EP1219366A2 - Verfahren zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl sowie eine Anlage und eine Vorrichtung hierfür - Google Patents
Verfahren zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl sowie eine Anlage und eine Vorrichtung hierfür Download PDFInfo
- Publication number
- EP1219366A2 EP1219366A2 EP01130843A EP01130843A EP1219366A2 EP 1219366 A2 EP1219366 A2 EP 1219366A2 EP 01130843 A EP01130843 A EP 01130843A EP 01130843 A EP01130843 A EP 01130843A EP 1219366 A2 EP1219366 A2 EP 1219366A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- thread
- threading
- bars
- profile
- rods
- 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.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H3/00—Making helical bodies or bodies having parts of helical shape
- B21H3/02—Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
- B21H5/00—Making gear wheels, racks, spline shafts or worms
-
- 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
Definitions
- the invention relates to a method for producing a Profiles in particular of a thread on steel rods and a system and a device therefor.
- the invention can be essentially in the manufacture all surface profiles and structures on bars and other especially hot rolled products with round Apply cross section. The following is for simplification only referred to the manufacture of threads without the Want to limit invention about this.
- the basic idea of the invention is a method for threading a surface of hot rolled Steel rods, in which the rods are heated Condition in which the material is still relatively easily deformable by a threading device be performed, as well as a plant for performing the method and a device for threading on rods to be made of steel. Resulting from this procedure considerable advantages, especially simplifications, compared to the previously known methods. Especially descaling processes and other procedural measures are eliminated, which were previously necessary before a thread e.g. by rolling or cutting into the surface of hot rolled Poles can be incorporated.
- the invention achieves the mentioned and further advantages by means of the methods, systems and devices for producing a profile, in particular a thread, specified in the claims.
- the subclaims each indicate advantageous developments of the inventions.
- the invention can be implemented in a large number of different inventive configurations, of which a selection is explained below with reference to the drawings.
- Blocks or slabs of steel serving as primary material the Quality freely chosen according to the respective application can be in a furnace 1 to a certain Brought temperature and from there a hot rolling mill 2 fed in by continuously compressing the in the Hot rolling mill 2 imported rolling stock from the raw material Bars can be formed with a desired diameter.
- Procedures have the rods at the exit 11 of the Device 4 for threading and at the entrance 12 of the Heat treatment device 5 at a temperature that the Austenitizing, annealing or normalizing temperature of the Material of the rods corresponds, so that cooling or Heating in a further processing step at the beginning of the Heat treatment is omitted, or this in whole or in part replaced, reducing the cost of performing the procedure can be reduced in a supplementary manner.
- Induction furnaces can also be used as the heat treatment device 5 can be used, which in a particularly reliable manner Scale formation and / or decarburization on the surface of the Prevent rods, so that a post-treatment in the any scale, etc., is removed and by the a previously inserted thread may be damaged could be waived.
- This embodiment of the invention also enables Process a considerable time saving compared to such Procedures in which the rolled bars before insertion of a thread must be cooled, which may also additional processing steps such as the removal of Tinder on the surface of the rods are required.
- the devices following the hot rolling mill 2 for performing downstream processing steps, such as making the thread or cutting the bars, for those possibly during the respective editing one of the feed speed of the hot rolling mill 2 different feed speed of the bars required is can be designed such that it is an adaptation to the feed rate specified by the hot rolling mill 2 enable. So the individual devices for example along the direction of advance of the bars be slidable, so that the respective Processing step necessary relative speed between the individual rods and the respective device is guaranteed. It is also conceivable to change the feed rate Warmwalz No 2 to the following Adjust processing steps.
- the respective devices are to be prevented trained accordingly or have corresponding Facilities that prevent this.
- the device 4 for threading or a component of this device with the thread forming tools be arranged all around the rods.
- a major advantage of the method according to the invention can be seen in particular in the fact that the material of the rods still soft or easily deformable when creating the thread is. As a result, the necessary forces are in opposition to known methods for threading, in which the bars have already cooled, much less. Also can because of the lower deformation work at the same time a longer thread can be made. Also reduced the wear of the threading device 4 used tools, so longer tool life can be achieved.
- the primary material is known Way through the hot rolling mill 2 and the fine rolling stand 3 performed before it is then on the cutter 6 is cut to the desired length and then cooled.
- Such an embodiment of the method enables Making the thread on a soft rod so that the resulting benefits will also be maintained.
- the rods are analogous to the procedure shown in Figure 2 following the hot rolling mill 2 downstream of the furnace 1 and the fine rolling stand 3 in a known manner to the desired length cut.
- the cut sticks are not stored for so long, until they are cold.
