US3331123A - Method and apparatus for producing an oxide-free hot-formed product - Google Patents

Method and apparatus for producing an oxide-free hot-formed product Download PDF

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Publication number
US3331123A
US3331123A US540378A US54037866A US3331123A US 3331123 A US3331123 A US 3331123A US 540378 A US540378 A US 540378A US 54037866 A US54037866 A US 54037866A US 3331123 A US3331123 A US 3331123A
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United States
Prior art keywords
hot
casting
cast metal
cast
metal
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Expired - Lifetime
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US540378A
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English (en)
Inventor
Daniel B Cofer
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Southwire Co LLC
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Southwire Co LLC
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Publication date
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Priority to US540378A priority Critical patent/US3331123A/en
Priority to BE696661D priority patent/BE696661A/xx
Application granted granted Critical
Publication of US3331123A publication Critical patent/US3331123A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/04—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills for de-scaling, e.g. by brushing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills

Definitions

  • the method and apparatus are disclosed in terms of a casting means and a hot-forming means positioned for a cast metal to pass directly from the casting means to the hot-forming means through a cleaning means for removing surface oxides from the cast metal with rotating brushes or a plurality of scrapers.
  • This invention relates to the hot-forming of metal and, more particularly to a method of and apparatus for producing a substantially oxide-free hot-formed product directly from molten metal.
  • This oxide coating is undesirable because it tends to become imbedded in the metal during hot-forming so as to reduce the strength, ductility and conductivity of the resulting hot-formed product. Moreover, this oxide coating produces a drab, unsightly surface on the resulting hot-formed product which often interferes with subsequent working, such as by wire drawing, of the hot-formed product.
  • a process for producing a hot-formed product directly from molten metal must provide for removing or preventing the formation of an oxide coating on the cast metal between the casting means and the hot-forming means if a substantially oxide-free hot-formed product is to be produced.
  • the invention disclosed herein produces a substantially oxide-free hot-formed product directly from molten metal by providing for the removal of an oxide coating from the cast metal in a manner not obtainable in the prior art without the use of relatively expensive and dilficult to use and maintain cleaning or reducing devices.
  • the invention disclosed herein is embodied in apparatus comprising a casting means of conventional type, a hot-forming means of conventional type, and a relatively inexpensive cleaning means for mechanically removing an oxide coating from the cast metal as the cast metal passes between the casting means and the hot-forming means.
  • the cleaning means effectively removes any oxide coating on the cast metal prior to hot-forming and since the removal of the oxide coating is mechanically accomplished, the invention avoids the relatively expensive and difficult to use and maintain prior art cleaning or reducing devices which have been used to provide an environment between the casting means and the hot-forming means for removing or preventing the formation of an oxide coating.
  • FIG. 1 is a schematic presentation of the invention showing the elements thereof and their relationship to each other;
  • FIG. 2 is a sectional view of one embodiment of the cleaning means of the invention taken substantially along line 22 in FIG. 1;
  • FIG. 3 is a sectional view of a second embodiment of the cleaning means of the invention taken along the same line in FIG. 1 as FIG. 2.
  • the invention disclosed herein is best understood as comprising a casting means C, a hot-forming means H, and a cleaning or oxide removal means L.
  • the casting means C is of conventional design comprising a casting wheel 10, an idler wheel 11 and band 12 enclosing the casting wheel 10 and the idler wheel 11.
  • the casting means C is shown only schematically because it will be understood that the band 12 serves to define a mold (not shown) with an annular groove (not shown) in the casting wheel 10 into which molten metal is poured and from which a cast bar 13 is ejected as shown in FIG. 1.
  • the casting means C and the hot-forming means H are positioned relative to each other so that the cast bar 13 passes directly from the casting means C to the hot-forming means H without substantial cooling thereof as is conventional in the production of a hot-formed product directly from molten metal.
  • the hotforming means H is of conventional type in that it includes a plurality of roll stands 14 positioned to receive and hotform the cast bar 13 in sequence.
  • the casting means C and the hotforming means H are combined with the cleaning means L positioned between the casting machine C and the hotforming means H.
