Technologies

Hauck Heat Treatment operates processing facilities in strategic locations around Europe, enabling us to offer all types of heat treatment processes. Our facilities are closely interlinked in terms of logistics, which means that all processes are available to you even if the specific process you seek is not available at the nearest Hauck Heat Treatment location.

At Hauck Heat Treatment we have divided our processes into five core technologies, which are listed below. Selecting a process leads to a description.

Other than the well-known processes, we also offer several unique treatment such as StainihardNitrotec and HD Brazing. Each of these processes improves the material or the component and is generally used in a specific application in markets such as automotive or aerospace.

The technologies we offer in our group companies in the Netherlands are listed below. For a complete list of technologies we offer as Hauck Heat Treatment group, please check our general website: www.hauckht.com.

Thermal Processes

Technology

Hardening

Hardening is the heating and subsequent cooling of steel at such a speed that there is a considerable increase in hardness, either on the surface or throughout. In most cases hardening takes place in conjunction with subsequent reheating, the annealing.

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Technology

Sub-Zero Treatments

Sub-Zero Treatments are processes where the products are treated at a temperature below zero degrees Celcius. The treatment can be an additional step in the hardening process to reach optimal results in hardness and structure of the material or can be part of an aging process.

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Technology

Annealing

Annealing processes serve to influence the structure of the material or to reduce internal tensions. These processes are done at temperatures up to approximately 1150°C.

  • In vacuum
  • In Protective Atmosphere
  • In Air

 

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Thermochemical Processes

Technology

Carburizing / Carbonitriding

Case hardening is a thermo-chemical process. Within the framework of this process, the surface layer of components is enriched with carbon (carburisation) or carbon and nitrogen (carbonitriding), in order to improve the mechanical properties of the component surface layer. For both process variants, various plant technologies, such as chamber furnaces, through-type furnaces, salt baths, low pressure systems etc., are available.

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Technology

Nitriding / nitrocarburizing

All the nitriding and nitrocarburising processes of the HAUCK Group share the designation NITAI® . Nitriding and nitrocarburising improve the mechanical properties of component surface layers.

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Technology

Nitrotec®

Nitrotec® is a worldwide trademarked surface engineering process for the treatment of steels and cast irons carried out in the temperature range of 590 -740°C using a gaseous nitrogen bearing atmosphere.

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Technology

Stainihard®

Stainihard® NC is a process to harden the surface of (austenitic and duplex) stainless steel, without having a negative effect on its corrosion resistance. In some cases this is even improved.

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Brazing

Technology

High Temperature / Vacuum Brazing

Vacuum Brazing is a process that creates high quality joints under temperatures from about 800°C to 1150°C in a vacuum atmosphere. This also allows for the joining of different materials like for example ceramic to steel.

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Technology

Aluminium Brazing

Brazing of Aluminium is a complex process, at Hauck Heat Treatment we can offer several solutions for specific applications.

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Technology

Belt Furnace Brazing

Belt Furnace Brazing is a cost-efficient and continuous process that simultaneously applies brazing joints to relatively high volumes of components.

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Thin Layer Processes

Technology

Physical Vapour Deposition (PVD)

Physical reactions occur from a plasma, which means that exactly through these reactions at very low temperatures (starting at room temperature), layers can be added. PVD can also be applied to all solid materials that you can think of, metal, ceramics, glass as well as plastics.  These techniques originate combinations with unique properties.

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Technology

Chemical Vapour Deposition (CVD)

The unique properties of the CVD process of Hauck Heat Treatment The Netherlands consist in this process with a very high penetration rate, so that everywhere on a provided surface a layer is created (even in the hair cracks). Also on undercuts and even on more complex geometrical shapes such as metallic foams and the like. The CVD process is generally used to add an improved wear resistance, corrosion resistance or increased friction properties to a component.

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