US3837207A - Process of continuously hot-forming continuous cast steel stock - Google Patents

Process of continuously hot-forming continuous cast steel stock Download PDF

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Publication number
US3837207A
US3837207A US00245809A US24580972A US3837207A US 3837207 A US3837207 A US 3837207A US 00245809 A US00245809 A US 00245809A US 24580972 A US24580972 A US 24580972A US 3837207 A US3837207 A US 3837207A
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United States
Prior art keywords
section
stock
axes
rolls
pair
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Expired - Lifetime
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US00245809A
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English (en)
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B Tarmann
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Gebrueder Boehler and Co AG
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Gebrueder Boehler and Co AG
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Assigned to AMSTED INDUSTRIES INCORPORATED, A CORP. OF DE. reassignment AMSTED INDUSTRIES INCORPORATED, A CORP. OF DE. RELEASED BY SECURED PARTY (SEE DOCUMENT FOR DETAILS). Assignors: FIRST NATIONAL BANK OF CHICAGO, AS AGENT
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    • 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
    • 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

  • This invention relates to a process of continuously hot-forming continuous cast steel stock having a square or rectangular cross-section which has a shortest side length of more than 100 millimeters and a side length ratio between 111.5 and 1511, wherein the continuous stock is deformed by grooved rolls and with utilization of the casting heat.
  • Such processes are particularly adopted to enable the casting of continuous stock which is relatively large in cross-section so that the casting rate can be increased and liquid steel can be cast at a given rate in a continuous casting plant to form relatively few continuous castings.
  • the great reduction in cross-section by the continuous deformation results in continuous stock which is much smaller in cross-section, such as is often 'required for subsequent shaping operations.
  • one or more pairs of rolls are used. Where only one pair of rolls are used, continuous stock having a cross-section of, e.g., 130 millimeters x 95 millimeters, is upset and deformed into a crosssection of 100 millimeters x 100 millimeters by a pair of horizontal rolls having a box-shaped groove pass.
  • This object is accomplished according to the invention in that continuous stock having substantially the ascast cross-section is subjected to a deformation of at least percent by a pair of rolls in such a manner that all corner zones of the as-cast cross-section lie in flat or less strongly curved side face zones of the deformed cross-section.
  • the grooved rolls of the first pair of rolls which deform the continuous stock exert a strong rolling pressure on the corners of the stock so that these corners are forced into the stock.
  • the delicate corners of the continuous casting are subjected only to compressive stresses so that cracks are avoided.
  • the invention may be carried out with rolls having groove passes in various shapes.
  • the deformation is effected by a pair of rolls having an oval-section groove pass and the long axis of the cross-section of the groove pass and two parallel sides of the continuous stock entering the groove pass are parallel to the roll axes.
  • the deformation is effected by a pair of rolls having an octagonal-section groove pass having a cross-section having axes of symmetry in different lengths and the long axis of symmetry and two parallel sides of the continuous stock entering the groove pass are parallel to the roll axes.
  • the deformation is effected by a pair of rolls having a hexagonal-section groove pass and one diagonal of the groove pass cross-section and two parallel sides of the continuous stock entering the groove pass are parallel to the roll axes.
  • the deformation is effected by a pair of rolls defining a diamond-section groove pass and the long diagonal of the cross-section of the groove pass and two parallel sides of the continuous stock entering the groove pass are parallel to the roll axes.
  • the deformation is effected by a pair of rolls defining a gothic-section groove pass and the long diagonal of the cross-section of the groove pass and two parallel sides of the continuous 'stock entering the groove pass are parallel to the roll axes.
  • the deformed continuous stock may be deformed further to square-section continuous stock by another pair of rolls which define a square-section groove pass and have axes at right angles to those of the first pair of rolls.
  • FIG. 1 shows an oval-section groove pass
  • FIG. 2 is an octagonal-section groove pass
  • FIG. 3 a hexagonal-section groove pass
  • FIG. 4 a diamond-section groove pass
  • FIG. 5 a gothic-section groove pass
  • FIGS. la 5a illustrate the strands of FIGS. 1 5, respectively, passing through second groove passes;
  • FIGS. 1b 3b illustrate the strands of FIGS. 1 3, respectively, passing through third groove passes.
  • cross-section is deformed by the pair of rolls 1, I having horizontal axes.
  • the continuous stock is entered into the groove pass so that the parallel sides a are horizontal.
  • the stock is continuously produced in an upright mold continuous casting and by means of a curved stock guide is deflected into an approximately horizontal direction and in the form shown is entered between the pair of horizontal rolls 1, 1.
  • These rolls define an oval-section groove pass, which has a long axis which is also horizontal, parallel to the roll axes.
  • the deformed stock has a cross-section conforming to that of the groove pass and the corner zones k of the as-cast cross-section now lie in the less strongly curved side face zones k zones of the deformed crosssection, i.e., those zones which during the deformation are subjected to the strongest tensile stresses, were originally disposed at the flat side faces of the as-cast cross-section, where the same is less liable to crack because they are at a higher temperature.
  • the deformation according to the invention is controlled in consideration of the different deformability characteristics of different portions of the as-cast cross-section.
  • FIG. la illustrates the subsequent deformation to a square-section stock by a second pair of rolls 2, 2',
  • the original corner zones k of the as-cast cross-section are disposed in the zones k" of the square-se ction rolled stock.
  • FIGS. 2 and 3 show the deformation of continuous stock having a rectangular as-cast cross-section.
  • the parallel sides a are somewhat longer than the sides b at right angles thereto.
  • the original corner zones k come to lie in flat side faces of the deformed stock so that the described results are produced.
  • FIGS. 4 and 5 the deformation is effected in a diamond-section groove pass or a gothic-section groove pass. In these cases too, the original corner zones of the as-cast cross-section come to lie in side faces which are flat or only slightly curved.
  • FIGS. lb, 2b and 3b show the further deformation by a pair of rolls 2" having a circular-section groove pass to form circular-section stock.
  • the advantages afforded by the invention reside particularly in that the continuous steel casting can be rolled to effect large reductions whereas corner cracks or corner brittleness need not be feared.
  • continuous stock larger in cross-section can be cast and can be continuously rolled in fewer passes to that smaller size which is required for the further processing.
  • two pairs of rolls are required, although three or four pairs of rolls may be used where a particularly large reduction is desired.
  • the groove pass configurations known for the rolling of steel rod may be used in the second and following pairs of rolls.
  • a continuous process of hot-forming continuous steel stock which has been continuously cast in a rectangular as-cast cross-section which has corner zones and has a shortest side length in excess of 100 millimeters and a side length ratio between 1:15 and 1.5:l, which comprises subjecting said stock with utilization of its casting heat to a one step deformation of at least 20 percent by a pair of grooved rolls to form deformed continuous steel stock having side faces which are less curved in cross-section than said corner zones and which include the material of all said corner zones of said as-cast cross-section.
  • said stock is entered into said groove pass with two parallel sides of said as-cast cross-section being parallel to said roll axes.
  • said stock is entered into said groove pass with two parallel sides of said as-cast cross-section being parallel to said roll axes.
  • said stock is entered into said groove pass with two parallel sides of said as-cast cross-section being parallel to said roll axes.
  • said stock is entered into said groove pass with two parallel sides of said as-cast cross-section being parallel to said roll axes.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Continuous Casting (AREA)
US00245809A 1971-04-21 1972-04-20 Process of continuously hot-forming continuous cast steel stock Expired - Lifetime US3837207A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19712119347 DE2119347A1 (de) 1971-04-21 1971-04-21 Verfahren zur kontinuierlichen Warmverformung von kontinuierlich gegossenen Stahlsträngen

