Kraftwerk
Kraftwerkstechnik

Power Plant Technology

Wear protection For power plant technology

Abrasion, cavitation, cold welding and high-temperature wear caused by water vapor. Depending on the power engineering environment, wear is primarily caused by mechanical, chemical or thermal stress. Boronizing with BOROCOAT® is a universally applicable treatment method for a wide range of components.

Solutions

  • Laufrad boriert
    BOROCOAT®

    Boronizing

  • Dampfregelarmatur
    NITRIDING

    and Nitrocarburizing

Borocoat® protects against:

Abrasive wear
Cavitation
Hot gas corrosion

Nickelcoat® protects against:

Cavitation

FIND THE RIGHT SOLUTION!

Let our professionals advise you – from material selection to optimum wear protection.

GET PERSONAL ADVICE

Drew

Our solutions in use

Impeller
Steam Control Valve
Impeller
Middle and high alloyed steels

BOROCOAT®

Boronizing improves the surface hardness and wear resistance of impellers for hydropower plants.

Laufrad boriert
Steam Control Valve
Middle and high alloyed steels

Nitriding

Steam control valves in power plants are protected against seizure and cavitation by nitriding.

Dampfregelarmatur

Borocoat® & Nitriding – materials

Suitable steel grades and special alloys

    • Nitriding steel
    • Cast steel
    • Heat resistant steel
    • Quenched and tempered steel
    • Corrosion resistant steel
    • Inconel®, Hastelloy®, Haynes®

Weitere Informationen

Data Sheet

BOROCOAT®
Information about the process

(PDF, 1 MB)
Technical Recommendations

BOROCOAT®
Tips for successful heat treatment

(PDF, 64 KB)
Data Sheet

NITRIEREN
Information about the process – coming soon

(PDF, 7 KB)
Technical Recommendations

NITRIEREN
Tips for successful heat treatment – coming soon

(PDF, 7 KB)
  • Boronizing and nitriding in power plant technology

    Power plant technology is a demanding engineering discipline. Continuous innovations are necessary to provide energy for a modern industrial nation. The demands on efficiency and environmental compatibility combined with a long service life of the components are high. At the same time, the wear and tear of the components used represents a major challenge in power plant engineering. In large, modern plants, enormous forces act on the components involved. Depending on the technology, such as hydropower, lignite, wind power or gas-fired power plants, different problems are caused by wear. Frequently, problems are caused by abrasion, cavitation, cold welding and high-temperature wear due to water vapor.  Depending on the power engineering environment, wear is primarily caused by mechanical, chemical or thermal stress. The question for the engineer is how to extend maintenance cycles while maintaining operational reliability. Boronizing with BOROCOAT® is a universally applicable treatment method for a wide range of components.

  • Wear in power plants

    Control valves, steam-converting valves, spray coolers, burner nozzles and metering devices in power plants are subject to complex stress systems in conjunction with high pressure and temperature. The combination of heat- and corrosion-resistant steels (e.g. 1.4922) with BOROCOAT® diffusion coatings makes it possible to ensure wear protection even at very high temperatures.
    In the power plant sector, low-alloy steels are preferably used in metering systems. Boride layer thicknesses of over 200 µm ensure effective wear protection. Steam control valves are exposed to high temperatures and pressures. Heat-resistant austenitic and ferritic steels, stainless steels and superalloys such as Inconel® are used. BorTec offers suitable boronizing processes for all the above materials to increase wear protection. After BOROCOAT® diffusion coating, the desired basic strength of the steel can be precisely adjusted by vacuum quenching and tempering.

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