WO1999015305A1 - A roll assembly for use at high temperature and method of making same - Google Patents
A roll assembly for use at high temperature and method of making same Download PDFInfo
- Publication number
- WO1999015305A1 WO1999015305A1 PCT/US1998/019697 US9819697W WO9915305A1 WO 1999015305 A1 WO1999015305 A1 WO 1999015305A1 US 9819697 W US9819697 W US 9819697W WO 9915305 A1 WO9915305 A1 WO 9915305A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- roll body
- roll
- trunnions
- trunnion
- assembly
- Prior art date
Links
- 238000004519 manufacturing process Methods 0.000 title description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 36
- 239000000956 alloy Substances 0.000 claims abstract description 36
- 230000007423 decrease Effects 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 38
- 229910000907 nickel aluminide Inorganic materials 0.000 claims description 37
- NPXOKRUENSOPAO-UHFFFAOYSA-N Raney nickel Chemical compound [Al].[Ni] NPXOKRUENSOPAO-UHFFFAOYSA-N 0.000 claims description 35
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims description 14
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- BIJOYKCOMBZXAE-UHFFFAOYSA-N chromium iron nickel Chemical compound [Cr].[Fe].[Ni] BIJOYKCOMBZXAE-UHFFFAOYSA-N 0.000 claims description 3
- 230000003247 decreasing effect Effects 0.000 claims description 3
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 claims 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims 4
- 229910052782 aluminium Inorganic materials 0.000 claims 4
- 229910052796 boron Inorganic materials 0.000 claims 4
- 229910052804 chromium Inorganic materials 0.000 claims 4
- 239000011651 chromium Substances 0.000 claims 4
- 229910052750 molybdenum Inorganic materials 0.000 claims 4
- 239000011733 molybdenum Substances 0.000 claims 4
- 229910052759 nickel Inorganic materials 0.000 claims 4
- 229910052726 zirconium Inorganic materials 0.000 claims 4
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims 2
- 238000012546 transfer Methods 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 description 9
- 238000000034 method Methods 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000003466 welding Methods 0.000 description 5
- 230000007774 longterm Effects 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 239000000945 filler Substances 0.000 description 3
- 229910021326 iron aluminide Inorganic materials 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 239000001995 intermetallic alloy Substances 0.000 description 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000010297 mechanical methods and process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000000135 prohibitive effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0012—Rolls; Roll arrangements
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/18—Construction of the conveyor rollers ; Materials, coatings or coverings thereof
- C03B35/181—Materials, coatings, loose coverings or sleeves thereof
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B35/00—Transporting of glass products during their manufacture, e.g. hot glass lenses, prisms
- C03B35/14—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands
- C03B35/16—Transporting hot glass sheets or ribbons, e.g. by heat-resistant conveyor belts or bands by roller conveyors
- C03B35/18—Construction of the conveyor rollers ; Materials, coatings or coverings thereof
- C03B35/186—End caps, end fixtures or roller end shape designs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
- F27D3/026—Skids or tracks for heavy objects transport or conveyor rolls for furnaces; roller rails
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/008—Rollers for roller conveyors
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0081—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for slabs; for billets
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/50—Glass production, e.g. reusing waste heat during processing or shaping
- Y02P40/57—Improving the yield, e-g- reduction of reject rates
Definitions
- Roll assemblies are used in a variety of high-temperature applications such as steel manufacturing including, for example, a steel mill furnace roll which is used to move steel slabs through a heat treatment furnace.
- the roll assemblies include a generally cylindrical roll body and heads or trunnions at opposing ends of the roll body.
- the trunnions are rigidly attached to the roll body by weld fabrication or standard mechanical methods.
- Figure 1 is a schematic diagram of a prior art welded roll assembly 10.
- a roll body 12 has trunnions 14 and 16 attached by welds 18 to the roll body 12.
- the roll body 12 is supported and rotated by the trunnions 14 and 16 which act as a transition shape from the roll body 12 to supporting roll shafts.
- the trunnion attachments are intended to be rigid, high strength connections.
- the trunnions and the roll body are the same material.
- the dissimilar materials may have different coefficients of linear thermal expansion.
- the dissimilar materials expand different amounts when heated to a desired operating temperature.
- the stresses from the dissimilar thermal expansion cause high design stresses which, in turn, lead to early failure of the roll assembly.
- the roll body made of a high heat resistant alloy such as an expensive nickel aluminide alloy, while the trunnions are made of a different, more economical material.