  • the cleaning means L may be any device which will engage the cast bar 13 as it passes between the casting means C and the hot-forming means H and mechanically remove any oxide coating on the cast bar 13 subsequent to the cast bar 13 :being ejected from the casting means C and prior to the cast bar 13 being received in the hot-forming means H. Two embodiments of the cleaning means L are disclosed herein.
  • FIG. 2 an embodiment of the cleaning means L comprising a plurality of cylindrical wire brushes 16 positioned within the frame 15 of the cleaning means L.
  • Each wire brush 16 includes a shaft 17 having its ends journalled in conventional manner in an inner wall -18 formed within the frame 15 of the cleaning means L.
  • a plurality of rigid wire bristles 19 extend from each of the shafts 17 of the wire brushes 16 and the wire brushes 16 are positioned within the frame 15 of the cleaning means L so that the bristles 19 of the wire brushes 16 enclose the cast bar 13 as it passes through the cleaning means L.
  • the enclosing of the cast bar 13 by the bristles 19 of the wire brushes 16 is accomplished by positioning three wire brushes 16 to form a triangular opening conforming to the triangular cross section of the cast bar '13 and through which the cast bar 13 passes.
  • the positioning of the wire brushes 16 is varied if the cast bar 13 has a circular, square, or other cross section which is not triangular.
  • the wire brushes 16 are disposed relative to each other along the length of the cast bar 13 so that the Wire brushes 16 do not interfere with each other. More importantly, it will be understood that when the wire brushes 16 are rotated at a proper rotational speed by any convenient driving mechanism such as motors positioned on the frame 15 to drive one end of each shaft 17, the bristles 19 of the wire brushes 16 engaging the cast bar 13 move relative to the surface of the cast bar 13 and serve to remove from the surface of the cast bar 13 any oxide coating thereon.
  • a plurality of scrapers 22 formed of tool steel or the like are positioned within the frame 15 of the cleaning means L so that together they form a triangular opening 23 conforming to the cross sectional shape of the cast bar 13.
  • Each scraper 22 is fixedly positioned within the frame 15 of the cleaning means L by extending a pin 26 from the scraper 22 to an inner wall 18 within the frame 15.
  • each scraper 22 has those edges 24 defining its innermost surface 25 sharpened in conventional manner.
  • the invention disclosed herein provides an oxide-free hotformed product by minimizing the formation of an oxide coating on the cast bar .13 through the positioning of the hot-forming means H relative to the casting means C and by providing a cleaning means L between the hot-forming means H and the casting means C which mechanically removes any oxide coating on the cast bar 13 as the cast bar 13 passes between the casting means C and the hotforming means H.
  • a cleaning means L between the hot-forming means H and the casting means C which mechanically removes any oxide coating on the cast bar 13 as the cast bar 13 passes between the casting means C and the hotforming means H.
  • casting means for easting moltenv metal to obtain cast metal
  • hot-forming means for hot-forming said cast metal into a hot-formed product, said hot-forming means being positioned to receive said cast metal directly from said casting means without substantial cooling of said cast metal occurring between said casting means and said hot-forming means;
  • cleaning means positioned between said casting means and said hot-forming means for mechanically removing oxides from said cast metal as said cast metal passes between said casting means and said hot-forming means, said cleaning means consisting of a plurality of scrapers in a configuration which conforms to the periphery of said cast metal.
  • said hot-forming means includes a plurality of roll stands positioned to receive and hot-form said cast metal in sequence.
  • said hot-forming means includes a plurality of roll stands positioned to receive and hot-form said cast metal in sequence.
  • a method of producing a hot-formed product directly from molten metal the steps of casting molten metal in a casting means to obtain cast metal, passing said cast metal to a hot-forming means without substantial cooling of said cast metal between said casting means and said hot-forming means, mechanically removing oxides from said cast metal between said casting means and said hot-forming means by passing said cast metal through rotating wire brushes in a configuration which conforms to the periphery of said cast metal, and hot-forming said cast metal into a hotformed product in said hot-forming means.
  • a method of producing a hot-formed product directly from molten metal the steps of casting molten metal in a casting means to obtain cast metal, passing said cast metal to a hot-forming means without substantial cooling of said cast metal between said casting means 1 and said hot-forming means, mechanically removing oxides from said cast metal between said casting means and said hot-forming means by passing said cast metal through a plurality of scrapers in a configuration which conforms to the periphery of said cast metal, and hot-forming said cast metal into a hot-formed product in said hot-forming means.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
US540378A 1966-04-05 1966-04-05 Method and apparatus for producing an oxide-free hot-formed product Expired - Lifetime US3331123A (en)

