US3702629A - Method for the continuous hot shaping of copper bars - Google Patents

Method for the continuous hot shaping of copper bars Download PDF

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Publication number
US3702629A
US3702629A US62836A US3702629DA US3702629A US 3702629 A US3702629 A US 3702629A US 62836 A US62836 A US 62836A US 3702629D A US3702629D A US 3702629DA US 3702629 A US3702629 A US 3702629A
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Prior art keywords
passes
bar
hot shaping
roughing
copper
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Expired - Lifetime
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US62836A
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English (en)
Inventor
Jean L Leroy
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Societe Generale Metallurgique de Hoboken SA
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Societe Generale Metallurgique de Hoboken SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B3/003—Rolling non-ferrous metals immediately subsequent to continuous casting, i.e. in-line rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/16—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section
    • B21B1/18—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling wire rods, bars, merchant bars, rounds wire or material of like small cross-section in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B3/00—Rolling materials of special alloys so far as the composition of the alloy requires or permits special rolling methods or sequences ; Rolling of aluminium, copper, zinc or other non-ferrous metals
    • B21B2003/005—Copper or its alloys
    • 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

  • Hot shaping processes in which metal kept at hot shaping temperatures is rolled, forged or otherwise worked. in continuous processing, rolling is generally done under tension by subjecting the rod to torsions, while lowering progressively the temperatures in the course of processing.
  • Changes in continuity and surface quality of the copper rod may be due to the tensions and the torsions undergone by the rod whilst being rolled, which, under certain conditions, may be highly detrimental to wire drawing.
  • Final physical characteristics also depend on the choice of an adequate temperature of the final rolling whilst ensuring during the main part of the rolling a temperature sufficiently high to obtain a good hot rolling.
  • the preliminary shape is not affected by the straightening at high temperature, which is a cause of cracking in the shortest generatrix of the material, as it happens in continuous rod casting systems of the known type using casting wheels.
  • the possibility of cracking is reduced and even the formation of internal and external cracks is reduced.
  • the invention consists in a method for continuous hot shaping of copper rods leaving a continuous casting device, characterized by the fact that, during the conveyance of the bar between the said casting device and the evacuation of the bar in its final form, means are provided to suppress or reduce tensions at different spots of this run and to suppress torsions in the length of the bar, and that means are also provided for controlling the cooling of the bar during the said conveyance.
  • the tensions in the preliminary shape during the rolling are distributed so that the preliminary shape is practically not subjected to any tension during the first passes (called roughing passes) at the points where mechanical resistance of the hot rough shape is low, after which the preliminary shape is subjected in the intermediate stands to a tension which is sufiiciently low to avoid cracking or deformation of the preliminary shape through tension, but is sufficiently high to straighten the material in order to reduce or to avoid contact with the guides, and finally all tension is avoided in the last passes (called finishing passes).
  • Another feature of the present invention is that the cast bar, when leaving the casting device, is supported by pinching rollers with a linear speed slightly lower (2 1%) than the casting speed. These pinching rollers support the cast bar and withhold the flux of liquid copper in the casting machine by means of the said solidified cast bar.
  • Still another feature is that one of the pinching rollers can rotate freely and act directly upon the speed of the hot shaping device.
  • the cast bar in the course of roughing, is continuously supported as long as a sufficient rolling has not yet conferred to it a tensile strength which it needs to support its own weight without damage.
  • the flexibility needed to ensure roughing without tension in at least the first two roughing passes is obtained through the devices incorporated in the ramp preceeding the roughing stands and comprising two movable parts pivoting around their outer end. These two movable parts of the ramp, normally in line, and equipped with rollers, are supported at their inner movable ends through a lifting system exerting an upward force which is slightly stronger than the combined action of the weight of the two movable parts and of the weight of the rough shape to be supported.
  • Another feature of the invention is that hot rolling during roughing, in the alternately vertical and horizontal stands, is effected through three succeding passes square flat oval square on angle or round, whether preceded or not by box passes, which eliminates every torsion of the rod whilst ensuring the best possible rolling to the core.
  • Box passes are rectangular or square passes of which one median is perpendicular to the axis of the cylinders and the other is parallel to it).
  • Another characteristic feature is that the rolling during the intermediate and finishing stages is ensured by means of alternately vertical or horizontal stands and by stands which are alternately inclined through 45 on either side of a vertical line, by applying rolling passes alternately oval and round or oval-oval, thus suppressing all torsion of the preliminary shape and all drawbacks connected with said torsion.
  • the cast rod with a rectangular cross-section before being carried in the hot shaping device, is subjected to a bevelling on the four edges by means of rotating milling cutters followed by a brushing system, in order to avoid burrs which are obtained when the bevelling is carried out with a fixed cutting tool, and to avoid the tension which should be applied to get the rod through such fixed tools.
  • Another feature of the invention consists in providing, between the outlet of the casting machine and the inlet of the first pass of the hot shaping device, means to make the temperature uniform in the cross-section of the bar and all along the bar.
  • cooling means and, if necessary heating means are provided in order to accelerate such uniformity and to obtain at the inlet of the rolling mills a temperature of 800 to 850 C, which is required for copper.
  • Another feature of the present invention is that the cooling of the rough shape is controlled during the entire rolling process so as to keep the temperature at a constant level which is chosen to get the best hot rolling of the metal and afterwards a special cooling is applied before the finishing passes, to bring the temperature of the rough shape down from the above mentioned constant level to the final rolling temperature chosen to obtain the best selected physical properties of the metal.
