Results 251 to 260 of about 299,243 (309)
Some of the next articles are maybe not open access.
Analysis of banded hot rolling rolls
Wear, 1993Abstract The aim of the present study was to investigate the surface wear phenomenon known as banding which is one of the major wear problems occurring on hot rolling rolls, and a major cause of roll surface deterioration and the subsequent need for roll regrinding.
L.C. Erickson, S. Hogmark
openaire +1 more source
Tribological behaviour of hot rolling rolls
Wear, 2005The study of wear mechanisms represents a very important task for the development of roll materials, with improved hot tribological properties. In the present paper the wear behaviour of different materials, i.e., high alloy steels (high speed steels (HSS)) and cast irons (high chromium irons (HiCr) and indefinite chill irons (IC)), produced by ...
Pellizzari, Massimo +2 more
openaire +2 more sources
Damage in hot rolling work rolls
Wear, 1999Samples from a couple of work rolls employed in a hot rolling steel strip mill were examined by scanning electron microscopy in order to study their surface, as well as the wear mechanisms responsible for their damage. It was found that a series of cracks develop within the rolls at the beginning of their operational cycle, these cracks follow the ...
Rafael Colás +4 more
openaire +1 more source
Modernization of Hot-Rolled Tubes Rolling Method
Solid State Phenomena, 2017A new method of hot-rolled pipes rolling on the automatic tandem mill is suggested. It consists of two rolling stands. This method allows achieving the rough pipe preovalisation before reaching the automatic mill. The rough pipe preovalisation provides even groove filling and the decrease of pipe wall thickness variation.
D.A. Pavlov +2 more
openaire +1 more source
Modelling oxidation of hot rolling work rolls
Ironmaking & Steelmaking, 2001A mathematical model was developed to compute the growth of the oxide layer found on the surface of hot rolling work rolls. The model considers that the rolls are installed in a continuous hot strip mill, and that their surface is subjected to the thermal cycling that results from contact with the steel being rolled and from the water delivered from ...
V. González +3 more
openaire +1 more source
Optimal cooling of rolls in hot rolling
Journal of Materials Processing Technology, 2002Abstract A laboratory experimental device was developed to allow full-scale measurements on roll cooling to be carried out. The full-scale tests use a complete configuration of rows of nozzles as in the plant conditions or prepared by a designer. The laboratory approach allows the design to be optimised or to compare old and new solutions.
M Raudensky, J Horsky, M Pohanka
openaire +1 more source
Roll-to-roll hot embossing of microstructures
Microsystem Technologies, 2010In this paper we present a new roll-to-roll embossing process allowing the replication of micro patterns with feature sizes down to 0.5 µm. The embossing process is suitable for the continuous output of micro patterned structures and is not accompanied by waste produced during the initial hot embossing phase.
Thomas Velten +5 more
openaire +1 more source
2015
In hot rolling, the productivity or quality of rolled strips is required to be improved and the ultra-thin rolled strips are also required. In order to achieve these requirements, it is necessary that unstable rolling is prevented, especially for head and tail ends, and that cooling of rolled strips is uniform.
Kanji Hayashi +2 more
openaire +1 more source
In hot rolling, the productivity or quality of rolled strips is required to be improved and the ultra-thin rolled strips are also required. In order to achieve these requirements, it is necessary that unstable rolling is prevented, especially for head and tail ends, and that cooling of rolled strips is uniform.
Kanji Hayashi +2 more
openaire +1 more source
MODELLING WORK-ROLL TEMPERATURE VARIATIONS IN HOT STRIP ROLLING
International Journal of Modelling and Simulation, 2004AbstractPrediction of temperature distribution within work-rolls during the hot strip rolling process is of great importance to mill designers because of the significant role it plays in the product's dimensional accuracy and roll life. The present article employs the unsteady state heat transfer equation with time-dependent boundary conditions, as ...
S. Serajzadeh, A. Karimi Taheri
openaire +1 more source