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The FNC/TT treatment lines constructed by CIEFFE FORNI INDUSTRIALI are the result of a great experience in building transport belt furnaces combined with the technology of the LLF-furnaces.
The result is a plant with considerable treatment uniformity, with unmatchable results in comparison with an equal furnace equipped with a steel muffle.
The heating can be both electrical and with self-regenerative gas burners, without changing neither the capacity nor the construction system of the plant.
The composition of the line can vary according to the production necessities, just as the quenching fluids (oil, water, salt, etc.).
Particular attention has been paid to the control system of the plant. The most advanced version is equipped with a dedicated programmer (basically a PC).
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The same construction philosophy characterises various types of plants built by CIEFFE FORNI INDUSTRIALI, applying the maximum automation where possible,
Some examples of this kind of custom-built plants are:
- automatic belt lines for the hardening and tempering of self-tempering stainless steels;
- automatic lines for die quenching furnaces with roller movement;
- automatic roller-, pusher-, chamber-lines for isothermic hardening and tempering;
- automatic treatment lines for aluminium parts;
- automatic high productivity lines for the annealing of noble metals;
- automatic lines combined with continuous and discontinuous plants with the same store and the same loading dimensions.
As to this regard, we would like to draw your attention to the considerable gain of flexibility in the management of the charges in system like this, where the same priority, according to production and quality requirements, can be directed to two different working areas of the same store.
The construction of plants working in controlled atmosphere obliges us to the continuous research of new systems for the generation of atmosphere for the various types of treatments. The current research regards the reduction of expenses and the reaching of the quality standards demanded by the market.
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CF and CDF High Temperature Infrared Furnaces for Firing & Drying
The new Despatch CF and CDF Series infrared furnaces are ideal for process applications that require rapid ramp-up and cool-down rates as well as provide consistent quality-as required in photovoltaic cell production.
Very fast ramp rates optimize contact formation on silicon wafers with shallow emitters and silicon nitride coating. Rapid heating and cooling allows firing the contact through the silicon nitrate while rapid cooling prevents damage to the junction. The rapid heating and cooling requires faster belt speeds which enhances throughput as a secondary benefit.
All models feature the most advanced ergonomic designs available, to speed maintenance and minimize downtime. With the push of a button, the entire chamber lowers for easy accessibility-no disassembly or expensive service calls for cleaning and maintenance. All electronic components are situated at eye level for easy and safe access.
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PC Series Large Continuous Production Ovens
Despatch Continuous Production Ovens are designed for process versatility and reliability. Typical applications include preheating, curing, bonding, drying and heat treating. Despatch provides you with the design integrity, emphasis on quality and manufacturing experience necessary to meet your heat processing needs.
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The atmospheric chamber furnaces built by Ipsen have a modular design and are made of standardised assemblies. The furnace casing consists of a sturdy sheet steel structure.
The light-weight refractory lining inside the furnace is designed for temperatures well above the working temperature and has an extremely long service life.
Because of their modular design, our furnace systems can be customized as necessary to meet the client's specific needs. The ICTE® software family developed especially for the heat-treatment industry allows charge transfer, loading and unloading to be linked to provide fully automatic systems that can be integrated perfectly into the production flow.
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Depending on the type of charge loading and workpiece geometry, there may be dead zones around the charge not seeing any flow or surfaces exposed to most of the cooling gas. To solve this problem, Ipsen has designed a rotary hearth for vertical furnaces whose speed of rotation can be adjusted in line with cooling requirements. This eliminates uneven gas flow distribution.
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Spirajoule is an electrically heated continuous flow heat treatment furnace that transports the product with a coreless screw. It is manufactured to provide optimal thermal transfer to a variety of finely divided wet and dry products.
The technology is based on ETIA’s exclusive patent of an electrically heated screw conveyor. The heat is generated by Joule effect which is obtained from a low voltage current applied directly to the coreless screw.
The auger lining is made of refractory material in order to provide a perfect and homogeneous heat transfer to the product as well as an optimal insulation of the furnace.
Maximum efficiency is achieved by the product's direct contact with the heated screw and radiation of energy from the refractory auger. Product dwell time, temperature up to 1000°C, and air extraction are easily adjusted. Full inspection of internal chamber also allows for easy cleaning. The injection of inert gases are also possible if required.
ETIA provides a wide range of Spirajoule models with several capacities.
Applications include: drying of minerals and industrial sludge, soil treatment, biomass pyrolysis, sterilization, and more.
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The conglobulating annealing furnace is the continuous furnace used to anneal parts of car, machine and electronics devices in order to improve the treatment and quality.
It is especially praised for economically dramatic energy reduction by transferring heat and flue gas generated from cooling pad and homogeneous pad to preheating pad to be used to warm up materials. It is classified to the roller hearth and the tray pusher depending on operational methods.
