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عنوان فارسی مقاله:
مطالعه صورت شکستگی شدید نوار در دستگاه نورد تختال نازک ریخته گری(TSCR) فروشگاه TATA STEEL
عنوان انگلیسی مقاله:
Case study of severe strip breakage in rolling mill of Thin Slab Casting and Rolling (TSCR) shop of TATA Steel, Jamshedpur
سال انتشار : 2016
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مقدمه انگلیسی مقاله:
1. Introduction
Strip breakages in steel rolling mills result in loss of production due to mill stoppage and may also cause damage to equipment. The magnitude of loss is even higher in the case of integrated processes like Thin Slab Casting and Rolling (TSCR) where all the processing stations are interlinked [1]. In such a case, mill stoppages may affect upstream processes and can also lead to unplanned abort of casting and steelmaking operations. Rolling of defective strips in the final stands may also affect work roll surfaces with an adverse impact on the surface quality of the hot rolled strips. Additional time and cost is sometimes invested in premature changing of work rolls in the rolling mill. In TSCR shop of TATA Steel Jamshedpur, thin slabs of 50–70 mm thickness are cast a high speeds and directly charged to tunnel furnaces where they are reheated to 1150–1170 8C and soaked for 15–25 min for homogenization. The slabs are then delivered to the six-stand finishing mill and hot rolled into strips of desired thickness. A severe strip breakage was experienced in the finishing mill of TSCR while rolling a slab of low-C low-Mn grade. Preliminary investigations revealed no abnormality in casting and reheating parameters of the slab experiencing the breakage during its rolling. The slabs were also free from shape related defects like wedge or camber. Mechanical failures likehydraulic leakages, looper failures, strip and roll cooling system malfunctions, etc. did not occur during rolling of the slab. Even systems like Automatic Gauge Control and Automatic Profile Control were found to be properly functioning. Also, no operational errors related to mill balancing or CVC shifting was observed corresponding to this slab. Thus, an in-depth study was required to understand the root cause of the breakage. This paper reports the findings of this investigation based on which the mechanism of strip breakage could also be hypothesized.
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کلمات کلیدی:
Case study of severe strip breakage in rolling mill of Thin ... - INFONA https://www.infona.pl/.../bwmeta1.element.elsevier-aeb48191-dbd0-3607-ac27-7f38f7b... by D Bhattacharya - 2016 - Related articles A case of severe strip breakage during hot rolling in Thin Slab Caster and Rolling (TSCR) unit has been investigated. • White stringer like defects and holes are ... Case study of severe strip breakage in rolling mill | LES EXPERTS ... https://expertsdefaillances.com/.../case-study-of-severe-strip-breaka... Translate this page Aug 31, 2016 - A case study published in "Case Studies in Engineering Failure Analysis" - april 2016. In this paper, a case of severe strip breakage in rolling ... Recent Case Studies in Engineering Failure Analysis Articles - Elsevier https://www.journals.elsevier.com/case-studies-in-engineering-failure.../recent-articles Failure of 321 stainless steel heater tube in heavy crude oil .... Case study of severe strip breakage in rolling mill of Thin Slab Casting and Rolling (TSCR) shop ... Diptak Bhattacharya - Google Scholar Citations scholar.google.co.in/citations?user=Yll6hEYAAAAJ&hl=en Case study of severe strip breakage in rolling mill of Thin Slab Casting and Rolling ... Development of High Strength Hot Rolled Strips through Compact Strip ... rolling mills slabs - cone crusher, dust catcher on the production line www.stowarzyszeniekrystyn.eu/building/9444/rolling-mills-slabs.html Hot Strip Mill and Cold Rolling Mill | Industry Application ,. Heated metal is put ... Case study of severe strip breakage in rolling mill of Thin Slab ,. 1 Dec 2015 , In ... Roll Mills Later - Vertical Shaft Impact Crusher tesinstitute.in/15-05_19327/Roll-Mills-Later/ Rolling (metalworking) - WikipediaIn metalworking, Roll Mills Later rolling is a metal forming ... Case study of severe strip breakage in rolling mill of Thin… rolling mill slag on - Mobile Screening Crusher Plants pachmarhihotels.co.in/32558/rolling-mill-slag-on/ Case study of severe strip breakage in rolling mill of Thin Slab. In this paper, a case of severe strip breakage in rolling mill of Thin Slab Casting The entrapments ...
