DE1758380B1 - METHOD FOR MANUFACTURING ROLLED WIRE - Google Patents
METHOD FOR MANUFACTURING ROLLED WIREInfo
- Publication number
- DE1758380B1 DE1758380B1 DE19681758380 DE1758380A DE1758380B1 DE 1758380 B1 DE1758380 B1 DE 1758380B1 DE 19681758380 DE19681758380 DE 19681758380 DE 1758380 A DE1758380 A DE 1758380A DE 1758380 B1 DE1758380 B1 DE 1758380B1
- Authority
- DE
- Germany
- Prior art keywords
- wire rod
- line
- wire
- finishing
- temperature
- 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.)
- Pending
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
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
-
- 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
-
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
- C21D9/525—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length for wire, for rods
-
- 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
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S72/00—Metal deforming
- Y10S72/70—Deforming specified alloys or uncommon metal or bimetallic work
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Metal Rolling (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Description
mit einer Abkühlungsgeschwindigkeit von minde- 20 aber auch gute elastische Eigenschaften hat.with a cooling rate of at least 20 but also has good elastic properties.
stens 20 grd/sec bis auf die zwischen 480 und 580° C liegende Umwandlungstemperatur abgekühlt wird.at least 20 degrees / sec is cooled down to the transition temperature between 480 and 580 ° C.
Die Erfindung betrifft ein Verfahren zur Herstellung von Walzdraht in einem kontinuierlich arbeitenden Walzwerk, wobei der Walzdraht unmittelbar hinter der Fertigstaffel des Walzwerkes von einer oberhalb Das erfindungsgemäße Verfahren, das zu dem angestrebten Ergebnis führt, ist dadurch gekennzeichnet, daß der Walzdraht vor dem Eintritt in die Fertigstaffel durch Beaufschlagung mit einem Kühlmittel bis nahe an den Ac3-Punkt abgekühlt wird, daß der Walzdraht nach dem Verlassen der Fertigstaffel so weiter abgekühlt wird, daß seine Temperatur spätestens 10 Sekunden nach dem Verlassen der Fertigstaffel die GOS-Linie des Eisen-Kohlenstoff-Diagramms durchstoßen hat und daß der Walzdraht schließlich mit einer Abkühlungsgeschwindigkeit von mindestens 20grd/ see bis auf die zwischen 480 und 5800C liegende Umwandlungstemperatur abgekühlt wird. Das erfindungsgemäße Verfahren besteht also imThe invention relates to a method for the production of wire rod in a continuously operating rolling mill, the wire rod directly behind the finishing section of the rolling mill from above The finishing relay is cooled down to close to the A c3 point by applying a coolant, so that the wire rod is cooled down further after leaving the finishing relay that its temperature no later than 10 seconds after leaving the finishing relay is the GOS line of the iron-carbon has pierced diagram and that the wire finally at a cooling rate of at least 20grd / see is up to the lying 480-580 0 C transition temperature cooled. The inventive method consists in
des .4c3-Punktes liegenden Walztemperatur schnell auf 35 wesentlichen in zwei Verfahrensschritten. Währendof the .4 c3 point lying rolling temperature quickly to 35 essentially in two process steps. While
eine zwischen 480 und 580° C liegende Umwandlungstemperatur abgekühlt wird. a transition temperature between 480 and 580 ° C is cooled.
