Aalberts surface technologies > processes > vacuum carburizing (LPC)
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vacuum carburizing (LPC)

Aalberts surface technologies > processes > vacuum carburizing (LPC)
what is LPC?
the process
fields of application
groundbreaking industries
locations & contact

what is low pressure carburizing?

Low Pressure Carburizing (or Vacuum Carburizing as it is also known) provides a clean, modern approach to carburizing. This heat treatment which requires real precision, is one delivering low distortion of the original component whilst carburizing is achieved.

the process

Vacuum (low pressure) carburizing is an alternative technology to traditional gas (atmospheric) carburizing. Thus, it is a thermo-chemical treatment consisting of heating steel parts to temperatures usually in the range of 900-1000°C and heating them to a carburizing atmosphere. The purpose of carburizing is to enrich the surface layer with carbon and, consequently, increase its hardness and abrasion resistance while maintaining malleable core. Immediately after carburizing, hardening and tempering are most often performed, however, unlike traditional carburizing, it has a number of advantages resulting from both the used carrier gases – carburizing (C2H2 – acetylene), and the environment in which it is carried out – a vacuum furnace. Environmentally friendly – no CO2 emissions.

Low Pressure Carburizing (LPC)
Turbine Gear parts for Low Pressure Carburizing

fields of application

Especially tool steel benefits from low pressure carburizing as the process delivers extremely long wearing surfaces, ideal for tooling operations.

The main advantages are:

  • No oxidation at the grain boundaries (No IGO)
  • Narrower range of CHD carburizing layer tolerance – smaller scatter of results
  • Stability and repeatability of results
  • Accurate carburizing of narrow holes, including blind holes
  • Minimization of quenching deformations – resulting from the use of gas as a quenching agent
  • Increasing the production efficiency by the possibility of carrying out processes at higher than traditional temperatures, i.e. 980 ° C and higher.
  • Clean surface of details (silver metallic), no scale
  • Environmentally friendly – no CO2 emissions

groundbreaking industries we serve

Tool Manufacturing
tool manufacturing
aerospace industry
aerospace
aalberts surface technologies automotive
automotive
medical industry
medical

process locations

Any questions? Contact us directly or select a process location near you.

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heat treatment
heat treatment

Letchworth

United Kingdom
51.9887569-0.2038797 info.letchworth@aalberts-st.com +44 1462 472100 show location
heat treatment

Kalisz

Poland
51.736470518.03159 info.kalisz@aalberts-st.com +48 798 804 003 show location
heat treatment

Dunningen

Germany
48.2249668.5003521 info.dunningen@aalberts-st.com +49 7403 92907-0 show location
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