Project Name: 650mm Continuous Hot-Dip Galvanizing Production Line 2#
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 1.5-3.0mm, width 400mm
Process speed: 20-40m/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# feeding trolley → 1, 2# uncoiler → uncoiler 1, 2→ uncoiling clamping 1, 2 (2# uncoiling clamping with five-roller straightening) → hydraulic cross-cutting shear → welding platform → 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 trough→ extrusion and drying roller→ double roller centering (CPC) → tensioning machine 3→ tensioning machine→ dipping and passivation → hot air drying→ outlet loop → tensioner 4→ hydraulic cross-cutting shear→ winding and clamping (guide), → winding machine (EPC) → unloading trolley