Heat Treatment Furnaces

Applications

• Annealing
• Normalising
• Hardening
• Solution Treatment Heating
• Forge Heating
• Tempering 
• Aluminium Solutionising 
• Stress Relieving
• Ductile Iron Full Annealing
• ADI (Austempered Ductile Iron).

Auto cycle control

• Ramp, Soak, Cool .... 8 Steps Profile
• 10, 20 Profile Memory
• Multi Input Multi Output (MIMO)
• PID Controlling Action.
• PLC Based programmable controller.
• One burner, one thermocouple forms one pair as zone, thus multi zone control
• Digital display for time temperature graph online with USB pen drive for data storage, Wired LAN PC connectivity for real time graph printing
• Complete Report generation by data logging & Processing (SCADA).

Firing

• High Velocity Short Flame Burner.
• Direct On/Off pulse firing effect.
• Smokeless perfect combustion.

Uniformity

• Calibrated to API, AMS, CQ9, STM, ASME, NORSOK
• National Traceability (NABL)

The furnaces are calibrated for uniformity as per API 6A Standard (The Temperature Difference Between Highest & Lowest Points at Stabilised Conditions should not be more than 13ºC.)

Mechanization

• Trolley - movement by geared motor with brake.
• Door - movement by geared motor with brake, counter weighed,
• Door Lock Unlock - innovative, pneumatically operated instant latching unlatching for perfect sealing.

Construction

• Strong rigid construction.
• Heat resistant grade CI castings at door and frame, bogie and furnace interface eliminates warpage.
• Railway rails for load bearing under temperature.
• Triple sealing minimising heat losses.

Insulation

• High temperature high density ceramic fibre Monolithic Anchored lining.
• Self-supporting Monolithic Anchored Extended door lining.

Recuperator

• All fuel fired furnaces are equipped with Recuperator to recover the heat from flue gases by preheating combustion air. By thumb rule a rise of 1500 C in combustion air 7.5% heat is recovered.

PLC control

• Large furnaces handle high value materials; it is essential to install PLC for operation to avoid manual errors.
• PLC checks each & every operation prior to loading of materials called booting to ensure air/gas/power etc. are within the specifications & all the sensors are in working condition
• PLC monitors each & every operation during auto cycle for supply conditions, flue temperatures burner operations any deviation is automatically notified audio visually & through SCADA.
• PLC keeps event history for the record.

Control Panel

• Aesthetically powder coated control panel.
• Electrical switch gears for drives, burners.
• Status indication and control.
• Burner sequence controller and flame failure device.
• Programmable start-up, burner, temperature controlling system.