DD258378B5 - Process for the continuous production of steel rod finishing lengths - Google Patents
Process for the continuous production of steel rod finishing lengths Download PDFInfo
- Publication number
- DD258378B5 DD258378B5 DD30074487A DD30074487A DD258378B5 DD 258378 B5 DD258378 B5 DD 258378B5 DD 30074487 A DD30074487 A DD 30074487A DD 30074487 A DD30074487 A DD 30074487A DD 258378 B5 DD258378 B5 DD 258378B5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- lengths
- rolling
- steel
- cooling
- braked
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims description 19
- 239000010959 steel Substances 0.000 title claims description 19
- 238000000034 method Methods 0.000 title claims description 6
- 238000010924 continuous production Methods 0.000 title claims 3
- 238000005096 rolling process Methods 0.000 claims description 27
- 238000001816 cooling Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000009826 distribution Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000003111 delayed effect Effects 0.000 claims description 3
- 229910001294 Reinforcing steel Inorganic materials 0.000 claims description 2
- 238000004806 packaging method and process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 4
- 238000010438 heat treatment Methods 0.000 claims 2
- 230000009467 reduction Effects 0.000 claims 1
- 238000010008 shearing Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/28—Associations of cutting devices therewith
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B15/00—Arrangements for performing additional metal-working operations specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B15/0007—Cutting or shearing the product
- B21B2015/0014—Cutting or shearing the product transversely to the rolling direction
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/006—Pinch roll sets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/18—Switches for directing work in metal-rolling mills or trains
-
- 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
- B21B45/02—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 for lubricating, cooling, or cleaning
- B21B45/0203—Cooling
- B21B45/0209—Cooling devices, e.g. using gaseous coolants
- B21B45/0215—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes
- B21B45/0224—Cooling devices, e.g. using gaseous coolants using liquid coolants, e.g. for sections, for tubes for wire, rods, rounds, bars
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Description
Die Erfindung soll nachstehend an den Fig. 1 und 2 erläutert werden. Es zeigen:The invention will be explained below with reference to FIGS. 1 and 2. Show it:
Fig. 1: Grundriß der gesamten Einrichtung Fig. 2: Verlauf des Quertransportes.Fig. 1: Floor plan of the entire device Fig. 2: Course of the transverse transport.
Entsprechend Fig. 1 ist in einem Feinstahlwalzwerk hinter dem letzten Walzgerüst 1 eine Wasserkühlstrecke 2 zur schroffen Vorkühlung der warmen Walzader zwecks Erzeugung einer relativ kalten und harten Randschicht vorgesehen. Die kalte Randschicht ist eine Voraussetzung für die Erzielung hochqualitativer Schnittflächen und für die Vermeidung von Oberflächenbeschädigungen. Während die Abkühlung im Zentrum des Walzaderquerschnittes noch unerheblich ist, weist die ca. 20% der Querschnittsfläche betragende Randschicht beim Verlassen der Kühlrohre mindestens eine um 2000C niedrigere Temperatur auf. In der unmittelbar danach angeordneten rotierenden Schlagschere 3 wird die Walzader mit sehr hoher Schneidgeschwindigkeit der Messer (10...50m/s) bei paralleler Führung der sich gegeneinander bewegenden Profilmesser senkrecht zur Walzader nach dem Doppelschnittprinzip zerteilt. Die Kombination der Walzader mit kalter Randschicht und der beschriebenen Schere ergibt ein sprödes Schneidverhalten des Walzgutes und ein senkrechtes Zerteilen des Walzgutes; es wird somit eine Schnittqualität erreicht, die bisher nur durch stationäre Kaltscheren realisierbar war. Die aufeinanderfolgenden Fertiglängen werden durch die Auslaufarmatur 4, den Treiber 14 und durch die rotierende Verteilerweiche 5 in spezielle, räumliche, nebeneinanderliegende Verteilerrohre 6, deren minimale Anzahl drei Stück beträgt, eingeleitet. Somit ist die Voraussetzung für den räumlichen Überholvorgang während der Abbremsung geschaffen. Die Entfernung von Schnittstellung der Schlagschere 3 bis Ende Verteilerrohre 6 soll mindestens der größten Stabstahl-Fertiglänge entsprechen. Die Walzgeschwindigkeit, Länge des Stabstahles, Länge und Auslenkwinkel der Verteilerweiche sowie der Mittenabstand und die Ausbildung der räumlich angeordneten Verteilerrohre sind mit der Drehzahl der rotierenden Verteilerweiche 5 abgestimmt. Im Abstand der Austrittsöffnungen der Verteilerrohre 6 sind Kompaktbremseinrichtungen 7 bzw. wahlweise austauschbar Gegenstromkühlrohre 8 mit hoher Bremswirkung räumlich angeordnet; somit können die Stabstahl-Fertiglängen maximal verzögert und auch gekühlt werden. Sie verlassen diese Bremsstrecken mit einer Geschwindigkeit unter 8 m/s.1, a water cooling section 2 is provided in a fine-steel rolling mill behind the last mill stand 1 for the rough pre-cooling of the hot rolling stock in order to produce a relatively cold and hard boundary layer. The cold edge layer is a prerequisite for achieving high quality cut surfaces and for avoiding surface damage. While the cooling in the center of the rolling core cross-section is still insignificant, the approximately 20% of the cross-sectional area amounting edge layer on leaving the cooling tubes at least one 200 0 C lower temperature. In the immediately thereafter arranged rotating impact shears 3, the rolling stock with very high cutting speed of the knife (10 ... 