EP0087224A1 - Coulée continue - Google Patents

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Publication number
EP0087224A1
EP0087224A1 EP83300443A EP83300443A EP0087224A1 EP 0087224 A1 EP0087224 A1 EP 0087224A1 EP 83300443 A EP83300443 A EP 83300443A EP 83300443 A EP83300443 A EP 83300443A EP 0087224 A1 EP0087224 A1 EP 0087224A1
Authority
EP
European Patent Office
Prior art keywords
cast bar
advancing
bar
advancing cast
cutting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83300443A
Other languages
German (de)
English (en)
Other versions
EP0087224B1 (fr
Inventor
Ronald Hinds
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Balfour Beatty PLC
Original Assignee
BICC PLC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BICC PLC filed Critical BICC PLC
Priority to AT83300443T priority Critical patent/ATE22241T1/de
Publication of EP0087224A1 publication Critical patent/EP0087224A1/fr
Application granted granted Critical
Publication of EP0087224B1 publication Critical patent/EP0087224B1/fr
Expired legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B24GRINDING; POLISHING
    • B24BMACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B9/00Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor
    • B24B9/002Machines or devices designed for grinding edges or bevels on work or for removing burrs; Accessories therefor for travelling workpieces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12Accessories for subsequent treating or working cast stock in situ