- Nickel aluminides alloys are nickel-aluminum (Ni 3 Al) intermetallic alloys which were developed for high temperature commercial applications such as forging dies and heat treatment furnace fixtures (Sikka, V., "Commercialization of Nickel and Iron Aluminides, International Symposium on Nickel and Iron Aluminides: Processing, Properties and Applications, Proceedings from Materials Week '96, ASM International, 1996, pp 361 -375).
- Nickel aluminide furnace rolls are an improvement over rolls made from standard heat resistant metals. The nickel aluminide furnace rolls do not develop a defect called a "blister,” they do not distort in service, they do not scratch the steel slab that passes over the top of them, and they do not cause oxide pick-up on the steel slabs.
- the nickel aluminide rolls improve product quality, increase furnace productivity, reduce maintenance downtime and reduce maintenance costs.
- a comparison of the approximate chemical compositions of some nickel aluminide alloys and conventional heat resistant chromium-nickel-iron alloys are listed in Table I below.
- the weld filler metal still does not accommodate the stresses in the roll assembly.
- the nickel aluminide weld has an extremely low ductility of less than 5% elongation as measured in short-term high-temperature tensile tests in the range of 600°C-1000°C (1 100°F-1830°F).
- the nickel aluminide weld filler metal is susceptible to brittle fracture and the weld filler metal is not satisfactory for long term performance.
- the present invention relates to a roll assembly and a method for making the roll assembly.
- the roll assembly comprises a generally cylindrical roll body and first and second heads or trunnions which each engage the opposing ends of the roll body.
- the ends of the roll body have a first diameter.
- An end of each trunnion has a second or outside diameter such that the end of each trunnion engages the end of the roll body. It is within the contemplated scope of the present invention, that in certain embodiments, the ends of the roll body fit inside the trunnions, while in other embodiments, the end of each trunnion fits inside the ends of the roll body.
- a precisely determined or controlled gap exists between the diameter of the roll body and the diameter of the trunnion.
- the roll body is made of a first material having a first coefficient of linear thermal expansion and the trunnions are made of a second material having a second coefficient of linear thermal expansion.
- the controlled gap is large enough at room temperature so that the size of the gap decreases as the roll assembly reaches its desired operating temperatures and a small gap remains at the operating temperature. Thus, no stress is induced in the roll body from the expansion of the trunnion.
- a controlled interference fit is created at operating temperatures between the roll body and the trunnions, while still maintaining an acceptable von Mises effective stress for the roll assembly integrity during the useful service life of the roll assembly.
- the roll body and trunnions are mechanically connected together when the roll assembly is not at the high temperature operating conditions.
- the mechanical connection prevents the roll assembly from becoming unassembled at colder temperatures without restraining expansion of the materials of the roll body and trunnions when heated, in the embodiments where a gap intentionally remains at high operating temperatures, the mechanical connection also provides the means for transferring the load on the roll body to the trunnions. In the embodiments where a controlled interference fit develops at operating temperatures, the interference fit transfers the load and the reliance on mechanical connection is greatly reduced.
- the present invention provides an improved and economically fabricated roll assembly for use at high temperatures.
- a nickel aluminide heat treatment furnace roll body is attached to trunnions made of less expensive alloys.
- a controlled gap between the trunnion and roll body is manufactured at room temperature.
- Mechanical connectors such as pins, are used to connect the roll body and trunnions at room temperature.
- the trunnions expand more than the roll body. The difference in thermal expansion is accommodated in different embodiments.
- a gap remains at operating temperature and the mechanical connectors are used to transfer all of the load.
- a controlled interference is created between the roll body and the trunnions to transfer the load.
- the mechanical connectors provide the roll assembly with an additional safety measure to accommodate the differential stresses between the roll body and the trunnions. Furthermore, at a desired operating temperature, the mechanical connectors are reasonably loose so that differential thermal expansion can take place without restraint.
- the present invention is also useful with other high temperature materials and in situations where the material with the lower linear thermal expansion is used for the trunnions instead of the roll body.
- Fig. 1 is a schematic illustration of a prior art roll assembly.
- the different linear thermal expansions for the roll body and the trunnions are accommodated by having a controlled gap between the roll body and trunnions at room temperature.
- Mechanical connectors are used to connect the trunnions to the roll body and to maintain the roll assembly integrity at room temperature.
- the mechanical connectors are loose enough to allow differences in thermal expansion to occur without restraint.
- the controlled gap decreases or closes on heating of the roll assembly to the desired operating temperature without creating unacceptably high von Mises stresses in the roll body or trunnions.
