TAV Diffusion Bonding Vacuum Furnace 48" x 42" x 96" Work Zone

TAV 2400 deg Diffusion Bonding Vacuum Furnace

48" x 42": x 96" Work Zone

2006, 2400 deg F max

a.   Dimensions

Work Zone   

Width     52”   

Height     40”   

Depth     102”   

Floorspace Requirements (see attached layout for more detail)   

Width     23’   

Height     18’   

Depth     30’   

b.   Charge

Max. Gross Charge     2,000 lbs.   

c.   Temperature

Max. Temperature     2400 °F   

Temperature Uniformity in Vacuum (>1,200 °F)    ± 25 °F   

   (recently surveyed by Furnacare technician with a fixture sized 52”x38”96”)   

d.   Vacuum & Partial Pressure

Ultimate Vacuum Level (clean, dry, empty furnace)     10-3 torr (range)   

Operating Vacuum     10-2 torr (range)   

Partial pressure (N2 or Ar)    0.1 – 10 torr   

Leak Rate (clean, dry, empty furnace)     10-3 torr l s-1   

e.   Gas

Cooling Gas     N2 or Ar    

Max. Quench Pressure    75 psi   

Max. Operating Pressure    <400 psi   

Quench Fan Power     110 kW   

Gas Consumption per Cycle (@ 75psi)     approx. 3,800 ft3   

Gas Purity     99.999 %   

f.   Power

 Heating Power     700 kW   

Pumping Group     approx. 38 kW   

Connected Load     800 kVA   

 Power Supply     480 V, 60 Hz, 3-Phase   

Panel Voltage     110 V, 60 Hz, 1-Phase   

Max. Admissible Voltage Fluctuation     ±5 %   

g.   Furnace Performance (empty furnace)

Pump Down Time to 10-2 torr (range)     < 30 min   

Heating Ramp Rate (RT to 1,700 °F)     < 20ºF/min   

Cooling Rate (1,700 °F to 140 °F)     < 20ºF/min   

Backfill Rate     10 psi/min   

Vent Rate     10 psi/min   

Max. Vessel Temperature     140ºF   

h.   Hot Zone

Heating Zones (Front, Bottom, Left, Right, Back)    5   

Insulation     Graphite Board with Foil and CFC Cover   

Heating Elements     Flat Graphite Bars   

Quench Direction     Top-to-Bottom or Bottom-to-Top