The Carbolite HTF chamber furnace range is engineered for precision and performance, offering temperatures up to 1800°C. These furnaces are ideal for a variety of processes including sintering, annealing, calcination, and other thermal treatments. Each unit in the HTF range is built with high-quality materials and incorporates advanced thermal technology to ensure uniform heat distribution, optimal temperature control, and long-lasting performance.
Whether you're involved in research and development, quality control, or production in sectors such as ceramics, metallurgy, electronics, or materials science, the HTF chamber furnace range is designed to meet your specific requirements. With a focus on user-friendly operation, safety, and efficiency, these furnaces are equipped with intuitive controls, robust safety features, and energy-saving capabilities.
Kurzübersicht
| Maximaltemperatur 1700, 1800°C |
Control thermocouple Type B |
| Configuration Bench mounted : 4, 5, 8 & 10 litre Floor standing : 27, 64,128, 165 litre |
Furnace useable volume 1700°C: 5, 10, 27, 64,128,165 litre 1800°C: 4, 8, 27, 64,128, 165 litre |
Hochtemperaturofen - HTF Leading Heat Technology
Carbolite's HTF furnace range is at the pinnacle of furnace design. The culmination of over 80 years of experience in thermal engineering; combining the latest technological developments with solid construction and high-quality components.
HEATING ELEMENT:
- Excellent temperature uniformity
- Fast heat-up and cool-down rates
- Unsurpassed temperature uniformity
HIGH QUALITY THERMAL INSULATION
- Low energy consumption
- Low external case temperature
- Designed for longevity
INSIDE HTF Chamber Furnaces
Blick in den 1700 °C und 1800 °C heißen Kammerofen:
- Heizelemente ( MoSi2)
- Keramikfaser-Isolierung
- Tür des Schmelzofens
- Tragrahmen
- Thermoelement
- Nutzbarer Raum
U-förmige MoSi2-Heizelemente sind in einer vertikalen, hängenden Position innerhalb des HTF installiert. Die Wärme wird mit Keramikfaserplatten isoliert, die in einer geeigneten Dicke geschichtet sind, um die Temperaturgleichmäßigkeit zu verbessern.Die maximale Temperatur dieser Platten wird auf Grundlage der maximalen Temperaturanforderungen des Ofens gewählt. Eine Wasserkühlung ist aufgrund der geringen Wärmeleitfähigkeit des Isoliermaterials nicht erforderlich. Das System wird extern durch Konvektion der Umgebungsluft innerhalb des Außengehäuses gekühlt. MoSi2-Heizelemente sind ideal für Hochtemperaturprozesse, da sie bei hohen Temperaturen auf natürliche Weise eine schützende Oxidschicht bilden. Der HTF-Kammerofen zeichnet sich durch seine außergewöhnliche Temperaturgleichmäßigkeit und sein kompaktes Design aus.
Optional debinding and sintering with pre-heated air flow and gas flame after burner HTF PART IDENTIFICATION
1. Gas fired afterburner
2. Motorised damper
3. Molybdenum disilicide elements
4. Gas controls
5. Automatic door
6. Side channel blower
7. Air preheater
HTF Chamber Furneces Features & Options
The HTF high temperature furnace range comprises 1700 °C and 1800 °C models.
The four smaller models are bench mounted and the larger units are floor-standing. These furnaces may be customised in order to satisfy specific customer requirements, e. g. the addition of debinding options for ceramic binder burn-off applications.
Standard Features:
- 1700°C & 1800°C maximum operating temperature
- From 4 to 165 litre capacities
- High quality molybdenum disilicide heating elements
- Vertical lift door keeps heated surface away from the user
- Manual door operation on the 4 to 10 litre models
- Electrical door actuation on the 27 to 165 litre models
- Advanced refractory interior, used in combination with energy efficient low thermal mass insulation
- Programmable EPC3016P1 controller
- Over-temperature protection
- Ethernet communications
- Fan cooling for low external case temperature
- Motorised exhaust vent
Options:
- A range of sophisticated digital controllers, multisegment programmers and data loggers with digital communication options is available - more information about controllers
- Inert gas inlet
- 100mm flowmeter for inert gas
- Solenoid valve with manual switch
- Solenoid valve with automatic switch
- Fast cooling comprising an air blower and utilising the standard motorised exhaust vent
- Debinding and sintering with pre-heated air flow
- Debinding and sintering with pre-heated air flow and gas flame after burner
- Sheathed thermocouple calibration port
- Unsheathed thermocouple calibration port through back wall of chamber (Ø 12 mm)
- Unsheathed thermocouple calibration port through centre of door (Ø 12 mm)
Debinding & sintering
Carbolite HTF furnaces may be equipped with debinding and sintering options to accommodate a range of technical ceramic applications A thermally induced decomposition and evaporation of the binder occurs due to gas flow through the HTF furnace during the debinding phase. The gas flow guides vapours to leave the sample.
