| Issue |
OCL
Volume 19, Number 1, Janvier-Février 2012
|
|
|---|---|---|
| Page(s) | 51 - 53 | |
| Section | Dossier : Lipochimie | |
| DOI | https://doi.org/10.1051/ocl.2012.0429 | |
| Published online | 15 January 2012 | |
Les lubrifiants secs pour le tréfilage
CONDAT Lubrifiants, 104 avenue Frédéric Mistral, 38670 Chasse sur Rhône, France
Abstract
The wire drawing process consists in reducing the diameter of a metallic wire by traction through a die. Wire drawing dry lubricant is a complex product not only considering the selection of raw materials, theirs formulation but also the manufacturing process. It can be assimilated to an elaborate mixture of mainly sodium and calcium soaps with mineral elements (fillers) and additives. The composition and the association of these elements allow the control of thickness and consistence of the lubricant film through the dies. Fatty matters mainly used for the manufacturing of these soaps are tallow and stearic acid extracted from tallow. Initially considered as a waste and questioned during the BSE crisis, tallow is nowadays on demand especially on the biofuels market.
Key words: Soaps / wire drawing / lubricant / pre-coatings
© John Libbey Eurotext 2012
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