ROLLS LIFELINE OF ROLLING MILLS - IIM

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LATEST DEVELOPMENTS INROLLS• DISPERSED CARBIDE INDEFINITE CHILLED ROLLIncreased life of about 30% to 40% over normal indefinite chilled led rollApplicationHot strip mill finishing stand & Bar & rod mill• DISPERSED CARBIDE NODULAR IRON ROLL• Increased life of about 30 to 40% over normal nodular iron.Resistant to fire crackApplication• HIGH SPEED ST EEL ROLLBar & rod mill. & Structural millThis is the latest developed roll material .Rolling mill all over r the worldhave started using this grade getting wide benefits.ApplicationBar & rod mill (both intermediate & finishingstand), Small section like channel & angle mill. & Hot strip mill.
LATEST DEVELOPMENTS INROLLS• SOFT ANNEALED NODULAR IRON ROLLS :High fire crack resistance Lower amount of dressingApplicationRoughing stand for bar & rod mill &Structural mill• BAINITIC S.G. IRON ROLLS• COMPOSITE ROLLSHigher tensile impact strength due to Bainitic structure Due tovery good wear resistance & ,higher pass lifeApplication Intermediate stand rolls of Bar & Rod Mills & Pre& Finishing Stands of Structural Mills forchannel rollingTungusten/HSS rings on Nitrided shaft with adequate clamping system
Page 1: ROLLSLIFELINE OF ROLLING MILLSGiree
Page 4 and 5: These are produced fromRolling Mill
Page 6 and 7: Rolling - a processWhere in metal i
Page 9 and 10: ROLLS•FUNCTIONS•EXECUTE- SPECIF
Page 11 and 12: FAILURE•ROLL FAILURE-ECONOMIC DIS
Page 13 and 14: ROLL CLASSIFICATIONBASED ON APPLICA
Page 15 and 16: ROLL DEFECTS• HIGH AND NONUNIFORM
Page 17 and 18: ROLL DEFECTS• HARD AND SOFT SPOT
Page 19 and 20: • FROMSELECTION CRITEREACONCEPTCO
Page 21 and 22: SELECTION CRITEREA• TYPE OF STAND
Page 23 and 24: ORDERING - SPECIFICATIONS
Page 25 and 26: MONITORING OF ROLL• Good roll coo
Page 27: ROLL COOLING - 3Hi

ROLLS LIFELINE OF ROLLING MILLS - IIM

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