Failure Analysis of ICDP Work Roll of Hot Strip Mill: Case Study of Shell-Core Interface Spalling
نویسندگان
چکیده
The failure of the roll during rolling process causes cobble to lose production time for several hours. Investigations include visual inspection, lltrasonic test, chemical analysis, metallography, and hardness measurement. Stand finishing F1-F4 uses High Chrome (HCr) material type, while F5-F6 ICDP type. Spalling work occurs on stand F5 with Roll Top position. was chipped between shell core an exfoliation percentage 30% surface area. Visually, part looks smooth even. Thus no typical sign fatigue or brittle observed. composition conforms standard. that does not experience spalling follows metallography analysis found micro-cracks in spalled samples inclusions form scale shell-core interface. Based study, it can be concluded is caused by poor bonding roll.
منابع مشابه
esp needs analysis of iranian ma students: a case study of university of isfahan
نیاز سنجی دانشجویان کارشناسی ارشد ایرانی در رابطه با زبان تخصصی: مطالعه ای در دانشگاه اصفهان هدف از این مطالعه بررسی نیازهای یادگیری زبان خارجی دانشجویان کارشناسی ارشد دانشجویان دانشگاه اصفهان در رشته های زیست شناسی، روانشناسی، تربیت بدنی، حسابداری و فلسفه ی غرب میباشد. در مجموع 80 دانشجودر پنج رشته ی متفاوت از دانشگاه اصفهان در این پژوهش شرکت داشتند.علاوه بر این هشتاد دانشجو،25 استاد دروس ت...
15 صفحه اولAnalysis of Work Roll Thermal Behavior for 1450mm Hot Strip Mill with Genetic Algorithm
Work roll thermal contour is one of the important factors for roll contour design and configuration in hot strip rolling, for which the temperature field calculation is a critical factor. To realize the work roll thermal behavior for 1450mm hot strip mill, the temperature field and thermal contour calculation model was built with finite different methods, and the genetic algorithm was introduce...
متن کاملa study on construction of iranian life tables: the case study of modified brass logit system
چکیده ندارد.
15 صفحه اولanalysis of reading comprehension needs of the students of paramedical studies: the case of the students of health information management (him)
چکیده ندارد.
15 صفحه اولPrediction of Work Roll Initial Crown according to Desired Strip Profile in Hot Rolling
The final hot strip profile is a superposition of the roll initial crown, the roll bending and flattening crown, the roll wearing crown and the roll thermal crown. In this research, linear regression models are proposed to predict the roll force, the roll wearing crown and the roll thermal crown using experimental data provided by Mobarake Steel Complex (MSC). The short beam theory based on ela...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Jurnal Pendidikan Teknologi Kejuruan
سال: 2022
ISSN: ['2621-1548', '2621-3273']
DOI: https://doi.org/10.24036/jptk.v5i1.27023