Project Name: 650mm Continuous Hot-dip Galvanizing Production Line 1#
Customer name: Tianjin Qifeng Group
Project nature: new construction
Undertaking method: Jingjie Ruisi general contracting
Signing time: December 25, 2009
Production status: On time production
Operation: Good condition
Basic parameters:
Material: Q235, Q195, Q215, 08AL
Steel coil: inner diameter ∮ 508mm, outer diameter ∮ 800-1600mm
Roll weight: Max 5000 kg
Strip size: thickness 0.5-2.0mm, width 400mm
Process speed: 30~100m/min
Loop filling speed: 130% of the process speed
Transmission system power configuration: AC frequency conversion speed regulation
Zinc layer thickness adjustment range: 50~280g/㎡ (double-sided) air knife adjustment
Zinc layer state: normal zinc flower, small zinc flower, no zinc flower
Passivation method: dipping and passivation
Product quality standard: GB2518-88
The main equipment is arranged according to the process as follows:
1. 2# loading trolley →1, 2# uncoiler→ uncoiler 1, 2→ uncoiling clamping 1, 2→ Hydraulic cross-cutting shearing → seam welding machine → tensioner 1→ Inlet loop → tensioner 2→ Double roller centering (CPC) → runout roller →annealing furnace→ furnace nose→ zinc pot → sinking roller→ air knife → cooling fan→ cooling tower steering roller→ quenching sink→ extrusion roller→ double roller centering (CPC) → tensioning machine 3→ tensioning machine → dipping and passivation → hot air drying→ outlet loop → tensioner 4→ hydraulic cross-cutting shear → rewinding clamping (guide plate) → rewinding machine (EPC) → unloading trolley