TLPPL 120 HIGH TEMPERATURE TUBULAR FURNACE

Specially designed for specific applications heated by Molybdenum di- silicide rods where maximum continuous operating temperature will not exceed 1500 / 1600 /1700°C

Technico moly furnace is double walled rectangular in shape with an inner working chamber made of SINTERED ALUMINA heated by imported MOLYBDENUM DI SILICIDE rods. The temperature is controlled by microprocessor based programmable PID controller. The power to the heating elements controlled by Current limit feedback thyristor pack with auto/manual option with control & indication accuracy ± 2/3°C

The outer chamber is fabricated out of thick C.R.C.A sheets & as air cooling facility to circulate air by a cooling fan to have a cool exterior to make the skin temperature is maintained around 60/70°C

The working inner chamber is a Tubular sintered alumina tube for required ID & Length. The furnace chamber will be lined with Imported CERAMIC BOARDS of 1700°C. This will follow by a layer of vacuum forming ZIRCONIA BOARDS of 1500°C. Low mass high grade thermal insulation will be provided to ensure consistent resulting in effective heating & cooling of the furnace & to keep the surface temperature within permissible limits

The temperature inside the chamber is indicated & controlled by smart range digital PID programmable controller which will have auto/manual control features & other standard control systems. The controller work in conjunction with B type thermocouple & thyristor power controlled device.

Due to this arrangement of current limit feedback arrangement, the control system is protected from higher current/voltage. The heating element initially has a lower ohmic value. When we set the required amperage in the control system there will be a larger current drawn. Without the current limit option, the higher voltage will damage the system electronics. Hence, we are providing the advantage of the special thyristor.

OPTIONAL GAS PURGING FITTINGS

The furnace will be provided with gas purging end fittings with water cooling arrangement.(Cool water supply not in our scope ). The fittings will have double Silicon / Viton ‘O’ rings with suitable inlets and outlets for gas with a flow meter and flash back arrester. Suitable for nitrogen and argongas.

A compact control panel accommodating the following will be provided along with the furnace.

•  Microprocessor based programmable PID controller (Make: Honeywell or Shinko or Eurotherm) 
•  Pilot indicating lights 
•  HRC fuse unit (L&T) 
•  Thyristor power control device 
•  Voltmeter (AE) 
•  Ammeter (AE) 
•  Circuit breaker (Make: SIEMENS) 
•  Main isolating switch 
•  Step down transformer (of reputed make) 
•  Safety controller (Make: Honeywell or Autonics)