Galvanizing also known as hot dip zinc and hot dip galvanized: is an effective way of metal corrosion, mainly used in various sectors of the metal structure facilities. Is the rust after the steel immersed in about 500 ℃ melting zinc solution, so that the steel surface attached to the zinc layer, which play the purpose of corrosion. Usually, the thickness of the galvanized layer is 5 to 15 m, and the hot-dip galvanizing layer is generally 35 m or more, even up to 200 m. Hot galvanized coverage is good, the coating is dense, no organic inclusions. It is well known that the mechanism of anti-atmospheric corrosion of zinc has mechanical protection and electrochemical protection. Under the atmospheric corrosion conditions, ZnO, Zn (OH) 2 and basic zinc carbonate protective film on the surface of zinc layer can reduce the corrosion of zinc to a certain extent. Layer protective film (also known as white rust) is damaged and will form a new film. When the zinc layer is seriously damaged, threatening the iron matrix, zinc on the substrate to produce electrochemical protection, the standard potential of zinc -0.76V, iron standard potential -0.44V, zinc and iron to form a micro-battery zinc as the anode is dissolved, iron As the cathode is protected. It is clear that the hot-dip galvanizing is superior to galvanized to the atmospheric corrosion resistance of the matrix metal iron.
Welcome to visit our website and send us emails , inquirys and we will give you the response within 24hours. Please feel free to do that, we will give you best service and offer you lower price.
1. Good after-sales service. Any small problem happening will be solved at the most prompt time;
2. Many years of export experience;
3. Specifications list is available upon your request;
4. Welcome to send enquiry, we will reply soon;
5. Prompt shipment with professional documents;
6. Custom packing, with photo before shipment;
7. High quality and competitive price.
HANDAN QIANBANG FASTENERS MANUFACTURING CO.,LTD is located in China’s largest fasteners production base--- Yongnian fasteners centre. Our factory was founded in 1991.We have
several sets of advanced equipments, adopt advanced modern management and use high quality steel to produce high quality products. The products sold throughout the domestic and exported to Southeast Asia and Europe and other countries and regions. Our products win good reputation with domestic and foreign customers.
Our factory mainly produces: all kinds of flat washers, spring washers, expansion screws, hex nuts, flange nuts, hex bolts, flange bolts, sleeve anchor, fundation bolts, and thread robs with DIN, BSW, ANIS,.And we also provide the OEM, Meanwhile, we are manufacturing factory, so we can give you the best quality and the good price.
HEBEI YUETONG FASTENERS MANUFACTURING CO.,LTD
Contact Person: Gina