Lubricant surface-treated steel pipe for hydroforming use

Details Lubricant surface-treated steel pipe for hydroforming use Lubricant surface-treated steel pipe for hydroforming use

B - Operations, Transporting

21

C

B21C 23/00 (2006.01) B05D 7/14 (2006.01) C10M 107/28 (2006.01) C10M 107/32 (2006.01) C10M 107/44 (2006.01) C10M 111/04 (2006.01) C10M 177/00 (2006.01) F16L 57/06 (2006.01) F16L 58/10 (2006.01)

Patent

CA 2220192

A lubricant surface-treated steel pipe for hydroforming use in which at least its outer surface is coated with a lubricating organic resin to a thickness of 0.5 µm to 100 µm. The surface-treated steel pipe provides excellent prevention of galling and excellent lubrication in hydroforming. Also, hydroforming can be started immediately after the surface-treated steel pipe is cut into short pieces.

Tuyau d'acier dont la surface a été traitée au moyen d'un lubrifiant pour servir lors de l'hydroformage. Au moins, la surface extérieure du tuyau est enduite d'une résine organique lubrifiante sur une épaisseur de 0,5 à 100 micromètres. Le tuyau d'acier ayant reçu un traitement de surface permet d'éviter le grippage et il offre une excellente lubrification lors de l'hydroformage. De plus, l'hydroformage peut être entrepris dès que le tuyau traité a été coupé en sections courtes.

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