Die Herstellung von Walzdraht geschieht bekanntlich grundsätzlich in der Weise, daß zunächst als Ausman bei allen bekannten Verfahren zur Herstellung von Walzdraht den Walzdraht erst nach der Fertigstaffel des Walzwerkes behandelt, nämlich patentiert hat, erfolgt erfindungsgemäß eine zusätzliche BehandlungThe production of wire rod is generally known in such a way that initially as Ausman in all known processes for the production of wire rod, the wire rod only after the finishing relay of the rolling mill treated, namely patented, an additional treatment takes place according to the invention
gangsmaterial, als Halbzeug, Knüppel in Stoßofen 40 des Walzdrahtes, nämlich die Abkühlung des Walzraw material, as a semi-finished product, billets in pusher furnace 40 of the wire rod, namely the cooling of the roll
auf Walztemperatur gebracht werden, daß dann die auf Walztemperatur gebrachten Knüppel dem aus Vorstaffel, Zwischenstaffel und Fertigstaffel bestehenden Walzwerk zugeführt werden und daß schließdrahtes vor der Fertigstaffel bis nahe an den Ac3-Punkt; das ist der erste wesentliche Verfahrensschritt des erfindungsgemäßen Verfahrens. Der zweite Verfahrensschritt des erfindungsgemäßen Verfahrens besteht in be brought to rolling temperature, that the billets brought to rolling temperature are then fed to the rolling mill consisting of the preliminary section, intermediate section and finishing section and that the closing wire in front of the finishing section up to close to the A c3 point; this is the first essential step of the method according to the invention. The second step of the method according to the invention consists in
lieh der die Fertigstaffel verlassende Walzdraht — in 45 der besonderen Patentierung, d. h. in der im einzelnenlent the wire rod leaving the finishing line - in 45 of the special patenting, d. H. in the in detail
modernen, kontinuierlich arbeitenden Walzwerken beträgt die Walztemperatur in der Fertigstaffel etwa 1000 bis 12000C — »patentiert« wird, d.h., in besonderer Weise abgekühlt wird, um ein für die Weiterangegebenen Beeinflussung der Abkühlung des Walzdrahtes nach dem Verlassen der Fertigstaffel. Der zweite Verfahrensschritt ist im wesentlichen bereits Gegenstand eines älteren Vorschlags (deutsche OffenIn modern, continuously operating rolling mills, the rolling temperature in the finishing section is around 1000 to 1200 0 C - it is "patented", that is, it is cooled in a special way in order to influence the cooling of the wire rod after it has left the finishing section. The second procedural step is essentially the subject of an older proposal (German Offen
verarbeitung zu gezogenem Draht besonders günsti- 50 legungsschrift 1 583 986), so daß insoweit für dieseprocessing into drawn wire is particularly favorable - 50 application document 1 583 986), so that in this respect for this
ges Gefüge zu erhalten. Das angestrebte Gefüge besteht überwiegend aus Sorbit, d. h. einem Perlit mit so feinen Lamellen, daß sie lichtmikroskopisch nicht mehr auflösbar sind.to preserve the structure. The desired structure consists predominantly of sorbitol, i. H. a perlite with lamellae so fine that they can no longer be resolved with a light microscope.
Maßnahmen selbständig Schutz nicht begehrt wird. Die durch die Erfindung erreichten Vorteile sind zusammengefaßt darin zu sehen, daß aus erfindungsgemäß hergestelltem Walzdraht gezogener Draht so-Measures independent protection is not sought. The advantages achieved by the invention are summarized in the fact that wire drawn from wire rod manufactured according to the invention
Bei den bekannten Verfahren, von denen die Erfin- 55 wohl eine relativ hohe Zugfestigkeit und gute pla-In the known methods, of which the invention 55 probably a relatively high tensile strength and good pla-
dung ausgeht (vgl. die Literaturstelle »Draht-Welt«, 52. Jahrgang, 1966, Heft 10, S. 701 bis 709), erfolgt die »Patentierung« unmittelbar hinter dem Walzwerk, d. h. aus der Walztemperatur heraus. Bei einem anderen bekannten Verfahren zur Herstellung von Walzdraht wird der die Fertigstaffel verlassende Walzdraht zunächst abgekühlt, danach in einem sogenannten Patentierungsofen auf eine Temperatur oberhalb des 4.3-Punktes erhitzt und anschließend durch ein Bleibad, das eine Badtemperatur von etwa 500°.C hat, geführt; diese Art der Patentierung ist als »Bleibadpatentierung« bekannt. Durch das schnelle Abkühlen des Walzdrahtes auf eine zwischen 480 und 5800C stische Eigenschaften als auch gute elastische Eigenschaften aufweist, was