- the gap is manufactured so that, on heating, a small gap remains and the mechanical connectors transmit all of the service load.
- the gap is manufactured so that, on heating, the gap closes and a tight interference fit develops between the roll body and the trunnions.
- the interference fit transmits the service load while the mechanical connectors act as a secondary means of load transfer.
- the compositions of the materials comprising roll body and the trunnions are selected to meet industry service requirements and to provide an economic roll fabrication. Examples of this invention are provided for heat treatment furnace rolls operated at approximately 840°C-1010°C (1550°F-1850°F). However, it should be understood that the scope of this present invention is not to be limited to the examples given herein, and that these examples do not limit the present invention to this particular high temperature use.
- FIG. 2 shows a schematic illustration of one end of a roll assembly 20 of the present invention which comprises a roll body 22 and a trunnion 30.
- the roll assembly 20 generally comprises a trunnion 30 at each end of the roll body 22.
- the roll body 22 has a generally cylindrical shape and has opposing ends 24.
- only one end 24 of the roll body is shown.
- the opposing end (not shown) of the roll body 22 can have substantially the same or a different shape, depending on the end use requirements for the roll assembly.
- the end 24 of the roll body 22 is counterbored to a desired inside diameter 26.
- the trunnion 30 has a first end 34 which is machined to a desired outside diameter 36.
- the first end 34 of the trunnion 30 fits within, or is axially positioned in, the counterbored inside diameter 26 of the roll body 22.
- the first end 34 of the trunnion 30 is axially positioned within the first end 24 of the roll body 22 and the inner diameter 26 of the end 24 of the roll body 22 is greater than the outer diameter 36 of the first end 34 of the trunnion 30.
- first end of the trunnion axially positioned outside of the first end of the roll body and the outer diameter of the end of the roll body is smaller than the inner diameter of the first end of the trunnion.
- a desired gap 40 exists between the inside diameter 26 of the roll body 22 and the outside diameter 36 of the trunnion 30.
- the length of the gap 40 is determined by the difference between the diameter 26 of the roll body 24 and the diameter 36 of the trunnion 30.
- the roll body ends 24 of a roll body 22 made of the IC-221 M nickel aluminide alloy are counterbored to an inside diameter of 327.36 mm (12.888 in.).
- the outside diameter 36 of the HK trunnions 30 are machined to a smaller diameter of 326.90 mm (12.87 in.).
- the roll body 22 and trunnions 30 are connected together without an interference fit such as for example, when the difference in expansion between the HK alloy trunnion 30 and the nickel aluminide alloy roll body 22 is about 0.64 mm (0.025 in.).
- the gap 40 is manufactured to a minimum of 0.64 mm (0.025 in.) at room temperature, no interference fit will develop at operating temperature.
- the trunnions 30 are secured to the roll body 20 by a plurality of mechanical connectors 44 such as pins, as seen in Figs. 4 and 5.
- the end 24 of the roll body 22 has a plurality of radially extending openings 28 extending therethrough.
- the end 34 of the trunnion 30 has a plurality of radially extending bores 38.
- the mechanical connectors 44 are positioned through the radially extending openings 28 in the end 24 of the roll body 22. Each opening 28 is in radial alignment with a corresponding radially extending bore 38 in the end 34 of the trunnion 30.
- the bore 38 may terminate at a distal end 39.
- the mechanical connector 44 is positioned in the opening 28 of the roll body 22 and in the bore 38 of the trunnion 30.
- the mechanical connector 44 has a distal end 46 which contacts the distal end 39 of the bore 38. It is also within the contemplated scope of the present invention that the bores 38 may extend through the end 34 of the trunnion 30.
- the mechanical connectors 44 may extend beyond the trunnion 30 and be fastened with a snap ring (not shown) or other locking device.
- the mechanical connectors 44 have a desired diameter to provide a reasonably loose fit in the roll body 26 and in the trunnions 30 at room temperature so that any restraint of the intended thermal expansion is avoided during furnace heating and cool down periods.
- the mechanical connectors 44 are positioned in the openings 28 and bores 38 when the roll assembly 20 is at room temperature. There is no tight interference fit between the roll body 22 and the trunnions 30 at room temperature. Rather, the mechanical connectors 44 loosely connect the roll body 22 to the trunnions 30. As the roll body 22 and trunnions 30 are heated, there is room for expansion of the roll body 22 and trunnions 30.
- the mechanical connectors 44 maintain the alignment of the roll body 22 with the trunnions 30 and also support any stresses which may be present at room temperature.
