The Graphite Furnace HTK GR operates with rough/fine vacuum, protective gases such as Nitrogen/Argon, and reactive gases like Hydrogen and Carbon Monoxide. The Graphite Furnace HTK GR cannot operate in an Oxygen atmosphere due to the Graphite insulation.
The rectangular design with a front door allows for easy loading and unloading. The HTK GR range is available in up to six different sizes. The smallest designs with a capacity of 8 litres and 25 litres are typically employed by laboratories for research and development. The 80 litre, 220 litre, 400 litre or 600 litre furnaces are predominantly used as pilot manufacturing systems or large scale production.
The HTK GR is based on Graphite insulation material, as well as graphite heating elements. With maximum temperatures up to 2200 °C, the HTK GR is suited for extreme heat treatment needs. Upon request, the system can be equipped with a Graphite retort that is capable of a defined gas guiding flow within the unit and improves temperature uniformity to < ± 10 °C. For processes with strong outgassing, the retort protects the heating elements and increases the lifetime of the furnace.
Video Produs: HTK GR - Cuptor cu cameră, izolație din grafit
Exemple de Aplicații
Graphitization , Pyrolysis, Siliconizare, Sinterizare, Ceramică Tehnică
Caracteristici standard
- Graphite furnace, offering the highest possible temperatures
- Hydrogen partial pressure operation if requested
- Precisely controlled vacuum pumping speeds appropriate for powders
- Data recording for quality management
HTK GR - Cuptor cu cameră, izolație din grafit Vedere în interiorul cuptorului cu grafit HTK
- Frame
- Water cooled vessel
- Heating cassette
- Groove for the sealing
- Front door
- Graphite insulation
Upon request, the HTK GR can be operated up to 3000 °C. For operation at 3000 °C, the furnace is specially designed with a specific isolation thickness, optimal positioning of the heating elements, and a pyrometer for temperature measurement and control. The pyrometer directly measures the heat radiation by optical methods via a window inside the furnace and is not directly inserted into the furnace.
This measurement principle only works if a sufficient amount of radiation is emitted. The needed radiation is only generated at temperatures exceeding 400 °C. For lower temperatures, a sliding thermocouple is used to control the lower temperatures.
Because of the increasing vapor pressure of graphite, 3000 °C operation is only possible under inert gas atmosphere. Additionally, the high vapor pressure also results in carbon being released to the atmosphere. For carbon sensitive samples, a metallic high temperature furnace must be used.
View inside HTK GR
HTK GR - Cuptor cu cameră, izolație din grafit Exemple
HTK 8 GR/22-1G smart up to 2200°C
HTK 25 GR/22-1G automat până la 2200°C cu sistem opțional de piroliză
HTK 400 GR/22-1G automatic up to 2200°C
HTK GR - Cuptor cu cameră, izolație din grafit Date tehnice
| Insulation material | Dimensiuni: Externe H x W x D (mm) | Transport weight (kg) | Usable space | Volum (l) | H x W x D, usable space without retort (mm) | H x W x D, usable space with retort (mm) | Thermal values | Tmax vacuum (°C) | Tmax atmospheric pressure (°C) | -Delta-T, between 500 and 1500°C (K) according to DIN 17052 | Max. heat-up rate (K/min) | Cooling time (h) | Connecting values | Putere (kW) | Voltage (V) | Current (A) | Series fuse (A) | Vacuum (option) | Leakage rate - clean, cold and empty (mbar l/s) | Vacuum range depending on the pumping unit | Cooling water required | Flow (l/min) | Max. inlet temperature (°C) | Gas supply | Nitrogen or Argon flow, others on request (l/h) | Controller | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HTK 8 GR/22-1G | Graphite | 2100 x 1300 x 1100 | 1200 | |
8 | 200 x 200 x 200 | 180 x 180 x 200 | |
2200 | 2200 | ± 10 | 10 | 6 | |
26.5 | 400 (3P) | 3 x 66 | 3 x 80 | |
5x10-3 | rough or fine vacuum | |
40 | 23 | |
200-2000 | on request |
| HTK 25 GR/22-1 | Graphite | 2200 x 1900 x 1800 | 1700 | |
25 | 250 x 250 x 400 | 230 x 230 x 400 | |
2200 | 2200 | ± 10 | 10 | 6 | |
60 | 400 (3P) | 3 x 90 | 3 x 125 | |
5x10-3 | rough or fine vacuum | |
70 | 23 | |
200-2000 | on request |
| HTK 80 GR/22-1G | Graphite | 2300 x 2100 x 2200 | 2000 | |
80 | 400 x 400 x 500 | 380 x 380 x 400 | |
2200 | 2200 | ± 10 | 10 | 8 | |
100 | 400 (3P) | 3 x 150 | 3 x 200 | |
5x10-3 | rough or fine vacuum | |
100 | 23 | |
200-2000 | on request |
| HTK 220 GR/22-1G | Graphite | 2500 x 2300 x 2600 | 3000 | |
220 | 600 x 600 x 600 | 560 x 560 x 560 | |
2200 | 2200 | ± 10 | 10 | 8 | |
160 | 400 (3P) | 3 x 240 | 3 x 315 | |
5x10-3 | rough or fine vacuum | |
150 | 23 | |
1000-10000 | on request |
| HTK 400 GR/22-1G | Graphite | 2500 x 2300 x 2600 | 3800 | |
400 | 650 x 700 x 900 | 630 x 680 x 900 | |
2200 | 2200 | ± 10 | 10 | 12 | |
250 | 400 (3P) | 3 x 370 | 3 x 500 | |
5x10-3 | rough or fine vacuum | |
200 | 23 | |
1000-10000 | on request |
| HTK 600 GR/22-1G | Graphite | 2500 x 2500 x 2900 | 4500 | |
600 | 650 x 750 x 1200 | 630 x 730 x 1200 | |
2200 | 2200 | ± 10 | 10 | 12-16 | |
300 | 400 (3P) | 3 x 450 | 3 x 500 | |
5x10-3 | rough or fine vacuum | |
2200 | 23 | |
1000-10000 | on request |
HTK GR - Cuptor cu cameră, izolație din grafit Descărcări
Fișă de produs HTK GR
Heat Treatment / Debinding & Sintering of Additive Manufacturing of Metals, Metal Injection Moulding
Graphitisation at up to 3000 °C - What is it good for?
Graphite is a soft, slippery, greyish-black substance. It has a metallic luster and is opaque to light. Graphite is a good conductor of heat and electricity. Often graphite is simply named carbon. Under inert gas or vacuum graphite is extremely temperature-resistant which makes it an interesting material for high temperature applications.