Publications (1)

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US3837207A true US3837207A (en) 1974-09-24

Family

ID=5805364

Family Applications (1)

Application Number Title Priority Date Filing Date
US00245809A Expired - Lifetime US3837207A (en) 1971-04-21 1972-04-20 Process of continuously hot-forming continuous cast steel stock

Country Status (14)

Country Link
US (1) US3837207A (cs)
JP (1) JPS4848355A (cs)
AT (1) AT326598B (cs)
BE (1) BE781938A (cs)
BR (1) BR7202382D0 (cs)
CA (1) CA969785A (cs)
CH (1) CH547668A (cs)
DE (1) DE2119347A1 (cs)
ES (1) ES401746A1 (cs)
FR (1) FR2133617B1 (cs)
GB (1) GB1376378A (cs)
IT (1) IT952734B (cs)
SE (1) SE389974B (cs)
ZA (1) ZA722101B (cs)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4391117A (en) * 1978-06-02 1983-07-05 Friedrich Kocks Gmbh & Company Rolling mills and methods of rolling
US4422884A (en) * 1977-10-20 1983-12-27 Concast Ag Method of treating a continuously cast strand formed of stainless steel
US4685320A (en) * 1981-08-05 1987-08-11 Kawasaki Steel Corporation Method of rolling steel rods and wires with grooveless rolls and grooveless rolling entry guide
US4924585A (en) * 1986-09-04 1990-05-15 Kawasaki Steel Corp. Method and apparatus for continuous compression forging of continuously cast steel
US6205835B1 (en) * 1998-12-14 2001-03-27 Sms Schloemann-Siemag Aktiengesellschaft Roll stand arrangement for rolling wire
RU2227760C2 (ru) * 2002-07-08 2004-04-27 Открытое акционерное общество "Северсталь" Способ прокатки сортовых профилей
CN111842480A (zh) * 2020-07-08 2020-10-30 鞍钢股份有限公司 一种双孔型系统轧制规格φ12.3mm线材产品的调整方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2170150C1 (ru) * 1999-11-09 2001-07-10 ОАО "Нижнетагильский металлургический комбинат" Способ прокатки профилей круглого сечения
RU2190487C2 (ru) * 1999-11-29 2002-10-10 Открытое акционерное общество "НОСТА" Способ прокатки круглых сортовых профилей большого диаметра
RU2295405C1 (ru) * 2005-07-27 2007-03-20 Открытое акционерное общество "Новокузнецкий металлургический комбинат" Способ прокатки круглых сортовых профилей с использованием трехвалковых клетей на крупносортовых и рельсобалочных станах
RU2418642C2 (ru) * 2009-06-29 2011-05-20 Открытое акционерное общество Акционерная холдинговая компания "Всероссийский научно-исследовательский и проектно-конструкторский институт металлургического машиностроения имени академика Целикова" (ОАО АХК "ВНИИМЕТМАШ") Способ прокатки шестигранных прутков

