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11th Leeds-Lyon symposium …
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1 lth Leeds-Lyon Symposium... 'Mixed lubrication and lubricated wear' has been chosen as the theme of next year's Symposium, to be held at Bodington Hall, Leeds on 4 - 7 September. This is only the second time that 'wear' has featured as a major theme, and the organizers expect that some of the topics discussed will be linked with the subject of the ninth symposium - the tribology of reciprocating engines. In the call for papers, the organizers recognize that many bearings and lubricated machine elements experience mixed lubrication during part of their operating cycles. This occurs not only when machines start and stop, but also at high loads and low entraining velocities in reciprocating machinery. Under these circumstances the load carrying capacity arises from a mixture of fluid-film and boundary lubrication actions. The overall friction, lubricant flow rate and wear are determined by this balance of surface interactions and fluid film lubrication. The Symposium will provide an opportunity for those working on, and with interests in, thin film hydrodynamic and elastohydrodynamic lubrication to discuss such topics as asperity contact and lubrication, mixed friction and fdm breakdown with those involved with the extensive studies of lubricated wear. The current interest in reducing power losses in machinery and the reliability and life of lubricated, rubbing components is expected to promote a topical interest in the Symposium. Offers of papers giving the proposed title, names of authors and a brief synopsis should be submitted as soon as possible and no later than January 30th 1984. D. Dowson or C.M. Taylor, Institute of Tribology, Dept of Mechanical Engineering, The University of Leeds, Leeds LS2 9JT, UK
... Eurotrib '85 in Lyon For ten days in 1985 the city of Lyon will play host to a large number of tribologists - both industrial and academic. As well as the biennial visit
TR IBOLOGY international
of the Leeds-Lyon Symposium on 3 - 6 September, Eurotrib 85 wilt be held at Ecole Centrale de Lyon on 9 - 1 2 September. In addition, a special programme of visits and tours is being planned for the weekend which separates the two events. Approximately 600 delegates are expected for Eurotrib. Eurotrib 85 is the fourth International Symposium on Tribology - after London (1973), Dusseldorf (1977) and Warsaw (1981) - and will be organized jointly by the International Tribology Council, the Societe Francaise de Tribologie and the Ecole Centrale de Lyon. Attention will be focussed on new contributions to both general understanding and industrial practice arising from research and development in the field of surface mechanics. Included will be methods of diagnosis, remedies which improve efficiency and competitiveness of industrial processes, products and machines. Final date for submission of abstracts (300 words in French or English) is 31 March 1984. A decision on acceptance will be made during June 1984 and final manuscripts must be produced by 15 January 1985. Official languages of the conference itself are English and French and simultaneous translation in these languages is planned. Poster sessions will also be held; deadline for 50 word abstracts is 30 April 1985. Full copies of the call for papers can be obtained from: Eurotrib 85, Scientific Secretariat, Ecole Centrale de Lyon, 36 avenue Guy de Collongue, BP 163, F-69131 Ecully Cedex, France
Race and cage o f a heavy duty thrust bearing showing the 'make up' o f a replacement bearing for a steelworks soaking pit pedestal crane. To replace the original the crane structure needed to be dismantled. To ease this problem and save complete dismantling (and the ensuing expenditure) it was decided to split the replacement beating across its diameter. This was achieved by partial slitting and controlled breaking o f the race and cage. The/agged nature o f the break provided an exact location for the two halves o f the new bearing when located around the pivot shaft. The bearingis 26 in (660 ram) bore by 30 in (750 ram) outside diameter. Wyko Group L td, Queens Cross, Dudley, West Midlands DI71 1QW, UK
Under-sea hydraulic fluids Hydraulic fluids developed specifically for off-shore activities are available from Elf. Subhydrelf 15 is a high viscosity index mineral oil conforming to type HV of standard NF.E 48600. Its properties make it suitable for remote installations, eg underwater well heads, and for offshore platforms. It is stable over long periods, provides corrosion protection and is resistant to bacterial attack. Addition of a fluorescent dye allows easy detection of leaks.
XT 5720 is a water soluble oil used at 5% concentration, which possesses all the qualities of a non-inflammable hydraulic fluid of class HFAS (NF.E 48602). As well as giving corrosion and bacterial resistance, Elf claims it can be used down to -40 °C (with ethylene glycol) without deterioration of the principal hydraulic properties. Elf France (Lub/THQ), 137 Rue de l'Universite, F-75340 Paris Cedex 07, France.
