ULVAC Vietnam Representative Office

VERTICAL TYPE VACUUM HEAT TREATMENT FURNACE FHV SERIES

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.
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applications

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

specifications

System456090120Remarks
Performance
SizeUiform hot zone (㎜)Dia meter4506009001200 
Height4506009001200 
Loading capacity (㎏)1803209001200including tray’s weight
TemperatureMax. temperature1350ºC 
Operation temperature800 to 1150ºC 
Temperature uniformity1150ºC ± 5ºCFive points measurement at no load
CoolingGas cooling93kPa30 minutes or lessfrom 1150ºC to 150ºC when standard specimen is charged.
190kPa20 minutes or less
VacuumUltimate vacuum10-1Pa(10-3Torr)order.(High vacuum 10-3Pa (10-5 Torr) order is option)At degassed and empty conditions
Operating pressure133 to 13Pa (1〜10-1Torr) 
Pump-down time10 minutes or less15 minutes or lessfrom the atmosphere to 6.5Pa ( 5×10-2Torr) at no load
Leak rate
(Pa・m3/S)
3×10-44×10-45×10-4by pressure rise method
Utility
Power requirement (kVA)GH*65101209278AC 200/ 220V
90& 120 type 400/ 440V 50/ 60Hz
3φ (Primary power requirement)
Cooling water requirement
(m3 /hr)
GH*35916Pressure 2.5/cm2G (250KPa)
Temperature 30ºC or less ※25ºC or less,
with oil diffusion pump
Compressed air requiremen (Nm3 /min)Some700KPa
Carrier gas requirement (L/min)1.52.27.210N2gas (N.T.P)
Cooling gas requirement (m3/times)1.83610N2 gas (N.T.P)
Floor space requirement (m2)2chamber type GH*3.4×5.14×6.36×97×10W×L
3.5× 2.34× 2.65× 3.56× 4H×D

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