weiter unten an Hand eines Beispieles im einzelnen dargelegt wird. Die für das erfindungsgemäße Verfahren erforderlichen Maßnahmen sind zudem mit relativ geringem Aufwand zu realisieren. Die erforderliche Kühleinrichtung kann vor der Fertigstaffel nämlich ohne räumliche oder konstruktive Schwierigkeiten angebracht werden. Im folgenden wird das erfindungsgemäße Verfahren an Hand eines Ausführungsbeispiels näher erläutert: Ein Walzdraht mit 0,66% C, 0,76% Mn, 0,23% Si, 0,019% P, 0,029% S, Rest Fe und übliche Verunreinigungen, wurde bei 85OC auf einen Durchmesser von(cf. the literature reference "Draht-Welt", 52nd year, 1966, issue 10, pp. 701 to 709), the "patenting" takes place directly behind the rolling mill, ie from the rolling temperature. In another known process for the production of wire rod, the wire rod leaving the finishing line is first cooled, then heated in a so-called patenting furnace to a temperature above 4.3 point and then passed through a lead bath, which has a bath temperature of around 500 ° C ; this type of patenting is known as "lead bath patenting". Has by the rapid cooling of the wire rod to a STIC 480-580 0 C properties and good elastic properties, as will be further set forth below of an example in detail. The measures required for the method according to the invention can also be implemented with relatively little effort. The required cooling device can namely be attached in front of the prefabricated relay without spatial or structural difficulties. The method according to the invention is explained in more detail below using an exemplary embodiment: A wire rod with 0.66% C, 0.76% Mn, 0.23% Si, 0.019% P, 0.029% S, the remainder Fe and usual impurities was used in 85OC to a diameter of
5,5 mm gewalzt, die Haspeleintrittstemperatur betrug 8000C. Zwei Sekunden nach dem Verlassen der Fertigstaffel wurde der Walzdraht mit einer durchschnittlichen Abkühlungsgeschwindigkeit von etwa 40 grd/sec auf 5200C abgekühlt und auf dieser Temperatur 12 Sekunden bis zum vollständigen Ablauf der y-a-Umwandlung gehalten. Ein Teil des Walzdrahtes wurde dann zu Draht mit einem Durchmesser von 2,2 mm gezogen. Folgende Werte wurden an dem Walzdraht bzw. an dem gezogenen Draht gemessen:5.5 mm rolled, the reel inlet temperature was 800 0 C. Two seconds after leaving the finishing group is the wire rod grd with an average cooling rate of about 40 / sec to 520 0 C and cooled to this temperature for 12 seconds to the completion of the ya - Conversion held. Part of the wire rod was then drawn into wire with a diameter of 2.2 mm. The following values were measured on the wire rod and the drawn wire:
21
2
114
113
115115
114
113
115
2020th
2. Gezogener Draht
(84% Verformung)2. Drawn wire
(84% deformation)
(kp/mm2)tensile strenght
(kp / mm 2 )
(r = 7,5 mm) Bends
(r = 7.5 mm)
(100 x</ltorsion
(100 x </ l
21
2
195
194
196192
195
194
196
28
27
2927
28
27
29
38
42
3940
38
42
39
Zum Vergleich werden im folgenden die Werte angegeben, die bei nach bekannten Verfahren hergestelltem Walzdraht bzw. daraus gezogenem Draht gemessen wurden:For comparison, the values given below are those produced by known processes Wire rod or wire drawn from it were measured:
1. Walzdraht
a) Bleibadpatentierung1. Wire rod
a) Lead bath patenting
Ring Nr.Ring no.
118 119 118 119118 119 118 119
2. Gezogener Draht
(84% Verformung)2. Drawn wire
(84% deformation)
a) Bleibadpatentierunga) Lead bath patenting
b) Luftpatentierungb) Air patenting
(kp/mm2)(kp / mm 2 )
(r = 7,5 mm)(r = 7.5 mm)
(100 x </l(100 x </ l
163165
163
1918th
19th
3938
39
Claims (1)
Priority Applications (10)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681758380 DE1758380B1 (en) | 1968-05-21 | 1968-05-21 | METHOD FOR MANUFACTURING ROLLED WIRE |
BE728878D BE728878A (en) | 1968-05-21 | 1969-02-25 | |
AT199469A AT294881B (en) | 1968-05-21 | 1969-02-27 | Process for the production of patented wire rod |
FR6905803A FR2008958A1 (en) | 1968-05-21 | 1969-03-04 | |
LU58151D LU58151A1 (en) | 1968-05-21 | 1969-03-06 | |
SE04010/69A SE357981B (en) | 1968-05-21 | 1969-03-21 | |
JP44022148A JPS5124448B1 (en) | 1968-05-21 | 1969-03-25 | |
GB23326/69A GB1224306A (en) | 1968-05-21 | 1969-05-07 | Improvements in or relating to processes for the production of patented rod |
NL696907642A NL150695B (en) | 1968-05-21 | 1969-05-19 | PROCESS FOR MANUFACTURING PATENTED STEEL WIRE WIRE. |
US826229A US3584494A (en) | 1968-05-21 | 1969-05-20 | High-flexibility steel wire and method of treating same |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681758380 DE1758380B1 (en) | 1968-05-21 | 1968-05-21 | METHOD FOR MANUFACTURING ROLLED WIRE |
