carbonitriding
what is carbonitriding?
Carbonitriding is a thermo-chemical process. Within the framework of this process, the surface layer of components is enriched with carbon and nitrogen, in order to improve the mechanical properties of the component surface layer. For this process, there are various furnace technologies, such as chamber furnaces and continuous furnaces.
the process
As a rule, carbonitriding comprises three working steps. In the first step, the workpieces are exposed to a carbon and nitrogen rich environment at a temperature of 750 to 900 °C. In the second step, the quenching takes place after the workpiece was exposed to the target temperature for a certain time. The third step, the tempering treatment serves essentially to relieve the highest stresses in the material structure and to reduce sensitivity to grinding cracks.
fields of application
Carbonitriding results in a very hard case of the component. Specifically, this is useful in the case hardening of gears and similar components which are subject to a great deal of wear in hostile environments. This heat treatment process is especially useful if there is a requirement for a hard, wear resistant surface, overlying a much softer and tougher core. A good example for its application is a gear wheel. The surface of the teeth needs to be extremely hard so that they can withstand constant metal-to-metal contact, without undue wear. The underlying material needs to be tough so that the teeth can tolerate occasional impact loads, without the risk of fracture.
Carbonitriding is used to give a hard case onto the cheapest steels which are often not capable of being case hardened because of their chemical composition. The carbonitriding process is applied to low carbon and mild steels and results in less distortion than traditional carburizing techniques.
groundbreaking industries we serve
process locations
Any questions? Contact us directly or select a process location near you.
Blackburn
United Kingdom 53.7642256-2.4548116 info.blackburn@aalberts-st.com +44 1254 264901 show locationLetchworth
United Kingdom 51.9887569-0.2038797 info.letchworth@aalberts-st.com +44 1462 472100 show locationVärnamo
Sweden 57.176705814.0107878 info.nordic@aalberts-st.com +46 370 69 09 90 show locationVenlo (Lomm)
the Netherlands 51.44642316.1786697 info.venlo@aalberts-st.com +31 77 308 1333 show locationVermondans
France 47.38966236.7607384 info.vermondans@aalberts-st.com +33 381 9645 85 show locationWerther
Germany 52.085558.42509 info.werther@aalberts-st.com +49 5203 97405 show locationRemscheid
Germany 51.22193897.2353813 info.remscheid@aalberts-st.com +49 2191 56200 show locationSoudan
France 47.7059027-1.3208699 info.soudan@aalberts-st.com +33 228040600 show locationGaildorf
Germany 49.01621959.7588191 info.gaildorf@aalberts-st.com +49 7971 96980 show locationKehl
Germany 48.500157.82006 info.kehl@aalberts-st.com +49 7854 96470 show locationLaupheim
Germany 48.229769.83458 info.laupheim@aalberts-st.com +49 7392 70960 show locationAmboise
France 47.41544421.0245775 info.amboise@aalberts-st.com +33 247 2374 74 show locationDunningen
Germany 48.2249668.5003521 info.dunningen@aalberts-st.com +49 7403 92907-0 show locationDzierżoniów
Poland 50.732931316.6280222 info.dzierzoniow@aalberts-st.com +48 515 739 056 show locationUnsere Verfahren
Wir bieten weltweit alle Arten von Wärmebehandlungsprozessen an. Unsere Anlagen sind logistisch eng miteinander verknüpft, so dass Ihnen alle Verfahren zur Verfügung stehen. Erfahren Sie mehr zu unseren Wärmebehandlungsverfahren.
Heiß-Isostatisches Pressen (HIP) dient der Beseitigung von Porosität. Sie benötigen bei Lötverbindungen eine hohe mechanische Haltbarkeit und Unempfindlichkeit bei hohen Temperaturen? Wir bei Aalberts surface technologies bieten die Lösung durch Hartlöten (brazing).
Polymerbeschichtungen können auf viele Grundmaterialien aufgebracht werden und bieten lang anhaltenden Schutz. Sie sind mechanisch besonders gut mit dem Untergrund verankert und bieten verbesserte Gleiteigenschaften und/oder hohe Verschleißfestigkeit.
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Fast alle metallischen Grundwerkstoffe können mit unseren selbstentwickelten und patentierten Verfahren durch Oberflächenbeschichtungen in ihren Eigenschaften optimiert werden, egal ob sie besonders hart, glatt, verschleißfest oder korrosionsbeständig sein sollen.
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We 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. For a complete list and description of heat treatment technologies please select the button.
Hot isostatic pressing (HIP) is used to eliminate porosity. Do you need high mechanical durability and insensitivity to high temperatures for solder joints? We at Aalberts surface technologies offer the solution through brazing.
Polymer coatings can be applied to a wide variety of base materials and offer long-lasting protection. They are particularly well anchored mechanically to the substrate. Additional enhancement layers allow non-stick coatings to be combined with improved sliding properties and/or high wear resistance.
With 40 years of experience in continuous reel to reel finishing, you can depend on Aalberts surface technologies to find innovative solutions that other companies might say are impossible. Our service includes barrel plating, continuous selective plating and rack plating.
Almost all metallic base materials can have their properties optimised by surface coatings using our proprietary and patented processes, regardless of whether they should be particularly hard, smooth, wear-resistant or corrosion-resistant.