ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Regular micro-surface structure in the form of micro-pores produced on the face ofmechanical seals by laser technology can be used to improve the friction performance of the sealmating rings. A test rig with variable axial load was used to test laser-textured seal rings withmicro-pores of various pore depth and pore ratio to study the effect of the laser-textured seal facestructure parameters on the friction performance of mechanical seals. It is found that there areoptimum texturing face parameters at which the friction torque and the face temperature rise of sealrings are minimum. Results of these tests show that the micro-pores on one of the seal mating facescan generate substantial hydrodynamic effect.Heat generation due to frictional contact on seal-ring surfaces is a major factor that causesdeterioration of face seals and shortens their service life[1,2]. Excessive temperature rise can beavoided by improving structure of a seal surface. By means of laser technology return-flow structure,oblique line groove and spherical micro-pores are engraved on the seal face[3-5]. The researchshows that substantial hydrodynamic effect can be generated between the seal faces withmicro-pores[6-8]. In this study experiments are performed on laser-textured micro-pores seal facesat various axial loads to investigate the effect of the face structure and operating parameters onfriction torque and face temperature rise
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/14/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.532-533.81.pdf
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