The sintering of oxide ceramics in an HTF 1700°C or 1800°C furnace is a critical process in materials engineering, essential for achieving optimal mechanical and structural properties in ceramic components. This high-temperature sintering, particularly relevant for materials like alumina and zirconia, optimizes microstructural characteristics, enhancing performance in demanding applications.
High quality MoSi2 heating elements and preheated air inlet.
Optimised pre-heated air flow for efficient binder removal.
For safe combustion of binder gases an active propane gas afterburner can be provided.
Sinter run in HTF 18/64
Disclaimer: The information presented shows typical performance. Furnace load ~ 8kg.
Loading: The ceramic is placed on a sintering tray in the HTF furnace, using a tray that withstands high temperatures without reacting with the ceramic.
Ramp-Up: The furnace's temperature is methodically increased to 1800°C, with a controlled profile to prevent thermal shock and ensure even heating, possibly pausing at certain temperatures for stress relief.
Soak: At 1800°C, the ceramic undergoes a critical soak, allowing particles to merge through diffusion, enhancing density and growth.
Cool Down: Following the soak, the furnace cools to room temperature at a rate that prevents thermal stress, avoiding cracks or deformation in the ceramic.
Cooling options
The cool down phase in sintering oxide ceramics, is crucial for maintaining structural integrity and achieving desired properties. By utilising the HTF furnace's pre-heated air inlet blower options the user gains flexibility for their sintering processes. This feature allows precise control of cooling from sintering temperatures (1700 or 1800°C) to room temperature, preventing thermal gradients and associated stresses that could damage the ceramic.
For complex shapes or materials prone to thermal shock, step cooling can be used. With the HTF furnace step cooling can be optimised to minimize thermal stress risks by holding at intermediate temperatures to equalize internal and external temperatures. The HTF furnace can be used to tailor the cool down to each ceramic's needs ensures high-quality components with optimal properties.
Cool down rates for HTF 17/430
Entbindern & Sintern im HTF
During the heat treatment process, the 3D-printed components were treated in the same furnace. The X-shaped sample experienced a weight loss of approximately 6.5%, while the rectangular-shaped sample showed a weight loss of about 11.1%.
Temperature uniformity
The HTF furnaces ensures exceptional temperature uniformity with its advanced design, high-quality elements, and superior thermal insulation for minimal heat loss and even heat distribution.
Advantages of investing in a Carbolite furnace:
- Efficient removal of binder due to a high airflow
- Great temperature uniformity at low temperatures due to the air pre-heater
- Safe handling of binder by using the thermal afterburner
- Unique uniformity at high temperatures due to an optimized heating element arrangement
- Air blowers can be used for fast cooling to minimize run times
Aries Plus Touchscreen-Controller
Hochtemperaturofen - HTF Temperaturregler & Schnittstellen
HTF furnaces are equipped with ethernet communications and a programmable controller with 24 segments as standard: :
- Single zone furnaces fitted with Carbolite EPC3016P1 controller
- Over-temperature protection to protect valuable contents and for unattended operation
Optionen:
- A range of sophisticated digital controllers, multi-segment programmers and data loggers is available.
HTF Debinding & sintering Technische Keramik
Zur Entfernung organischer Bindemittel und zur Verdichtung keramischer Bauteile sind Entbinder- und Sinterprozesse notwendig
- Efficient debinding
- Densification of parts
- Uniform shrinkage
Entbinderungsöfen Applikationsbericht
Zur Entfernung organischer Bindemittel und zur Verdichtung keramischer Bauteile sind Entbinder- und Sinterprozesse notwendig
- Efficient debinding
- Densification of parts
- Uniform shrinkage
Modern Solutions for Safe Debinding of Ceramic Parts
CARBOLITE GERO has developed sophisticated safety concepts for safe debinding of ceramic parts
Laboratory and industrial ovens - FAQ
what makes the 1700 & 1800°c chamber furnace range ideal for thermal treatments?
