ISSN 2594-5297
52º Seminário de Laminação — vol. 52, num.52 (2015)
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Some of the most significant Danieli innovations in the field of long products are the: i) The EWR® system, through automatic continuous head-to-tail flash welding of billets at reheating furnace exit side, enables uninterrupted production of the mill for endless rolling of straight bars, wire rod and bar in coils. The process is particularly beneficial to wire rod and bar-in-coil mills as it enables production of “customized-size coils” (any coil weight according to specific Customer request) and with extra-high final coil weight, even starting from low-weight billets; ii) The Spooler process is based on twistfree winding of hot-rolled rebars into highly-compact/ultra-heavy coils featuring a unique cobble-free un-coiling capability. This enables high-speed feeding of the downstream cold-processing lines with hot-rolled spooled coils coming directly from the rolling mill without the need of any traditional off-line operation (such as de-coiling, stretching & re-winding). The system results highly beneficial both to bar-in-coil producers and to the downstream lines operators. The latest step forward is the combined application of these two systems that has made it possible for endless rolling of spooled bar in coils, enabling to cumulate the benefits of the two processes, particularly as far as transformation costs are concerned.
Palavras-chave
EWR® Endless Welding Rolling system, Uninterrupted production of the rolling mill, Customized coil weight, Spooler system for bar-in-coil production, Twistfree winding of hot-rolled rebars
Twistfree winding of hot-rolled rebars
Como citar
Castenetto, Marco;
Taurino, Andrea;
Mestroni, Antonello.
EWR® ENDLESS WELDING ROLLING SYSTEM AND SPOOLER LINE. RESULTS AND COMBINED APPLICATION FOR ENDLESS ROLLING OF SPOOLED COILS
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p. 307-314.
In: 52º Seminário de Laminação,
Rio de Janeiro,
2015.
ISSN: 2594-5297
, DOI 10.5151/1983-4764-26715
