ULVAC Vietnam Representative Office

Horizontal Type Vacuum Heat Treatment Furnace MODEL FHH-45, FHH-60, FHH-75, FHH-90, FHH-120

FHH series are used for various purposes such as quenching, tempering, sintering and brazing of various metals. Chamber configuration can be multiplied up to 3 chambers by adopting fork carry system.

Features

  • Maximum temperature1350ºC,Operation temperature800 to 1150ºC
  • Temperature uniformity is within ± 5ºC at 1150ºC
  • Keeping the heating chamber in vacuum for high quality and repeatability of products.
  • Carrier gas system is implemented to minimize metal evaporation.
  • At cooling process, heating chamber is not cooled so that power consumption can be saved.
  • The heating chamber is kept in vacuum to prevent from oxidizing so that lifetime for internal parts of the heating chamber can be longer.
  • Water-cooling jacket construction contributes clean work environment.

applications

  • Quenching, Tempering : Various machine parts, Dies.
  • Sintering : Superhard tools, Magnet.
  • Brazing : Heat exchanger, machine parts.

specifications

System / Type45607590120Remarks
PerformanceSizeUniform hot zone 〔㎜〕Width4506007509001200 
Length675900112513501800 
Height300400500600800 
Loading capacity 〔㎏〕20040065010002000including tray’s weight
TemperatureMax. temperature1350ºC 
Operation temperature800 to 1150ºC 
Temperature uniformity1150ºC ± 5ºCFive points measure ment at no load
CoolingGas cooling93 kPa (700 Torr)30minutes or lessfrom 1150ºC to 150ºC when standard specimen is charged.
190 kPa (1.9㎏/ cm2 G)20 minutes or less
Handling time to oil quenching pit12sec15sec20sec 
VacuumUltimate vacuum10-1Pa(10-3Torr) order. *High vacuum 10-3Pa (10-5 Torr) order is option.At degassed and empty conditions
Operating pressure133 to13Pa (1〜10-1Torr) 
Pump-down time10minutes or less15minutes or lessfrom the atmosphere to 6.5Pa (5×10-2 Torr) at no load
Leak rate 〔Pa・m3 /S〕3 × 10-44 × 10-44 × 10 -45 × 10 -4by pressure rise method
UtilityPower require -ment 〔kVA〕GH*65101161209303AC 200/220V (90& 120 type, 400/440V) 50/60Hz 3φ
G/L.H*73110187244354
PHG*70109175228333
GHL*85130223300429(Primary power requirement)
Cooling water require ment 〔kVA〕GH*357916Pressure 2.5/cm2G (250KPa) Temper ature 30ºC or less ※25ºC or less : Oil diffusion pump type
G/L.H*345711
PHG*4581118
GHL*4691118
Compressed air require ment 〔Nm3 /min〕Some7㎏/ cm2G (700 KPa)
Carrier gas require ment 〔L/min〕1.5234.56N2 gas (N.T.P)
Cooling gas require ment 〔m3/times〕2.74.561018N2 gas (N.T.P)
Quenching oil require ment 〔m31.83.669 
Quenching oil heater 〔kW〕15244872 
Floor space require ment 〔m22chamber type3.4× 5.73.9× 7.44.6× 8.75.5× 97× 12.5W×L
3chamber type3.4× 8.13.7× 9.44.6× 10.65.5× 127× 17
Gtype PHG3.5× 0.53.9× 0.55× 0.55.5× 0.56.5× 0.5H×D
Ltype GHL3.5× 1.04× 1.45× 1.55.5× 1.86.5× 2.4

* Chamber used:P=Preparation(loading/unloading)Chamber,H=Heating Chamber, G=Gas Cooling Chamber,L=Oil Cooling Chamber