CONTINUOUS GALVANIZING LINE (CGL 1 ) CMI - Belgium, Danieli - Italy , Stein Hurtey- France, Taylor Winfield - USA, Ajax-Englang, Ansaldo-France
In CGL 1 line, the steel strip passes continuously through some chemical baths as degreasing unit, pickling-rinsing for the surface preparation and is heat treated in annealing furnaces then coolled to the same temperature as zinc and then dipped into the zinc pot.After the zinc coating, skinpass, chromating, oiling, ink jet printing can be applied to the galvanized steel strip, according to customer requirements.
Continuous Galvanizing Line ;
Production capacity	430,000 ton/an.
Thickness range	0.25 - 2.00 mm.
Width range	600-1530 mm.
Coating thickness (double side)	50 - 350 gr/m²
Equipments of this line are	Entry thickness gauge ( gamma ray ) : Measure the thickness of the strip Welder : Used to weld the strip in order to provide continouty. Degreasing : Remove the iron particles and rolling oil from the strip Furnace : To anneal the strip according to mechanical properties requirements Zinc coating pot : To coat the strip with zinc (Induction heating ceramic pot ) Air jet wiping : To adjust precisely the coating thickness Coating gauge ( X-ray ): Coating thickness is measured along the width and length of the coil Skinpass mill : To improve the yield point and give roughness to the strip Tension leveller : To obtain better flatness Chromating : To passivate the strip surface Automatic surface inspection system : To monitor the surface defects automatically Side trimmer : Trims the edges to provide required width. Ink jet printer : Print the customer requirements on the strip Inspection room : To inspect both side of the strip Total thickness gauge ( Gamma ray ) : To measure the thickness of the strip with coating Elektrostatic oiler : To oil the strip for protection