HIGH TEMP. PLC FURNACE - 1700°C-DIGITAL

PLC FURNACE -HIGH TEMP. - 1700°C-DIGITAL-200 X 200 X 250 MM

FURNACE STRUCTURE

1.  Out side shell size       :          »700(W) x 1500(H) x 900 (D) mm

2. Inside chamber volume   :   » (Height) 200 x (Width) 200 x (Depth)300

3.       Useful volume            :          » 200(W) x 200(H) x 300 (D) mm

4.        Model of the furnace   :          Front opening

5.        Door entrance size        :         200 x 200mm

6.        Expected load                :          20 to 50Kg

7.        Shell Construction          :          Double Wall High quality fabrication of M. S. Body and M. S. Angle’s structure with proper stiffeners and neat powder coat painting

8.        Insulation                        :    Total thickness - 200mm in all sides

                                                        Facing insulation – cumilac 32 brickes

                                                        Back up insulation – MMTCL – zirconia blend fibre

                                                        air circulation - 50mm between two metal

9.       Door     :     Single door made with Heat resistant Stainless steel with double wall construction, sophisticated model to avoid heat loss with heavy hinges for heavy duty operations with tightening arrangement

10.      Furnace stand   :    Furnace stand with sufficient height with heavy metal structure. The free space effectively utilized

for the control panel purpose.

11.      Skin Temperature   :  Double wall structure & special air circulating fan will be provided to maintain the skin temperatures just above ambient

HEATING SYSTEM

1. Heating elements                   :          

Element         - Molybdenum di silicide rods (Grade - 1800dec C)

Shape             - U-shape

Size                -  6/12

Hot zone        -   180mm

Cold zone       - 250mm

Total number -    8 numbers

2.    Operation    :   400V2/3 phase AC 50Hz/10 KW Max OR equivalent

3.        Power     :   A. EACH ELEMENT WITH STAND THE POWER OF »1.28kW and TOTAL LOADS FOR THE ELEMENTS –15»KW

4.        Maximum temperature    :  1800 deg C (At the element)

5.        Maximum temperature   :  1700 ºC (operating temperature)

6.        Continuous operation    :  1700°C –Continuous operation

7.        Rate of heating     :   Rapid heating 1to 10 deg/minute (however 5 deg /Min is optimum)

8.        Time to reach T’Max       :    5 hours

9.       Temperature uniformity    :    Heating elements are placed uniformly all the sides to get the temperature uniformity within ± 5°C after 30 min soak

CONTROL SYSTEM

1.        Control Panel   :   Bottom of the furnace will made as the control panel as well as to fix the transformer

2.        Temperature control   :    TAIE Make PID (144 segments and split into 4 programs) microprocessor based  Digital Temperature programmable controller cum indicator

3.       Temperature sensor   :   Pt+Rh30%/Pt+Rh6% – B type thermocouple with Recrystalised alumina sheath)

4       Number of temperature sensor:  One

5.      Accuracy     :     ±1°C

6.     Power Controller  :   Phase angle controlled Thyrister drive with current feed back

7.        Thyristor  :   Reputed brand with SEMIKRAON, Italy MAKE SCR      

8.       Transformer    :   Suitable Air cooled Transformer 

9.        Indications    :   a) Ammeters and Voltmeters

                                      b) Mains Indicator 

                                     c) Output Indicator

10.     Control switches   :   Mains on/off, out put on/off

11.     Safety      :   Input, out put fuses