  • the rolling temperature in the finishing passes which determines the physical properties of the copper rods.
  • the level of temperature at which the rough shape should be maintained in the course of rolling in order to obtain a satisfactory hot rolling is comprised between 800 and 850C
  • the final rolling temperature at the inlet of the finishing passes which alone determines the physical properties of the copper rod, can be chosen according to the pursued aim: if it is desired to obtain a soft and ductile copper rod, enabling a high rate of cold reduction, the final temperature is comprised between 700 and 800 C.
  • the final rolling temperature is set between 500 and 600, thus producing an almost instantaneous precipitation of the last traces of impurities (which are in solid solution at higher temperatures).
  • the preliminary shape E leaving the casting device is supported during its whole run to the rolling mills and between the different roughing passes till reaching the stage in which the rolling applied is sufficient to give the rod on the one hand in the course of rolling the necessary tensile strength to support its own weight, and to reach on the other hand a section which is sufficiently weak to allow the formation of loops without damage.
  • zone A which is the so-called homogenizing and conditioning zone. That zone comprises in the first place a secondary cooling device 2 which ensures a complete solidification of the metal and lowers its temperature to 900 C.
  • the solidified and still hot bar is then taken by pinching rollers 3, the peripheral speed of which is controlled by the casting device and is slightly lower (1 than the casting speed in order to withhold, by means of the said cast and solidified bar E, the flux of liquid copper in the casting machine 1.
  • One of the cylinders of the pinching rollers 3 can rotate freely and control the speed of the first roughing stand.
  • the pinching rollers 3 also direct the solidified bar E exactly in the axis of the rolling line.
  • the pinching rollers 3 then introduce the hot bar E in the device with rotating milling cutters 4 for bevelling the four sharp edges of the cast bar.
  • Two devices with rotating milling cutters are provided, which work alternately and ensure a continuous operation, as soon as normal casting conditions are reached.
  • the preliminary shape passes through metallic brushes 5 to eliminate any chips which might stick to the preliminary shape.
  • Pendular or other shears 6 are provided which serve in the first place to cut the cast rough shape into removable pieces as long as normal casting conditions and the required quality are not yet reached and serve afterwards as emergency shears when there is an obstruction or another difficulty in the line A.
  • This same conditioning and homogenizing zone A comprises the first supporting and regulating device 7 in order to avoid every tension before the first roughing stand 9.
  • This device 7 comprises two movable parts 47 and 48, in a line, which can pivot around their outer ends 49 and 50, the two contact ends being supported by a lifting device, not illustrated, which is situated at 51, exerting a light upward pression.
  • the lifting device 51 causes a slight upward movement and gives immediately rise to a proportional acceleration of the first roughing stand 9, by known means.
  • Such vertical shift enables a precise regulation to be obtained of the speed of the first roughing stand 9 and causes only a small deflection (maximum mm), whilst ensuring a continuous support of the rough shape.
  • the temperature of the preliminary shape is measured and such temperature must be the same in the length as well as in cross-section.
  • the temperature measuring and controlling device 8 regulates the cooling or causes a reheating of the cast preliminary shape, by known means (not illustrated) in order to keep the said temperature at a constant level comprised between 800 and 850 C.
  • the whole zone A must be sufficiently long to obtain perfect uniformity and homogeneity of the rough shape.
  • the whole machinery of zone A may be set up in one or several rooms which may be heat-indulated and under a controlled atmosphere.
  • a roughing stage B comprising for instance five stands, alternately vertical and horizontal, driven by engines or motors which are shown at M, and of which the first two passes at least ensure a rolling without tension and a roughing without torsion.
  • Roughing can be done according to the following variants: a) a vertical independant stand 9, driven by an engine or motor M, followed by a supporting device 10 similar to the one described under 7 and by an emergency shear 11 built according to the already described principles, a horizontal independant stand 12 the speed of which is controlled by the supporting and controlling device 10, itself followed by a supporting and controlling device 13 and by an emergency shear l4, and afterwards a unit of three stands (15) alternately vertical and horizontal, which the preliminary shape leaves in the form of a square on angle or of a round.
  • Another variant less favorable from the quality point of view, but less expensive, consists in sending the preliminary shape through the independant roughing stand 9, afierwards on the regulating device 10 and shear 11 and in introducing it afterwards in the unit 16 with four stands, alternately horizontal and vertical, synchronized in such a way that the tension is reduced to a minimum.
  • Such a succession comprising two stands without tension (9 on the first stand of unit 16), comprises the following pass sequence: vertical box-pass horizontal box-pass and then again square on flat oval square on angle or round, thus avoiding any torsion.
  • the third variant which is the most expensive is also the most favorable as regards quality. it ensures four roughing passes without tension through the following laying out: the vertical stand 9, followed by a regulating device 10 and emergency shear 11, is followed by an horizontal stand 17 with regulating device 18 and emergency shear 19, then by a vertical independant stand 20, by a regulating device 21 and finally by a unit of two synchronized stands (horizontal vertical) 22, the speed of which is controlled by the preceding device 21.
  • Such an arrangement ensures roughing without tension up to, and including the fourth stand, whilst the tension between the fifth and the sixth stand is reduced to a minimum.
  • the pass sequence in this variant is as follows: boxpass 9, box-pass 17, square on flat and then oval square on angle or oval round 22.
  • the diameter of the roughing train cylinders In order to ensure a good gripping of the bar in the course of roughing, the diameter of the roughing train cylinders, at least of those of the first stands, must be relatively large (minimum 400 mm).
  • That intermediate train which has always a sequence pass oval oval or oval round (false round) may, as shown in the drawing, be grouped in units of synchronized stands according to different variants, each unit being preceded by a free regulating device 23 followed by a shear 24.