Definitions

  • This invention relates to a casting process in which molten metal is continuously cast in a casting machine comprising a casting wheel having a peripheral groove and, closing an arcuate length of the groove to form a mould, a continuously moving endless band, to obtain a cast bar from which metal rod or wire can be formed.
  • a metal bar cast using such a casting machine has flash material along the edges of the bar formed at the junction of the edges of the peripheral groove and the endless band and it has been proposed to cut such flash material from the edges of the cast bar by means of fixedly mounted blades whilst the cast bar, still within its hot working temperature range, passes continuously from the casting machine to a rolling mill or other hot forming plant.
  • the improved method comprises forming a cast bar by continuously casting molten metal in a casting machine comprising a casting wheel having a peripheral groove and, closing an arcuate length of the groove to form a mould, a continuously moving endless band, and causing the cast bar whilst within its hot working temperature range to travel continuously in the direction of its length from the casting machine to a hot forming plant, wherein, in its passage between the casting machine and the hot forming plant, the advancing cast bar passes through a cutting device comprising at least one pair of cutting wheels positioned on opposite sides of the advancing cast bar and rotatably driven about their axes, each of which rotatably driven cutting wheels has around its circumference a cutting edge which is urged into continuous engagement with an edge of the advancing cast bar to cut flash material therefrom.
  • each cutting wheel extends around the circumference of the wheel and the cutting wheel is rotatably driven whilst it is urged into continuous engagement with an edge of the advancing cast bar, the rate of wear of the cutting edge is substantially reduced as compared with the rate of wear of fixedly mounted blades and it has been found that the working life of a cutting wheel can be many weeks, and - in some circumstances several months, before its cutting edge becomes so worn that the wheel has to be replaced whilst its cutting edge is reground or replaced.
  • each cutting wheel is preferably so arranged with respect to the axis of the advancing cast bar that the profile of the circumferentially continuous cutting edge of the wheel is simple in form; consequently, re-grinding of the cutting edge of a wheel is a simpler and substantially less expensive operation than re-grinding of the cutting edge of a fixedly mounted cutting blade hitherto used.
  • the axes of rotation of the cutting wheels of the pair extend substantially lengthwise of, and converge in, the direction of travel of the advancing cast bar and, in this case, the axes of rotation of the cutting wheels preferably are each inclined to the direction of travel of the advancing cast bar at an angle of approximately 13°.
  • the advancing cast bar In its passage between the casting machine and hot forming plant, the advancing cast bar preferably travels in a substantially horizontal plane and the axes of rotation of the cutting wheels of the pair preferably are each inclined to said horizontal plane at an angle of approximately 13°.
  • the advancing cast bar is continuously engaged by means.by which the cast bar is constrained to travel in a substantially rectilinear path to ensure that the cutting wheels remove all and only flash material from the advancing cast bar.
  • the constraining means preferably comprises a plurality of pairs of freely rotatable roller guides which are in continuous engagement with opposite sides of the advancing cast bar at longitudinally spaced stations and which constrain the advancing cast bar against any substantial transverse movement from said rectilinear path.
  • one of each pair of freely rotatable roller guides is fixed in space and constitutes one datum of said rectilinear path of the advancing cast bar and the other of each pair of roller guides is carried by a support which is pivotally mounted about an axis extending substantially parallel to the direction of travel of the advancing cast bar and which has associated means, e.g. a pneumatically or hydraulically powered piston, urging the roller guide carried by the support into continuous engagement with a side of the advancing cast bar.
  • the constraining means preferably also comprises a plurality of freely rotatable roller guides which are longitudinally spaced along the advancing cast bar and which are in continuous engagement with the upper and lower surfaces of the advancing cast bar to constrain it against substantial upward or downward movement from said rectilinear path.
  • the roller guides engaging the undersurface of the advancing cast bar are each fixed in space and constitute a second datum of said rectilinear path of the advancing cast bar and, preferably also, the axis of each of these fixed roller guides lies in the same plane as the axes of a pair of roller guides engaging the sides of the advancing cast bar.
  • Each freely rotatable roller guide engaging the upper surface of the advancing cast bar preferably is positioned between two longitudinally spaced roller guides engaging the undersurface of the advancing cast bar and, preferably also, is pivotally mounted on a support structure about an axis extending transversely of the direction of travel of the advancing cast bar and has associated means, e.g. a pneumatically or hydraulically powered piston, urging the roller guide or guides carried by the support structure into continuous engagement with the upper surface of the advancing cast bar.
  • the advancing cast bar Downstream of the cutting device and upstream of the rolling mill or other-hot forming plant, preferably the advancing cast bar passes through a chamber in which jets of cleaning liquid are directed on to the upper and lower surfaces and sides of the cast bar.
  • the cutting device comprises two pairs of cutting wheels spaced along the direction of travel of the advancing cast bar, only one of which pairs of cutting wheels is used at any one time and each of which pairs of cutting wheels is independently controlled with respect to the other pair and is mounted on a support structure so pivotally mounted that the pair of cutting wheels can be engaged with or disengaged from the edges of the advancing cast bar as required.
  • engagement of one pair of cutting wheels and disengagement of the other pair of cutting wheels and disengagement of the other pair of cutting wheels can be readily and rapidly effected and, if desired, whilst the advancing cast bar is passing through the cutting device, thereby eliminating the necessity to stop the continuous casting process.
  • the cutting device comprises two pairs of cutting wheels longitudinally spaced apart
  • means for constraining the advancing cast bar to travel in said rectilinear path is also provided between the two pairs of cutting wheels.
  • This constraining means preferably comprises a pair of freely rotatable roller guides which continuously engage the sides of the advancing cast bar and which are of substantially the same construction as the pairs of freely rotatable roller guides continuously engaging the sides of the advancing cast bar upstream of the cutting device, and a pair of freely rotatable roller guides which continuously engage the upper and lower surfaces of the advancing cast bar and whose axes lie in the same plane as the axes of the pair of roller guides engaging the sides of the advancing cast bar, the roller guide engaging the undersurface of the cast bar being fixed in space and constituting said second datum for said rectilinear path of the advancing cast bar and the roller guide engaging the upper surface of the advancing cast bar being pivotally mounted on a support structure about an axis extending transversely of the direction of travel of the advancing cast bar and having associated