- the rods beforehand an oven 8 or inductive coils, fed to a holding trough 9 or a cooling trough 10, in which the rods are heated, on their existing Temperature can be maintained or cooled.
- the temperature at the inlet 14 of the device 4 selected for threading so that the temperature at the outlet 11 of the device 4 for threading or the temperature at the input 12 of the to be run if necessary Heat treatment device 5 of the austenitizing, annealing or normalization temperature of the respective material corresponds, so that cooling or heating in one further processing step at the beginning of any necessary Heat treatment is omitted or all or part of it replaced.
- FIG. 4 shows a schematic diagram, also in FIG. 5 in an embodiment shown in perspective view a system for carrying out the method according to FIG. 1, the individual devices in such a way are aligned that a rod to be machined this can run continuously.
- a hot rolling mill 2 downstream of the furnace 1 has arranged one after the other a Vor NU 20, an intermediate street 21 and a finishing train 22, which by several, in the present embodiment by six each Change of horizontally and vertically arranged pairs of rollers are formed.
- finishing street 22 that is e.g. arranged as a fine mill stand 3
- Rails 30 axially displaceable device 4 for threading connects, their rotatable thread rollers 44 also around the rod 24, more precisely around the axis the rod 24 are arranged circumferentially to prevent twisting to avoid the rod during thread production (cf. Figure 6) and still rolling on each other of the thread rolls 44 and the rod 24 to reach.
- the fine rolling stand 3 is in the embodiment shown here trained as a scaffold and points here four rolling stations combined in a stand, each with a roller 60 arranged above the rod, the Axis 61 runs horizontally, as well as two by 180 ° offset rollers 60, with all axes 61 run perpendicular to the axis of a bar to be machined.
- the peripheral surfaces 62 are engaged with the rod 24 brought (see Fig. 12).
- One is connected to the heat treatment device 5 known cutting device 6 in which cut the rod 24 becomes.
- One downstream of the cutting device 6 Collecting device 23 serves to receive the cut Rods.
- Procedures can fundamentally be the respective use cases be modified accordingly. So if necessary also a change in the order of the processing steps possible.
- Figures 6 and 7 each show a perspective view an embodiment of a device 4 for threading of Figure 4.
- Shaft shoulders 45 of the thread rollers 44 are in roller bearings 46 rotatably mounted in the holes 48 of two parallel in the Circular plates 47 spaced apart from one another are introduced.
- the plates 47 also have the through the common central axis of the thread rollers 44 formed Place the plates 47 through openings 50 for the in the Device 4 for threading entering and exiting Rods 24 on.
- the corresponding plate 47 is non-rotatable with the Tool cage 37 connected gear 32 via which the Tool cage 37 can be driven.
- the device has for rotatably receiving the tool cage 37 4 a tool cage holder for threading 38 on, the two end plates 39 and three between the End plates 39 arranged webs 40 is formed.
- the End plates 39 have openings 34 which are for receiving a bearing 33 are provided, by means of which the tool cage 37 rotatable about the plates 47 in the tool cage holder 38 is stored.
- the webs 40 belonging to the tool cage receptacle 38 point Internal supply lines, not shown here for coolant, by means of which the on the webs 40th arranged cooling water nozzles directed to the thread rollers 44 41 are supplied.
- the feed lines are via a central ring line 43, from which branch lines 51 to the individual webs 40 lead, supplied with the coolant.
- the ring line 43 is even through a manifold, not shown here supplied with the coolant.
- the tool cage 37 is driven by the motor 30, the drive pinion 31 is engaged with the gear 32.
- the device 4 for threading the thread rolls 44 can be both their own Axis as well as about the axis of the rod 24 to be machined rotate (see Figure 14).
- the tool cage receptacle 38 and the one on the tool cage receptacle 38 attached motor 30 are over on its underside attached guides 36, which on appropriately trained and extending parallel to the axis of the rod 24 Rails 35 are arranged, slidably mounted.
- the invention also allows the number to change the thread rollers 44. Possibly. can also be one or several threaded rollers 44 with their own rotary drive be provided, the rotary drive of the tool cage 37th replaced or supplemented.
- the bar 24 to be machined after another here not shown embodiment of the invention during the thread production can rotate about its own longitudinal axis, it may also be possible to do without the thread rolls 44 around the rod 24 to be machined in the device 4 to arrange for threading.
- a chain drive with, for example, is suitable as the drive PIV gear, a planetary gear or even a motor with Hollow shaft.
- the actual thread production takes place - in principle seen - as far as known, as the external thread (Negative) of the thread rollers 44 as a molding tool when rolling on one another the rod 24 and the thread rollers 44 progressively is pressed into the rod 24.