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Application Number Priority Date Filing Date Title
US540378A US3331123A (en) 1966-04-05 1966-04-05 Method and apparatus for producing an oxide-free hot-formed product
BE696661D BE696661A (2) 1966-04-05 1967-04-05

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469620A (en) * 1967-04-19 1969-09-30 Southwire Co Casting process
FR2010493A1 (2) * 1968-05-31 1970-02-20 Westinghouse Electric Corp
JPS4837905B1 (2) * 1969-09-05 1973-11-14
US4066475A (en) * 1974-09-26 1978-01-03 Southwire Company Method of producing a continuously processed copper rod
US4068705A (en) * 1975-01-10 1978-01-17 Southwire Company Forming apparatus with roller guide tube
US4211271A (en) * 1977-12-14 1980-07-08 Southwire Company Continuous casting mold geometry improvement
US4658882A (en) * 1981-01-22 1987-04-21 Nippon Steel Corporation Machine for direct rolling of steel casting and producing steel product therefrom
US4705096A (en) * 1981-09-08 1987-11-10 Southwire Company Exfoliation of surface oxide from continuously cast copper bar in conjunction with inline hot rolling
US5377744A (en) * 1990-06-28 1995-01-03 Holton Machinery Limited Method and device for continuous casting and extrusion
US5533248A (en) * 1992-05-12 1996-07-09 Tippins Incorporated Method of steel processing using an inline grinder
WO1998042462A1 (de) * 1997-03-20 1998-10-01 Mannesmann Ag Verfahren und anlage zur herstellung von draht aus aluminiumsträngen
WO1999032239A1 (en) * 1997-12-19 1999-07-01 Technalum Research, Inc. Process and apparatus for the production of cold rolled profiles from continuously cast rod

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386107A (en) * 1920-01-12 1921-08-02 Hamilton Lewis Leonard Machine for forming finishing-molding
US2019496A (en) * 1933-05-24 1935-11-05 Frank J Kohlhaas Apparatus for producing copper and other metal rods and the like
US2709842A (en) * 1951-07-06 1955-06-07 Gordon R Findlay Apparatus for continuous casting of high-melting-point metals
US2710433A (en) * 1948-04-30 1955-06-14 Properzi Hario Continuous metal casting machine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1386107A (en) * 1920-01-12 1921-08-02 Hamilton Lewis Leonard Machine for forming finishing-molding
US2019496A (en) * 1933-05-24 1935-11-05 Frank J Kohlhaas Apparatus for producing copper and other metal rods and the like
US2710433A (en) * 1948-04-30 1955-06-14 Properzi Hario Continuous metal casting machine
US2709842A (en) * 1951-07-06 1955-06-07 Gordon R Findlay Apparatus for continuous casting of high-melting-point metals

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3469620A (en) * 1967-04-19 1969-09-30 Southwire Co Casting process
FR2010493A1 (2) * 1968-05-31 1970-02-20 Westinghouse Electric Corp
JPS4837905B1 (2) * 1969-09-05 1973-11-14
US4066475A (en) * 1974-09-26 1978-01-03 Southwire Company Method of producing a continuously processed copper rod
US4068705A (en) * 1975-01-10 1978-01-17 Southwire Company Forming apparatus with roller guide tube
US4211271A (en) * 1977-12-14 1980-07-08 Southwire Company Continuous casting mold geometry improvement
US4658882A (en) * 1981-01-22 1987-04-21 Nippon Steel Corporation Machine for direct rolling of steel casting and producing steel product therefrom
US4705096A (en) * 1981-09-08 1987-11-10 Southwire Company Exfoliation of surface oxide from continuously cast copper bar in conjunction with inline hot rolling
US5377744A (en) * 1990-06-28 1995-01-03 Holton Machinery Limited Method and device for continuous casting and extrusion
US5533248A (en) * 1992-05-12 1996-07-09 Tippins Incorporated Method of steel processing using an inline grinder
WO1998042462A1 (de) * 1997-03-20 1998-10-01 Mannesmann Ag Verfahren und anlage zur herstellung von draht aus aluminiumsträngen
WO1999032239A1 (en) * 1997-12-19 1999-07-01 Technalum Research, Inc. Process and apparatus for the production of cold rolled profiles from continuously cast rod

Also Published As

Publication number Publication date
BE696661A (2) 1967-09-18

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