50m / s) with parallel guidance of the mutually moving profile knife perpendicular to the rolling stock by the double-cut principle. The combination of cold-rolled roller and the shear described results in a brittle cutting behavior of the rolling stock and a vertical division of the rolling stock; Thus, a cut quality is achieved, which was previously only possible by stationary cold shears. The successive finished lengths are introduced through the outlet fitting 4, the driver 14 and through the rotary distributor 5 in special, spatial, adjacent distributor tubes 6, the minimum number is three pieces. Thus, the prerequisite for the spatial overtaking process is created during deceleration. The distance from the cutting position of the cutting shear 3 to the end of the distribution pipes 6 should correspond at least to the largest finished bar steel length. The rolling speed, length of the bar steel, length and deflection angle of the distributor and the center distance and the formation of the spatially arranged distribution pipes are matched to the rotational speed of the rotating distributor 5. At a distance from the outlet openings of the distribution pipes 6 compact braking devices 7 and optionally interchangeable countercurrent cooling tubes 8 are arranged spatially with high braking effect; Thus, the bar steel finished lengths can be delayed maximum and also cooled. You leave these braking distances at a speed below 8 m / s.
In den sich anschließenden Abschlußbremsstrecken 9 ist die Bremswirkung regelbar, so daß der Stabstahl mit definierter Minimalgeschwindigkeit austritt. Mit diesen Einrichtungen werden die räumlich nebeneinanderlaufenden Fertiglängen gleichzeitig in eben nebeneinanderlaufende Stäbe umgewandelt. Das Walzgut kommt in den Auflauf rinnen 10 stets in der gleichen Endlage zur Ruhe und wird dann vom Quertransporteur 11 übernommen. Durch die Bündiglegeeinrichtung 12 können letzte Lagekorrekturen vorgenommen werden. Im Verlaufe des Quertransportes können weitere technologische Schritte erfolgen. Für eine schnelle Abkühlung sind Zusatzbelüftungsanlagen bzw. Wasserduschen und Tauchbecken vorgesehen. Für die Wärmerückgewinnung sind entsprechende Ausrüstungen installiert. Mit Abgangstemperaturen von maximal 100°C gelangt der Stabstahl in die Paketier- und Bindeanlage; von hier aus erfolgt der Versand.In the subsequent final braking distances 9, the braking effect can be regulated, so that the bar steel emerges at a defined minimum speed. With these facilities, the spatially adjacent finished lengths are simultaneously converted into just running side by side bars. The rolling stock comes in the casserole troughs 10 always in the same end position to rest and is then taken over by the transverse feed 11. Through the leveling device 12 last position corrections can be made. In the course of the transverse transport further technological steps can take place. For a quick cooling additional ventilation systems or showers and plunge pools are provided. For heat recovery appropriate equipment is installed. With outlet temperatures of maximum 100 ° C, the steel bar enters the packaging and binding system; from here the dispatch takes place.
Eine weitere Möglichkeit des technologischen Ablaufes im Bereich des Quertransportes zeigt die Fig. 2. Die erste Fertiglänge läuft durch die Abschlußbremsstrecke 9.1 auf die Auflaufrinne 10.1 und den Quertransporteur 11.1. Der nächste Stab wird mittels eines Überleitungsrohres 13 über diese Ausrüstungen zu der Abschlußbremsstrecke 9.2 und der Auflauf rinne 10.2 sowie zu dem Querförderer 11.2 geleitet. Sinngemäß verhält es sich mit dem dritten Stab, der dem 3. Ausrüstungskomplex zugeleitet wird. In dem Fall, in dem in der Walzstaffel das Mehrkaliberwalzen oder „slit-rolling" zur Anwendung kommt und an die Schnittflächenqualität — wie ζ. B. bei Betonstahl — keine hohen Forderungen gestellt werden, kann hinter den Wasserkühlrohren 2 eine bekannte fliegende Schere für den gleichzeitigen Schnitt mehrerer Stäbe zum Einsatz gelangen. Von der Auslaufarmatur 4 an ist dann eine Aufteilung der Stäbe auf verschiedene Kanäle möglich.A further possibility of the technological process in the field of transverse transport is shown in FIG. 2. The first finished length passes through the final braking distance 9.1 on the casserole 10.1 and the transverse conveyor 11.1. The next bar is passed by means of a transfer pipe 13 through these equipment to the final brake line 9.2 and the casserole trough 10.2 and to the cross conveyor 11.2. The same applies to the third staff, which is sent to the 3rd equipment complex. In the case where multi-caliber rolling or "slit-rolling" is used in the rolling scale and no high demands are placed on the cut surface quality - such as in reinforcing steel - a well-known flying shears can be placed behind the water cooling pipes 2 From the outlet fitting 4 to then a division of the rods on different channels is possible.
