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Strip mills

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001255
EISBN: 978-1-62708-232-7
...Abstract Abstract Several back up rolls of 1400 mm barrel diam from a broad strip mill broke after a relatively short operating time as a result of bending stresses when the rolls were dismantled. The fracture occurred in the conical region of the neck at about 600 mm diam. The rolls were...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001532
EISBN: 978-1-62708-232-7
...1. Introduction Hardness Hot-strip mill Rolling mill rolls Spalling Ductile iron Gray iron Fatigue fracture Rolling-contact wear Abstract Abstract Work rolls made of indefinite chill double-poured (ICDP) iron are commonly used in the finishing trains of hot-strip mills (HSMs...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c0091690
EISBN: 978-1-62708-234-1
.... One commonly used ferrule was 3.5 cm long by 7.5 cm in diam and was drawn from 0.5 mm (0.020 in.) thick strip. Investigation (visual inspection, metallographic examination, and a mercurous nitrate test, which is an accelerated test used to detect residual stress in copper and copper alloys) of both...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c0046915
EISBN: 978-1-62708-232-7
...) Liquid metals Strip mills 309 UNS S30900 High-temperature corrosion and oxidation Intergranular corrosion Severe reduction of wall thickness was encountered at the liquid line of a lead-bath pan ( Fig. 1 ) that was used in a continuous strip or wire oil-tempering unit. Replacement of the pan...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001849
EISBN: 978-1-62708-241-9
... ) 10.1361/154770205X76349 5. Ray A. , Prasad M.S. , Barhai P.K. , Mukherjee S.K. : Metallurgical investigation of prematurely failed hot-strip mill work-rolls: some microstructural observations . J. Fail. Anal. Preven . 4 ( 3 ), 58 – 66 ( 2004 ) 10.1007/s11668-996-0016-8...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001535
EISBN: 978-1-62708-232-7
... and Their Behaviour in Cold Strip Mills , 26th Mechanical Working and Steel Processing Conference Proceedings , Vol XXII , The Iron and Steel Society , 1985 , p 101 – 107 Selected References Selected References • Lampman S. , Intergranular Fracture , Failure Analysis and Prevention , Vol 11...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c0046227
EISBN: 978-1-62708-217-4
... that the cracks in the fatigue areas of the fracture surface initiated from corrosion pits. Also observed were secondary fatigue cracks originating in pits on the chemically milled surface and parallel to the fracture surface. A section of each floor was stripped of all coatings to reveal the degrees...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001807
EISBN: 978-1-62708-241-9
... ( 2005 ) 22. Takechi H. , Namba K. , Fujiwara K. et al. , Evaluation of subsurface fatigue damage in strip mill rolls by an x-ray diffraction method . Trans. Iron Steel Inst. Jpn. 21 , 92 – 99 ( 1981 ) 10.2355/isijinternational1966.21.92 Selected references Selected...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.steel.c9001245
EISBN: 978-1-62708-232-7
... by an arrow. It was located approx. 10 mm under the roil face. From this point the fracture in form of a narrow strip, whose special structure can be seen better at a higher magnification in Fig. 2 , runs concentrically around almost two-thirds of the circumference and at various points exits at the surface...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001546
EISBN: 978-1-62708-217-4
... strap was transverse to its length.) The primer was stripped from the strap, and subsequent examination confirmed that the cracks were in the metal surface. It was considered significant that no such cracking was observed around any of the other rivet holes, or on any other face around the failed...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001632
EISBN: 978-1-62708-234-1
... of the inner window after strips were cut with a diamond blade saw, and Fig. 16 and 17 show the samples as they were further cut to lengths suitable for preparation of tensile samples at FZJ. A technique for radioisotope decay gamma analysis in their hot cells has also been developed at FZJ. This technique...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001822
EISBN: 978-1-62708-241-9
... the recommendations for road transportation, essential precautions, such as proper storage in the yard, use of wooden bearing strips and separators, proper weld positioning, and so forth were not followed. This was confirmed by a visit made to the pipe mill following this incident and by closely observing the trucks...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001817
EISBN: 978-1-62708-180-1
... points for corrosion during service. The inner surfaces of some tubes are abrasive blasted to remove the oxides produced during heat treatment and thus eliminate anodic and cathodic sites. The strip stock from which welded tubing is made can be inspected immediately before forming and welding and can...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001609
EISBN: 978-1-62708-229-7
... furnace that encased the tube-to-header welds and a portion of the finned tubes. In the field, joints were wrapped with electrical resistance strip heaters and insulation. Temperature monitoring and control was by direct attachment of thermocouples and multiple channel controllers and chart recorders...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.design.c9001578
EISBN: 978-1-62708-233-4
... , Vol 11 , ASM Handbook , ASM International , 2002 , p 559 – 586 10.31399/asm.hb.v11.a0003537 Case #1: Vibration in Hydroelectric Dam Case #2: Vibration of Steel Strip Caused by an Induction Furnace in a Steel Mill Case #3: Vibration of Microscope in Hospital Microsurgery Room Case...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003567
EISBN: 978-1-62708-180-1
... but are generally between 2 and 3 ( Ref 18 ). The velocity of the slurry not only affects the rate of mechanical damage of a material but the corrosion rate as well. Above a threshold velocity, corrosion products can effectively be stripped from an alloy, thus making available a new surface that is susceptible...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006791
EISBN: 978-1-62708-295-2
... the appearance of the first scuffing marks Source: Ref 138 Fig. 19 Draw-bead friction test. (a) Configuration of deformation geometry. (b) outline of the test assembly. Adapted from Ref 74 Fig. 20 Configuration of tensile strip test. Adapted from Ref 118 Fig. 21 Strip...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001813
EISBN: 978-1-62708-180-1
... contact. During fatigue testing, the power-type counterbalance spring shown in Fig. 16(a) fractured at the two locations indicated by the arrows. The spring had been formed from hardened-and-tempered carbon steel strip and subsequently subjected to a phosphating treatment. In the normal manufacture...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001839
EISBN: 978-1-62708-241-9
... at the time of uncoiling (coil unwinding), when the operating stresses are presumably well below the yield point of the material. The depth of cracking was quite varied in manifestation and included fine superficial hairline cracks as well as complete through thickness cracking of the steel strip. Electron...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1