Partager

Usure et frottement des PVE dans un milieu de HFC.

Wear and scuffing characteristics of PVE in an HFC atmosphere.

Auteurs : TAKESUE M., TOMINAGA S.

Résumé

Tribological characteristics of polyvinylethers (PVE), linear polyolesters (L-POE), branched polyolesters (HS-POE) and polyalkylene glycols (PAG) were studied using an HFC sealed block on a ring wear tester. PVE and PAG showed lower wear and higher scuffing load capacity than L-POE and HS-POE. Due to the high viscosity-pressure coefficient of PVE, a strong oil film in the elastohydrodynamic lubrication (EHL) condition prevented a direct contact between the rubbing surfaces. Due to its high absorption ability, the POEs formed an absorbent film. This film was not strong and easily broken down. This oil film breakdown resulted in micro-scuffing between the rubbing surfaces.

Détails

  • Titre original : Wear and scuffing characteristics of PVE in an HFC atmosphere.
  • Identifiant de la fiche : 1999-3417
  • Langues : Anglais
  • Sujet : Alternatives aux HFC
  • Source : Proceedings of the 1998 Purdue International Refrigeration Conference.
  • Date d'édition : 14/07/1998
  • Document disponible en consultation à la bibliothèque du siège de l'IIF uniquement.

Liens


Voir d'autres communications du même compte rendu (67)
Voir le compte rendu de la conférence

Indexation