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FHV Series

Vacuum Furnace

Vertical Type Vacuum Heat Treatment Furnace
FHV Series

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FHV-90GH

FHV series are used for various purposes such as quenching, tempering and brazing of various metals. Vertical two-chamber configuration which consists of heating chamber + preparation/cooling contributes to space saving by adopting elevation mechanism. Temperature data from heating process to cooling process can be seamlessly recorded for quality control of products.

Features

  • Maximum temperature 1350ºC, Operation temperature 800 to 1150ºC
  • Temperature uniformity is within ±5ºC at 1150ºC
  • Keeping the heating chamber in vacuum for high quality and repeatability of products.
  • Optional rotating cooling mechanism is suitable to process long products such as cutting tools.
  • Thermocouple can be directly set on processing products for historical data of products temperature from heating to cooling as precise quality control.

Applications

  • Quenching, Tempering : various machine parts, parts for air plane.
  • Brazing : Heat exchanger, machine parts, parts for air plane, vacuum interception.

Specifications

System 45 60 90 120 200 Remarks
Performance
Size Uiform hot zone (㎜) Dia meter 450 600 900 1200 2000
Height 450 600 900 1200 2000
Loading capacity (㎏) 180 320 900 1200 2000 including tray's weight
Temperature Max. temperature 1350ºC
Operation temperature 800 to 1150ºC
Temperature uniformity 1150ºC ± 5ºC Five points measurement at no load
Cooling Gas cooling 93kPa (700Torr) 30 minutes or less from 1150ºC to 150ºC when standard specimen is charged.
190kPa (1.9㎏/cm2G) 20 minutes or less
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 to 13Pa (1〜10-1Torr)
Pump-down time 10 minutes
or less
15 minutes
or less
from the atmosphere to 6.5Pa ( 5×10-2Torr) at no load
Leak rate
(Pa・m3/S)

10-4

10-4

10-4

10-4
by pressure rise method
Utility
Power requirement (kVA) GH* 65 101 209 278 420 AC 200/ 220V
90& 120 type 400/ 440V 50/ 60Hz
3φ (Primary power requirement)
Cooling water requirement (kVA) GH* 3 5 9 16 28 Pressure 2.5/cm2G (250KPa)
Temperature 30ºC or less ※25ºC or less,
with oil diffusion pump
Compressed air requiremen
(Nm3 /min)
Some 7㎏/cm2G (700KPa)
Carrier gas requirement (L/min) 1.5 2.2 7.2 10 15 N2gas (N.T.P)
Cooling gas requirement (m2/times) 1.8 3 6 10 15 N2 gas (N.T.P)
Floor space requirement (m2) 2chamber type GH* 3.4×5.1 4×6.3 6×9 7×10 10×15 W×L
3.5× 2.3 4× 2.6 5× 3.5 6× 4 8× 6 H×D

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

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