  • the roughed bar After roughing, the roughed bar is sufficiently rolled and has a cross-section which is sufficiently weak to enable the formation of a free loop, which permits, by known means for instance a set of rotating mirrors and photoelectric cells) to regulate the speed of the next unit.
  • the first variant of the intermediate train C consists of a free regulating device 23, an emergency shear 24, a unit of two stands 25, a regulating device 26, a unit of four stands 27, a free regulating device 28 and a unit of two stands 29.
  • the second variant comprises the same free regulating device 30, an emergency shear 31, a unit of two stands 32, a free regulating device 33 and a unit of six synchronous stands 34.
  • the third variant comprises still the same free device 35, and the shear 36, followed by two units of four synchronous stands 37 and 39, separated by a regulating device 38.
  • Variants a) and c) are the most favorable, because of the greater adaptability which they allow, by reducing to a minimum the time needed to replace the flutings of a single unit, which must be replaced simultaneously.
  • the reduction of the successive sections and the successive linear speeds are regulated in such a way that the minimum tension is obtained which is required to straighten the rolled rough shape in order to avoid every contact with the guides.
  • This tension however must be as weak as possible in order to avoid mechanical deformation and intercrystalline cracks and a heterogenous reduction from one point to the other.
  • the rolled rough shape (round or false round) is conveyed via a regulating device 40 and an emergency shear 41 via a temperature regulating device 42 into the finishing train (D), comprising two independent stands allowing hot finishing, at the temperature chosen without any tension.
  • a device 42 is provided allowing cooling down of the rolled rough shape to a predetermined temperature, before it enters the last two passes without any tension and without torsion.
  • the controlled cooling allows of regulating the rolling temperature at will in the finishing stands D. That temperature determines the physical qualities of the copper rod: if the wiredrawer wishes to obtain a very ductile wire rod, in order to facilitate handling and to allow high speed wire-drawing without process annealings, a final rolling temperature between 700 and 800 C is chosen. If on the other hand the wire-drawer prefers to obtain a better annealing possibility and the most favorable electric conductivity, if necessary by giving up some of the ductility of the wire rod, and wishes to obtain a wire that is particularly intended for process annealings at low temperature or for enamelling, the final temperature is set between 300" and 600 C.
  • this device makes it possible to meet all the desiderata of the wire-drawers according to the object pursued.
  • the two final finishing stands 43 and 45 alternately horizontal and vertical or inclined at an angle of 45 on either side of the vertical, are fully independent and are driven by individual motors 14, the speed of which is controlled, by known means, through the free loops 40 and 44.
  • the succession of passes which ensures very close tolerances, is oval-round.
  • the whole train (roughing 8, intermediate C and finishing D) is fed with soluble oil.
  • the emergency shears may be interconnected by known means so that they are put into operation one afier the other or simultaneously when some difficulty occurs in the line.
  • the copper rod is conveyed to the winding machines 46. Since the temperature during winding must be lower than 1 80 C in order to avoid any formation of superficial oxide, it is possible to proceed to descaling, thorough rinsing, and protective coating of the commercial copper rod. The copper rod is afterwards wound in reels of considerable unitary weight.
  • a method for continuous hot shaping of copper bars leaving a continuous casting device which comprises:
  • cooling immediately before the finishing passes in order to lower the temperature of the preliminary shape to the temperature required for obtaining pre-detennined physical properties of the copper.
  • a method for continuous hot shaping of copper bars leaving a continuous casting device as claimed in claim 1 in which the cast copper bar, when leaving the casting device and before being subjected to the first passes of hot shaping, is supported and conveyed by pinching rollers, the linear speed of which is slightly lower than the output of the casting device,
  • a method for continuous hot shaping of copper bars leaving a continuous casting device as claimed in claim 1, in which, between the outlet of the casting device and the inlet of the first passes of the hot shaping device heating means and cooling means are provided to obtain a uniform temperature in the cross-section and along the bar.
  • a method for continuous hot shaping of copper bars leaving a continuous casting device as claimed in claim 1, in which, when the cast bar has a rectangular form, the external aspect faults of the cast bar are eliminated, before the bar enters the hot shaping device by subjecting the bar to a bevelling of the four edges by means of rotating milling cutters followed by a brush arrangement.
  • a method for continuous hot shaping of copper bars leaving a continuous casting device as claimed in claim 1 in which the torsions during the roughing stage are eliminated by providing a succession of three passes square on flat oval square on angle and the torsions during the intermediate and finishing stages are eliminated by stands which are alternately inclined through 45 on either side of a vertical line, by applying passes alternately oval and round.
  • a method for continuous hot shaping of copper bars leaving a continuous casting device as claimed in claim 1 in which the torsions during the roughing stage are eliminated by providing a succession of three passes square on flat oval square on angle and the torsions during the intermediate and finishing stages are eliminated by stands which are alternately inclined through 45 on either side of a vertical line, by applying passes oval-oval.
  • a method for continuous hot shaping of copper bars leaving a continuous casting device as claimed in claim 1 in which the torsions during the roughing stage are eliminated by providing a succession of three passes square on fiat oval round, and the torsions during the intermediate and finishing stages are eliminated by alternately vertical and horizontal stands, by applying passes alternately oval and round.
  • a method for continuous hot shaping of copper bars leaving a continuous casting device as claimed in claim 1 in which the torsions during the roughing stage are eliminated by providing a succession of three passes square on flat oval round, and the torsions during the intermediate and finishing stages are eliminated by alternately vertical and horizontal stands, by applying passes oval-oval.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
US62836A 1969-08-25 1970-08-11 Method for the continuous hot shaping of copper bars Expired - Lifetime US3702629A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU59345 1969-08-25