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066314A (en) * 1935-02-21 1937-01-05 Bartscherer Franz Process of improving the structure of steel products
FR1312289A (fr) * 1961-02-03 1962-12-14 Schloemann Ag Procédé de laminage de produits à section transversale ronde, notamment de fils
US3517537A (en) * 1967-09-15 1970-06-30 Southwire Co Method of hot-forming continuously cast aluminum
US3561105A (en) * 1967-06-28 1971-02-09 Southwire Co Method of producing a hot-formed aluminum base product

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR494460A (cs) * 1900-01-01
FR1213692A (fr) * 1957-10-09 1960-04-04 Moeller & Neumann Gmbh Train de laminage continu pour la fabrication de fers ronds et carrés
GB1081950A (en) * 1965-11-05 1967-09-06 Schloemann Ag Improvements in or relating to a method of rolling in a rolling mill
DE2014878B2 (de) * 1970-04-01 1975-04-10 Wsesojusnij Nautschno-Issledowatelskij I Projektno-Konstruktorskij Institut Metallurgitscheskowo Maschinostrojenija Moskau Verfahren zum Walzen von gegossenem Metallgut mit gerader Zahl von Begrenzungsflächen

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2066314A (en) * 1935-02-21 1937-01-05 Bartscherer Franz Process of improving the structure of steel products
FR1312289A (fr) * 1961-02-03 1962-12-14 Schloemann Ag Procédé de laminage de produits à section transversale ronde, notamment de fils
US3561105A (en) * 1967-06-28 1971-02-09 Southwire Co Method of producing a hot-formed aluminum base product
US3517537A (en) * 1967-09-15 1970-06-30 Southwire Co Method of hot-forming continuously cast aluminum

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4422884A (en) * 1977-10-20 1983-12-27 Concast Ag Method of treating a continuously cast strand formed of stainless steel
US4391117A (en) * 1978-06-02 1983-07-05 Friedrich Kocks Gmbh & Company Rolling mills and methods of rolling
US4685320A (en) * 1981-08-05 1987-08-11 Kawasaki Steel Corporation Method of rolling steel rods and wires with grooveless rolls and grooveless rolling entry guide
US4924585A (en) * 1986-09-04 1990-05-15 Kawasaki Steel Corp. Method and apparatus for continuous compression forging of continuously cast steel
US6205835B1 (en) * 1998-12-14 2001-03-27 Sms Schloemann-Siemag Aktiengesellschaft Roll stand arrangement for rolling wire
RU2227760C2 (ru) * 2002-07-08 2004-04-27 Открытое акционерное общество "Северсталь" Способ прокатки сортовых профилей
CN111842480A (zh) * 2020-07-08 2020-10-30 鞍钢股份有限公司 一种双孔型系统轧制规格φ12.3mm线材产品的调整方法

Also Published As

Publication number Publication date
GB1376378A (en) 1974-12-04
CA969785A (en) 1975-06-24
DE2119347B2 (cs) 1975-04-03
IT952734B (it) 1973-07-30
BE781938A (fr) 1972-07-31
CH547668A (de) 1974-04-11
DE2119347A1 (de) 1972-11-02
AT326598B (de) 1975-12-29
FR2133617A1 (cs) 1972-12-01
JPS4848355A (cs) 1973-07-09
FR2133617B1 (cs) 1976-10-29
SE389974B (sv) 1976-11-29
ZA722101B (en) 1972-12-27
BR7202382D0 (pt) 1973-05-03
ES401746A1 (es) 1975-03-16

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Legal Events

Date Code Title Description
AS Assignment

Owner name: AMSTED INDUSTRIES INCORPORATED, A CORP. OF DE., IL

Free format text: RELEASED BY SECURED PARTY;ASSIGNOR:FIRST NATIONAL BANK OF CHICAGO, AS AGENT;REEL/FRAME:005070/0731

Effective date: 19880831