1 - Walzgerüst1 - rolling stand
2 - Wasserkühlstrecke2 - water cooling route
3 - Schlagschere3 - Throw shears
4 - Auslaufarmatur4 - outlet fitting
5 - Verteilerweiche5 - Distribution diverter
6 - Verteilerrohre6 - distribution pipes
7 - Kompaktbremseinrichtung7 - Compact braking device
8 - Gegenstromkühlrohre8 - Countercurrent cooling tubes
9 - Abschlußbremseinrichtung (9.1 - 9.3)9 - Final brake device (9.1 - 9.3)
10 - Auf lauf rinne (10.1 - 10.3)10 - Runner (10.1 - 10.3)
11 - Quertransporteur (11.1 - 11.3)11 - Cross conveyor (11.1 - 11.3)
12 -Bündiglegeeinrichtung12 - Tilting device
13 - Überleitungsrohr13 - Transfer pipe
14 - Treiber14 - Driver
Claims (2)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD30074487A DD258378B5 (en) | 1987-03-13 | 1987-03-13 | Process for the continuous production of steel rod finishing lengths |
DE19873725886 DE3725886A1 (en) | 1987-03-13 | 1987-08-05 | Method for the continuous production of finished lengths of bar steel |
IT21878/87A IT1222639B (en) | 1987-03-13 | 1987-09-11 | PROCEDURE FOR THE CONTINUOUS REALIZATION OF FINISHED LENGTHS OF STEEL BARS |
SE8703911A SE467240B (en) | 1987-03-13 | 1987-10-09 | SET FOR CONTINUOUS PREPARATION OF STEEL STEEL DINING LENGTHS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DD30074487A DD258378B5 (en) | 1987-03-13 | 1987-03-13 | Process for the continuous production of steel rod finishing lengths |
Publications (2)
Publication Number | Publication Date |
---|---|
DD258378A1 DD258378A1 (en) | 1988-07-20 |
DD258378B5 true DD258378B5 (en) | 1997-03-20 |
Family
ID=5587455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DD30074487A DD258378B5 (en) | 1987-03-13 | 1987-03-13 | Process for the continuous production of steel rod finishing lengths |
Country Status (4)
Country | Link |
---|---|
DD (1) | DD258378B5 (en) |
DE (1) | DE3725886A1 (en) |
IT (1) | IT1222639B (en) |
SE (1) | SE467240B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BRPI0501363A (en) * | 2004-04-21 | 2005-12-06 | Morgan Construction Co | Cutting and splitting scissors arrangement |
US7140221B2 (en) | 2004-04-21 | 2006-11-28 | Morgan Construction Company | Divide and chop shear arrangement |
US7918327B2 (en) | 2009-07-21 | 2011-04-05 | Siemens Industry, Inc. | Apparatus for laterally transferring bars from a receiving path to a braking path |
PL2821153T3 (en) | 2013-07-05 | 2018-02-28 | Primetals Technologies Austria GmbH | System and method for cutting to length long rolled products coming from different strands of a rolling mill |
CN105414212A (en) * | 2015-12-16 | 2016-03-23 | 重庆麦拓科技有限公司 | Water cooling device |
CN112620357A (en) * | 2020-12-03 | 2021-04-09 | 张家港宏昌钢板有限公司 | Rolling control method of 4-time length pipeline steel |
-
1987
- 1987-03-13 DD DD30074487A patent/DD258378B5/en not_active IP Right Cessation
- 1987-08-05 DE DE19873725886 patent/DE3725886A1/en not_active Withdrawn
- 1987-09-11 IT IT21878/87A patent/IT1222639B/en active
- 1987-10-09 SE SE8703911A patent/SE467240B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE467240B (en) | 1992-06-22 |
IT8721878A0 (en) | 1987-09-11 |
DE3725886A1 (en) | 1988-09-22 |
DD258378A1 (en) | 1988-07-20 |
SE8703911L (en) | 1988-09-14 |
IT1222639B (en) | 1990-09-05 |
SE8703911D0 (en) | 1987-10-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EP | Request for examination under paragraph 12(1) filed | ||
AUF | Maintained (sect. 12/3 extension act | ||
B5 | Patent specification, 2nd publ. accord. to extension act | ||
ENJ | Ceased due to non-payment of renewal fee |