General Heat Treatment

In industry many materials and finished products, as part of their manufacturing process, are taken through a heat treatment process. This process is critical to provide the product with the necessary physical properties for its intended use and ensure safe, reliable operation over the working life of the product.

Heat treatment comes in different forms dependent on the material whether glass, metal or even ceramics, polymer or composite materials;

Some typical heat treatment applications


  • Windscreen Forming, Tempering & Laminating
  • Bottle and Glass Annealing


  • Steel Springs / Coils Hardening and Tempering
  • Railway Wheel Hardening
  • Motor lamination Annealing
  • Aluminium Brazing (CAB & Vacuum)


  • Automotive or Aerospace lamination of composite materials

For successful heat treatment it is essential that the process is monitored and controlled to confirm that the product experiences the correct temperature, change in temperature and for the correct length of time.

 Product Temperature Profiling

  • Product temperature is monitored throughout the process. 

Temperature Uniformity Survey

  • Process operation is validated independently of the product. The furnace operating performance is tested at set temperatures against critical thresholds (CQI-9 and AMS2750).

Historically processes have been profiled or surveyed using the method of trailing thermocouples. Although possible in many applications the process is difficult, labour intensive and is limited in the information it provides. Overcoming such issues, the PhoenixTM thru-process temperature profiling system is a perfect alternative. The data logger measuring the process information is passed through the process protected from the process conditions (heat, pressure, atmosphere and quench) by a thermal barrier designed specifically for the specific application.

For general heat treatment processes PhoenixTM offer a range of thermal barrier solutions of different thermal performances but also different constructions to suit different application demands and space limitations. The thermal barriers are designed to keep the PTM1200 data logger at a safe operating temperature using a combination of microporous insulation and heat sink phase change technology. The systems are complemented by the Thermal View Software packages for full review, analysis and reporting of profile data and TUS work. Thermocouple options can be selected from our comprehensive range to meet all application challenges or specification requirements.

TS01 Application image
PhoenixTM System – TS01 up to 800 °C

HTS01 Heat Treatment up to 800 °C

Developed for heat treatment processes up to 800°C the PhoenixTM General Purpose Furnace Profiling System is perfect for applications such as windscreen bending, glass container annealing, steel spring tempering, aluminium brazing, etc. in the aluminium, glass, steel, and general heat treatment industries.

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PhoenixTM System TS02 up to 1000 C
PhoenixTM System – TS02 up to 1000 °C

HTS02 Heat Treatment up to 1000 °C

Temperatures up to 1000 ° C, carburizing atmospheres and high temperature gradients place very high demands on the thermal barrier. Based on the TS01 systems, PhoenixTM has developed the TS02 series with special materials and a complex design to minimize distortion that meet these requirements for product profiling and TUS(CQI-9 & AMS2750).

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Phoenix Content 0029 Behalter Offen mit PTM1220
PhoenixTM System – TS03 up to 1200 °C

HTS03 Heat Treatment up to 1200 °C

Processes at temperatures over 1000 °C such as vacuum carburizing with high pressure gas quenches demand a high performance Thermal Barrier. A system must be capable of withstanding the rigours of thermal cycling and pressure changes to eliminate structural damage, shrinkage of insulation or distortion of metal work. PhoenixTM TS03 Thermal Barriers are designed to offer full protection to the data logger in these demanding conditions.

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