Horizontal Type Vacuum Heat Treatment Furnace FHH series

Horizontal Type Vacuum Heat Treatment Furnace

fhh Series

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 / Type 45 60 75 90 120 Remarks
Performance Size Uniform hot zone 〔㎜〕 Width 450 600 750 900 1200  
Length 675 900 1125 1350 1800  
Height 300 400 500 600 800  
Loading capacity 〔㎏〕 200 400 650 1000 2000 including tray’s weight
Temperature Max. temperature 1350ºC  
Operation temperature 800 to 1150ºC  
Temperature uniformity 1150ºC ± 5ºC Five points measure ment at no load
Cooling Gas cooling 93 kPa (700 Torr) 30minutes or less from 1150ºC to 150ºC when standard specimen is charged.
190 kPa (1.9㎏/ cm2 G) 20 minutes or less
Handling time to oil quenching pit 12sec 15sec 20sec  
Vacuum Ultimate vacuum 10-1Pa(10-3Torr) order. *High vacuum 10-3Pa (10-5 Torr) order is option. At degassed and empty conditions
Operating pressure 133 to13Pa (1〜10-1Torr)  
Pump-down time 10minutes or less 15minutes or less from the atmosphere to 6.5Pa (5×10-2 Torr) at no load
Leak rate 〔Pa・m3 /S〕 3 × 10-4 4 × 10-4 4 × 10 -4 5 × 10 -4 by pressure rise method
Utility Power require -ment 〔kVA〕 GH* 65 101 161 209 303 AC 200/220V (90& 120 type, 400/440V) 50/60Hz 3φ
G/L.H* 73 110 187 244 354
PHG* 70 109 175 228 333
GHL* 85 130 223 300 429 (Primary power requirement)
Cooling water require ment 〔kVA〕 GH* 3 5 7 9 16 Pressure 2.5/cm2G (250KPa) Temper ature 30ºC or less ※25ºC or less : Oil diffusion pump type
G/L.H* 3 4 5 7 11
PHG* 4 5 8 11 18
GHL* 4 6 9 11 18
Compressed air require ment 〔Nm3 /min〕 Some 7㎏/ cm2G (700 KPa)
Carrier gas require ment 〔L/min〕 1.5 2 3 4.5 6 N2 gas (N.T.P)
Cooling gas require ment 〔m3/times〕 2.7 4.5 6 10 18 N2 gas (N.T.P)
Quenching oil require ment 〔m3 1.8 3.6 6 9  
Quenching oil heater 〔kW〕 15 24 48 72  
Floor space require ment 〔m2 2chamber type 3.4× 5.7 3.9× 7.4 4.6× 8.7 5.5× 9 7× 12.5 W×L
3chamber type 3.4× 8.1 3.7× 9.4 4.6× 10.6 5.5× 12 7× 17
Gtype PHG 3.5× 0.5 3.9× 0.5 5× 0.5 5.5× 0.5 6.5× 0.5 H×D
Ltype GHL 3.5× 1.0 4× 1.4 5× 1.5 5.5× 1.8 6.5× 2.4

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

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