The 1700 & 1800°c furnace range, designed for precision and performance, excels in processes like sintering, annealing, and calcination. Built with top-notch materials and incorporating advanced thermal technology, it ensures uniform heat distribution, optimal temperature control, and durability. Ideal for sectors such as ceramics, metallurgy, and electronics, it meets diverse research, quality control, and production needs.
how does the 1700 & 1800°c furnace range ensure temperature uniformity and efficiency?
Featuring high-quality molybdenum disilicide heating elements and advanced thermal insulation, the furnace range achieves excellent temperature uniformity, quick heat-up and cool-down rates, while reducing energy consumption. These components contribute to the furnaces' efficiency and consistent heating capabilities, ensuring low external case temperatures and longevity.
can 1700 & 1800°C chamber furnaces be customized for specific applications?
1700 & 1800°C furnaces offer customization for specific requirements, including debinding options for ceramic binder burn-off. Available in both bench-mounted and floor-standing models, each furnace can be tailored for precise technical needs, providing flexibility and precision for various applications.
What are the key features and options available with the 1700 & 1800°c furnaces?
1700 & 1800°C furnaces have programmable controllers, over-temperature protection, and fan cooling for safety and ease of use. Options include sophisticated digital controllers, inert gas inlets, solenoid valves, and fast cooling. These features facilitate user-friendly operation, safety, and adaptability for a wide range of processes.
How do 1700 & 1800°C chamber furnaces accommodate debinding and sintering processes?
Equipped with debinding and sintering options, including pre-heated air flow and gas flame afterburners, these furnaces support thermal decomposition and evaporation of binders during debinding. This capability, along with precise temperature control during sintering, optimizes the mechanical and structural properties of ceramics, ensuring high-quality outcomes for technical ceramic applications.
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Kontaktieren Sie uns für eine kostenlose Beratung und sprechen Sie mit einem Produktspezialisten, um die am besten geeignete Lösung für Ihre Anwendungsanforderungen zu finden!
Hochtemperaturofen - HTF Technische Daten
| Maximaltemperatur (°C) | Aufheizzeit (min) | Abmessungen: Innen H x B x T (mm) |
Abmessungen: Außen H x B x T (mm) (H mit geöffneter Tür mm) |
Konfiguration | Volumen (Liter) | Max. Leistung (W) | Digital Ethernet Comms | Thermoelement Typ | Gewicht (kg) | |
|---|---|---|---|---|---|---|---|---|---|---|
| HTF 17/5 | 1700 | 50 | 158 x 150 x 225 | 565 x 830 x 650 (850) | Tischmodell | 5 | 4050 | Standard | B | 109 |
| HTF 17/10 | 1700 | 44 | 232 x 200 x 225 | 565 x 830 x 650 (850) | Tischmodell | 10 | 5920 | Standard | B | 133 |
| HTF 17/27 | 1700 | -- | 300 x 300 x 300 | 1835 x 900x 1000 (1950) | Floor standing | 27 | 10000 | Standard | B | 355 |
| HTF 17/64 | 1700 | -- | 400 x 400 x 400 | 2530 x 1150 x 1490 | Floor standing | 64 | 16000 | Standard | B | 555 |
| HTF 18/4 | 1800 | 65 | 140 x 140 x 190 | 565 x 830 x 650 (850) | Tischmodell | 4 | 4650 | Standard | Pt20%Rh/Pt40%Rh | 115 |
| HTF 18/8 | 1800 | 56 | 210 x 190 x 190 | 565 x 830 x 650 (850) | Tischmodell | 8 | 6200 | Standard | Pt20%Rh/Pt40%Rh | 128 |
| HTF 18/27 | 1800 | -- | 300 x 300 x 300 | 1835 x 900x 1000 (1950) | Floor standing | 27 | 10000 | Standard | B | 355 |
| HTF 18/64 | 1800 | -- | 400 x 400 x 400 | 2530 x 1150 x 1490 | Floor standing | 64 | 16000 | Standard | B | 555 |
Hochtemperaturofen - HTF Downloads
