6. Pre-treatment preparations
Parts prior to carburizing, or carbonitriding, may undergo various preparation phases that are essential, or favorable, to obtaining the desired results.
6.1 Cleaning before treatment
Parts are often greased before heat treatment to prevent oxidation during transfer. They can also be covered with machining products and forming lubricants (stamping, extrusion, etc.).
In order to prepare the surface, and in particular to avoid leaving polluted areas that could act as a screen during treatment, cleaning is generally carried out:
washing: just before processing, the parts are put into a washing machine, where they are washed in a generally alkaline detergent at 60-80°C, followed by a clear water...
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Pre-treatment preparations
Post-processing
Bibliography
Article M 1 225
Standards and norms
French Standards Association (AFNOR)
Steel standards
- Aciers à dispersoïdes destinés au forgeage à chaud. Demi-produits et barres. - A 33-111 - 10.87
- Aciers de construction non alliés et alliés spéciaux pour cémentation. Nuances. Demi-produits, barres et fils machine. - NF A 35-551 - 7.86
- Aciers pour tempe et revenu. Partie 1 : conditions techniques de livraison des aciers spéciaux (indice...
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