2023-1-9 14:05| 發(fā)布者: steelfu4mo| 查看: 1483| 評論: 0 |原作者: 佛山萬慶物資
鍍鋅板按板面分類:有鋅花鍍鋅板和無鋅花鍍鋅板。
Galvanized plate according to plate surface: galvanized plate and galvanized galvanized plate.
鍍鋅板按鋅層分類有:80G鋅, 100G鋅,120G鋅,180G鋅,275G鋅。
Galvanized plates are classified by zinc layer: 80G zinc, 100G zinc, 120G zinc, 180G zinc, 275G zinc.
鍍鋅層是用電鍍、熱浸或噴鋅的方法在基體金屬表面形成的鋅覆層。主要用于防止鋼鐵在大氣中腐蝕。因鋅相對于鋼為賤金屬,可作為犧牲陽極而對基體起到陰極保護作用。其保護能力取決于實施方法、膜層厚度及使用環(huán)境。為提高其保護能力,常配有封閉層或其他非金屬面層。鋅為兩性金屬,對酸、堿均具敏感性,鍍鋅層的金屬應控制在中性或弱堿性環(huán)境中使用。
Galvanizing layer is a zinc cladding formed on the surface of a matrix metal by plating, hot dip or zinc spray. It is mainly used to prevent steel from corrosion in the atmosphere. Because zinc is a base metal relative to steel, it can be used as a sacrificial anode to protect the substrate by the cathode. Its protection ability depends on the implementation method, the membrane layer thickness and the use environment. To improve its protection ability, often equipped with closed layer or other non-metallic surface layer. Zinc is an amphotropic metal, sensitive to acid and alkali. Galized metal should be used in neutral or weak alkaline environment.
在我們的生活中,在很多的地方都可以看到鍍鋅鋼板,那么為什么要采用鍍鋅鋼板呢?
鍍鋅層的主要作用是隔離空氣與主體的直接接觸,降低氧化的速度。對于金屬材質的材料來說如果材質選用不當,那么就會很快生銹,熱鍍鋅鋼板的基材是經(jīng)過熱鍍鋅的處理,因為熱鍍鋅的鋅層就是防銹的基本來源。
The main effect of the galvanizing layer is to isolate the direct contact between the air and the main body, and to reduce the rate of oxidation. For metal material, if the material is not properly selected properly, then it will soon rust, the substrate of hot galvanized steel plate is hot galvanized treatment, because the hot galvanized zinc layer is the basic source of rust prevention.
熱鍍鋅層是使熔融金屬與鐵基體反應而產生合金層,從而使基體和鍍層二者相結合。熱鍍鋅具有鍍層均勻,附著力強,使用壽命長等優(yōu)點。
Hot-dip galvanizing layer is to make the molten metal and iron matrix reaction and produce an alloy layer, so that the substrate and the coating layer are combined. Hot-dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.
而高強度鍍鋅和普通鍍鋅主要是基板有差別,高強度的抗拉強度和屈服強度都要達到500以上,高強度鍍鋅可以作為沖壓件。
And high strength galvanizing and ordinary galvanizing is mainly the substrate difference, high strength tensile strength and yield strength should reach more than 500, high strength galvanizing can be used as stamping parts.
國內普遍的是80G鋅層鍍鋅,材質是SGCC或DX51D
Domestic common is 80G zinc layer galvanized, the material is SGCC or DX51D
高鋅層主要用于室外防腐蝕比較高的產品或室內環(huán)境濕度比較高的產品以及產品要求防腐蝕比較高的產品。低鋅層主要用于室內管道以及民用,對防生銹不太注重的環(huán)節(jié)。
High zinc layer is mainly used for products with high outdoor corrosion prevention or products with high indoor environmental humidity and products with high outdoor corrosion prevention requirements. Low zinc layer is mainly used for indoor pipeline and civil use, to prevent rust does not pay much attention to the link.
高強鍍鋅就是結構剛鍍鋅板,高強鍍鋅有強度要求一般屈服強度都在320左右或者遠超這個數(shù)值,普通鍍鋅板卷屈服強度是沒有高強鍍鋅大,普通的51D,抗拉強度是270-550,越往上52 53 54 56D牌號越高,越軟。
High strength galvanizing is the structure of just galvanized plate, high strength galvanizing strength requirements general yield strength is about 320 or far more than this value, ordinary galvanized not galvanized strength galvanizing, ordinary 51D, tensile strength is 270-550, the higher the 52 53 54 56D brand the higher, the softer.