High-temperature furnace
HTO-72
High-temperature furnace HTO-72
for material testing in air and a heating zone length of 20 cm
General Features
The HTO-72 high-temperature furnace is characterized by excellent temperature distribution, which is due to its 3-zone version. Each zone can be controlled independently, enabling precise temperature control, especially when an appropriate temperature controller is used.
The furnace is made <strong>more energy-efficient</strong> through the use of a lightweight, thermally insulating and asbestos-free aluminum silicate wool. Aluminum silicate wool more energy efficient. .
The housing of the furnace is made of stainless steel, which increases the longevity of the appliance.
In addition, the ovens are equipped so that measurements can be taken at several windows using optical measuring devices.
| Technical information | ||
|---|---|---|
| Mass and weight | ||
| Heated zone (length) | 3 zone: Length per zone: | Per zone approx. 65 mm (vertical) Can be controlled independently |
| Furnace external dimensions | Ø: Height: | Approx. 295 mm Approx. 240 mm |
| Heating room internal dimensions | Ø: Height: | Approx. 120 mm Approx. 200 mm |
| Feed-through opening | Ø above Ø below | 80 mm 90 mm |
| Window | Width x Height | Side window: 200 x 25 mm Front window: 200 x 45 mm Window at the top: Ø 80 mm |
| Thermal values | ||
| Temperature range | (Indoor) room temperature up to 1150°C | |
| Permissible heating element surface temperature | Max. 1250 ° C | |
| Heating rate | max. 20 K/min. | |
| Materials | ||
| Heating conductor | • Fibrothal modules with A1 resistance coils • Horizontally positioned and free-radiating | |
| Thermocouple | • NiCr-Si-NiSi, Type N | |
| Thermal insulation | • Polycrystalline AI2O3- Wool | |
| Housing | • Stainless steel • Reduction of the outer wall temperature by convection air cooling between the insulation and the housing wall • Perforated sheet outer jacket for additional heat dissipation • Hinged housing with side opening in the separation area for inserting a sample thermocouple unit • With front viewing window that can be opened • The side oven windows are welded shut. • The upper oven window is also welded shut. • The locking mechanism for closing one of the two housing halves is mounted above the oven. | |
| Window pane material: | Quartz glass | |
| Max. permissible window-glass temperature: | 800°C | |
| Mainly suitable for wavelength transmission: | 650 nm | |
| Electrics | ||
| Power/Connection | Approx. 0,6 KW per zone / 34 V, 50 Hz Safety switch for OFF when opening the furnace |
Features
- Double-walled construction – convection cooling reduces the outside wall temperature.
- The oven hangs on oven supports so that the oven can be fully opened.
- The MSRA regulator uses transformers to provide the required high current and reduce the voltage. Thanks to the lower voltage, the oven's lifespan is extended.
- Folding furnace. Fast and easy sample loading of samples possible.
- Durable embedded horizontal heating elements.
- Furnace bore optimized for a wide range of adapters and test fixtures without causing large heat losses.
- Lightweight and asbestos-free insulation material to minimize power consumption.
- Stainless steel housing.
- All electrical connections are made to the MSRA controller.
- Front cutout allows access to high-temperature extensometers.
- Uniform temperature gradient through 3 independent heating zones.
- Five feed-throughs for thermocouples, one on the right and one on the left, three of which are in the middle heating zone.
- Movable thermocouple arrays for temperature are available as an option.
- The opening and closing of the oven is controlled via the suspension.
- Upper and lower end plates with tie rod cutouts are manufactured to fit the test device.
- OFF safety switch when opening the furnace.
- 2 extensometer openings:
Front with longitudinal slot with front viewing window
Rear with cross-slot - for diametral extensometer.
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