DE918479C - Process for the manufacture of perfect rolled products from cast steel bars - Google Patents

Process for the manufacture of perfect rolled products from cast steel bars

Info

Publication number
DE918479C
DE918479C DEB8593A DEB0008593A DE918479C DE 918479 C DE918479 C DE 918479C DE B8593 A DEB8593 A DE B8593A DE B0008593 A DEB0008593 A DE B0008593A DE 918479 C DE918479 C DE 918479C
Authority
DE
Germany
Prior art keywords
strand
rolled products
perfect
manufacture
steel
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.)
Expired
Application number
DEB8593A
Other languages
German (de)
Inventor
Dipl-Ing Sepp Ammareller
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.)
GUSSSTAHLWERK BOCHUMER VER AG
Original Assignee
GUSSSTAHLWERK BOCHUMER VER AG
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 GUSSSTAHLWERK BOCHUMER VER AG filed Critical GUSSSTAHLWERK BOCHUMER VER AG
Priority to DEB8593A priority Critical patent/DE918479C/en
Application granted granted Critical
Publication of DE918479C publication Critical patent/DE918479C/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Metal Rolling (AREA)

Description

Verfahren zum Herstellen einwandfreier Walzerzeugnisse aus gegossenen Stahlsträngen Einer der großen Vorteile des, Stranggießens. von Metallern besteht darin, da-ß es möglich, ist, den ans der Stranggießkokille austretenden Stranig ohne besondere Vorbereitungsarbeiten auf dünnere Querschnitte zu versalzen. In. der 'Mehrzahl der Fälle sind diese Walzarzeugn.i;sse einwandfrei. Das Stranggießen von Stahl isst: ebenfalls bekannt und trotz erheblich größerer Schwierigkeiten als bei niiedrigesrscbme@lzenden, Metallein in steigendem Maße, in die Praxis eingeführt worden.Process for producing perfect rolled products from cast Steel Strands One of the great advantages of continuous casting. consists of metallers in that it is possible, the strand emerging from the continuous casting mold To over-salt to thinner cross-sections without any special preparatory work. In. in the majority of cases these rolled products are flawless. Continuous casting eats of steel: also known and despite considerably greater difficulties than in the case of low metal levels, metals in increasing measure, introduced into practice been.

Erfindungsgemäß wird vorgeschlagen, einer Stahlstrang anschließend an. das Gießen und. vor dem 1'erwalzen allseitig ..der Wirkung einer scharf oxydierenden Flamme, z. B. von Sanerstoff-, Sauerstoff-Acetylen- oder Sauerstoff-Propangass.-Bren.nern, auszusetzen, um die! Oberfläche des Stranges bis zu einer gewünschten Tiefe zu ve rzundern. Falls es erwünscht oder erforderlich ist, kann der Zunder vor dem Walzen in bekannter Weise, z. B. durch, Abspritzen, mit Wasser, wei'tgebcnd wieder beseitigt werden.According to the invention it is proposed to connect a steel strand at. pouring and. before rolling on all sides .. the effect of a sharply oxidizing Flame, e.g. B. of sanitation, oxygen-acetylene or oxygen-propane gas burners, expose to the! Surface of the strand to a desired depth to be ve to scale. If desired or necessary, the scale can be removed before rolling in a known manner, e.g. B. by, hosing down, with water, whitened again eliminated will.

Erst die auf diese Weise vorgenommene Ver -a.rbeiitung eines Stahlstranges gibt. die Gewähr, da:ß einwandfreie Walzerzeugnisse aus dem gegassenen; Stahlstrang erhalten «-erden. Der Erfolg des Verfahrens gemäß der Erfindung beruht offem.-ba,r, darauf, daß beim Stranggießen von Stahl auftretende Oberflächenfehler rechtzeitig beseitigt und, soweit sie in Einzelfällen durch das A'bflämmen der Oberfläche des Stranges nicht ganz beseitigt sein sollten, leicht erkennbar werden.First the processing of a steel strand carried out in this way gives. the guarantee that: ß perfect rolled products from the alley; Steel strand receive «- earth. The success of the method according to the invention is based on openem.-ba, r, ensure that surface defects occurring during the continuous casting of steel are timely eliminated and, to the extent that they are Strand should not be completely eliminated, can be easily identified.

