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Job Application
HIGH TEMP. PCE FURNACE - 1700°C-DIGITAL
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FURNACE STRUCTURE |
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Outside Shell size |
≈ 850 (W) x 550(h) x 650(d) mm |
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Useful volume |
200mm (H) x 200mm (W) X 300 MM (D) |
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Entrance size |
150 x 150mm |
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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 |
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Skin Temperature |
Double wall structure & special air circulating fan will be provided to maintain the skin temperatures just above ambient |
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Door Construction |
Sophisticated system to avoid heat loss made by Stainless steel door with proper insulation |
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Panel box |
Control panel box with a door coupled with furnace |
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Facing Insulation |
Vacuum formed alumina board from zircar, USA |
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Backup insulation |
Vacuum formed alumina board from MMTCL |
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HEATING SYSTEM |
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Heating elements |
Element- Molybdenum di silicide rods |
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Source :I SQUIRRED R , USA make |
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Shape - U-shape |
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Size - 6/12 |
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Hot zone (Le) - 125mm |
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Cold zone (Lu)- 225mm |
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Total number- 6 numbers |
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Electrical connections - At the top of the furnace |
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Operation |
415 / 2phase / 20 A |
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with power isolation transformer |
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Power |
A. EACH ELEMENT WITH STAND THE POWER OF ≈1.14kW and TOTAL LOADS FOR THE ELEMENTS – ≈7.0KW |
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Calculated and required power |
4kW |
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Maximum Temperature |
1800 ºC |
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Continuos opération |
1700 ºC |
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Rate of heating |
Rapid heating 1to 10 deg/minute |
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Temperature Uniformity |
Each three Heating elements are placed both the sides to get the temperature uniformity |
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Temperature Stability |
1 deg C |
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Skin Temperature |
not exceeding 60 deg C |
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VIEW PORT |
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VIEW PORT |
Available |
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Size |
50mm dia with ration shielded glass |
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CONTROL SYSTEM. |
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Control panel |
Separate control panel is available |
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Temperature Control |
Eurotherm 2416 PID (16 segments) microprocessor based Digital Temperature programmable controller cum indicator |
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Temperature sensor |
Pt+Rh30%/Pt+Rh6% – B type thermocouple with Recrystalised alumina sheath) |
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number of temperature sensor |
One |
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Accuracy |
±1⁰C |
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Power Controller |
Phase angle-controlled Thyristor drive with current feed back |
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Thyristor |
Phase angle-controlled thyristor drive with current feedback and 400 Amps Peak current |
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Transformer |
Reputed make suitable transformer with air cooled with H class insulation |
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Indications |
a) Digital Ammeters |
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b) Mains Indicator |
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c) Output Indicator |
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Control switches |
Mains on/off, out put on/off |
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Safety |
Input, output fuses |
