Zinc ingot refers to pure zinc, of course there will be impurities, but as zinc ingot, at least more than 90% purity. Zinc ingot uses: mainly used in die casting alloy, battery industry, printing and dyeing industry, medicine, rubber industry, chemical industry, zinc and other metal alloys in electroplating, spraying and other industries have been widely used.
The main application
Zinc has excellent atmospheric corrosion resistance, so it is mainly used for surface coating of steel and steel structural parts (such as galvanized sheet), widely used in automobile, construction, shipbuilding, light industry and other industries. In recent years western country begins to try to do housetop to cover material with zinc alloy plate directly, its use fixed number of year can be as long as 120-140 years, and can recycle reuse, and the service life that makes housetop material with galvanized iron plate is 5-10 years commonly.
(2) Manufacturing copper alloy materials (such as brass)
Used in automobile manufacturing and machinery industry. Zinc has suitable mechanical properties. The strength and hardness of zinc itself are not high, but after the addition of aluminum, copper and other alloying elements, the strength and hardness are greatly improved, especially the appearance of zn-Cu-ti alloy, its comprehensive mechanical properties have approached or reached the level of aluminum alloy, brass, gray cast iron, its creep resistance is also greatly improved. Therefore, zinc-cu-ti alloy has been widely used in hardware production.
(3) used for casting zinc alloys
Mainly for die casting, used in automobile, light industry and other industries. The processing performance of many zinc alloys is relatively good, the processing rate can reach 60%-80%. Excellent medium pressure performance, can be deep drawing, and has self-lubrication, prolong the life of the mold, can be brazed or resistance welding or arc welding (need to be in helium) for welding, the surface can be electroplating, paint treatment, good cutting performance. It has superior superplastic energy under certain conditions.
In addition, zinc has good resistance to electromagnetic field. The conductivity of the zinc is 29% of the standard electrical copper, in the case of radio frequency interference, zinc plate is a very effective shielding material, at the same time because of the zinc is magnetic, suitable materials for instrument parts and instrument shell and coin, in the meantime, zinc itself and collisions with other metals not happen spark, for mine explosion-proof equipment.
(4) for the manufacture of zinc oxide, about 11%
Widely used in rubber, coating, enamel, medicine, printing, fiber and other industries.
(5) For the manufacture of dry batteries, in the form of zinc cake, zinc plate, about 13%.
Zinc has suitable chemical properties. Zinc can react with NH4CI and release H+ positive ions. Zinc-manganese dioxide battery is the use of this characteristic of zinc, zinc alloy as the shell of the battery, not only the battery electrolyte container, but also participate in the battery reaction constitute the anode of the battery. Its performance is also widely used in the pharmaceutical industry.