Classifications

• • 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
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
  • Y10T29/49988—Metal casting
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
  • Y10T29/49988—Metal casting
  • Y10T29/49989—Followed by cutting or removing material
• • 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
  • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
  • Y10T29/00—Metal working
  • Y10T29/49—Method of mechanical manufacture
  • Y10T29/4998—Combined manufacture including applying or shaping of fluent material
  • Y10T29/49988—Metal casting
  • Y10T29/49991—Combined with rolling

Definitions

• ABSTRACT [30] Foreign Apphca'mn Pnomy Data A process is disclosed for directly and continuously Oct. 17, 1972 Belgium 123169 manufacturing profiled metal bars or wire rods in which molten metal is cast in a casting means and per- [52] 29/527'6; 29/5275; 29/5277; mitted to be cooled in the casting means sufficient to 164/ 70; 164/89 develope a solid metal envelope containing a substan- [51] Int.
• a process is already known for manufacturing hot shaped copper-based products from molten metal, according to which the molten copper-based metal is substantially completely solidified in a closed mould and the cast bar is hot shaped while it is substantially in that condition in which it has been solidified.
• This known process has the drawback that the liquid metal has to be substantially completely solidified by indirect cooling, namely through the intermediary of the mould wall and through the intermediary of the gap which is formed between said mould wall and the solidifying metal as a result of the shrinkage of the latter; thus, the complete solidification of the metal in the mould is possible only when the metal is cast at relatively low speeds and is therefore a limit to the productivity of the process.
• This invention aims at avoiding this drawback.
• a rough shape consisting of a solid metal envelope containing a substantial quantity of liquid metal is produced by continuous casting, the rough shape thus leaving the casting machine is then cooled by direct and repeated contact in the surrounding atmosphere with a coolant in order completely to solidify the rough shape, to make the temperature throughout its cross-section uniform and to reduce its temperature to a value which allows it to be transformed into a product having the desired profile.
• the corners of the rough shape are preferably cut away in order to avoid right angles in the crosssection of the rough shape and to give it for instance the octogonal form.
• the rough shape is heated to raise its temperature within a range of temperatures suitable to its rolling and the rough shape is rolled by means known per se to be transformed into a product having the desired profile.
• the rough shape leaving the casting machine is cooled in at least two zones of intensive cooling, each of which is followed by a zone without cooling or with weak cooling.
• the rectangular rough shape leaving the casting machine is conveyed in the surrounding atmosphere to a first intensive cooling zone, in which the rough shape is sprinkled with water; the rough shape leaving this first intensive cooling zone is then again conveyed in the surrounding atmosphere, during which conveyance the temperature becomes more homogeneous throughout the cross-section of the rough shape since the strongly cooled outer crust is warmed up again by the heat of the core which is still very hot; the rough shape enters then a second zone of intensive cooling, followed by another conveyance in the surrounding atmosphere and by a third zone of intensive cooling, at the outlet of which the temperatureis nearly uniform throughout the cross-section of the rough shape at about 800C, which allows the rough shape to be subjected to a cutting operation.
• the four edges of the rough shape are now cut away, e.g. by means of four rotating milling cutters, to give it an octogonal cross-section.
• Such a section is particularly well adapted for rolling, because it shows no right angles which might produce creases during the rolling.
• the rough shape is then passed under a brushing system in order to eliminate any chips which might have been deposited on it.
• the rough shape is brought back to a temperature of about 850C, which suits particularly will for copper rolling and the reheated rough shape is converted into wire rod by a hot rolling process known per What we claim is:
• a process for directly and continuously manufacturing profiled bars or wire rods of a metal such as copper comprising continuously casting a molten metal in a casting means in the form of a rough casting, permitting said rough casting to be cooled in the casting means sufficient to develop a solid metal envelope containing a substantial quantity of liquid metal therein, conveying said rough casting out of the casting means into the surrounding atmosphere, conveying said rough casting to a first intensive cooling zone and subjecting said rough casting to direct contact with a coolant capable of intensively cooling said rough casting, conveying said rough casting into the surrounding atmosphere and simultaneously permitting heat to transfer from the central portion thereof to the outer intensively cooled portion to thereby facilitate reheating of the cooled portion, conveying said rough casting to at least a second intensive cooling zone and subjecting said rough casting to direct contact with a coolant capable of intensively cooling said rough casting to further cool the outer portion thereof, and conveying said rough casting to the surrounding atmosphere while simultaneously permitting heat to transfer from the central portion thereof to the outer intensively cooled portion to thereby facilitate reheating of the cooled portion to
• a process for directly and continuously manufacturing profiled copper bars or wire rods comprising continuously casting molten copper in a casting mold in the form of a rough casting, permitting said rough casting to be cooled in the casting mold sufficient to develop a solid metal envelope containing liquid copper therein.
• the liquid copper representing approximately 30 percent of the entire cross-section of the rough casting and the temperature of the liquid copper core being approximately lllC and the temperature of the outer solidified portion being approximately 1020C, conveying said rough casting out of the casting mold into the surrounding atmosphere, conveying said rough casting to a first intensive cooling zone and subjecting said rough casting to an intensive cooling by sprinkling water thereon, conveying said rough casting into the surrounding atmosphere and simultaneously permitting heat to transfer from the central portion thereof to the outer intensively cooled portion to thereby facilitate reheating of the cooled outer portion, conveying said rough casting to a second intensive cooling zone and subjecting said rough casting to a second intensive cooling by sprinkling water thereon to further cool the outer portion thereof, conveying said rough casting to the surrounding atmosphere while simultaneously permitting heat to transfer from the central portion thereof to the outer intensively cooled portion to thereby facilitate reheating of the cooled outer portion, conveying said rough casting to a third intensive cooling zone and subjecting said casting to an intensive cooling by sprinkling water thereon to further cool the outer portion

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Continuous Casting (AREA)
• Metal Rolling (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=3841702

Family Applications (1)

Country Status (7)

Citations (6)

Family Cites Families (1)

• 1973
  • 1973-09-25 SE SE7313026A patent/SE400195B/sv unknown
  • 1973-09-26 IT IT29408/73A patent/IT995498B/it active
  • 1973-09-28 CA CA182,148A patent/CA994654A/en not_active Expired
  • 1973-10-05 AU AU61085/73A patent/AU6108573A/en not_active Expired
  • 1973-10-06 DE DE19732350285 patent/DE2350285A1/de active Pending
  • 1973-10-12 JP JP48114627A patent/JPS5828021B2/ja not_active Expired
  • 1973-10-17 US US407044A patent/US3895428A/en not_active Expired - Lifetime

Patent Citations (6)

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