Der Gasverbrauch b:im Abflämmen des Stahlstranges ist um, so geringer, je stärker diie vom Gießen im Strang noch verbliebene Wärme ausgenutzt wird.The gas consumption b: in the scarfing of the steel strand is the less, the more the heat remaining in the strand from casting is used.

Da durch das Abfämmen und das. gegebenenfalls nachfolgende Abspritzen mit @i'asser Temperaturunterschiede im Querschnitt des Stranges auftreten können, kann: es sich, empfehlen, den behandelten Strang vor dem Walzen durch eine Wärmeausgleichvorrichtung, die gegebenenfalls zur Regelung der Temperatur des Stranges heizbar ist, zu. führen.Because of the dismantling and the possibly subsequent hosing down with @ i'asser temperature differences occur in the cross section of the strand can, can: it is recommended to pass the treated strand through a heat equalization device before rolling, which can optionally be heated to regulate the temperature of the strand. to lead.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Herstellen einwandfreier Walzerzeugnisse aus gegossenen; Stahlsträngen., daidtTch gekennzeichnet, daß der Stahlstrang anschließend an: das Gießen. und vor dem Walzen allseitig der Wirkung einer scharf oxydierenden Flaimme, z. B. von Szuerstof-, Sauerstoff-Acetylen- oder Sauerstaff-Propangas- B.ren;nern, so ausgejsetzt "vi;rd., da,B die Ober- fläche des; Stranges bis zu einer gewünschten Tiefe fortlaufend, verzund ert. 2. Verfahren nach Anspruch i, dadurch ge- kennzeichnet, daB der Stahilstrang vor dem Walzen fortlaufend, z. B. durch A:nispritzen mit Wasser, von dem Zunder weitgehend be- freit wird. 3. Verfahren, nach Anspruch i und. 2, d.aid.urc:h. gekennzeichnet, d,aß der behandelte Strang vor dem Walzen: durch eine gegebenenfalls heizbare Wärmcausgleichsvorrich,tung geführt wird.
PATENT CLAIMS: i. Process for producing perfect rolled products from cast; Steel strands., DaidtTch marked that the steel strand is connected to: the casting. and before rolling on all sides the effect of a sharply oxidizing flaimme, z. B. of Szuerstof-, Oxygen-acetylene or oxygen-propane gas B.ren; nern, so exposed "vi; rd., Because, B the upper area of; Strand up to a desired one Continuous depth, scaled. 2. The method according to claim i, characterized in that indicates that the steel strand is in front of the Rolling continuously, e.g. B. by A: nispritzen with water, of which the tinder is largely becomes free. 3. The method according to claim i and. 2, d.aid.urc: h. marked, d, pre-ate the treated strand the rolling: by an optionally heatable Heat compensation device is performed.
DEB8593A 1950-08-05 1950-08-05 Process for the manufacture of perfect rolled products from cast steel bars Expired DE918479C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB8593A DE918479C (en) 1950-08-05 1950-08-05 Process for the manufacture of perfect rolled products from cast steel bars

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB8593A DE918479C (en) 1950-08-05 1950-08-05 Process for the manufacture of perfect rolled products from cast steel bars

Publications (1)

Publication Number Publication Date
DE918479C true DE918479C (en) 1954-09-27

Family

ID=6955915

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB8593A Expired DE918479C (en) 1950-08-05 1950-08-05 Process for the manufacture of perfect rolled products from cast steel bars

Country Status (1)

Country Link
DE (1) DE918479C (en)

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