1_morgoil india symposium 2006 introduction - gfr only]
TRANSCRIPT
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MORGOIL BEARING SYMPOSIUMIndia – April 2007
WELCOME!!!
Gabriel RoyoVice President & GM
Morgoil Bearing Division
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A family business since 1888
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Morgan History
Company founded in 1888Over 450 Morgan continuous mills worldwideInvented “MORGOIL” oil film bearing in the 1930’s“MORGOIL” bearing technology improvementsRecognized as the world leader in metal rolling technologyRevolutionized the wire rod industry with the introduction of the “No-Twist” mill, Stelmor, RSM, etc.
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R Long products: Rod and Bar Mills
450+ MORGAN
Rod / Bar Mills
Installations
Worldwide
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R Flat Products: Morgoil Bearings
Morgoil Bearings:
421 Hot Mills operating 1623 stands
1046 Cold Mills operating 1930 Stands
6 continents
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History - 1930’s Oil Film Bearing Application
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History – Original MORGOIL Bearings
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R Major Morgoil Developments
1929 Morgoil oil film bearing invented1932 Morgoil oil film bearing applied to production mill1937 Orifices introduced to regulate oil supply1937 Straight neck (loose sleeve) Morgoils discontinued1950 TR - Oil film thrust replaced by roller bearing thrust1958 X type neck seal introduced1961 Hydrostatic introduced 1964 QC locking arrangement introduced1966 2-pad hydrostatic1980 DF neck seal introduced1980 KL Morgoil introduced
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R Major Morgoil Developments (cont)
1982 Dual durometer coolant guard introduced1982 Mechanical and hydraulic bayonet locking arrangements1987 SN bearing applied 1990 Morgoil machining cell on line1991 Spherical pad hydrostatic2000 KLX Bearing Design2003 LD Locks conversions2004 HM / HL locks conversions2004 HD Seals
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R Leaders in Technology: MORGOIL Test Stand
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Construction of MORGOIL Bearing Test Stand
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MORGOIL Test Stand
Designed for the development of the KLX bearing
Allows testing of a full size 28”-76 KLX bearing.
Cantilever design so the bearing can be an exact duplicate of what would be installed in a mill.
Full size HAGC cylinder for loading (900 tons)Speed up to 1000 RPM120 channels of instrumentation for pressure, temperature, strain, flow, torque, and RPM Oil film measurement (+/-2.4 microns)Highly controllable lubrication system (90F to 120F temperature and 0 to 25 gpm flowHydrostatic assist up to 30,000 psi with variable flow
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Morgan Worcester • Morgoil Pittsburgh • MORGOIL Chicago •Morgan-EuropeMorgan do Brasil • Morgan-India • Morgoil-Japan • Morgan-China
Morgoil ServiceMorgan Worldwide locations
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R Morgan Worcester - USA
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R Morgan Shanghai - China
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R Morgan Shanghai - China
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Morgan Europe – Sheffield – U.K.