  • the or each pair of cutting wheels is urged into continuous engagement with the advancing cast bar by a pneumatically or hydraulically powered piston which can be automatically adjusted as required.
  • Each cutting wheel of the pair may be initially adjusted to' accommodate any change in its diameter arising from re-grinding of its cutting edge.
  • the roller guide engaging the upper surface of the advancing cast bar between the two pairs of cutting wheels serves as a sensor controlling means which automatically adjusts the depth of cut of the cutting wheels having regard to the movement of the sensor.
  • the rotatably driven cutting wheels in continuous engagement with the advancing cast bar and all of the roller guides are each continuously cooled by cooling fluid.
  • the invention also includes apparatus for use in forming a cast metal bar by the improved method hereinbefore described.
  • the improved method and apparatus of the present invention enable metal bar to be continuously cast more economically than methods and apparatus hitherto proposed and employed because the cutting wheels can be accurately set and hence the amount of waste metal can be closely controlled.
  • a copper bar B continuously cast by a casting machine comprising a casting wheel having a peripheral groove and, closing an arcuate length of the groove to form a mould, a - continuously moving endless band, on emerging from the casting machine and whilst within its hot working temperature range is caused to travel in a substantially horizontal plane and in a substantially rectilinear direction successively through the cutting device shown in Figures 1 and 2, through the cleaning chamber shown in Figures 1 and 3 and then to hot forming apparatus (not shown) where the cast bar is formed into copper rod.
  • the cutting device shown in Figures 1 and 2 comprises two pairs 1 of cutting wheels 2 spaced along the direction of travel of the advancing cast bar B.
  • Each pair 1 of cutting wheels 2 is mounted on a support structure 3 so pivotally mounted about an axis 4 that the pair of cutting wheels can be engaged with or disengaged from the upper edges of the advancing cast bar B as required, at any one time only one pair of cutting wheels being in engagement with the advancing cast bar.
  • Each cutting wheel 2 of each pair 1 has a circumferentially continuous cutting edge and is rotatably driven about its axis through appropriate gearing by a drive motor 5.
  • the cutting wheels 2 of each pair 1 when in engagement with the advancing cast bar B, are urged into continuous engagement with the cast bar by an adjustable pneumatically powered piston 6.
  • each cutting wheel 2 is continuously cooled by cooling fluid which is directed through holes 8 in the wheel on to its cutting edge and which is collected in an underlying reservoir 7 from which it is re-circulated in a manner generally known.
  • the advancing cast bar B is constrained to travel in the substantially rectilinear path to ensure that the cutting wheels 2 remove all and only flash material from the upper edges of the cast bar by constraining means comprising four pairs 11, 12, 13 and 14 of freely rotatable roller guides 15, 16 which are in continuous engagement with opposite sides of the advancing cast bar at longitudinally spaced stations and which constrain the bar against any substantial transverse movement from the rectilinear path, and freely rotatable roller guides 32, 33, 34 and 35 which are longitudinally spaced along the advancing cast bar and which are in continuous engagement with the upper and lower surfaces of the cast bar to constrain it against any substantial upward and downward movement from the rectilinear path.
  • constraining means comprising four pairs 11, 12, 13 and 14 of freely rotatable roller guides 15, 16 which are in continuous engagement with opposite sides of the advancing cast bar at longitudinally spaced stations and which constrain the bar against any substantial transverse movement from the rectilinear path, and freely rotatable roller guides 32, 33, 34 and 35 which are longitudinally spaced along the
  • roller guide 15 of each pair 11, 12, 13 and 14 of freely rotatable roller guides is fixed in space and constitutes one datum of the rectilinear path of the advancing cast bar B and the other roller guide 16 of each pair is carried by a support 17 which is pivotally mounted about an axis 18 and which has an associated independently adjustable pneumatically powered piston 19 urging the roller guide carried by the support into continuous engagement with a side of the advancing bar.
  • the pair 14 of freely rotatable rollers 15, 16 is at a station intermediate the two pairs 1 of cutting wheels 2.
  • the freely rotatable roller guides 32 continuously engage the upper surface of the advancing cast bar B and the freely rotatable roller guides 33 continuously engage the undersurface of the cast bar.
  • the axis of rotation of each of the freely rotatable roller guides 33 lies in the same plane as the axes of rotation of one of the pairs 11, 12 and 13 of freely rotatable guides 15, 16.
  • Each roller guide 33 is fixed in space and constitutes a second datum of the rectilinear path of the advancing cast bar B.
  • Each freely rotatable roller guide 32 is positioned between two longitudinally spaced roller guides 33, is pivotally mounted on a support structure 36 about an axis 37 extending transversely of the direction of travel of the advancing cast bar B, and has an associated independently adjustable pneumatically powered piston (not shown) urging the roller guides 32 carried by the support structure into continuous engagement with the upper surface of the advancing cast bar.
  • the freely rotatable roller guide 34 engaging the upper surface of the advancing cast bar B and the freely rotatable roller guide 35 engaging the undersurface of the advancing cast bar are arranged with their axes of rotation lying in the same plane as the axes of rotation of the freely rotatable roller guides 15, 16 of the pair 14.
  • the roller guide 35 is fixed in space and constitutes a second datum for the rectilinear path of the advancing cast bar and the roller guide 34 is pivotally mounted on a support 39 about an axis 40 extending transversely of the direction of travel of the advancing cast bar and has an associated independently adjustable pneumatically powered piston (not shown) urging the roller guide into continuous engagement with the upper surface of the advancing bar, the roller guide 34 serving as a sensor controlling means which automatically adjusts the pneumatically powered piston 6 urging the cutting wheels 2 into engagement with the advancing cast bar B to regulate the depth of cut of the cutting wheels.
  • Each of the roller guides is continuously cooled by cooling fluid which is collected in the reservoir 7 and is recirculated.
  • the advancing cast bar B Downstream of the cutting device, the advancing cast bar B passes through a cleaning chamber 41. As will be seen on referring to Figure 3, within the cleaning chamber 41, cleaning fluid is directed on to each of the four surfaces of the advancing cast bar B from nozzles 42, the cleaning fluid being collected in an underlying reservoir 43 and recirculated in a manner generally known.
  • the apparatus shown in the drawings enables flash material to be cut from an advancing cast copper bar accurately with negligible or no unnecessary waste of copper.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Led Devices (AREA)
  • Shearing Machines (AREA)
EP83300443A 1982-02-01 1983-01-28 Coulée continue Expired EP0087224B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83300443T ATE22241T1 (de) 1982-02-01 1983-01-28 Stranggiessen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB8202736 1982-02-01
GB8202736 1982-02-01

