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Hornos industriales - HTF

Hornos de cámara de alta temperatura - HTF

HTF 17/5 & HTF 18/27

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La gama de hornos de cámara Carbolite Gero HTF está diseñada para ofrecer precisión y rendimiento, con temperaturas de hasta 1.800 °C. Estos hornos son ideales para diversos procesos, como sinterización, recocido, calcinación y otros tratamientos térmicos. Cada unidad de la gama HTF está construida con materiales de alta calidad e incorpora tecnología térmica avanzada para garantizar una distribución uniforme del calor, un control óptimo de la temperatura y un rendimiento duradero. 

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. 

 

Información general

Temp. máx.
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 
 

 

Hornos de cámara de alta temperatura - HTF Leading Heat Technology

Carbolite Gero'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

Vista del interior del horno de cámara HTF de 1700 °C y 1800 °C:

  • elementos calefactores ( MoSi2)
  • aislamiento de fibra cerámica
  • puerta frontal
  • bastidor de soporte
  • termopar
  • espacio utilizable
Los elementos calefactores en forma de U de  MoSi2 se instalan en posición vertical, colgando dentro del HTF. El calor se aísla mediante placas de fibra cerámica, dispuestas en capas con un grosor adecuado para mejorar la uniformidad de la temperatura. La temperatura máxima de estas placas se elige en función de los requisitos de temperatura máxima del horno. El enfriamiento por agua es innecesario debido a la baja conductividad térmica del material aislante. El sistema se enfría externamente por convección del aire ambiente y está cerrado con placas metálicas. Los elementos calefactores de  MoSi2 son ideales para procesos de alta temperatura, ya que forman de forma natural una capa protectora de óxido a temperaturas elevadas. El horno de cámara HTF se distingue por su excepcional uniformidad de temperatura y su diseño compacto.

HTF PART IDENTIFICATION Optional debinding and sintering with pre-heated air flow and gas flame after burner

  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 Gero 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

Desbanderizado & sinterización en el 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 Gero 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

 

 

Programador táctil CC-T1
Programador táctil CC-T1

Hornos de cámara de alta temperatura - HTF Control de temperatura y comunicación

HTF furnaces are equipped with ethernet communications and a programmable controller with 24 segments as standard: :

  • Single zone furnaces fitted with Carbolite Gero EPC3016P1 controller
  • Over-temperature protection to protect valuable contents and for unattended operation

 

 

Opciones:

  • A range of sophisticated digital controllers, multi-segment programmers and data loggers is available.

Hornos de cámara de alta temperatura - HTF Datos técnicos

Temp. máx. (°C) Tiempo de calentamiento (min) Medidas:
interior H x A x F (mm)
Medidas: exterior, con puerta abierta, H X A x F (mm) configuración Volumen de cámara (litros) Potencia máx. (W) Digital Ethernet Comms Termopar tipo Peso (kg)
HTF 17/5 1700 50 158 x 150 x 225 565 x 830 x 650 (850) modelo de sobremesa 5 4050 norma B 109
HTF 17/10 1700 44 232 x 200 x 225 565 x 830 x 650 (850) modelo de sobremesa 10 5920 norma B 133
HTF 18/4 1800 65 140 x 140 x 190 565 x 830 x 650 (850) modelo de sobremesa 4 4650 norma Pt20%Rh/Pt40%Rh 115
HTF 18/8 1800 56 210 x 190 x 190 565 x 830 x 650 (850) modelo de sobremesa 8 6200 norma Pt20%Rh/Pt40%Rh 128
HTF 17/27 1700 -- 300 x 300 x 300 1835 x 900x 1000 (1950) Floor standing 27 10000 norma B 355
HTF 17/64 1700 -- 400 x 400 x 400 2530 x 1150 x 1490 Floor standing 64 16000 norma B 555
HTF 18/27 1800 -- 300 x 300 x 300 1835 x 900x 1000 (1950) Floor standing 27 1000 Standard B 355
HTF 18/64 1800 -- 400 x 400 x 400 2530 x 1150 x 1490 Floor standing 64 16000 Standard B 555
HTF _/128 1700,1800 -- 400 x 400 x 800 2000 x 1000 x 1500  Floor standing 128 40000 norma B --
HTF _/165 1700,1800 -- 550 x 550 x 550 2450 x 1400 x 1400 (door open) Floor standing 165 40000 Standard B --

Información importante
- La temperatura de operación continua es de 100 °C por debajo de la temperatura máxima
- Tiempo de calentamiento hasta la temperatura de operación continua con la cámara vacía
- Con muestras de dióxido de circonio puede producirse una reacción química entre las resistencias y la muestra que lleve a la decoloración de la muestra. Para mayor información acerca de cómo trabajar con este tipo de muestras y sobre la utilización de otro tipo de resistencias, contáctenos.

Reservado el derecho a realizar modificaciones técnicas o correcciones.

HTF Debinding & sintering Cerámica técnica

Los procesos de desbanderizado y sinterización son necesarios para eliminar los aglutinantes orgánicos y densificar los componentes cerámicos.

 

  • Efficient debinding
  • Densification of parts
  • Uniform shrinkage

 

Hornos para el desbanderizado Reporte de aplicación

Modern Solutions for Safe Debinding of Ceramic Parts CARBOLITE GERO has developed sophisticated safety concepts for safe debinding of ceramic parts.

HTF Furnaces 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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Póngase en contacto con nosotros para una consulta gratuita y hable con un especialista en productos para encontrar la solución más adecuada a los requisitos de su aplicación.
 

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