摘要:

AbstractFire‐resistant hydraulic fluids have been developed since the Second World War. In addition to phosphate esters, there are various other fluids (e.g. oil‐in‐water emulsions, water glycols) available. This paper provides a technical comparison of the different fluid types, in terms of fire resistance, lubricating properties, and viscosity. The second part of the study examines the corrosion properties, thermal and oxidative stability, shear stability, materials compatibility, and other physical prope

ISSN:0265-6582    

DOI:10.1002/jsl.3000140402

出版商:John Wiley&Sons, Ltd    

年代:1998

数据来源: WILEY

摘要:

AbstractDiverse physical and chemical test methods are employed to evaluate important environmental characteristics of lubricants and lubricant related waste materials. The most important chemical tests are closely related to lubricant composition. The amount of aromatic and polycyclic aromatic hydrocarbons in base oils, as well as the potential amount of heavy metals in additives must be known. Among the biological tests, the most important are those dealing with biodegradation characteristics, but neither human nor ecotoxicity tests can be ignored.

ISSN:0265-6582    

DOI:10.1002/jsl.3000140403

出版商:John Wiley&Sons, Ltd    

年代:1998

数据来源: WILEY

摘要:

AbstractA range of commercially available automatic transmission fluids (ATFs) was tested, in order to compare their performance both with each other and with broadly accepted European market requirements. The test results showed a considerable variance in the performance of the fluids, despite their conformity to a common ATF specification. Furthermore, when the latest transmission developments are considered, it becomes clear there is, in many instances, a divergence of performance requirements. One area of potential conflict is the different emphasis on passenger cars as against commercial vehicles in the North American and European markets. The paper examines factors that influence ATF performance requirements, and the areas of compromise if a common fluid is needed. Suggestions are made to address those circumstances where it seems that performance needs are too divergent.

ISSN:0265-6582    

DOI:10.1002/jsl.3000140404

出版商:John Wiley&Sons, Ltd    

年代:1998

数据来源: WILEY

摘要:

AbstractThis paper looks at newly developed trimethylolpropane (TMP) esters, which have multifunctional properties as additives in aqueous metalworking fluids. Such TMP esters can replace the previous monofunctional esters, which provided only lubrication.New TMP esters are obtained by chemical modification of traditional TMP esters, and provide the functions of lubrication, corrosion protection, and co‐emulsification in one product. The paper looks at the chemistry of these esters, and their properties. Some experimental products are also examine

ISSN:0265-6582    

DOI:10.1002/jsl.3000140405

出版商:John Wiley&Sons, Ltd    

年代:1998

数据来源: WILEY

ISSN:0265-6582    

DOI:10.1002/jsl.3000140406

出版商:John Wiley&Sons, Ltd    

年代:1998

数据来源: WILEY

ISSN:0265-6582    

DOI:10.1002/jsl.3000140407

出版商:John Wiley&Sons, Ltd    

年代:1998

数据来源: WILEY

ISSN:0265-6582    

DOI:10.1002/jsl.3000140401

出版商:John Wiley&Sons, Ltd    

年代:1998

数据来源: WILEY