The superfine zinc powder is gray rules for globular crystal shape structure, density of 7.14 g/cm3, melting point is 419 ℃, boiling point is 907 ℃. Insoluble in water, soluble in acid and alkali, ammonia, have very strong reducibility. Stable in dry air, the wet air easy to agglomerate, and generate the alkali carbonate and the cover on the particle surface. The average particle size is between 3 to 4 um.
Superfine zinc powder products as the key part of zinc-rich anticorrosive coatings raw materials, widely used in inappropriate hot plating and electroplating of large steel components (such as a large outdoor steel structure building, Marine engineering, Bridges, pipelines, etc.) and coated in shipping, container, etc. Except for zinc-rich anticorrosive coating, zinc powder products are also used in screws, nails, nail and other steel products of mechanical galvanizing production. In addition, zinc powder product is widely used in chemical industry (such as insurance powder, lithopone, carved white block, dye intermediates, etc.), metallurgy, medicine, pesticide and other industries.
No comments:
Post a Comment