VERTICAL VACUUM FURNACE
COOLING PRESSURE 12 BAR TYPE 12.0 VVPT-EH-32/48N
Vacuum furnace type 12.0 VVPT-EH-32/48N is designed for vacuum heat treatment of heat repaired gas turbine combustion liners, transition pieces, buckets, nozzles and other high temperature alloy parts as per the customer requirements:
/ hardening,
/ tempering,
/ annealing,
/ vacuum brazing,
/ LPC.
General information:
/ Manufacturer: SECO/WARWICK,
/ Year of production: 2004,
/ Localization: Southern Italy,
/ The furnace is operational: testing on site possibility,
/We offer the furnace technical assessment, relocation and installation at the destination place in E.U.
Technical data
Basic data |
|
| Useful dimensions (Æ x H) | 800 x 1200 mm |
| Maximum hearth load | 800 kg |
| Temperature | |
| Maximum temperature | 1350°C |
| * working temperature – vacuum heating | 600 – 1320°C |
| * working temperature – convection heating | 150 – 750°C |
| Temperature uniformity (empty furnace after equalising) | ± 5°C |
| Cooling | |
| Maximum cooling gas pressure | 12 bar absolute |
| Maximum gas pressure during convection heating | max.4bar absolute |
| Vacuum | |
| Ultimate vacuum (clean, cold and empty furnace) | < 5 x 10-2 tor |
| Maximum leak rate (clean, cold and empty furnace) | 1 x 10-3 mbar x l/s |
| Total weight | ca. 12000 kg |
| Vacuum chamber | |
| Material | mild steel |
| Volume | 6,5m3 |
| Cover locking | third clamping flange |
| Hot zone | |
| Materials: | |
| * structure | mild steel |
| * thermal insulation | hard graphite felt boards & graphite foam |
| * heating elements | graphite |
| Heating power | 180kW (3 x 60 kW) |
| Heating zones | three: one on side walls furnace |
| Heating element distribution | all around workload |
| Type of heating elements | low-voltage heating bands and tubes |
| Convection heating fan | 2 kW; 1500 rpm |
| Gas cooling system | |
| Gas inflow | nozzle system – all around load |
| and from the furnace bottom | |
| Hot gas outflow | bung in top |
| Gas blower: | |
| * motor | 3000/1500 rpm; 110/37 kW S2=200Kw |
| Pumping system | |
| Rotary piston pump | 600 m3/h (340cfm) * type |
| * motor power | 5.5 kW |
| Root’s pump | 2000 m3/h |
| * type | WCV1200 KAESR |
| * motor power | 4 kW |
| Vacuum valve | KWW DN100 |
| Instrumentation | |
| Heating elements power control | Continuous |
| Thermocouples | Type S (1off control + 1 off safety) |
| Type K(2 off isothermal quench) | |
| Programmable logic controller | Allen-Bradley SLC-500 |
| Operator panel | Advantech operator interface terminal |
| Temperature controller/programmer | in PLC |
| Over-temperature controller | UDC 100L Honeywell |
| Vacuum transmitter | TTR 216S Leybold-Vacuum |
| * measuring range | 1 x 10-3 – 1 x 103 mbar |
| Partial pressure control range | 10-2 to 1 mbar |