- the mechanical connectors 44 in the openings 28 and the bores 38 also provide support to the roll body- trunnion joint when the roll assembly 20 is at room temperature.
- the mechanical connectors 44 may also accommodate any differential stresses which are not accounted for by the interference fit between the roll body 22 and the trunnions 30.
- other methods for mechanically attaching the roll body 22 to the trunnions 30 at room temperature are possible.
- the mechanical connectors 44 are designed to withstand all of the mechanical loads experienced by the roll assembly 30.
- the mechanical connectors 40 still allow for the difference in thermal expansion between the alloy trunnion 30 and the nickel aluminide roll body 22 to occur without restraint.
- the advantages of avoiding the interference fit are that the manufacturing tolerances of the controlled gap can be much broader thereby simplifying the machining processes prior to assembly, and any concern over the long-term integrity of an interference fit is eliminated.
- the compositions and the sizes of the mechanical connectors are chosen to be compatible with the compositions and sizes of the trunnions and roll bodies and that such variations are within the scope of the present invention.
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020007003050A KR20010024234A (en) | 1997-09-22 | 1998-09-21 | A roll assembly for use at high temperature and method of making same |
JP2000512660A JP2003517537A (en) | 1997-09-22 | 1998-09-21 | Roll assembly for high temperature use and method of making same |
BR9812358-0A BR9812358A (en) | 1997-09-22 | 1998-09-21 | Roller set for use at high temperatures and method for its manufacture |
CA002297917A CA2297917A1 (en) | 1997-09-22 | 1998-09-21 | A roll assembly for use at high temperature and method of making same |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US5969597P | 1997-09-22 | 1997-09-22 | |
US60/059,695 | 1997-09-22 | ||
US15764198A | 1998-09-21 | 1998-09-21 | |
US09/157,641 | 1998-09-21 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO1999015305A1 true WO1999015305A1 (en) | 1999-04-01 |
WO1999015305A8 WO1999015305A8 (en) | 2000-03-23 |
Family
ID=26739067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/US1998/019697 WO1999015305A1 (en) | 1997-09-22 | 1998-09-21 | A roll assembly for use at high temperature and method of making same |
Country Status (4)
Country | Link |
---|---|
JP (1) | JP2003517537A (en) |
KR (1) | KR20010024234A (en) |
CA (1) | CA2297917A1 (en) |
WO (1) | WO1999015305A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1473534A1 (en) * | 2003-04-28 | 2004-11-03 | Vesuvius Crucible Company | Roll and drive assembly for its rotation |
WO2007062713A1 (en) * | 2005-10-20 | 2007-06-07 | Siemens Vai Metals Technologies Gmbh & Co | Strand guide reel |
CN102269517A (en) * | 2011-08-01 | 2011-12-07 | 长兴县科奥陶业有限公司 | Roller bar driving device for roller kiln |
WO2012096937A1 (en) * | 2011-01-10 | 2012-07-19 | Arcelormittal Investigacion Y Desarrollo S.L. | Method of welding nickel-aluminide |
WO2016083176A1 (en) * | 2014-11-28 | 2016-06-02 | Sms Group Gmbh | Uncooled furnace roll and method for producing an uncooled furnace roll |
WO2017046253A1 (en) * | 2015-09-18 | 2017-03-23 | Vesuvius France Sa | Conveyor roll assembly, torque transmission and support means and process for making a conveyor roll assembly used in a high temperature environment |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3673922B2 (en) * | 2002-11-29 | 2005-07-20 | 伊東電機株式会社 | Roller device |
CN103753128A (en) * | 2013-12-20 | 2014-04-30 | 柳州正菱集团有限公司 | Process of milling holes in two sides of automobile load rear steel plate spring flying ring |
CN110102983B (en) * | 2019-06-01 | 2023-12-22 | 浙江明贺钢管有限公司 | High-temperature-resistant dry cantilever roller and preparation process thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2988803A (en) * | 1957-12-21 | 1961-06-20 | Heraeus Schott Quarzschmelze | Feed roller for rolling mill |
US3751195A (en) * | 1971-08-18 | 1973-08-07 | Pittsburgh Steel Corp | Heat-treating-furnace roll and method of heat-treating metal strip therewith |
