摘要:

AbstractExperiments were carried out on a wear test machine utilising a gearcam adapter to simulate line‐contact lubrication. Due to the formation of a surface adsorption layer on the steel substrate, the tribological performance was detected by measuring the voltage for a lubricant with various additive concentrations. The roller wear rate was found to be strongly dependent upon both the rising rate of voltage in the wear process and the time period needed to create a positive voltage. The antiwear effect of differing additive concentrations was evaluated using the measurements of voltage for various operating conditions. An increase in rotational speed, with a lubricating oil with a low additive concentration, decreases the wear rate. A lubricating oil with a high additive concentration does little to decrease the wear rate at low rotational speed

ISSN:1354-4063    

DOI:10.1002/tt.3020020302

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

摘要:

AbstractA laboratory method has been developed which involves the use of three new rigs simulating the grinding action in the majority of existing types of mills. All three rigs combine abrasion and erosion with comminution processes. The object of this investigation was to develop a test procedure that would be suitable for general use in estimating the abrasiveness of particular minerals, and to study abrasive wear in various grinding systems. Three separate industrial problems involving coal grinding have been investigated by means of the novel apparatus.The results from the relatively simple laboratory procedures, designed and operated according to the principles of similarity, may be used to predict the service life of grinding machine elements.The tribo‐testing procedure and apparatus can be used to evaluate the abrasiveness of any granular mineral, and for testing the wear resistance of any material in abrasive or erosive action. A second paper (see p. 257) publishes results obtained using the apparatu

ISSN:1354-4063    

DOI:10.1002/tt.3020020303

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

摘要:

AbstractThe abrasive wear properties of materials in sliding contact with solid mineral particles during a comminution process have been studied. The equipment used can simulate tribo‐conditions inside coal pulverisers. Using the experimental apparatus, a number of different materials have been tested and classified according to their resistance to abrasive wear in rubbing contact with particulate coal. The method and principles of three new rigs have been described in the previous paper (see p. 235

ISSN:1354-4063    

DOI:10.1002/tt.3020020304

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

摘要:

AbstractAs in all other areas of research today, so in tribology, computers play an important role. The exact analysis of tribological systems needs finite element methods (FEM) for calculation. Analysis of worn surfaces by SEM, AUGER, ESCA, XRS and the interpretation and documentation of measurements is performed with computers. The new approach to the basis of tribology by the use of scanning tunnelling microscopy (STM) and lateral force microscopy (LFM) would not be possible without computers. This paper points out the opportune tasks for computers in tribological simulation tests, such as complex test cycles, long time runs, automatic sensor calibration, measurements of fast varying signals, control and correction of mutual influences, and mentions the databases TRIBO (Tribology Index) for literature and Tribocollect for tribological data.

ISSN:1354-4063    

DOI:10.1002/tt.3020020305

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

摘要:

AbstractIn order to meet the demands of different engines, various kinds of material are used for the cylinder liners and piston rings. This paper describes a method and the results of wear tests for various liners and rings. These experiments were carried out on a FGM‐1 wear simulation testing machine. The results help contribute to the rational selection and pairing of the liners and the ring

ISSN:1354-4063    

DOI:10.1002/tt.3020020306

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

ISSN:1354-4063    

DOI:10.1002/tt.3020020307

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

ISSN:1354-4063    

DOI:10.1002/tt.3020020308

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

ISSN:1354-4063    

DOI:10.1002/tt.3020020309

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

ISSN:1354-4063    

DOI:10.1002/tt.3020020310

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY

ISSN:1354-4063    

DOI:10.1002/tt.3020020301

出版商:John Wiley&Sons, Ltd    

年代:1996

数据来源: WILEY