Project Name: 100m/min strip color coating production line unit
Customer name: Bazhou Jinghua Metal Products Co., Ltd
Project nature: new construction
Undertaking method: Jingjie Ruisi general contracting
Signing time: November 16, 2010
Production: Under construction
Operation: Good
1. Basic parameters of the unit
1. Material: galvanized steel plate, aluminum-zinc sheet coil (including FH, yield strength <600MPa)
2. Steel coil weight: Max25t/roll
3. Finished product quality: Max10t/roll
4. Outer diameter of steel coil: raw material?1200-2100mm
Finished product? 508-1250mm
5. Inner diameter of raw steel coil: ?508/ ?610mm
Inner diameter of finished steel coil: ?508/ ?610mm
6. Steel plate thickness: 0.2-0.8mm
7. Steel plate width: 800-1250mm
8. Production line design process speed: 100m/min (transmission speed Max120m/min)
9. Energy: water, electricity, natural gas
10. Roller coating process: two coatings and two drying on the front and back sides continuously
11. The linear speed before the inlet loop and after the outlet loop is 15-150m/min
12. Color board coating thickness: the thickness of the dry film of the top coat can be adjusted between 8-15μm, and the thickness of the dry film of the primer can be adjusted between 5-12μm
13. Under the premise that the galvanized substrate complies with the national standard GB/T2518-2004 and the color plate coating thickness and paint indexes meet the national standards, the color plate coating quality index meets the relevant technical parameters in GB/T12754-2006
14. The width direction of the color plate roll is deviated from the deviation of the layer on one side≤± 1.0mm
15. Production program: 120,000 tons/year (calculated according to the steel plate specification of 1000mm x 0.4mm corresponding to the ****** process speed, 100 m/min, 300 working days/year)
16. Production line direction: from left to right from the operation side
2. Unit process
The main equipment is composed of manual feeding→ uncoiling unit I., II.→ Two-roller picking machine I.→Two-roller picking machine II.→ Qiqi shearing machine (two groups)→ Riveting machine→ Flattening roller→ tensioning machine I. (4 rollers) → inlet loop → double roller team mechanism I.→ tensioner II. (S roller) → pre-degreasing → roller brush machine I.→degreasing → roller brush machine II.→ water washing I.→ water washing II.→pure water washing→ hot air blowing device I.→chemical roller coating machine→ passivation drying oven→ forced air cooling device I.→ tensioning machine III.(S roller)→S roller centering mechanism→ primer roller coating machine→ primer leveling→ primer curing furnace→ forced air cooling device 2→ primer strong cold chamber (water cooling) S roller → S roller centering mechanism III.→ hot air blowing device 2→S roller tensioning machine IV (S roller). → Turning centering mechanism IV. (S roller) → topcoat roller coating machine 1.2→ topcoat leveling→ topcoat curing furnace→ forced air cooling device 3→ topcoat strong cold chamber (water-cooled) → S roller centering mechanism V.→ hot air blowing device 3→ tensioning machine V. (double S roller) → outlet loop → centering mechanism IV. (double roller) → cold laminating unit→ S roller tensioning machine IV. (S roller) → belt clamping and shearing machine III.→ two-roller clamping machine IV.→ servo winding unit → manual unloading (with belt reel aid) .The main equipment also includes electronic control system, hydraulic system, pneumatic system, auxiliary equipment and steel coil mobile trolley