Roll neck fracture was the result of the rotational-bending fatigue due to uncontrolled decreasing of the inlet rolling temperature. Three groups of design modifications of the roll neck have been considered to decrease maximum local stresses and to increase roll service life. In order to reduce energy consumption, influence of three different inlet rolling temperatures has also been considered. The negative influence of rolling temperature decreasing on roll fatigue life can be completely compensated by the adequate shape of roll neck and in that way reduce energy consumption and overall costs.
Get full access to this article
View all access options for this article.
References
1.
DomazetŽLukšaFŠušnjarM.Failure analysis of rolls with grooves. Eng Fail Anal. 2007;14(6):1116–1174. doi: 10.1016/j.engfailanal.2006.11.067
2.
DomazetŽLukšaF.Experimental determination of the rolling force on the rolls with grooves. Proceedings of the 22-nd Symposium ‘DANUBIA-ADRIA’ on Experimental Methods in Solid Mechanics, Parma; 2005.
3.
DomazetŽLukšaFŠušnjarM.Failure analysis of rolling mill stand coupling. Eng Fail Anal. 2014;46:208–218. doi: 10.1016/j.engfailanal.2014.09.002
LukšaF.Istraživanje uzroka loma kalibriranih valjaka. Magistarski rad, Sveučilište u Splitu, Fakultet Elektrotehnike, Strojarstva i Brodogradnje, Split, Croatia; 2005.
6.
DomazetŽLukšaFBugarinM.Fatigue strength of the rolls with grooves. Appl Mech Mater. 2014;459:330–334. doi: 10.4028/www.scientific.net/AMM.459.330