- the external thread (Negative) of the thread rollers 44 as a molding tool when rolling on one another the rod 24 and the thread rollers 44 progressively is pressed into the rod 24.
- the passage opening formed by the threaded rollers 44 smaller than the diameter of the rod 24 when entering the device 4 for threading (see FIG. 9 and 10).
- Figure 8 shows a side view of the device 4 for Threading of Figure 6.
- Figure 9 shows a front view of the device for threading of Figure 6.
- Figure 10 shows a sectional view along the section line A-A of Figure 8.
- Figure 12 shows a sectional view along the section line B-B of Figure 4.
- the axis of rotation 61 of the rollers 60 are 180 ° deart offset from each other that the peripheral surface 62 of the rollers 60 can be brought into engagement with the rod 24 are.
- the shape of the peripheral surface 62 of the rollers 60 is chosen so that that the rod 24 through the three rollers 60 essentially is completely embraced.
- FIG. 13 shows a colored representation of the device 4 for threading, parts for better understanding the tool cage receptacle 38 are not shown.
- Figure 14 shows a detailed view of the threading process with two threaded rollers 44, which in the drawing direction of the Rod 24 have an increasingly negative thread profile.
- the thread rollers 44 are of this type trained that a cut of the rod 24 takes place. In These are dependent on the number of thread rolls 44 arranged with an offset to each other. In the illustrated here Embodiment with two thread rollers 44 is the Offset half of the thread pitch with three thread rollers 44 the offset would be a third of the slope.
- the device 4 shown here for threading represents only one possible embodiment.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Forging (AREA)
- Metal Rolling (AREA)
Abstract
Description
Die Erfindung läßt sich in einer Vielzahl verschiedener erfinderischer Ausgestaltungen verwirklichen, von denen nachstehend eine Auswahl anhand der Zeichnungen erläutert wird.
Claims (10)
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl, bei dem die Stangen im erhitzten Zustand, in dem das Material leicht verformbar ist, durch eine Vorrichtung zum Gewindeherstellen geführt werden.
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes nach Anspruch 1, dadurch gekennzeichnet, dass die warmgewalzten Stangen im Anschluss an ihre Herstellung einer Schneidvorrichtung (6) zugeführt werden, in der die Stangen geschnitten werden, bevor sie durch die Vorrichtung zum Gewindeherstellen (4) geführt werden.
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes nach Anspruch 2, dadurch gekennzeichnet, dass die geschnittenen Stangen auf eine vorbestimmte Temperatur gebracht bzw. auf dieser gehalten werden, bevor sie durch die Vorrichtung zum Gewindeherstellen (4) geführt werden.
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die geschnittenen Stangen im Anschluss an die Schneidvorrichtung (6) in einer Vorrichtung zum Oberflächenbehandeln (7) nachbearbeitet werden.
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die geschnittenen Stangen nach dem Durchlaufen der Vorrichtung zum Gewindeherstellen (4) einer Wärmebehandlungsvorrichtung (5) zugeführt werden.
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl, bei dem die Stangen im Anschluss an einen Warmwalzprozessin einer Schneidvorrichtung (6) geschnitten werden und danach erkalten,dann auf eine vorbestimmte Temperatur erhitzt unddanach einer Vorrichtung zum Gewindeherstellen (4) zugeführt
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl, bei dem die Stangen im Anschluss an einen Warmwalzprozessin einer Schneidvorrichtung (6) geschnitten werden und danach erkalten,anschließend in einer Vorrichtung zum Oberflächenbehandeln (7) nachbearbeitet,dann auf eine vorbestimmte Temperatur erhitzt unddanach einer Vorrichtung zum Gewindeherstellen (4) zugeführt
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl, bei dem die Stangen direkt im Anschluss an einen Warmwalzprozessin einer Schneidvorrichtung (6) geschnitten,unmittelbar danach auf eine vorbestimmte Temperatur erhitzt oder abgekühlt oder auf einer vorbestimmten Temperatur gehalten undanschließend einer Vorrichtung zum Gewindeherstellen (4) zugeführt
- Verfahren zum Herstellen eines Profils insbesondere eines Gewindes nach einem oder mehreren Ansprüche 6 bis 8, dadurch gekennzeichnet, dass die Stangen nach dem Durchlaufen der Vorrichtung zum Gewindeherstellen (4) einer Wärmebehandlungsvorrichtung (5) zugeführt werden.
