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Wear and scuffing characteristics of PVE in an HFC atmosphere.

Author(s) : TAKESUE M., TOMINAGA S.

Summary

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.

Details

Original title: Wear and scuffing characteristics of PVE in an HFC atmosphere.
Record ID : 1999-3417
Languages: English
Subject: HFCs alternatives
Source: Proceedings of the 1998 Purdue International Refrigeration Conference.
Publication date: 1998/07/14
Document available for consultation in the library of the IIR headquarters only.

Links

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See the conference proceedings

Indexing

Themes: Compressors;
HFCs;
Lubricants
Keywords: Ether; Mechanical property; Lubricant; Wear; Synthetic oil; HFC; Testing