Project Name: 0.8—2.0×450mm Continuous Galvanizing Production Line  

Client Name: Hebei Yongqing Tongda Metal Products Co., Ltd.  

Project Nature: New Construction Project  

Undertaking Method: General Contracting by Jingjie Ruisi  

Signing Date: June 9, 2014  

Commissioning Status: Commissioned on Schedule  

Operation Status: Good  

I. Basic Parameters:  

1. Product Specifications  

Steel Grade: Ordinary Carbon Structural Steel  

Material: Q235, Q195, Q215, 08AL  

Steel Coil: Inner Diameter Φ508mm, Outer Diameter Φ800-1650mm  

Coil Weight: Max 6000Kg  

Strip Dimensions: Thickness 0.8-2.0mm, Width 250-450mm  

2. Raw Material Specifications  

Material: Q235, Q195, Q215, 08AL  

Thickness 0.8-2.0mm, Maximum Width 450mm  

Coil Weight: Max 6000Kg  

Steel Coil: Inner Diameter Φ508mm, Outer Diameter Φ800-1650mm  

3. Production Line Process Parameters  

Process Speed: 45-112.5m/min, TV value is 90  

Looper Filling Speed: 130% of the process speed  

Power Configuration of Transmission System: AC variable frequency speed regulation  

Zinc Coating Thickness Adjustment Range: 40-200g/㎡ (double-sided) adjusted by air knife  

Zinc Coating Status: Regular spangle, small spangle, spangle-free  

Passivation Method: Dip coating passivation  

Product Quality Standard: GB/T2518-2008  

Production Line Direction: From left to right (viewed from the operation side)  

II. Description of Process Flow and Equipment Functions  

The main equipment is arranged according to the process flow as follows:  

1#, 2# Feeding Car → 1#, 2# Uncoiler → 1#, 2# Uncoiling Knife → 1#, 2# Uncoiling Pinch Roll → Hydraulic Cross Cut Shear → Welding Platform → 1# Tension Machine → Entry Looper → 1#, 2# Single Roll Centering Machine → 2# Tension Machine → Tension Meter → Annealing Furnace → Furnace Nose → Zinc Pot → Sink Roll → Air Knife → Vertical Air Cooling → High Tower Deflector Roll → Horizontal Air Cooling → Quenching Tank → Quenching Squeezer → Double Roll Centering Machine (CPC) → 3# Tension Machine → Leveler → 4# Tension Machine → Dip Coating Passivation → Passivation Squeezer → Hot Air Drying → Exit Looper → (One Set of CPC Double Roll Centering) → 5# Tension Machine → Hydraulic Cross Cut Shear → Exit Pinch Roll → Coiler (EPC) → Discharging Car  

Continuous operation is realized through the electronic control system, hydraulic system, pneumatic system and auxiliary equipment.