Coating technology: Determination of coulomb efficiency of electrophoretic coating

Core tips: 1 Equipment for measuring coulomb efficiency of electrophoretic coatings: Tinplate 50mm × 120mm × (0.2-0.3mm), balance (sensitivity 0.001g); coulometer 2、 Determination of coulomb efficiency of electrophoretic coatings: a Take three tinplate, after surface treatment in accordance with the provisions of the preparation method of electrophoretic paint film, weigh it on the balance to the accuracy of 0.001g; b The coulometer is connected into the electrophoresis circuit in series; c Turn on the power supply of the coulometer, preheat it according to the requirements of the operating instructions of the coulometer Application scope and advantages of roller ceramic coating Recommended introduction: the surface of ceramic rubber plate used for roller ceramic coating is cast into durable rubber plate by hundreds of independent small ceramic pieces Each ceramic piece has raised characteristics Under general conveyor belt pressure, thousands of unique cast bumps can produce positive traction, prevent slipping and extend the service life of conveyor belt roller At the same time, the bottom layer adopts high-quality rubber, which has strong elasticity and can play a good impact resistance role The scope of application of roller ceramic coating is one three six 83857180 (the same as V) 1 Roller coating in extremely harsh working environment 2 The belt joint is not suitable for fixing with iron buckle; 3 It is suitable for leather Coating home news: 1 Equipment for measuring the coulomb efficiency of electrophoretic coating: Tinplate 50mm × 120mm × (0.2-0.3mm), balance (sensitivity 0.001g); 2 Coulometer method for measuring the coulomb efficiency of electrophoretic coating: A take three tinplate, conduct surface treatment according to the provisions of the preparation method of electrophoretic coating film, and weigh on the balance to the accuracy of 0.001g; b Connect the calibrated coulometer in series into the electrophoresis circuit; C connect the power supply of the coulometer, preheat it, adjust it according to the requirements of the operation manual of the coulometer, and select the appropriate range; D prepare the paint film by electrophoretic coating on the test plate, and read the Coulomb reading indicated by the coulometer; e after the test plate is cooled to room temperature in the dryer, weigh it on the balance, with the accuracy of 0.001g Calculation: the coulomb efficiency (mg / C) is calculated according to the following formula: x = (g1-g2) / Q G1 - the weight of test plate after the coating of electrophoretic coating, Mg G2 - the weight of test plate before the coating of electrophoretic coating, Mg Q - the Coulomb number indicated by the coulometer, C the home of coating is focused on coating, diatom mud, paint coating, coating process, news information and coating of fire retardant coating, diatom mud, paint coating, coating process, fire retardant coating Decoration knowledge and decoration renderings,