US4484959A (en) * | 1981-07-17 | 1984-11-27 | Creusot-Loire | Process for the production of a composite metal part and products thus obtained |
US4925014A (en) * | 1987-02-14 | 1990-05-15 | Pose-Marre Edelstahlwerk Gmbh | Transport roller for glass cooling passages |
US5469619A (en) * | 1993-04-20 | 1995-11-28 | Sonoco Products Company | Tubular core assembly having inside-diameter reducing end members secured by mechanical interlocking member |
US5813962A (en) * | 1996-06-28 | 1998-09-29 | Kawasaki Steel Corporation | Forged roll for rolling a seamless steel pipe |
-
1998
- 1998-09-21 JP JP2000512660A patent/JP2003517537A/en active Pending
- 1998-09-21 KR KR1020007003050A patent/KR20010024234A/en not_active Application Discontinuation
- 1998-09-21 CA CA002297917A patent/CA2297917A1/en not_active Abandoned
- 1998-09-21 WO PCT/US1998/019697 patent/WO1999015305A1/en not_active Application Discontinuation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2988803A (en) * | 1957-12-21 | 1961-06-20 | Heraeus Schott Quarzschmelze | Feed roller for rolling mill |
US3751195A (en) * | 1971-08-18 | 1973-08-07 | Pittsburgh Steel Corp | Heat-treating-furnace roll and method of heat-treating metal strip therewith |
US4484959A (en) * | 1981-07-17 | 1984-11-27 | Creusot-Loire | Process for the production of a composite metal part and products thus obtained |
US4925014A (en) * | 1987-02-14 | 1990-05-15 | Pose-Marre Edelstahlwerk Gmbh | Transport roller for glass cooling passages |
US5469619A (en) * | 1993-04-20 | 1995-11-28 | Sonoco Products Company | Tubular core assembly having inside-diameter reducing end members secured by mechanical interlocking member |
US5813962A (en) * | 1996-06-28 | 1998-09-29 | Kawasaki Steel Corporation | Forged roll for rolling a seamless steel pipe |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004097319A2 (en) * | 2003-04-28 | 2004-11-11 | Vesuvius Crucible Company | Roller and rotational driving device |
WO2004097319A3 (en) * | 2003-04-28 | 2004-12-16 | Vesuvius Crucible Co | Roller and rotational driving device |
EP1473534A1 (en) * | 2003-04-28 | 2004-11-03 | Vesuvius Crucible Company | Roll and drive assembly for its rotation |
WO2007062713A1 (en) * | 2005-10-20 | 2007-06-07 | Siemens Vai Metals Technologies Gmbh & Co | Strand guide reel |
US7926547B2 (en) | 2005-10-20 | 2011-04-19 | Siemens Vai Metals Technologies Gmbh & Co. | Strand guiding roller |
CN101291759B (en) * | 2005-10-20 | 2011-11-09 | 西门子Vai金属技术有限责任公司 | Continuous casting guide roller |
US9623509B2 (en) | 2011-01-10 | 2017-04-18 | Arcelormittal | Method of welding nickel-aluminide |
WO2012096937A1 (en) * | 2011-01-10 | 2012-07-19 | Arcelormittal Investigacion Y Desarrollo S.L. | Method of welding nickel-aluminide |
CN102269517A (en) * | 2011-08-01 | 2011-12-07 | 长兴县科奥陶业有限公司 | Roller bar driving device for roller kiln |
WO2016083176A1 (en) * | 2014-11-28 | 2016-06-02 | Sms Group Gmbh | Uncooled furnace roll and method for producing an uncooled furnace roll |
WO2017046253A1 (en) * | 2015-09-18 | 2017-03-23 | Vesuvius France Sa | Conveyor roll assembly, torque transmission and support means and process for making a conveyor roll assembly used in a high temperature environment |
US10287101B2 (en) | 2015-09-18 | 2019-05-14 | Vesuvius France S.A. | Conveyor roll assembly, torque transmission and support means and process for making a conveyor roll assembly used in a high temperature environment |
RU2718039C2 (en) * | 2015-09-18 | 2020-03-30 | Везувиус Франс Са | Conveyor roll assembly, torque and support transmission device and conveyor roll assembly method used in high-temperature medium |
AU2016324980B2 (en) * | 2015-09-18 | 2020-09-17 | Vesuvius France Sa | Conveyor roll assembly, torque transmission and support means and process for making a conveyor roll assembly used in a high temperature environment |
TWI725989B (en) * | 2015-09-18 | 2021-05-01 | 法商維蘇威法國公司 | Conveyor roll assembly for use at high temperature and process for making the same |
Also Published As
Publication number | Publication date |
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CA2297917A1 (en) | 1999-04-01 |
KR20010024234A (en) | 2001-03-26 |
JP2003517537A (en) | 2003-05-27 |
WO1999015305A8 (en) | 2000-03-23 |
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