摘要:

AbstractIn order to predict the performance of rolling oils in actual production mills, from tests in laboratory mills, the influence of various factors, such as shape factors work roll diameter (D), strip thickness (h1), operating conditions (reduction rate (r), peripheral velocity of roll (U0), strip velocity (U1)) and kinematic viscosity of the rolling oil (υ0) was investigated. A parameter RLI (Rolling Lubrication Index = u0(U0+U1)(1−r)(D/2h1.r)½) was found to be useful in predicting lubricating conditions in actual production mill applications.The coefficients of friction of mineral oils, some synthetic hydrocarbons including polybutene, and several kinds of additives were obtained from laboratory mills under the same condition of RLI value as that for finish rolling in actual production mills. With hydrocarbons, paraffins showed the lowest coefficient offriction, while aromatics exhibited a higher coefficient of friction, with naphthenes showing the highest.A high‐quality rolling oil was formulated using a combination of ester and paraffinic mineral oil. It is observed that this new oil can save 14% of energy consumed by a laboratory mill compared with conventional rolling oils. In production mills, nearly the same energy conservation level can be ach

ISSN:0265-6582    

DOI:10.1002/jsl.3000050402

出版商:John Wiley&Sons, Ltd    

年代:1989

数据来源: WILEY

摘要:

AbstractThis paper reports the synthesis of various complex esters, describing their physical, chemical, and tribological properties. Specifically, an attempt is made to study the effects of changing the central polyol backbone, of varying chain length of diacids, and of different endcapping alcohols on various properties.

ISSN:0265-6582    

DOI:10.1002/jsl.3000050403

出版商:John Wiley&Sons, Ltd    

年代:1989

数据来源: WILEY

摘要:

AbstractWhen gases with different chemical and physical properties are compressed, the type of lubricant to be used in compressing equipment must be given careful consideration. Basically, this equipment can be categorized as reciprocating or rotary. This paper describes the lubrication of reciprocating compressors. The development of lubricants for use in specific applications, such as the compression of air, natural gas, etc., is discussed in detail. This will include a section dealing with the development and use of screening tests to predict the performance of candidate lubricants, the role of current international specifications, compressor rig tests and field applications. The advantages and disadvantages of mineral oils and synthetic fluids in various applications will also be described in detail.

ISSN:0265-6582    

DOI:10.1002/jsl.3000050404

出版商:John Wiley&Sons, Ltd    

年代:1989

数据来源: WILEY

摘要:

AbstractDiesters are the largest volume of esters manufactured, and are derived from adipic, azelaic or sebacic acids. Their various advantages over petroleum‐based compressor oils are discussed, and the development of an extended‐life diester lubricant is descri

ISSN:0265-6582    

DOI:10.1002/jsl.3000050405

出版商:John Wiley&Sons, Ltd    

年代:1989

数据来源: WILEY

摘要:

AbstractJSL includes this section on the activities, products and services offered by its subscribers. This listing will appear each issue, and be updated regularly, to help readers locate those companies ofpotential use to the synthetic lubricants community. To participate, fill in the form provided in each issue, and send it to the publishers at the address given on the back of the form.

ISSN:0265-6582    

DOI:10.1002/jsl.3000050406

出版商:John Wiley&Sons, Ltd    

年代:1989

数据来源: WILEY

摘要:

AbstractA detailed listing of future meetings of interest to the lubricants community. for further information, readers should apply to the address given. News on forthcoming lubricants conferences is welcome for inclusion in this section.

ISSN:0265-6582    

DOI:10.1002/jsl.3000050407

出版商:John Wiley&Sons, Ltd    

年代:1989

数据来源: WILEY

ISSN:0265-6582    

DOI:10.1002/jsl.3000050401

出版商:John Wiley&Sons, Ltd    

年代:1989

数据来源: WILEY