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US (1) US3702629A (ko)
JP (1) JPS5031871B1 (ko)
AT (1) AT326597B (ko)
BE (1) BE754429A (ko)
CA (1) CA926084A (ko)
DE (1) DE2042020A1 (ko)
ES (1) ES382968A1 (ko)
FR (1) FR2058411B1 (ko)
GB (1) GB1287824A (ko)
LU (1) LU59345A1 (ko)
NL (1) NL7012499A (ko)
NO (1) NO133873C (ko)
SE (1) SE377431B (ko)
ZA (1) ZA705480B (ko)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517142A1 (de) * 1974-05-28 1975-12-18 Horizons Research Inc Verfahren zur herstellung von loeslichen polyhalophosphazen-polymerisaten
US4964456A (en) * 1988-01-28 1990-10-23 Larex Ag Continuous casting process and machine with at least one travelling casting belt for the production of metal strips and rods
WO2007137740A1 (de) * 2006-05-26 2007-12-06 Sms Demag Ag Verfahren und vorrichtung zum herstellen eines metallbandes durch stranggiessen
WO2007137748A2 (de) 2006-05-26 2007-12-06 Sms Demag Ag VORRICHTUNG UND VERFAHREN ZUM HERSTELLEN EINES METALLBANDES DURCH STRANGGIEßEN
US20090165986A1 (en) * 2006-05-26 2009-07-02 Seidel Juergen Method and device for producing a metal strip by continuous casting
CN101448589B (zh) * 2006-05-26 2012-05-30 Sms西马格股份公司 通过连铸用于制造金属带的装置和方法
CN110653262A (zh) * 2019-09-20 2020-01-07 中冶赛迪工程技术股份有限公司 一种无头轧制棒材生产线工艺设备

