AS 9001, ISO 14001:2004 NADCAP certified. Manufacturer of zinc and manganese coatings. Fine grained, standard and course crystalline. Rack and barrel processing and complete testing service Specs. include MIL DTL 16232, TT C 490 and most others for automotive, aerospace, military and nuclear applications.
Zinc Processing. Zinc is the fourth most widely used metal, following iron, aluminum and copper. It is mined mostly in Canada, the former USSR, Australia, Peru, Mexico and the US. The US is the worlds largest consumer of zinc.
Protech is a woman owned full service metal finishing company that has served customers since 1980. Protech is housed in a 32,000 square foot facility on 10 acres in Vonore, Tennessee. Specializing in anodizing and rack plating.
Belgian type horizontal retorts were operated in Britain as the main zinc producing process for about 100 years starting in the mid 19th century. The daily output of each retort was about 40 kilograms , and several hundred retorts were banked together and fired by gas.
companies is slab zinc, which is produced in 5 grades: special high grade, high grade, intermediate, brass special, and prime western. The 4 U. S. primary smelters also produce sulfuric acid as a
Characteristics Physical properties. Zinc is a bluish white, lustrous, diamagnetic metal, though most common commercial grades of the metal have a dull finish. It is somewhat less dense than iron and has a hexagonal crystal structure, with a distorted form of hexagonal close packing, in which each atom has six nearest neighbors in its own plane and six others at a greater ...