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ESTIMATION OF LUBRICANT LAYER ON PIPE ROLLING IN MILLS

Dušan Čurćija ; Metalurški fakultet Sveučilišta u Zagrebu, Sisak, Hrvatska
Ilija Mamuzić ; Metalurški fakultet Sveučilišta u Zagrebu, Sisak, Hrvatska

Sažetak

Approximate analysis of lubricant layer at seamless pipe conti-rolling in working mills. The thickness of lubricant laye is in micros and nanos, and it is expressed through the lubrication equation (Reynold's differential equation). The solution is deduced for smooth surfaces of tools and pipes regardless of the inertial forces of lubricants at higher operating rate. Lubricant ecological characteristics and tool geometrical characteristics were analysed. Analytical solutions were tested in several mathematical programmes and compared to Monte-Carlo method within the program Mathematica.

Ključne riječi

rolling of seamless pipes; lubricating film; Reynolds hydrodinamic pressure distribution; technical calculation viewpoint; numeric methods

Hrčak ID:

36224

URI

https://hrcak.srce.hr/36224

Datum izdavanja:

30.3.2009.

Podaci na drugim jezicima: hrvatski

Posjeta: 2.558 *