Publications (2)

Publication Number Publication Date
EP0087224A1 true EP0087224A1 (fr) 1983-08-31
EP0087224B1 EP0087224B1 (fr) 1986-09-17

Family

ID=10528009

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83300443A Expired EP0087224B1 (fr) 1982-02-01 1983-01-28 Coulée continue

Country Status (5)

Country Link
EP (1) EP0087224B1 (fr)
JP (1) JPS58132359A (fr)
AT (1) ATE22241T1 (fr)
DE (1) DE3366163D1 (fr)
GB (1) GB2114928B (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121298A1 (fr) * 1983-02-03 1984-10-10 Mb Group Plc Extrusion continue de métaux
WO1990006195A1 (fr) * 1988-12-02 1990-06-14 The Broken Hill Proprietary Company Limited Ensemble a ebavurer servant a enlever les bavures et autres defauts de la surface de pieces coulees

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2262247B (en) * 1991-12-13 1996-01-10 Conex Ind Ltd A process for producing brass fittings
CN111347315A (zh) * 2020-04-09 2020-06-30 陈文君 一种适用于大型金属铸件打磨装置及其使用方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE520141C (de) * 1927-05-14 1931-03-07 Anton Mohr Maschine zum Fraesen von ebenen und unebenen Flaechen, insbesondere von auszuwalzenden gegossenen Metallplatten
CH392785A (de) * 1961-02-08 1965-05-31 Lugert Josef Stranggiessanlage mit waagrechtem Abzug
CH584085A5 (fr) * 1974-01-15 1977-01-31 Technica Guss Gmbh
DE2824266A1 (de) * 1977-07-11 1979-01-18 Fischer Ag Georg Verfahren und einrichtung zum entgraten von werkstuecken

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE520141C (de) * 1927-05-14 1931-03-07 Anton Mohr Maschine zum Fraesen von ebenen und unebenen Flaechen, insbesondere von auszuwalzenden gegossenen Metallplatten
CH392785A (de) * 1961-02-08 1965-05-31 Lugert Josef Stranggiessanlage mit waagrechtem Abzug
CH584085A5 (fr) * 1974-01-15 1977-01-31 Technica Guss Gmbh
DE2824266A1 (de) * 1977-07-11 1979-01-18 Fischer Ag Georg Verfahren und einrichtung zum entgraten von werkstuecken

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0121298A1 (fr) * 1983-02-03 1984-10-10 Mb Group Plc Extrusion continue de métaux
WO1990006195A1 (fr) * 1988-12-02 1990-06-14 The Broken Hill Proprietary Company Limited Ensemble a ebavurer servant a enlever les bavures et autres defauts de la surface de pieces coulees

Also Published As

Publication number Publication date
GB2114928A (en) 1983-09-01
JPS58132359A (ja) 1983-08-06
GB8302405D0 (en) 1983-03-02
GB2114928B (en) 1986-02-19
DE3366163D1 (en) 1986-10-23
EP0087224B1 (fr) 1986-09-17
ATE22241T1 (de) 1986-10-15

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