Updated: Monday the 21^st of July, 2008 Summitglow Ltd

Case Hardening/Carburising

In addition to conventional through hardening of components we can also case harden all suitable steels in either salt or sealed quench atmosphere.

Sealed Quench (Atmosphere) Heat Treatment

To serve the need for larger batches of tool steel and sinter metal components Sealed Quench (Atmosphere) Furnaces have been introduced to our facility.

Continuous Mesh Belt Furnaces

To enable us to process medium, small and micro components we use SAFED mesh belt conveyer furnace's. In these furnace's we can both through harden and case harden

In all circumstances a uniform consistency is achieved between batches, with none of the 'masking' resulting in varying hardness associated with other methods.

 A huge variety of small components can be processed in a wide range of materials. Hardening and case hardening temperatures of up to 900 degrees centigrade can be reached, with a maximum achievable case depth on case hardened parts of around 0.015".

All quenching is in oil.

 Vacuum Hardening

Our most recent investment to date is the introduction of vacuum hardening, this process provides for a completely clean component after treatment with minimum levels of distortion and movement.

The control of the process uses the latest PC technology, controlling furnace temperature with two thermocouples and the actual temperature of the work being treated using up to four thermocouples.  Charts and graphs can be printed off and supplied on request to accompany any other certification.

Nitriding/Nitrocarburising

In simple terms the result is a nitrogen rich layer at the surface of steel which can be, dependant on the material treated, up to 1000 Hv.

One of the great advantages that nitriding has over most other forms of case hardening is the minimum amount, and in some instances, total lack of distortion that is produced by this low temperature treatment.

Chemical Blacking

We aim to be able to cover almost all your heat treatment needs, including being able to offer hot Chemical Blacking.  This process etches a very fine black surface coat, which not only provides a final cosmetic finish but also affords a certain level of rust prevention.