How to Roll slitting?

Rolling method and device for headless continuous casted and rolled ultra-low carbon steel roll ferrite used for ultra-deep drawing,Medium- and finish-rolling pass structure for four-strand slitting in continuous rolling of phi12 deformed bars,Roll paper slitting and scheduling optimization method and system based on non-linear integer programming,Full-automatic storage battery protective mesh mounting equipment,Paper roll slitting and winding device

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32 results about "Roll slitting" patented technology

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Roll slitting is a shearing operation that cuts a large roll of material into narrower rolls. There are two types of slitting: log slitting and rewind slitting. In log slitting the roll of material is treated as a whole (the 'log') and one or more slices are taken from it without an unrolling/re-reeling process. In rewind slitting the web is unwound and run through the machine, passing through knives or lasers, before being rewound on one or more shafts to form narrower rolls. The multiple narrower strips of material may be known as mults (short for multiple) or pancakes if their diameter is much more than their width. For rewind slitting the machine used is called a slitter rewinder, a slitter or a slitting machine – these names are used interchangeably for the same machines. For particularly narrow and thin products, the pancakes become unstable, and then the rewind may be onto a bobbin-wound reel: the rewind bobbins are much wider than the slit width and the web oscillates across the reel as it is rewound. Apart from the stability benefit it is also then possible to put very long lengths, (frequently many tens of kilometres), onto one bobbin.

Rolling method and device for headless continuous casted and rolled ultra-low carbon steel roll ferrite used for ultra-deep drawing

PendingCN107597845AReduce rolling pressureCompact structureTemperature control deviceWork treatment devicesCarbon steelRoll slitting

The invention provides a rolling method and device for headless continuous casted and rolled ultra-low carbon steel roll ferrite used for ultra-deep drawing, and belongs to the field of metallurgicalrolling. The process of the rolling method is continuous casting for billet forming, high pressure water descaling, coarse rolling through a coarse rolling machine set, rapid cooling (controlling phase change), high pressure water descaling, ferrite rolling through a fine rolling machine set (blowing and sweeping water between racks), cooling through a layer cooling device, high speed flying shearfor roll slitting and coiling through a coiling machine. By means of the rolling method, the difficult problems that the heating temperature of a heating furnace before coarse rolling in a conventional hot rolling process is high, the time of temperature waiting for cooling time between coarse rolling in an Austenite area and fine rolling in a ferrite area is long, and the fine rolling temperature, the steel coil surface quality, forming performance and the like of continuous casting and rolling process of a thin plate which is represented by CSP are difficult to stably control are solved, the rolling method has the advantages of being compact in layout, few in investment, high in production efficiency, safe, reliable, energy-saving, environmental-protection, low in cost and the like, andthe ultra-low carbon steel coil for ultra-deep drawing is produced through headless continuous casting and rolling and ferrite rolling.

32 results about "Roll slitting" patented technology

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