we can provide hot dip galvanizing line and hot dip galvanizing aluminium-zinc line.Using american-steel-union process.
continuous hot dip galvanizing line
The line is designed as so-called American Steel Union processing.Cold steel strip become to galvanized coil treated by a series procedure.Including suface clean by electrolytic degreasing and drying ,annealing y full radiation tube heating furnace,galvanized/galvanume in the zinc pot in the sealed atmosphere,blowed by air knife and cooling ,and the Skin Pass Mill,Tension leveler,passivity /antifinger treatment,oil coat.
1.Cold Rolled Strip Continuous Galvanizing Line
main features of the hot dip continuous galvanizing line:
1)Raw material strip:cold rolled low carbon iron SPCC, SPCD, FH;
2)width:600-1550mm
3)strip thickness:0.2-1.2 (1.5)mm
4)Coating layer:GI,GA,GF
5)coating weight:60-300g/m2
6)Product quality:accords with GB/T 2518-2004
7)Line speed:entry section 0-240mpm; process section 0-180mpm; exit 0-240mpm
8)Annum output :100,000-300,000tpy
9)Energy saving style:heat recovery of flue gas
10)Continuous annealing furnace:Radiant tubes heating, vertical or horizontal
11)Fuel type:natural gas, liquefied petroleum gas, mixed gas, coke oven gas, and electricity
12)Welding machine:narrow lap seam welder
13)Degreasing style:chemical degreasing+ electrolytic degreasing+ three stages water rinsing, vertical or horizontal
14)Zinc pot type:ceramic induction zinc pot
15)Skin pass mill:four-roll wet, max. roll force 4000KN
16)Tension Leveler: two bend units, one straighten unit
17)Passivation/anti-fingerprintroll coating style
18)Oiling style:electrostatic oiling
19)Electric system:PLC, AC frequency conversion control system
20)Automatic instrument;PLC, intelligent auto control system
2.Hot Rolled Strip Continuous Galvanizing line
main feature of hot dip galvanizing line:
1)Raw material:Acid cleaned hot rolled low carbon iron coil, with no or little oil.
2)strip width: 600-1550 mm,
3)strip thickness: 1.5-4.0 mm
4)Coating layer:GI, GA, GF;
5)coating weight: 60-300 g/m2
6)Product quality:accords with GB/T 2518-2004
7)Line speed:entry section 0-130mpm; process section 0-100mpm; exit 0-130mpm
8)Annual output:200,000 -300,000 tpy
9)Energy saving style:heat recovery of flue gas, SUNNY patent
10)Continuous annealing furnace:NO oxidation furnace (NOF) + Radiant tubes (RTF), horizontal
11)Fuel type:natural gas, liquefied petroleum gas, mixed gas, coke oven gas
12)Welding machine;double rolling lap seam welder
13)Degreasing style:chemical degreasing+ electrolytic degreasing+ three stages water rinsing, horizontal (can be omitted)
14)Zinc pot type:ceramic induction zinc pot
15)Skin pass mill:four-roll wet, max. roll force 6000KN
16)Tension Leveler:two bend units, one straighten unit
17)Passivation/anti-finger:printroll coating style
18)Oiling style:electrostatic oiling
19)Electric system;PLC, AC frequency conversion control system
20)Automatic instrument:PLC, intelligent auto control system
