China Au(Gold) Plate Suppliers
According to the characteristics of the process, there are two kinds of cyanide gold plating and cyanide gold plating: Jin Yuan. At present, the quality of gold plating is cyanide (potassium cyanide) gold plating is good, its color, adhesion, wear resistance are better than non cyanide gold plating. Function can increase the conductivity of the material. The appearance of gold plated layer, has high chemical stability, only soluble in aqua regia, insoluble in other acid. The valence of gold. The standard potential Au+/Au of monovalent gold is +1.68V, and the standard potential of trivalent gold is Au3+/Au at +1.50V. In the case of steel, copper, silver and its alloy matrix, the gold deposit is a cathodic coating.
Jin Yuankang gold plating layer good ductility, easy polishing, high temperature resistance, with good anti tarnish properties. Gold plating on the silver layer can prevent the discoloration of silver; gold alloy coating can show a variety of colors, it is often used as decorative coatings, such as plated jewelry, watches and parts, works of art, etc..
Jin Yuan Kang plated with low contact resistance, good conductivity, easy welding, strong corrosion resistance and good abrasion resistance (of hard gold), so the precision instruments, printed circuit boards, integrated circuit, shell, electric contact has been used.