TeknoVak

TeknoVak Industrial Furnace Systems Inc. (Turkey) develops and manufactures industrial furnaces and systems for metal heat treatment processes.
The company delivers turnkey projects, from engineering design and calculations to manufacturing, installation, commissioning and process development.

Fields of application: aviation, automotive, defense industry, power generation, general engineering, chemical and petrochemical industries.

TeknoVak product range

TeknoVak manufactures:

1. Modular bell-type lines (AGS series) for hardening, tempering, carburizing, carbonitriding, annealing and austempering with various quenching media such as salt, oil, water, polymer and gas.
2. Gas nitriding furnaces with KN control — horizontal (YGN series) and vertical (DGN series).
3. Aluminum heat treatment furnaces for the T6 process.
4. Cryogenic systems (CRYO series) for low-temperature processing, including applications in the aviation and automotive industries.
5. Auxiliary systems including ammonia crackers, gas supply and control panels, waste gas neutralization systems and other line components.

1. Modular bell-type lines (AGS series)

TeknoVak modular bell-type lines are designed for a wide range of heat treatment processes, including hardening, tempering, carburizing, carbonitriding, annealing and austempering. These systems make it possible to carry out heat treatment in a controlled atmosphere and transfer the workload directly into the quenching medium while minimizing contact with the ambient atmosphere.

The lines are modular in design and can be expanded according to the required productivity and the type of parts being treated. Additional furnaces, quench tanks and auxiliary stations can be integrated into the line as needed.

Description:

• The systems are based on a bell-type furnace with independently operating stations and direct transfer of the workload into the quenching medium.
• Transfer from the furnace to the quench tank is performed by a simple sliding system without gripping mechanisms.
• Transfer time from the furnace to the quench tank is typically 10–40 seconds.
• Maximum operating temperature reaches up to 1100°C

Main features:

• Compatibility with different quenching media allows a wide variety of furnace and quench tank combinations.
• Existing lines can be expanded according to new production requirements.
• The systems are especially suitable for small and medium production batches requiring flexible heat treatment parameters.
• They are well suited for thin-walled and long parts that are sensitive to distortion.
• During quenching, the workload is transferred under protective atmosphere with minimal temperature loss.
• Furnace systems can operate in manual or fully automatic mode.

Applicable processes:

• Austenitizing (hardening)
• Carburizing
• Carbonitriding
• Nitriding, carbonitriding and oxidation
• Annealing, tempering and brazing
• Heat treatment up to 1100°C
• Annealing and ageing
• Processing in argon atmosphere for titanium alloys

Examples of standard sizes:

2. Gas nitriding furnaces with KN control — horizontal (YGN series) and vertical (DGN series)

The YGN series includes horizontal gas nitriding furnaces designed for controlled nitriding and nitrocarburizing processes. These furnaces are suitable for a wide range of parts and can be equipped with additional options depending on process requirements.

Examples of specifications

2.1. Vertical gas nitriding furnaces (DGN series)

The DGN series includes vertical gas nitriding furnaces with KN control. These systems are selected according to workshop conditions, part geometry and part weight, and can be configured with different automation levels.

Examples of standard sizes:

3. Aluminum heat treatment furnaces (T6)

TeknoVak aluminum heat treatment furnaces are designed for the T6 process and are available in several standard sizes. The equipment is selected according to part dimensions and the required productivity of the production line.

These furnaces are engineered to ensure stable heat treatment conditions, rapid transfer to quenching and reliable process control.

Examples of standard sizes:

4. Cryogenic systems (CRYO series)

TeknoVak cryogenic systems are designed for low-temperature treatment as a continuation of the heat treatment process. Their purpose is to reduce retained austenite, support martensitic transformation and improve dimensional and structural stability of treated parts.

The systems are designed as controlled chambers or retorts and are suitable for applications in the aviation, automotive and tooling industries.

Main features:

• Stange control system for cooling and heating;
• Vacuum-insulated body and cover for minimal thermal losses;
• Double-wall retort;
• Recipe storage and recording system;
• Pressure and flow control with low nitrogen consumption;
• High process repeatability;
• Temperature uniformity of ±5°C;
• Safety fittings;
• Nitrogen atmosphere during tempering;
• No corrosion or discoloration of parts;
• Maximum pressure: 2 bar;
• Operating pressure: 100–500 mbar;
• Operating temperature: from −150°C to +250°C;
• Optional heating up to 620°C

5. Auxiliary systems (control panel, gas supply / gas control panels, waste gas neutralization and other lines)

As part of its complete solutions, TeknoVak also supplies a range of auxiliary systems integrated into nitriding, carburizing and heat treatment lines.

• STANGE-Carbo-DIS, an electronic control and automation system with recipe management compliant with AMS standards.
• Atmosphere control with O₂ sensor.
• Low-CO level control with H₂ sensor.
• Online monitoring and process data recording system.