Zinc has excellent atmospheric corrosion resistance, so is mainly used in steel and the surface of the steel structure coating (such as galvanized sheet), widely used in automotive, construction, shipbuilding, light industry and other industries.In recent years, western countries began to try to do with zinc alloy plate roof cover material directly, its use fixed number of year up to 120-140, and can be recycled, and make the service life of the roofing material with galvanized iron generally for 5 to 10 years.
(2) made of copper alloy material (such as brass)
Used in automobile manufacturing and machinery industry.Zinc has applied mechanical performance.Strength and hardness of the zinc itself is not high, but after joining the alloy element such as aluminum, copper, its strength and hardness are greatly improved, especially the appearance of zinc and copper titanium alloy, the comprehensive mechanical properties has been close to or reach the level of the aluminum alloy, brass, gray cast iron, the creep performance is greatly improved.Therefore, zinc copper titanium alloy has been widely used in hardware production.
(3) used for casting zinc alloy
Mainly used for die casting for automobile, light industry and other industries.Many of the zinc alloy processing performance is good, including a working rate can reach 60% 80%.Medium voltage superior performance, in the deep drawing can be, and have self lubrication, prolong the life of the mold, can use brazing or resistance welding and arc welding (must) in helium gas welding, surface electroplating, paint processing, can be good machinability.Under certain conditions has excellent superplasticity can.
In addition, the zinc has good resistance to electromagnetic field performance.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) used in the manufacture of zinc oxide, accounts for about 11%
Widely used in rubber, coating, enamel, medicine, printing, fiber and other industries.
(5) used in the manufacture of dry cell, in the form of zinc, zinc plate, accounts for about 13%.
Zinc has the suitable chemical performance.Zinc can with NH4CI, release H + ions.Zinc - manganese dioxide battery is using the characteristics of zinc, made battery shell, zinc alloy is not only the container battery electrolytes, and constitute a battery anode for battery reaction.The performance of it has been widely used in the pharmaceutical industry.