Project Name: 900mm Continuous Hot-dip Galvanizing Production Line No.1  

Client Name: Tianjin Yurunde Metal Products Co., Ltd.  

Project Nature: New Construction Project  

Undertaking Method: General Contracting by Jingjie Ruisi  

Signing Date: November 30, 2007  

Commissioning Status: Commissioned on Schedule  

Operation Status: In Good Condition  

Basic Parameters of the Unit:  

Material: Cold-rolled steel coil  

Steel Grade: Q235, Q195, Q215, 08AL  

Raw Material Thickness: 1.5-3mm; Raw Material Width: Max 600mm  

Raw Material Inner Diameter: ∮610/∮508/∮420  

Raw Material Outer Diameter: ∮800-1650mm  

Raw Material Coil Weight: 8000 Kg  

Finished Product Inner Diameter: ∮508mm  

Finished Product Outer Diameter: ∮800-1650mm  

Finished Product Coil Weight: Max 8000 Kg  

Process Speed: 20~40m/min; Looper Filling Speed: 60m/min  

Zinc Coating Thickness Adjustment Range: 60~280g/㎡ (double-sided) adjusted by air knife  

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

Passivation Method: Dip coating passivation  

Product Quality Standard: GB2518-88  

Main Process Equipment Flow:  

1#, 2# Feeding Car → 1#, 2# Uncoiler → 1# Guide Roll → Hydraulic Cross Cut Shear → Seam Welder → 1# Tension S Roll → Entry Looper → 2# Tension S Roll → 1# Double Roll Centering (CPC) → Tension Adjusting Roll → Annealing Furnace (Import Furnace Throat → Regenerative Heating Furnace → Sealing Chamber → Radiant Tube Reduction Furnace → Slow Cooling Furnace → Quick Cooling Section → Furnace Nose) → Zinc Pot → Sink Roll → Air Knife → Cooling Tower → Quenching Squeegee Roll → 2# Double Roll Centering (CPC) → 3# Tension S Roll → Tension Leveler → 2# Guide Roll → Dip Coating Passivation → Hot Air Drying → Exit Looper → 4# Tension S Roll → Hydraulic Cross Cut Shear → 3# Guide Roll → Coiler (EPC) → Discharging Car