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vacuum hardening

Aalberts surface technologies > processes > vacuum hardening
what is vacuum hardening?
the process
fields of application
groundbreaking industries
locations & contact

what is vacuum hardening?

Vacuum hardening is the hardening of components under a controlled partial pressure, during which temperatures of up to 1,300°C can be reached. The aim of this process variant is the creation of bright metallic workpiece surfaces which render further mechanical processing unnecessary.

the process

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 the case of vacuum hardening, this process is done in vacuum furnaces in which temperatures of up to 1,300°C can be reached. The quenching methods will differ with regards to the material treated but gas quenching using nitrogen is most common.

In most cases hardening takes place in conjunction with subsequent reheating, the tempering. Depending on the material, hardening improves the hardness and wear resistance or regulates the ratio of toughness to hardness.

fields of application

Practically all technically interesting steel alloys, such as spring steels, cold-worked steels, quenched and tempered steels, anti-friction bearing steels, hot-worked steels and tool steels, as well as a large number of high-alloy stainless steels and cast-iron alloys, can be hardened.

 

Vacuum hardening however, is mostly used for high-alloy steels and steels that require a bright metallic workpiece surface.

groundbreaking industries we serve

Tool Manufacturing
tool manufacturing
aerospace industry
aerospace
aalberts surface technologies automotive
automotive
Kerpen Hard anodizing
engineering industry

process locations

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

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heat treatment
heat treatment

Blackburn

United Kingdom
53.7642256-2.4548116 info.blackburn@aalberts-st.com +44 1254 264901 show location
heat treatment

Letchworth

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

Pinto

Spain
40.2523494-3.7105911 info.madrid@aalberts-st.com +34 916 923 330 show location
heat treatment

Atxondo (Pais Vasco)

Spain
43.136701799453-2.5944685935974 info.paisvasco@aalberts-st.com +34 946215590 show location
heat treatment

Telford

United Kingdom
52.7205556-2.4701772 info.telford@aalberts-st.com +44 1952 677372 show location
heat treatment

Venlo (Lomm)

the Netherlands
51.44642316.1786697 info.venlo@aalberts-st.com +31 77 308 1333 show location
HIP I brazing I additive

Goffstown (New Hampshire)

United States
42.9936399-71.5222791 info@accuratebrazing.com (603) 945-3761 show location
HIP I brazing I additive

Greenville (South Carolina)

United States
34.8319956-82.2940535 info@accuratebrazing.com (864) 213-9310 show location
heat treatment

Kalisz

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

Eindhoven

the Netherlands
51.47035245.419001 info.eindhoven-heat@aalberts-st.com +31 40 266 3000 show location
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