Analysis of eight plating defects in aviation plugs!

Aviation plug is a kind of connector, originated from the military industry, so it gets its name, referred to as aviation plug. Aviation plugs are electromechanical components that connect electrical circuits, so their own electrical parameters are the first thing to consider when choosing aviation plugs. Correct selection and use of aviation plug is to ensure the reliability of the circuit is an important aspect. 1, over-erosion (over pickling): plating process will use acid or alkali to clean the workpiece, if too many impurities in the workpiece, it will be in the process of chemical reaction with acid or alkali, resulting in excessive erosion of the surface phenomenon. 2, peeling, bagging: skinning, bagging is actually the plating layer with the separation of the base metal between the general Caused by the following reasons: high pH value of the plating solution, poor pre-treatment before plating, incomplete cleaning of organic impurities, plating process interruptions or poor contact with the hangers. 3, burnt: in the formation of the color of the high current density of the dark, rough and loose or poor quality deposits, these deposits often contain oxides and other impurities. 4, pitting corrosion: commonly found in the die-casting shell products, die-casting produces The cavities formed by die-casting will remain in the tank liquid, which forms a local battery effect, resulting in the plating layer is not everywhere dense, the formation of pitting corrosion. 5, dendritic plating: common in the edge of the workpiece, which is due to the formation of rough loose dendritic loaded on the cathode when plating or irregular protruding deposits. 6, flooding: stains the formation of spots. 7, discoloration: commonly found in the silver-plated portion of the oxidation, the general formation of reasons for the plating layer is too thin, but also may be sweat contact. There may also be sweat contact, or the role of the environment to form the darkening, loss of light. 8, spongy plating: mainly in the plating process in the shape of the base material and the combination of loose porous accumulation of material is not solid, less common.

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