287
~AImZ m aw~ II'~r.-=ilBIIE ~IL-Ill
~
iiw iiw
qhlp ~
1 lth Leeds-Lyon Symposium... 'Mixed lubrication and lubricated wear' has been chosen as the theme of next year's Symposium, to be held at Bodington Hall, Leeds on 4 - 7 September. This is only the second time that 'wear' has featured as a major theme, and the organizers expect that some of the topics discussed will be linked with the subject of the ninth symposium - the tribology of reciprocating engines. In the call for papers, the organizers recognize that many bearings and lubricated machine elements experience mixed lubrication during part of their operating cycles. This occurs not only when machines start and stop, but also at high loads and low entraining velocities in reciprocating machinery. Under these circumstances the load carrying capacity arises from a mixture of fluid-film and boundary lubrication actions. The overall friction, lubricant flow rate and wear are determined by this balance of surface interactions and fluid film lubrication. The Symposium will provide an opportunity for those working on, and with interests in, thin film hydrodynamic and elastohydrodynamic lubrication to discuss such topics as asperity contact and lubrication, mixed friction and fdm breakdown with those involved with the extensive studies of lubricated wear. The current interest in reducing power losses in machinery and the reliability and life of lubricated, rubbing components is expected to promote a topical interest in the Symposium. Offers of papers giving the proposed title, names of authors and a brief synopsis should be submitted as soon as possible and no later than January 30th 1984. D. Dowson or C.M. Taylor, Institute of Tribology, Dept of Mechanical Engineering, The University of Leeds, Leeds LS2 9JT, UK
... Eurotrib '85 in Lyon For ten days in 1985 the city of Lyon will play host to a large number of tribologists - both industrial and academic. As well as the biennial visit
TR IBOLOGY international
of the Leeds-Lyon Symposium on 3 - 6 September, Eurotrib 85 wilt be held at Ecole Centrale de Lyon on 9 - 1 2 September. In addition, a special programme of visits and tours is being planned for the weekend which separates the two events. Approximately 600 delegates are expected for Eurotrib. Eurotrib 85 is the fourth International Symposium on Tribology - after London (1973), Dusseldorf (1977) and Warsaw (1981) - and will be organized jointly by the International Tribology Council, the Societe Francaise de Tribologie and the Ecole Centrale de Lyon. Attention will be focussed on new contributions to both general understanding and industrial practice arising from research and development in the field of surface mechanics. Included will be methods of diagnosis, remedies which improve efficiency and competitiveness of industrial processes, products and machines. Final date for submission of abstracts (300 words in French or English) is 31 March 1984. A decision on acceptance will be made during June 1984 and final manuscripts must be produced by 15 January 1985. Official languages of the conference itself are English and French and simultaneous translation in these languages is planned. Poster sessions will also be held; deadline for 50 word abstracts is 30 April 1985. Full copies of the call for papers can be obtained from: Eurotrib 85, Scientific Secretariat, Ecole Centrale de Lyon, 36 avenue Guy de Collongue, BP 163, F-69131 Ecully Cedex, France
Race and cage o f a heavy duty thrust bearing showing the 'make up' o f a replacement bearing for a steelworks soaking pit pedestal crane. To replace the original the crane structure needed to be dismantled. To ease this problem and save complete dismantling (and the ensuing expenditure) it was decided to split the replacement beating across its diameter. This was achieved by partial slitting and controlled breaking o f the race and cage. The/agged nature o f the break provided an exact location for the two halves o f the new bearing when located around the pivot shaft. The bearingis 26 in (660 ram) bore by 30 in (750 ram) outside diameter. Wyko Group L td, Queens Cross, Dudley, West Midlands DI71 1QW, UK
Under-sea hydraulic fluids Hydraulic fluids developed specifically for off-shore activities are available from Elf. Subhydrelf 15 is a high viscosity index mineral oil conforming to type HV of standard NF.E 48600. Its properties make it suitable for remote installations, eg underwater well heads, and for offshore platforms. It is stable over long periods, provides corrosion protection and is resistant to bacterial attack. Addition of a fluorescent dye allows easy detection of leaks.
XT 5720 is a water soluble oil used at 5% concentration, which possesses all the qualities of a non-inflammable hydraulic fluid of class HFAS (NF.E 48602). As well as giving corrosion and bacterial resistance, Elf claims it can be used down to -40 °C (with ethylene glycol) without deterioration of the principal hydraulic properties. Elf France (Lub/THQ), 137 Rue de l'Universite, F-75340 Paris Cedex 07, France.
287