technique that ensures the material is highly wear-resistant
salt bath hardening
what is salt bath hardening?
Salt Bath Hardening can offer advantages over alternative hardening and tempering methods. Molten salt is often considered the ‘ideal’ heat treating medium. When parts are immersed in the molten salt, heat is transferred by direct contact to the surface.
the process
Salt bath hardening is a hardening technique that ensures the material is highly wear resistant. For this purpose, the component is first brought to the required austenitizing temperature in a molten salt in multiple stages. The supply of temperature takes place evenly and the time at temperature is very short. This is followed by quenching in a hot bath at approximately 550°C.
The advantage of the process is that a fast and intensive heat transfer is possible, which supports a quick and flexible way of working.
fields of application
Since the parts are immersed in the Salt Bath, air cannot contact the work piece and scaling, oxidation and decarburization are avoided. Heat transfer into components is very rapid – much faster than with radiation or convection methods. Additionally, the uniform rate of heat transfer permits components having complex geometries and diverse cross-sections to be heat treated and quenched with minimal distortion. Salt Bath Hardening is ideal for Tool Steels.
Gears, shafts, machine parts and tools are often hardened in a salt bath. Partial hardening as well as the individual hardening of materials can easily be carried out with salt bath hardening.
groundbreaking industries we serve
process locations
Any questions? Contact us directly or select a process location near you.
Laupheim
Germany 48.229769.83458 info.laupheim@aalberts-st.com +49 7392 70960 show locationWerther
Germany 52.085558.42509 info.werther@aalberts-st.com +49 5203 97405 show locationLetchworth
United Kingdom 51.9887569-0.2038797 info.letchworth@aalberts-st.com +44 1462 472100 show locationAtxondo (Pais Vasco)
Spain 43.136701799453-2.5944685935974 info.paisvasco@aalberts-st.com +34 946215590 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.
Mit 40 Jahren Erfahrung in der kontinuierlichen Veredelung von reel to reel können Sie sich auf Aalberts surface technologies verlassen, um innovative Lösungen zu finden. Unser Service umfasst Trommelgalvanik, kontinuierliche selektive Galvanik und Gestellgalvanik.
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.