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Main use:
Furnaces type Bd are used for a variety of heat treatment applications requiring temperature up to 1150 °C in special cases to 1180 °C and a precisely controlled protective atmosphere, for example heat treatment and brazing of stainless steels.
All heat treatment applications indicated below are carried out under a suitable protective atmosphere so that parts remain bright and clean.
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The CuproBraze® process is mainly used for production of automotive radiators and large heat exchangers for specialized vehicles.
CuproBraze® furnaces provide:
* Low-cost production of light, durable and compact heat exchangers with a lead-free, environment-friendly and atmosphere-controlled brazing process.
* The brazed heat exchangers are clean and do not require washing. The brazing applied is high-strength and corrosion-resistant.
* Many methods of brazing application have been developed.
SECO/WARWICK offers the following furnaces:
* For semi-continuous production: compact dual- and triple-chamber furnaces.
* Continuous operation furnaces for a long-run production process, which enables brazing of various elements – recommended for diversified production.
Continuous-operation furnaces
Drawing on the design and production experience of SECO/WARWICK in convection (CAB C) furnaces, we have developed a high-performance furnace with belt conveyor for continuous brazing with the CuproBraze® technology. The system consists of a convection heating chamber, water-jacketed cooling chamber assembly, final air cooling station, and ACCUBRAZE PLC/PC computer control system.
This design enables continuous brazing of loads with different weights and dimensions. The versality of the furnace provides the optimum temperature for each element to be brazed.
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Design Features:
- Electric or gas heating.
- Gas-tight alloy muffle, for perfect furnace atmosphere control and low protective gas consumption.
- Choice of protective gas systems, for external supply or built-in generator, to suit all industrial requirements.
- Unique SAFED mesh belt drive system, with reciprocating hearth plate, for smooth parts transport and low belt wear.
- Automatic control of all process parameters, for versatility and reproducibility..
Operation:
Workpieces are loaded in bulk or positioned on the mesh belt at the loading station. They pass through several heating zones inside the gas-tight muffle to the chute and drop into the quench. The workpieces are then retrieved from the quench tank by a conveyor.
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Furnaces type T are designed for continuous hardening of mass produced steel parts.
Engineered for high precision and excellent reproducibility they meet the most stringent metallurgical requirements.
Typical heat treatment applications, at temperature
up to 950 °C:
- Hardening or case hardening, i.e. gas carburizing and carbonitriding with oil or polymer quench.
- Austempering and Martempering with salt bath quench.
- SAFED OXYCAD® ontinuous nitrocarburizing process.
All these treatments are carried out under controlled atmosphere.
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Thanks to its wide range of continuous furnaces, IVA is in a position to provide particularly powerful, economical systems for heat treating bulk batches of all kinds.
IVA conveyor-belt furnaces have been specifically designed for continuous hardening, carburising, carbonitriding and annealing bulk batches under inert gas. With capacities of up to 500kg per hour, these furnaces are designed to suit the needs of the specific application.
IVA conveyor-belt furnaces are highly reliable and economical. They are constructed so as to be easy to service and feature modern, light-weight insulating materials to maximise energy-saving.
Various additional components are available to adapt the furnaces to a number of applications and to automate them by stages. The following modules are available:
* Automatic workpiece feed
* Oil or water quenching tanks
* Warm salt tanks cleaning equipment
* Degreasing plant
* Gas feed plant
* Blacking tanks
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Continuous belt furnace
For drying screen printed, solvent-containing multilayer ceramic foils (Greenfoils). Channel length 4,5 m, width 1,0 m, 18 kW. The furnace can be designed according customser's requirements.
Product-ID: 87
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Can-Eng’s Mesh Belt Furnace Systems are field-proven leaders in reliability, fuel-efficiency and to production uptime. Standard capacities range from 250 lbs/hr to 7,000 lbs/hr. (100 kgs/hr to 3000 kgs/hr)
Processes available include sintering, clean hardening, light case carburizing & carbonitriding, austempering, and martempering.
Mesh belt lines are completely automated heat treating systems that include loading systems, washers, hardening furnace, quench, temper, soluble oil tanks and atmosphere generators.
As a leading producer of mesh belt furnaces, Can-Eng can deliver any or all of the components of a fully integrated system. And, our follow-up services and factory support is engineered to set the standard for the entire furnace industry.
•Continuous production that delivers superior quality
•Standard capacities from 100 kgs/hr to 3000 kgs/hr
•Superior part quality capabilities
•Proven field reliability
•Maximum fuel efficiency through innovative design and energy recuperation
•Carburizing capabilities
Applications: Fasteners, Stampings, Bearings, Machined components, Automotive parts, Hand tools
Processes: Clean Hardening, Light case carburizing and carbontriding, Austempering and martempering
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Main use:
Furnaces type BdL are mainly used for tempering steel parts under air circulation, after hardening. Other uses are indicated below.
