(GI)Hot dipped Galvanized steel sheet/coils/strips for ceiling

Specifications

1. The air anticorrosive property
2. Electrochemical protection performance
3. The weldability
4. Finishing sex

 

1. Galvanized according to coating way classification is divided into galvanized steel, electricity galvanized steel plates

 

 "Galvanized" and "cold galvanizing" distinction:

(1) Galvanized general zinc thicker, in about 10um above, anticorrosive skills. So is a kind of the usual galvanized process. But electricity galvanized very thin, about 3-5um, hot plating surface roughness, bright, serious has zinc plating is smooth, flowers, gray hair corrupt). (

Plating method of galvanized steel with good manufacturing processing performance. But, corrosion resistance coating is thinner than hot dip galvanized board. Cold galvanizing method is electricity galvanized, galvanized is very little, outer wall only galvanized (hot plating - and they were plating), only 10-50g/m2, the corrosion resistance itself is quite different from than galvanized pipes.

(2) Chemical general electric galvanizing more, applicable to small parts; Galvanized general used for power equipment and components, suitable for big components and equipment.

Electricity galvanized commonly known as cold galvanizing, is the way by electrochemical, used as an anode zinc ingots, zinc atom lost electronic became ion state dissolves in electrolyte, and steel band as the cathode, zinc ion in steel take get electronic reductive into zinc atom deposition to steel belt surface, form coating.

Galvanized steel is first the acid, in order to remove the surface of steel, pickling, ferric oxide chloride or zinc aqueous or by mixing with zinc chloride solution cleaning trough of hot dip plating, and then sent into slot.

2.According to zinc spend classification: divided into big zinc flower (generally), small zinc flowers (fine zinc flowers), no zinc flowers (zero)

 

♥A sacrificial zinc spend galvanized sheet

Add in liquid zinc zinc flowers, zinc layer to promote elements formed during solidification no zinc flowers, grain size is very fine, is bright and clean level off, so that no zinc flower products. The corrosion resistant performance is superior, coating performance is better.

♥A big zinc spend galvanized sheet

Add in the liquid zinc zinc coating, consequently flowers promote elements during solidification formed a beautiful zinc flowers. In the use of initial appearance performance is better, but the coarse grains exist subtle uneven.

♥A small zinc spend galvanized sheet

Small zinc flower products and no strict definition, general just will flower small some products zinc zinc call little flower products. Small zinc flower product is the same big zinc flower products, in order to overcome big zinc ingredients product coating performance bad flowers used when defect cooling ways to curb zinc flowers grow up, best form very small diameters zinc flowers. Because it is neither like big zinc flower smooth surface with the surface of the mirror, and don't like no zinc flower products that is unpolished, so coating performance is very good.