- Anlage zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl, bei der die Stangen im erhitzten Zustand, in dem das Material relativ leicht verformbar ist, durch eine Vorrichtung zum Gewindeherstellen (4) geführt werden.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10065061 | 2000-12-27 | ||
DE10065061 | 2000-12-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1219366A2 true EP1219366A2 (de) | 2002-07-03 |
EP1219366A3 EP1219366A3 (de) | 2003-11-19 |
Family
ID=7669018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01130843A Withdrawn EP1219366A3 (de) | 2000-12-27 | 2001-12-27 | Verfahren zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl sowie eine Anlage und eine Vorrichtung hierfür |
Country Status (1)
Country | Link |
---|---|
EP (1) | EP1219366A3 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140139352A1 (en) * | 2012-11-21 | 2014-05-22 | Veyance Technologies, Inc. | Frequency hopping for smart air springs |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1905704U (de) * | 1964-04-30 | 1964-12-03 | Maximilianshuette Eisenwerk | Als betonbewehrung dienender spannstahl. |
GB1242014A (en) * | 1968-06-21 | 1971-08-11 | Brueninghaus Gmbh Stahlwerke | Method and apparatus for the production of conical metal rods |
US3914973A (en) * | 1973-07-28 | 1975-10-28 | Fried Krupp Huttenwerke Ag Gfm | Method and apparatus for the preparation of round stock in strand form from steel or other metallic materials by hot forming |
DE3434226A1 (de) * | 1984-09-18 | 1986-03-27 | Wolfgang Dipl.-Phys. Dr.-Ing. 4800 Bielefeld Lindemann | Verfahren zum spanlosen bearbeiten, insbesondere verformen, stangenfoermigen gutes, wie wellen, draht o.dgl. und aggregat zur ausuebung des verfahrens |
JPS6376816A (ja) * | 1986-09-18 | 1988-04-07 | High Frequency Heattreat Co Ltd | 高強度太径異形鋼棒の製造方法 |
JPH02204555A (ja) * | 1989-02-02 | 1990-08-14 | Kurosawa Kensetsu Kk | ねじ付き防腐被覆pc鋼棒及びその製造方法 |
US4953379A (en) * | 1987-10-31 | 1990-09-04 | Dyckerhoff & Widmann Aktiengesellschaft | Hot-rolled steel bar with helically extending ribs, method of and apparatus for producing the steel bar |
DE4201746A1 (de) * | 1992-01-23 | 1993-07-29 | Peri Gmbh | Verfahren zum herstellen von vertiefungen, z. b. gewinden |
GB2289231A (en) * | 1994-05-02 | 1995-11-15 | Neturen Co Ltd | High-adhesion/high-strength deformed steel bar and method for manufacturing the same |
WO2001068287A1 (en) * | 2000-03-15 | 2001-09-20 | Gray, Evelyn, Frances | Process for forming a threaded member |
-
2001
- 2001-12-27 EP EP01130843A patent/EP1219366A3/de not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1905704U (de) * | 1964-04-30 | 1964-12-03 | Maximilianshuette Eisenwerk | Als betonbewehrung dienender spannstahl. |
GB1242014A (en) * | 1968-06-21 | 1971-08-11 | Brueninghaus Gmbh Stahlwerke | Method and apparatus for the production of conical metal rods |
US3914973A (en) * | 1973-07-28 | 1975-10-28 | Fried Krupp Huttenwerke Ag Gfm | Method and apparatus for the preparation of round stock in strand form from steel or other metallic materials by hot forming |
DE3434226A1 (de) * | 1984-09-18 | 1986-03-27 | Wolfgang Dipl.-Phys. Dr.-Ing. 4800 Bielefeld Lindemann | Verfahren zum spanlosen bearbeiten, insbesondere verformen, stangenfoermigen gutes, wie wellen, draht o.dgl. und aggregat zur ausuebung des verfahrens |
JPS6376816A (ja) * | 1986-09-18 | 1988-04-07 | High Frequency Heattreat Co Ltd | 高強度太径異形鋼棒の製造方法 |
US4953379A (en) * | 1987-10-31 | 1990-09-04 | Dyckerhoff & Widmann Aktiengesellschaft | Hot-rolled steel bar with helically extending ribs, method of and apparatus for producing the steel bar |
JPH02204555A (ja) * | 1989-02-02 | 1990-08-14 | Kurosawa Kensetsu Kk | ねじ付き防腐被覆pc鋼棒及びその製造方法 |
DE4201746A1 (de) * | 1992-01-23 | 1993-07-29 | Peri Gmbh | Verfahren zum herstellen von vertiefungen, z. b. gewinden |
GB2289231A (en) * | 1994-05-02 | 1995-11-15 | Neturen Co Ltd | High-adhesion/high-strength deformed steel bar and method for manufacturing the same |
