the relationship between the surface treatment of hinge and rust
Author：admin Time：2014/12/27 17:33:05
conditions strictly said, in certain cases, is directly proportional to the surface treatment and rust resistance of the hinge, the surface treatment, the better, the stronger the rust resistance, surface treatment, the worse they rust resistance.Can literally hinges, therefore, the surface treatment of directly determine the grade of the product and in the service life of the corrosion.
To understand hinge rusty reason, first of all to understand its ways of surface treatment technology and the hinge of the surface treatment is divided into two kinds: spraying, electroplating, spray coating and electroplating are two completely different surface treatment processes.Powder spraying is also called the lacquer that bake, is to use tree as the foundation, the original color by adding other chemical composition proportion, so as to bring up the different color, such as white, black, coffee, etc.After powder coating to the surface of a hinge, after high temperature baking, make the powder melting, uniform adhesion on the surface hinges.The purpose of to enhance surface and corrosion resistant.What about rust is what reason, is a surface treatment does not reach the designated position, such as spraying a corner;The other one is after spraying the scratch, collision etc caused by damage to the surface coating layer.Electroplating rust to understand reason mainly is divided into two, one is in electroplating production process problems, such as pickling before electroplating, pickling purpose is to make the surface to be plated black embryo hinge page clean without impurities, impurities will affect the quality of electroplating, only by surface clean without impurities hinge page full electric conduction in the electroplating, thus fully receive the metal ion in plating solution, thus forming a plating, and the plating is to ensure that the hinge is beautiful, the key to keeping hinge corrosion resistance.In principle, the thicker the electrodeposited coating, electroplating, the more fully, the corresponding electroplating time is longer, the thicker the electrodeposited coating, the surface of the salt fog and corrosion resistant ability is higher.Second is protection for electric plating, after plating to avoid bruising, scratches, cut to cut electricity easily bruised after plating coating, exposing the iron, inside the air humidity is big, so it is easy to oxidation and rust.So the hinge is easy to rust.