2021-7-24 10:05| 发布者: steelfu4mo| 查看: 484| 评论: 0 |原作者: 佛山万庆物资
Hebei zhao Ji'an home appliance with galvanized sheet and aluminum plated galvanized sheet have what difference?
Compared with galvanized alloy, galvanized layer is relatively active, so the corrosion prevention ability is quite different.Testing under the same outdoor conditions shows that the service life of aluminum ized galvanized plate is more than four times that of galvanized plate.
The difference between galvanized plate and aluminum galvanized plate mainly lies in the difference of coating layer, the surface of galvanized plate is evenly distributed with a layer of zinc material, playing a role of anode protection of the mother material, that is to say, the alternative corrosion of zinc material protects the use of the base material, only when all the zinc corrosion can harm the base material inside.
The surface coating of galvanized sheet is made of 55% aluminum, Of 43.5% zinc and a small number of other elements, The microscopic aluminum-plated zinc coating surface is a honeycomb structure, The "hive" made of aluminum contains zinc, under these circumstances, Although the galvanized zinc coating also plays an anodic protection role, But on the one hand, due to the reduction of zinc content on the other hand, because the zinc material is not easy to electrolysis by aluminum, the effect of anode protection is greatly reduced, Thus, once the aluminum-plated galvanized plate is cut through, Soon to rust after the loss of basic protection of the cut edge, So the galvanized aluminum plate should be cut as little as possible, Once cutting, protect rust proof paint or zinc rich paint, Can make the service life of the plate is extended.
Galvanized plate, mainly used in: construction industry, light industry, agriculture, animal husbandry and fishery, business
Aluminium-plated zinc plate, mainly used in: automobile, home appliances
二、the material is different
Galvanized sheet: it is to coat steel sheet with a layer of metal zinc to prevent corrosion of steel sheet and prolong its service life.
Aluminium galvanized steel plate: the surface is unique smooth, flat and gorgeous star flower, the base color is silver white.Its surface coating is made of 55% aluminum, 43.4% zinc and 1.6% silicon.