Heat treatment of steel:
- Tempering.
- Annealing.
- Stabilizing.
- Ageing.
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Main use:
Furnaces type T are designed for continuous hardening of mass produced steel parts.
Engineered for high precision and excellent reproducibility they meet the most stringent metallurgical requirements.
Typical heat treatment applications, at temperature
up to 950 °C:
- Hardening or case hardening, i.e. gas carburizing and carbonitriding with oil or polymer quench.
- Austempering and Martempering with salt bath quench.
- SAFED OXYCAD® ontinuous nitrocarburizing process.
Hardening furnaces type T for austempering and martempering applications. The hardening furnace type T may be equipped with a salt quench tank designed for molten salt up to 400 °C.
Quench tank type GS:
The tank has thermal insulation and a heated hood over the discharge conveyor to keep parts at temperature. Heating and cooling systems are provided for heating up and holding the salt at the required temperature.
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Can-Eng’s Chain Conveyor Furnace Systems are ideal for conveying heavy loads with high loading densities, such as leaf and coil springs, bars, tubes, forgings, castings, lift truck forks and suspension components.
Can-Eng produces a variety of belt configurations with a combination of cross flight or mesh combinations and offer a wide variety of loading systems for different applications. Processes include ageing, tempering and sub-critical annealing.
•Ideal for conveying heavy loads with high loading density
•A variety of belt configurations with a combination fo cross flight or mesh combinations
•Suitable for temperatures up to 750°C
•Positive sprocket drive systems
Applications: Bars, Castings, Forgings, Leaf springs, Lift Truck Forks, Suspension components, Tubes
Processes: Ageing, Tempering and Sub-critical Annealing
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Main use:
Furnaces type BdT are used for tempering steel parts at temperatures up from 650 °C, where a protective atmosphere is required.
Design Features:
- Electric, depending on application.
- Gas-tight alloy muffle, for perfect furnace atmosphere control.
- Variable drive of mesh belt for process time adjustment.
- Equipped with quench tank for fast cooling and/or blackening.
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Continuous heat treatment lines
1. Paternoster furnace for crankshaft stress relieving
2. Stress relieving roller furnace
3. Stress relieving conveyor furnace
4. Automatic line for polymerization of motorcar hoods
5. Roller furnace for atmospheric heat treatment
with oil quenching bath
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Pusher furnaces ELTERMA S.A. Seco/Warwick Group Poland are the optimum design solution for the heat treatment and heat-chemical treatment processes of mechanical components for mass and high volume production.
Complete unit consists of:
- electrically or gas heated heating chamber
- the chamber of load cooling to the ambient temperature and the loading and unloading devices .
Both the whole transport of the load inside the furnace and the other functions are fully automatic, controlled by the programmable logical controller and the computer system enables to archive and identify individual load according to strict standard requirements for the automotive industry.
Elterma S.A. offers product with optimal solution of the chamber for controlled cooling of the load, the critical value for the whole heat treatment process of the components. Combined transport system of the load in the furnace consisting of the hydraulic pushers and chain pushers meets the optimal requirements as for the quality of the operation, reliability and gives more free room in the shop floor.
For more information please contact:
B.Tustanowska@elterma.com.pl
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Can-Eng’s Roller Hearth Furnace Systems are workhorses for heat treating a great variety of materials. Whether you are annealing, bright annealing, normalizing, reheating, stress relieving or tempering, Can-Eng furnaces deliver consistent quality and reliable performance.
•Excellent for atmosphere and non-atmosphere heat treating
•Capacity up to 80,000 lbs/hr
•Flexible processing capabilities
•Excellent uniformity part to part
•Suitable for long product processing
•Recuperative and regenerative burner designs available for fuel efficiency
•Both direct and indirect-fired combustion systems are available
•Versatile product conveyance.
•Rolls allow for direct product loading or the use of fixtures and trays.
•High alloy heat resistant cast rolls
•Uniform temperature in heating chamber.
•Capacity up to 80,000 lbs./hr. (37,000 kgs/hr.)
•Combined over/under hearth firing available
•A wide range of protective atmospheres are available
•A variety of convective heat transfer fans are available
Applications: Carbon steels, Tool steels, Aluminum, Alloy steels, Stainless steels, Brass, Copper
Processes: Bright annealing, Stress relieving, Annealing, Normalizing
Quench and Temper, Reheating, Tempering
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Rotary hearth furnaces ELTERMA S.A. Seco/Warwick Group Poland are used mainly in the following processes:
- Hardening
- Annealing
- Preheating before forging
- Preheating before hardening in the press.
