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Equipment Integration

Vertical continuous annealing furnace

Process flows:

Uncoiler – pinch leveler – cutting – welder – entry looper – cleaning section (Hot alkali soak cleaning, alkali brushing, electrolytic cleaning, brushing, rinsing, drying)- Vertical annealing furnace(preheating, heating, soaking, slow cooling, quick cooling, over-aging, final cooling, water quenching system)- skinpass mill – exit looper – inspection – coiling.

 

The annealing treatment of cold-rolled coils functions for eliminating the work hardening, improving mechanical properties in order to produce high added-value products used for construction, home appliances, and automotive panels.

 

Varieties and applications:

The steel quality includes CQ, DQ, DDQ, EDDQ, SEDDQ and HSS

The sheets produced from continuous annealing line are widely used in the construction, home appliances, and automobile industry.

 

Reference list of vertical annealing furnace

No.

Line 

Client

Startup

Function and type

Strip size (thk x width)

Product variety

Annual output

t/a

Max. speed

mpm

Remarks

1

2030CAPL

Baosteel

1988

Recrystallization annealing, cooling and overaging

0.5-2.0mm×900-1400mm

CQ、DQ、DDQ、HSS

561400

250

The key equipment of the line is imported, WISDRI works as designer of local part.

2

1400CAL

Baosteel

2000

CAL of automobile sheet, roller cooling and overaging

0.3-1.6mm×700-1400mm

CQ、DQ、DDQ、EDDQ、UEDDQ、HSS

717500

420

The key equipment is imported, WISDRI works as designer of local part.

3

CAL

BX steel

2006

CAL of automobile sheet, roller cooling and overaging

0.3-2.5mm×800-1870mm

CQ、DQ、DDQ、EDDQ、SEDDQ、HSS

900000

450

The key technology is imported, WISDRI works as designer of local part.

4

    CAL

WISCO

2006

CAL of automobile sheet, roller cooling and overaging

0.3-2.5mm×900-2080mm

CQ、DQ、DDQ、EDDQ、SEDDQ、HSS

990000

450

The key technology is imported, WISDRI works as designer of local part.

5

CAL

Masteel

2007

CAL of automobile sheet, flash-cooling, overaging

0.25-2.5mm×900-2000mm

CQ、DQ、DDQ、EDDQ、SEDDQ、HSS

936800

420

The key technology is imported, WISDRI works as designer of local part.

6

1800CAL

Baosteel

2005

Recrystallization annealing

0.45-2.0mm×800-1850mm

CQ、DQ、DDQ、EDDQ、SEDDQ、HSS

940500

485

The key technology is imported, WISDRI works as designer of local part.

7

CAL in No.5 cold rolling mill plant

Baosteel

2008

Recrystallization annealing

0.3-2.3mm×700-1630mm

CQ、DQ、DDQ、EDDQ、SEDDQ、HSS

729000

420

The key technology is imported, WISDRI works as designer of local part.

8

CAPL in 1420 mm cold rolling mill plant

Baosteel

1998

CAL for tinning plate, “R-Oa” technology

0.18-0.55mm×730-1230mm

T-2.5_T5

429650

880

The key equipment of the line is imported, WISDRI is responsible for plant design and part of equipment design

9

CAPL revamping in 2030 cold rolling mill plant

Baosteel

2002

Recrystallization annealing, cooling and overaging

0.5-2.0mm×900-1400mm

CQ、DQ、DDQ、HSS

561400

250

The key technology is imported, WISDRI works as designer of local part.

10

CAPL revamping

Baosteel

1998

Revamping to CAL for automobile sheet (stage 1, furnace liner lightened)

0.5-2.0mm×900-1400mm

CQ、DQ、DDQ、HSS

561400

250

WISDRI is responsible for overall technology and the equipment revamped by Baosteel

11

CAL

Shougang

2008

CAL of automobile sheet, flash-cooling, overaging

0.3-2.5mm×800-1870mm

CQ、DQ、DDQ、EDDQ、SEDDQ、HSS

900000

420(450)

EPC by WISDRI for local part