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Morgan India – Bombay - India
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Morgan do Brasil
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R MORGOIL® KLX Bearing
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R History – KL “Keyless Bearing”
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KLX Sleeve Technology
The thickness has been reduced and the internal flange removed
This sleeve has a more consistent cross section, making the loading on the sleeve more uniform
New design allows the sleeve to better conform to the pressure field produced by the oil film
Distributes the load over a larger areaThe result is a higher average bearing pressure: 4000 psi (27.6 MPa) under normal operational conditions and 4351 psi (30 MPa) under optimum conditionsKL is 3556 (24.5 MPa)
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KLX Bearing
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KLX Operating Envelope
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KL vs KLX - Rating Comparison
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KLX – KL Comparison for New Hot Strip MillCase Study: 7 stand HSM
7 Finishers (1 future)
Stands F1 to F7Total Separating Force: 5 200 tonnes maxAvoid need for hydrostaticsMaximum MORGOIL Speed: 66.7 RPMBearing choices:
54”-75 KL – Too small54”-76 KLX56”-84 KL - Marginal
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HSM Bearing Comparison
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54” KLX to 56”-KL Rating Comparison
54”-76 KLX 56”-84 KL2,755 M. tons Max
Hydrodynamic Rating2,611 M. tons Max
Hydrodynamic Rating
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54” KLX vs 56” KL Chock Comparison
54”-76 KLX 56”-84 KL
29 mm narrower chock123 mm shorter chock
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54” KLX vs 56” KL Roll Neck Comparison
54”-76 KLX 56”-84 KL
58 mm shorter from roll barrel to bearing centerline26 mm greater roll turndown
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KLX vs KL Stand Size Comparison
54”-76 KLX 56”-84 KL
116 mm narrower stand centerline150 mm narrower overall
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54”-76 KLX vs 56”-84 KL Comparison
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KLX Bearing Design SummaryHighest capacity of any mill back up bearingSmaller any other bearing of same capacity
Less space requirementsStiffer
Reduced Initial CostSmaller parts, smaller millReduced size lubrication system
Lower operating CostReduced parts countReduced lubrication requirements
Can be easily applied to existing mill designs
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KLX Reference Mills1) Salzgitter 2-Std Skin Pass 46”-66DLZ Germany VAI2) Rasselstein 2-Stand DCR 46”-88 Germany SMS3) Ugine 2-High Skin Pass 28” France BWG4) Nanjing Plate/Steckel Mill 70”-86 PRC VAI5) Baoshan 5 m Rev. Plate Mill 80”-76 PRC SMS6) POSCO #2 Plate Mill 74”-76 Korea MH7) Laiwu 7-Stand HSM 48”-76 PRC DHI8) Tianjin 2-Std Rev Plate 70”-80 PRC CFHI9) Chongquing 2-Hi Rougher 38”-86 PRC CE10) MaAnshan Rev. Rougher 58”-76 PRC SMS11) Shagang 5 m Plate Mill 80”-76 PRC VAI12) Taiyuan Iron & Steel HSM 56 & 58” PRC SMS13) Tangshan Xinfeng HSM 52”-76 PRC CE14) Tiante HSM 52” & 44”-76 PRC CE15) Voest-Alpine 5-Std TCM 50”-76 DLZ Austria VAI16) Angang Steel 5 m Plate 80”-76 PRC SMS17) Shangdong Rizhao HSM 52”-76 PRC CE18) Mittal Polska HSM 58”-76 Z Poland VAI19) Bhushan R2 54”-76 India SMS20) Iskenderun I&S HSM 52”-76 Turkey M&H
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KLX Reference Mills21) Pudong 4.3 m Plate Mill 74”-76 PRC SMS22) Laiwu 4.3 m Plate Mill 74”-86 PRC VAI23) JSPL 4.3 m Plate Mill 74”-86 India VAI24) SeverCorr HSM 54” & 52” USA SMS25) INI Steel 2-Hi Rougher 48”-76 South Korea SMS26) Handan HSM Rougher 58”-76 PRC SMS27) Voest-Alpine HSM Upgrade 54”-76 Austria VAI28) POSCO KH-3; New R2 Stand 58”-86 Korea VAI29) POSCO KH-3; Finishing Mill 54” & 52” Korea M&H30) Essar 5-m Plate Mill 82”-72 India VAI31) Thyssen HSM Upgrade 52”-76 Germany SMS32) Haixin Hot Strip Mill 48”-76 PRC DHI33) TaiShan 2-Std Plate Mill 1450-76 PRC CFHI34) Changsu YiCheng Plate Mill 48”-86 PRC35) MMMK 5.0 m Plate Mill 80”-86 Russia SMS36) Minmetals Yinkou 5.0m Plate 80”-86 PRC SMS37) Baoshan #2 5.0 m Plate Mill 80”-76 PRC SMS38) Essar CSP Mill #1 54”-76 India SMS39) HeNan HanYe Plate Mill 74”-86 PRC CFHI 40) Tangshan Guofeng #2 HSM 52” & 48”-76 PRC CE
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Morgoil Bearings Symposium
Morgoil Bearing – HSM VideoReview Seminar Technical Agenda