ELTERMA S.A. manufactures the wide range of furnaces with a rotary hearth:
- in electrical and gas fired version
- for load up to 1.000 kg gross weight
- with manual and automatic loading of the charge.
ELTERMA S.A. rotary hearth furnace can be used in all processes where it is required the very good temperature distribution in the heating chamber and if the Customer needs the high capacity of the process at limited space of workshop.
For more information please contact:
B.Tustanowska@elterma.com.pl
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Rotary retort continuous furnaces are used to harden, carburize and carbo-nitride relatively small parts. Automatic loading and unloading make the continuous rotary retort system well suited for high production requirements. Selas rotary retort furnace systems are especially efficient in the production heat treating of automotive fasteners, ball and needle bearings, bolts, roller chain, nails, nuts, screws, sockets, and washers.
STANDARD MECHANICAL FEATURES
Fabricated alloy retort with load-conveying flights
Externally mounted retort support rollers
Gasketed removable rear plug assembly
Load feeder chute with flame deflector and continuous atmosphere ignition pilot
Atmosphere inlet and sample ports
Sight port for visual check of discharge
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Can-Eng Continuous Steel Bar Heat Treatment Systems have fully integrated hardening, quenching and tempering for high volume and continuous production up to 40,000 lbs per hour of long products.
Their unique spray quenching systems maintain bar straightness and provide for extremely uniform metallurgical and mechanical properties.
•Hardening or heating for hot working
•Capacity up to 40,000 lbs/hr
•Fully integrated hardening, quenching and tempering
•Unique spray quenching system
•Continuous bar rotation
•Greater bar yield
Applications: Bars, Tubes, Carbon Steel , Alloy Steel, Stainless Steel
Processes: Normalize, Quench and Temper, Solution Anneal, Stress Relieve
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Small shaker hearth furnaces type Vi are mainly used for hardening parts that, because of their small size, would cause handling problems on a mesh belt or when production volume is too small to justify the use of a mesh belt furnace.
This type of furnace is ideally suited for watch parts, fine mechanical parts, sewing and knitting needles and similar.
Typical heat treatment applications, at temperature up to 950 °C include:
- Hardening or case hardening, with oil or polymer quench.
- Austempering and Martempering with hot oil or salt bath quench.
- All these treatments are carried out under controlled atmosphere
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With this furnace type the goods to be heated are transported through the furnace either lying on a conveyor unit, in a standing or hanging fashion, and are subjected to a precisely defined temperature profile.
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Can-Eng’s Walking Beam Furnace Systems heat treat up to 80,000 lbs per hour of both symmetrical and non-symmetrical parts.
•Hardening or heating for hot working
•Capacity up to 80,000 lbs/hr
•Symmetrical and non-symmetrical parts
•Longitudinal or side fire design
•Excellent uniformity part to part
•Reliable and efficient
•Combined over/under beam firing available
•Capable of moving a variety of symmetrical and non-symmetrical parts directly or using fixtures
•Uniform temperature across width of heating chamber
•Recuperative and regenerative burner designs are available for fuel efficiency
•Human-Machine Interface (HMI) and Supervisory Control and Data Acquisition (SCADA) Systems are available.
•Precise rectilinear motion for exact part location at discharge.
•Nominal capacity up to 80,00 lbs/hr.(37,000 kgs/hr)
Applications: Leaf Springs, Coil Springs, Plates/blades, Bars
Tubes, Fixtured components, Billets, Blooms, Lift truck forks, Custom profiles
Processes: Hardening and tempering, Heating for hot working, Annealing,
Stress relieving
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The quality continuous heating furnace of Hanwha techM is the essential equipment for rolling iron related products.
Especially, the walking beam type heating furnace improves the quality of rolling products and reduces the fuel per square meters.
It is generally known that the walking beam type heating furnace is proper to the medium and large-sized equipment only, but it turns out to show excellent operating efficiency, security, and durability even in a small furnace with 20~30 tons /hour.
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Technical data :
• Treatments: tempering, annealing, brazing, brazing of precious metals, hardening of stainless steel with 13% of chromium, overhardening, sintering, recrystallization.
• Temperature up to 1'100°C.
• Useful length of the heated zone from 100 to 800 mm.
• Useful height : from 45 to 200 mm.
• Heated lenght: from 800 to 8000 mm.
• Material: steel, stainless steel, copper, precious metals
• Atmospheres : nitrogen, Hydrogen, Air, Argon, Cracket Ammonia, N2+H2 mixture, endothermic gas.
Process control and supervision by our partner AXRON Swiss Technology (www.axron.com)
Accessories for compact furnaces: gas mixer, ammonia crackers, pressure reducer, water cooler, supervision with PC...
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