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TENOVA

SYSTEM DATA HEAT TREATMENT

.. Maximum temperature: 950 °C

Clear width: 2,200 mm
Useful width: 2,070 mm
Useful height: 400 mm
Working height: 1,300 mm
Infeed roller table: 14,700 mm
Infeed chamber: 2,500 mm
Annealing furnace: 29,169 mm
(Annealing furnace clear length) approx. 26,769 mm
Cooling section (HT and LT): 51,000 mm
Discharge chamber: 2,500 mm
Discharge roller table: 14,660 mm
Total length: 114,530 mm
System volume: XXX m³ (annealing furnace and cooling section)
N2 purge gas quantity: 420 m³
Furnace design: Roller hearth continuous furnace
Material to be processed: tubes
Outer diameter: 14 - 180 mm
Wall thickness: 0.8 – 8.0 mm
Length: 4.0 – 13.0 m
Surface before annealing: -

Throughput at 920 °C annealing temperature and full furnace utilization: 7,000 kg/h (without holding time)
Throughput at 700 °C annealing temperature and full furnace utilization: xxxxx kg/h (without holding time)
Reference tubes:
25 x 2.5 x 8,000 mm
33 x 3.5 x 8,000 mm
40 x 3.5 x 8,000 mm
55 x 2.8 x 8,000 mm
63 x 4 x 8,000 mm
75 x 6 x 8,000 mm
110 x 8 x 8,000 mm

Exit tube temperature, depending on tube surface: 125 – 150 °C
Roller pitch infeed roller table: 620 mm
Roller pitch infeed chamber: 620 mm
Roller pitch annealing furnace: approx. 430 mm
Roller pitch cooling section: 500 mm
Roller pitch discharge chamber: 620 mm
Roller pitch discharge roller table: 620 mm

Roller dimensions:
Annealing furnace: 155.4 x 14 mm 1.4848/1.4832
Front section HD cooling section: 157.0 x 10 mm 1.4826 (7 pcs)
Remaining cooling section: 133.0 x 4 mm St 37

Max. permissible roller hearth load at an operating temperature of 920 °C and uniform furnace loading: 350 kg/m

Furnace bottom:
Lightweight firebrick: 130 mm
Insulating bricks: 130 mm
Mineral fiber board: 50 mm

Side:
Lightweight firebricks: 230 mm
Mineral fiber board: 100 mm

Ceiling:
Suspended ceiling bricks and stuffing wool
Ceiling thickness: 330 mm
Ring stones for roller penetrations made of fiber material

Number of control zones: 6 (gas-heated)
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Operation of control zones:
- (gas-heated) ON/OFF with central control
- (electrically heated) ON/OFF with thyristor control

Thermocouples: NiCr-Ni
Temperature recording range: 0 – 1,000 °C
Temperature control range: 0 – 999 °C
Working temperature range: 450 – 950 °C
Maximum operating temperature: 950 °C
Conveying speed: 7.5 – 150 m/h

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