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Strong Convection Bell Type Annealing Electric Heat Treat Furnace
1. Application of annealing heat treat furnace
The strong convection bell type heat treatment furnace is mainly used for heat treatment of machine parts such as coil wires and wires,
and can also be used for heat treatment of other workpieces under the environment below the rated temperature.
The temperature control system uses PID zero crossing trigger thyristor, and programmable
high precision intelligent meter to control temperature.
The bell type annealing furnace has good stability, and uses paperless recorder to automatically record temperature, with
U disk recording and over temperature alarm dual control, to ensure that the workpiece does not exceed the temperature.
Automatic interlock control is adopted for each mechanical transmission part of electric heat treat furnace to
ensure operation safety.
electric heat treatment furnace/ resistance furnace/bell type annealing furnace
2. Main technical parameters of bell type annealing furnace
| No. | Item | Specification |
| 1 | Rated heating power | 60KW±10% (adjustable) |
| 2 | Rated temperature | 850℃ Normal working temperature: 720-850 ℃ |
| 3 | Power supply | 380V, 3-phase, 50 Hz |
| 4 | Heating zones | 1 zone |
| 5 | Effective working size | Ф800×1200mm (diameter × height) |
| 6 | Temperature uniformity | ± 5 ℃ |
| 7 | Temperature control accuracy | ± 2 ℃ |
| 8 | Power loss of empty furnace | ≤ 18% |
| 9 | Opening and closing of heating cover | By crane |
| 10 | Heating sides | Around the furnace |
| 11 | Temperature of furnace surface | ≤ 45 ℃ + room temperature |
| 12 | Charging mode | the workpiece is hoisted on the hearth for heating |
| 13 | Temperature control mode | PID control, Shimaden temeprature controller |
| 14 | Furnace lining | refractory fiber |
| 15 | Heating element | 0cr25al5 (service temperature ≤ 950 ℃) |
| 16 | Furnace configuration | 1 furnace body, and 1 seat |
electric heat treatment furnace/ resistance furnace/bell type annealing furnace
3. Equipment compostion of heat treat furnace
RZ-60-9 bell type heat treatment resistance furnace is mainly composed of heating cover,
two furnace seats, two muffle tanks, one external cooling cover, heating elements and
fixed devices, electrical control system, automatic furnace temperature control system, etc.
electric heat treatment fur
nace/ resistance furnace/bell type annealing furnace