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5315251A (en) * 1976-07-28 1978-02-10 Furukawa Electric Co Ltd Continuous cast rolling and its practical equipment of electric conduct aluminum
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
CN110180891A (zh) * 2019-06-10 2019-08-30 成渝钒钛科技有限公司 一种高棒成材率提升方法

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US844520A (en) * 1906-03-24 1907-02-19 Sigmund V Huber Rolling-mill.
US2698467A (en) * 1950-06-05 1955-01-04 Edward W Osann Jr Method and apparatus for the continuous casting of metal
US2710433A (en) * 1948-04-30 1955-06-14 Properzi Hario Continuous metal casting machine
US3257835A (en) * 1964-11-12 1966-06-28 Southwire Co Method of hot forming metal
US3315349A (en) * 1965-10-20 1967-04-25 Southwire Co Method of producing hot-formed copper-base products
US3349471A (en) * 1964-09-25 1967-10-31 Southwire Company Inc Method for producing a continuous length of copper rod from molten copper metal
US3351126A (en) * 1964-09-25 1967-11-07 Western Electric Co Casting wheel apparatus
US3492918A (en) * 1967-11-06 1970-02-03 Bliss Co Method and apparatus for conditioning the corners of cast billets
US3561105A (en) * 1967-06-28 1971-02-09 Southwire Co Method of producing a hot-formed aluminum base product

