Conference paper

BIODEGRADABLE LUBRICATING GREASES AND THEIR APPLICATION ON RAILWAYS

Kamil Nahal

Abstract

Abstract
Biodegradable lubricating greases are becoming increasingly used for critical application spots, on which severe environmental requirements are imposed. Such greases must be characterized by a high degree of biodegradability over a short period of time. If that is not the case, they could bear a harmful impact on either environment in general, or soil and waters.
Given that lubricating greases based on refined mineral oils cannot meet these requirements, biodegradable greases are made of either natural or synthetic esters. Biodegradable lubricating greases have to be non-toxic. As a rule, they are multipurpose and have EP properties, and are applied in both manual and automatized lubrication.
The paper provides data on the making of two biodegradable greases different thickeners, based on lithium soaps and synthetical biodegradable esters. It also provides data on field tests performed at HŽ (The Croatian Railways) company.

Keywords

lubricating greases; biodegrability; environment pollution and protection; locomotive wheel rim; wheel and track interaction; railway lubricants

Hrčak ID:

10631

URI

https://hrcak.srce.hr/10631

Publication date:

3.7.2000.

Article data in other languages: croatian

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