the electrode uniform deposition to form insoluble film. Electrophoretic coating is a very complicated electrochemical reaction process, at least four processes including electrophoresis, electrodeposition, electroosmosis and electrolysis. According to the performance of electrophoretic coating deposition can be divided into anode electrophoresis (workpiece is anode coating is anionic) and cathode electrophoresis (workpiece is cathode coating is cationic); according to the power supply can be divided into DC and AC electrophoresis electrophoresis; according to the process and method of constant voltage and constant current method. At present, it is widely used in industry, that is, anodic electrophoresis with DC power supply and constant voltage method. 1- workpiece after s