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US844520A (en) * 1906-03-24 1907-02-19 Sigmund V Huber Rolling-mill.
US2710433A (en) * 1948-04-30 1955-06-14 Properzi Hario Continuous metal casting machine
US2698467A (en) * 1950-06-05 1955-01-04 Edward W Osann Jr Method and apparatus for the continuous casting of metal
US3349471A (en) * 1964-09-25 1967-10-31 Southwire Company Inc Method for producing a continuous length of copper rod from molten copper metal
US3351126A (en) * 1964-09-25 1967-11-07 Western Electric Co Casting wheel apparatus
US3257835A (en) * 1964-11-12 1966-06-28 Southwire Co Method of hot forming metal
US3315349A (en) * 1965-10-20 1967-04-25 Southwire Co Method of producing hot-formed copper-base products
US3561105A (en) * 1967-06-28 1971-02-09 Southwire Co Method of producing a hot-formed aluminum base product
US3492918A (en) * 1967-11-06 1970-02-03 Bliss Co Method and apparatus for conditioning the corners of cast billets

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2517142A1 (de) * 1974-05-28 1975-12-18 Horizons Research Inc Verfahren zur herstellung von loeslichen polyhalophosphazen-polymerisaten
US4964456A (en) * 1988-01-28 1990-10-23 Larex Ag Continuous casting process and machine with at least one travelling casting belt for the production of metal strips and rods
WO2007137740A1 (de) * 2006-05-26 2007-12-06 Sms Demag Ag Verfahren und vorrichtung zum herstellen eines metallbandes durch stranggiessen
WO2007137748A2 (de) 2006-05-26 2007-12-06 Sms Demag Ag VORRICHTUNG UND VERFAHREN ZUM HERSTELLEN EINES METALLBANDES DURCH STRANGGIEßEN
WO2007137748A3 (de) * 2006-05-26 2008-04-17 Sms Demag Ag Vorrichtung und verfahren zum herstellen eines metallbandes durch stranggiessen
US20090165986A1 (en) * 2006-05-26 2009-07-02 Seidel Juergen Method and device for producing a metal strip by continuous casting
US20090178778A1 (en) * 2006-05-26 2009-07-16 Seidel Juergen Method and Device for Producing a Metal Strip by Continuous Casting
AU2007267402B2 (en) * 2006-05-26 2010-05-06 Sms Siemag Aktiengesellschaft Device and method for producing a metal strip by continuous casting
AU2007267472B2 (en) * 2006-05-26 2010-05-13 Sms Siemag Aktiengesellschaft Method and device for producing a metal strip by continuous casting
KR101068460B1 (ko) 2006-05-26 2011-09-28 에스엠에스 지마크 악티엔게젤샤프트 연속 주조를 통한 금속 스트립 제조 방법 및 그 장치
CN101448589B (zh) * 2006-05-26 2012-05-30 Sms西马格股份公司 通过连铸用于制造金属带的装置和方法
CN110653262A (zh) * 2019-09-20 2020-01-07 中冶赛迪工程技术股份有限公司 一种无头轧制棒材生产线工艺设备

Also Published As

Publication number Publication date
SE377431B (ko) 1975-07-07
ES382968A1 (es) 1973-04-16
NL7012499A (ko) 1971-03-01
BE754429A (ko) 1971-01-18
DE2042020A1 (de) 1971-03-11
LU59345A1 (ko) 1971-03-25
ATA755670A (de) 1975-03-15
ZA705480B (en) 1971-04-28
JPS5031871B1 (ko) 1975-10-15
CA926084A (en) 1973-05-15
GB1287824A (ko) 1972-09-06
FR2058411A1 (ko) 1971-05-28
NO133873B (ko) 1976-04-05
FR2058411B1 (ko) 1973-01-12
NO133873C (ko) 1976-07-14
AT326597B (de) 1975-12-29

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