Lead plate refers to rolled of lead from the metal plate. Generally gravity of 11.345g / cm3. At present, the common thickness of 1-20mm, common specifications for 1000 * 2000MM, the best domestic machines can be made the most wide-1300MM, up to 8000MM, use more # 1 electrolytic lead production, there are also made of recycled lead . Its quality slightly worse, and the price is a little difference.
History of Lead plate
Lead is one of the earliest human use of metal, 3,000 BC, humans smelting of lead from the ore. Lead and zinc in nature, particularly in primary deposit symbiotic extremely close. They have in common a source of minerals and very similar geochemical behavior, have similar outer electron structure, have a strong affinity to sulfur and form the same soluble complex. Ferromanganese cases they adsorbed mass, clay or organic matter is also very similar. The average content of lead in the earth's crust is about 15 × 10-6, the average zinc content in the crust is about 80 × 10-6.
At present, it has been found in the earth's crust are about 250 kinds of lead and zinc was about 1/3 of sulfides and sulfates, but only 17 kinds of currently available industrial use. Among them, the lead industrial minerals galena, boulangerite, jamesonite, bournonite, white lead, lead vanadium, chromium lead, pyromorphite, arsenic, lead, vanadium and lead, molybdenum lead ore; industrial minerals zinc sphalerite, wurtzite, calamine, hemimorphite, willemite, hydrozincite. Galena, sphalerite, lead and zinc smelting and other major industrial mineral raw materials.
Mainly for the manufacture of lead-acid batteries, the acid for industrial and metallurgical industry lead, lead pipes lined protective equipment, electrical industry lead used as cable sheathing and blown fuses. Containing tin, lead antimony alloy is used as the printing type, pewter for the manufacture of fusible lead electrode, and a lead-plated stereotype plates used in the construction industry. Lead on X-rays and γ-rays with good absorbency, widely used as a protective material X-ray machines and nuclear devices. Because lead poisoning and economic reasons, some areas have been or will lead been replaced by other materials.
Performance of Lead plate
Lead is a silvery white metal slight bit of light blue, with a high density (11.85g / cm3), good corrosion resistance, low melting point (300 ℃ -400 ℃ high temperature can melt welding), soft, easy processing and other features, So get in many industrial applications, stereotype and plumbing widely used sulfuric acid industry, batteries, cable sheathing and metallurgical industrial equipment from corrosion protection; lead can absorb radioactive rays can be used for atomic energy industry and x, r-ray equipment and medical protective material stereotype, referring rolled metal made of lead plates, the current domestic common thickness 1-10mm, more with 1 # electrolytic lead production. It can be used in many aspects of radiation protection, anti-corrosion, acid environment, construction, noise and so on. The factory can produce according to customer requirements 1.0--20 mm diameter, high-purity alloys 99.99 lead balls, lead beads, shot, lead sand, lead shot and lead ingots. Wide range of products for weight, filling, electrical conductor, sports equipment, radiation protection and so on.
Lead plate applications
Lead plate has many aspects of a strong anti-corrosion, acid and alkali, acid environment, construction, medical radiation, X-ray, CT room-ray protection, increase, noise and so on. General domestic production of lead purity of more than 99.99% of the national standard products, the density of 11.34g / cm3.