WO2001068287A1 (en) * | 2000-03-15 | 2001-09-20 | Gray, Evelyn, Frances | Process for forming a threaded member |
Non-Patent Citations (2)
Title |
---|
PATENT ABSTRACTS OF JAPAN vol. 012, no. 301 (C-521), 16. August 1988 (1988-08-16) & JP 63 076816 A (HIGH FREQUENCY HEATTREAT CO LTD), 7. April 1988 (1988-04-07) * |
PATENT ABSTRACTS OF JAPAN vol. 014, no. 499 (M-1042), 31. Oktober 1990 (1990-10-31) & JP 02 204555 A (KUROSAWA KENSETSU KK;OTHERS: 02), 14. August 1990 (1990-08-14) * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140139352A1 (en) * | 2012-11-21 | 2014-05-22 | Veyance Technologies, Inc. | Frequency hopping for smart air springs |
US9349281B2 (en) * | 2012-11-21 | 2016-05-24 | Stemco Kaiser Incorporated | Frequency hopping for smart air springs |
Also Published As
Publication number | Publication date |
---|---|
EP1219366A3 (de) | 2003-11-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP1001859B1 (de) | Verfahren zur herstellung von wälzlagerringen aus stahl | |
DE4415091C1 (de) | Verfahren und Vorrichtung zum kontinuierlichen, spanlosen profilierenden Zerteilen von rohrförmigen Werkstücken in einzelne, untereinander gleiche Ringe | |
WO1997036699A1 (de) | Verfahren und anlage zur herstellung von warmgewalztem stahlband | |
DE102005035794A1 (de) | Vorrichtung zum Herstellen metallischer Bauteile, insbesondere von Zylinderschneckenprofilen, durch rotierende spanende und rollierende Bearbeitung von zylindrischen Rohteilen | |
DE3149647C2 (de) | ||
DE2054528C3 (de) | Vorrichtung zum Härten von Rohren aus der Walzhitze | |
DE102005025627B3 (de) | Verfahren und Vorrichtung zum Herstellen von Sägezahn- und Ganzstahlgarnituren sowie Sägezahndraht | |
DE102013104806A1 (de) | Bandofen | |
AT408420B (de) | Anlage zur herstellung von warmgewalztem stahlband | |
CH669549A5 (de) | ||
DE69007033T2 (de) | Warmwalzverfahren für nahtlose Rohre mit vorausgehender Verringerung des Durchmessers von Halbzeug. | |
DE2818626A1 (de) | Verfahren und maschine zur herstellung von langen betonbohrern mit schraubenfoermigen laengsnuten auf einem teil ihrer laenge | |
EP0560093B1 (de) | Feinstahl-/Drahtstrasse | |
EP1463591B1 (de) | Verfahren und walzanlage zum herstellen von draht, stäben oder nahtlosen rohren | |
EP0808672B1 (de) | Verfahren und Anlage zur Herstellung von Edelstahl- oder Kohlenstoffstahlblech aus durch Strangguss erzeugten Dünnbrammen | |
EP1219366A2 (de) | Verfahren zum Herstellen eines Profils insbesondere eines Gewindes an Stangen aus Stahl sowie eine Anlage und eine Vorrichtung hierfür | |
DE10140307C1 (de) | Verfahren und Vorrichtung zur Herstellung von Stahlprofilstäben für Linearführungselemente | |
DE10261632B4 (de) | Verfahren und Walzanlage zum Herstellen von Draht, Stäben oder nahtlosen Rohren | |
EP0683001A1 (de) | Verfahren und Vorrichtung zum spanenden Bearbeiten von Stangen, Rohren oder Rohrluppen | |
WO2015132109A1 (de) | Endkonturnahes warmwalzen von führungsschienen | |
DE19621536C2 (de) | Verfahren und Vorrichtung zur Herstellung von Stahlprofilen | |
DE3536046C2 (de) | ||
AT514504B1 (de) | Zahnstange warm umgeformt mit Gewindenut | |
DE742989C (de) | Verfahren zum Herstellen von Walzgut aus einem aus einer Durchlauf-Giessform fortlaufend austretenden Gussstrang | |
DE1452456A1 (de) | Verfahren und Einrichtung zur Herstellung von duennen Metallbaendern |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI |
|
PUAL | Search report despatched |
Free format text: ORIGINAL CODE: 0009013 |
|
AK | Designated contracting states |
Kind code of ref document: A3 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR |
|
AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
|
AKX | Designation fees paid | ||
REG | Reference to a national code |
Ref country code: DE Ref legal event code: 8566 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
18D | Application deemed to be withdrawn |
Effective date: 20040521 |