Bearing several commonly used surface protection technology

Bearing several commonly used surface protection technology, A) Adopt the method of electrolytic plating in matrix ( After pretreatment) Sedimentary needed to cover the surface of the process known as electroplating. Electroplating is of a very old traditional technology, widely used in the permanent decoration and protection. Can be divided into single metal plating, electroplating multilayer composite plating, and alloy plating, etc. There are many factors affecting the quality of coating, such as: plating pretreatment, plating solution way of purification and degree, the rationality of the way to the plating, the plating solution system set up, the determination of composition and thickness, the process parameters ( PH, temperature, current density) , additives ( Brightening agent, leveling agent, in addition to the stress agent, wetting agent, dispersant) , analysis of plating solution and the complement system, operating system, post-treatment of plating ( To hydrogen, closed) And so on. Due to the plating three wastes pollution to the environment and the influence is healthy, environmental protection departments around the increasingly strict management, many enterprises do not set electroplating workshop, but to professional factory, The workshop) Processing. In order to ensure the quality of the chrome, should according to relevant standards and regulations for the appearance, adhesion and thickness of the coating, porosity and corrosion resistance by specific request. Once the acceptance or use of quality problems, to facilitate quality accident analysis and improvement. （ 2) Oxidation oxidation treatment are divided into ferrous oxide and non-ferrous metal oxidation treatment, this involves only the former. The steel and alloy oxidation treatment, also called blue or black finish. Because of its low cost, high efficiency, achieved fast and stable process, easy operation and simple equipment, use very extensive. Bearings, comfortable and durable, )