Fasteners, fastened and used for a very wide range of a […]
Fasteners, fastened and used for a very wide range of applications and a type of mechanical parts. Fasteners, the use of a wide range of industries, including energy, electronics, electrical appliances, machinery, chemicals, metallurgy, mold, hydraulic and so on. A wide range of fasteners are available on all types of machinery, equipment, vehicles, ships, railways, bridges, buildings, structures, tools, instruments, chemicals, instruments and supplies. Basic parts. It is characterized by a wide variety of specifications, performance, use different, but also standardization, serialization, the degree of generalization is also very high. Therefore, some people also refer to a type of fastener that already has a national standard as a standard fastener.
Galvanized metal corner bracket is also a fastener, it is often found in furniture supplies. Zinc plating refers to the surface of metal, alloy or other materials coated with a layer of zinc in order to play a beautiful, rust-proof surface treatment technology. The main method is hot dip galvanized. Zinc soluble in acid, but also soluble in alkali, it is called amphoteric metal. Zinc does not change much in dry air.
Since zinc is not easily changeable in dry air, in moist air, the surface produces a dense zinc carbonate film that effectively protects the galvanized metal corner bracket from corrosion. A thick, dense layer of pure zinc overlays the surface of the steel fastener to prevent contact between the steel substrate and any corrosive solution and protect the steel fastener body from corrosion. In the general atmosphere, the surface of zinc layer to form a thin and dense zinc oxide layer surface. It is difficult to dissolve in water, it plays a protective role on the base of steel fasteners.
The surface of the galvanized metal corner bracket after hot-dip zinc is bright and beautiful. The pure zinc layer is the most plasticized layer of galvanized layer in hot-dip zinc, and its properties are basically close to pure zinc with good ductility. This plating method is especially suitable for all kinds of strong acid, alkali mist and other strong corrosive environment.