Publications (1)
Publication Number | Publication Date |
---|---|
DE1758380B1 true DE1758380B1 (en) | 1973-07-12 |
Family
ID=5695003
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19681758380 Pending DE1758380B1 (en) | 1968-05-21 | 1968-05-21 | METHOD FOR MANUFACTURING ROLLED WIRE |
Country Status (10)
Country | Link |
---|---|
US (1) | US3584494A (en) |
JP (1) | JPS5124448B1 (en) |
AT (1) | AT294881B (en) |
BE (1) | BE728878A (en) |
DE (1) | DE1758380B1 (en) |
FR (1) | FR2008958A1 (en) |
GB (1) | GB1224306A (en) |
LU (1) | LU58151A1 (en) |
NL (1) | NL150695B (en) |
SE (1) | SE357981B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2717780A1 (en) * | 1977-04-21 | 1978-11-02 | Hamburger Stahlwerke Gmbh | METHOD FOR MANUFACTURING ROLLED WIRE |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3929517A (en) * | 1972-07-07 | 1975-12-30 | Kobe Steel Ltd | Process for producing a steel having a superb combination of high strength and substantial toughness |
GB1400872A (en) * | 1972-11-15 | 1975-07-16 | Bridon Ltd | Production of low alloy steel wire |
JPS5420931B2 (en) * | 1973-09-10 | 1979-07-26 | ||
DE2361330C2 (en) * | 1973-12-08 | 1983-11-24 | INA Wälzlager Schaeffler KG, 8522 Herzogenaurach | Process for the production of cylindrical rolling elements |
US3939015A (en) * | 1974-12-18 | 1976-02-17 | United States Steel Corporation | In-line heat treatment of hot-rolled rod |
US4401481A (en) * | 1980-01-10 | 1983-08-30 | Morgan Construction Company | Steel rod rolling process, product and apparatus |
GB8600533D0 (en) * | 1986-01-10 | 1986-02-19 | Bekaert Sa Nv | Manufacturing pearlitic steel wire |
JP2627373B2 (en) * | 1991-07-08 | 1997-07-02 | 金井 宏之 | High strength extra fine metal wire |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2756169A (en) * | 1950-10-19 | 1956-07-24 | John A Roebling S Sons Corp | Method of heat treating hot rolled steel rods |
US2994328A (en) * | 1956-07-20 | 1961-08-01 | Morgan Construction Co | Rod patenting |
US3011928A (en) * | 1960-01-18 | 1961-12-05 | Morgan Construction Co | Method for heat treating hot rolled steel rods |
US3320101A (en) * | 1963-05-24 | 1967-05-16 | Morgan Construction Co | Hot rolled steel rod |
DE1583986A1 (en) * | 1968-02-15 | 1970-09-10 | Huettenwerk Oberhausen Ag | Use of wire rod made of steel for the production of drawn wire, which at the same time has high flexural strength and high torsion values |
-
1968
- 1968-05-21 DE DE19681758380 patent/DE1758380B1/en active Pending
-
1969
- 1969-02-25 BE BE728878D patent/BE728878A/xx unknown
- 1969-02-27 AT AT199469A patent/AT294881B/en not_active IP Right Cessation
- 1969-03-04 FR FR6905803A patent/FR2008958A1/fr not_active Withdrawn
- 1969-03-06 LU LU58151D patent/LU58151A1/xx unknown
- 1969-03-21 SE SE04010/69A patent/SE357981B/xx unknown
- 1969-03-25 JP JP44022148A patent/JPS5124448B1/ja active Pending
- 1969-05-07 GB GB23326/69A patent/GB1224306A/en not_active Expired
- 1969-05-19 NL NL696907642A patent/NL150695B/en unknown
- 1969-05-20 US US826229A patent/US3584494A/en not_active Expired - Lifetime
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2756169A (en) * | 1950-10-19 | 1956-07-24 | John A Roebling S Sons Corp | Method of heat treating hot rolled steel rods |
US2994328A (en) * | 1956-07-20 | 1961-08-01 | Morgan Construction Co | Rod patenting |
US3011928A (en) * | 1960-01-18 | 1961-12-05 | Morgan Construction Co | Method for heat treating hot rolled steel rods |
US3320101A (en) * | 1963-05-24 | 1967-05-16 | Morgan Construction Co | Hot rolled steel rod |
DE1583986A1 (en) * | 1968-02-15 | 1970-09-10 | Huettenwerk Oberhausen Ag | Use of wire rod made of steel for the production of drawn wire, which at the same time has high flexural strength and high torsion values |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2717780A1 (en) * | 1977-04-21 | 1978-11-02 | Hamburger Stahlwerke Gmbh | METHOD FOR MANUFACTURING ROLLED WIRE |
Also Published As
Publication number | Publication date |
---|---|
US3584494A (en) | 1971-06-15 |
NL6907642A (en) | 1969-11-25 |
FR2008958A1 (en) | 1970-01-30 |
NL150695B (en) | 1976-09-15 |
GB1224306A (en) | 1971-03-10 |
AT294881B (en) | 1971-12-10 |
JPS5124448B1 (en) | 1976-07-24 |
BE728878A (en) | 1969-08-01 |
SE357981B (en) | 1973-07-16 |
LU58151A1 (en) | 1969-07-07 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
B1 | Publication of the examined application without previous publication of unexamined application |