EP1201329A2 - Verfahren und Rollenrichtmaschine zum Richten von Schienen - Google Patents
Verfahren und Rollenrichtmaschine zum Richten von Schienen Download PDFInfo
- Publication number
- EP1201329A2 EP1201329A2 EP01125208A EP01125208A EP1201329A2 EP 1201329 A2 EP1201329 A2 EP 1201329A2 EP 01125208 A EP01125208 A EP 01125208A EP 01125208 A EP01125208 A EP 01125208A EP 1201329 A2 EP1201329 A2 EP 1201329A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- straightening
- rail
- rollers
- roller
- straightening rollers
- 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.)
- Granted
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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
- B21D3/00—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts
- B21D3/02—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers
- B21D3/05—Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts by rollers arranged on axes rectangular to the path of the work
Definitions
- the invention relates to a method for straightening Rails.
- Rails made by hot rolling or another Thermoforming processes are usually produced based on their temperature at the end of hot forming cooled to ambient temperature on a cooling bed. Because of the different ratios of mass to Surface on the rail head and on the rail base arise thereby long-wave bends. In addition, you can through the deformation process itself and the subsequent ones Short-wave transport processes Straightness deviations are caused. To similar ones Shape errors occur with rails coming from the Deformation heat can be cooled or accelerated be subjected to additional heat treatment.
- DE-A 36 05 648 is a method and a device for straightening railroad tracks remove.
- the tenor here is that the rail during as they pass through the machine changing bends are imprinted in the so-called directional triangles, and so that the rail when straightening one overall curved trajectory with the center of curvature takes place below the rail foot.
- the rail runs through the straightening machine from one to the other Spout in an arc over the rail foot - overlaid of the mutual bends in the individual Directional triangles.
- EN 13 674-1 "Rail superstructure, symmetrical wide foot rails from 46 kg / m", draft September 1999. Corresponding values can be assumed for the rail head. At the same time, EN 13 674-1 limits the maximum vertical flatness deviation over a reference length of three meters to a maximum of 0.3 mm.
- Optimal straight Rails are therefore a prerequisite for one high driving comfort and a low dynamic load of the rail vehicles and the track superstructure.
- the object of the invention is based on the above-described prior art To create processes for roller straightening, which without additional facilities and means of judging Rails without the risk of high Residual tension enables. In addition, a Straightening machine with simple means be trained to do the necessary technical requirements are sufficient.
- a Roller straightening machine for straightening rails including several groups on the one hand on the rail foot and on the other hand straightening rolls on the rail head, by which can be specified by the individual in the group
- Direction of the rail are adjustable, such that in Infeed area of the straightening machine, formed by the first three straightening roles of the groups, at least one Judging role versus the remaining judging roles of other group with a higher degree of delivery so adjustable is that at the last straightening roll of the infeed area a maximum value of the bending deformation can be achieved.
- those roles that in Followed by the straightening role on which the maximum value of the bending deformation is reached from be run through the rail so that the Amplitude of bending deformation on each of these rolls is degraded degressively with the greatest possible degression. This can lead to the development of residual tensile stresses can be avoided particularly effectively. It is cheap in this context furthermore when the roles that the one following the role with the highest Bending deformation positioned rollers are passed through, so that the rails in the Transition area of the elastic-plastic alternate bend be brought into the straight state.
- the level of residual stresses across the cross-section the directional rail can be achieved in that starting from an initial setting the employment of rolls of the straightening machine positioned in the outlet area about the ratio of the bending curvatures to the relevant roles is varied from about 0.7 to 1.3.
- the inventive method can be in excellently on conventionally constructed Perform straightening machines where the straightening rollers of the first group offset in the direction of conveyance of the rail the roles of the second group are arranged.
- the spacing of the straightening rolls in a plane is generally called Called division. In practice it is common Rail straightening machines with divisions from 1400 - 1800 mm interpreted.
- the division of roles on one Straightening machine same, different size or variable be adjustable.
- the rollers can be in the machine horizontally one above the other or vertically next to one another be arranged.
- Conventional straighteners are adjustable Top rollers or equipped with adjustable castors.
- the alternating ones necessary for the straightening process Bends are in the so-called directional triangles achieved.
- known straighteners in question standing type form two straightening roles of the one Group with a standard role of the other group such a triangle.
- the Straightening roll at which the highest bending deformation is achieved will be the last role of a Directional triangle is.
- the directional triangle in question to which the directional role is assigned at which the highest bending deformation is reached in the lead-in area by the rail through the directional path is arranged. To this Way, the gradual degradation of the highest Bending deformation even on machines with a low Number of rolls done safely.
- straightened machine R in a conventional manner straightened machine R is at least seven Straightening rolls 1 - 7 equipped.
- the odd-numbered straightening rolls 1, 3, 5 and 7 of the Straightener R are the rail foot F of the rail S assigned while the even-numbered towards the Rail (S) adjustable straightening rollers 2,4,6 on the Rail head K act.
- the K assigned straightening roles 2,4,6 are in Direction of conveyance P of the rail S offset in this way the straightening rollers 1,3,5,7 assigned to the rail foot F. arranged that each of the straightening rollers 2,4,6 in With respect to the horizontal in the middle between one Pair of straightening rollers 1,3,5 and 7 is arranged.
- the straightening rollers 1, 2 and 3 form the Cornerstones of a first directional triangle RD1.
- the first three straightening rolls 1 - 3 are the infeed area of the Rail S defined.
- a second triangle RD2 is shown in reverse arrangement by straightening rollers 2, 3 and 4 formed a third right triangle RD3 through the Straightening rolls 3, 4, 5 etc.
- the straightening triangles are RD1 to RD3 in Fig. 1 indicated by dashed lines.
- a triangle RD1, RD2, RD3, ... associated straightening rollers 1-7 the rail S in alternately bent.
- the straightening roller 2 assigned to the rail head K is so in the direction of the rail foot F, that the rail S in the inlet area (1 - 3) at Passing the straightening roller 3 a maximum bending deformation experiences.
- Straightening roll 4 becomes the steady
- the curvature of the rail S is gradually reduced, in such a way that the employment of the further straightening rolls 4 and 6 turns out to be less than that of straightening roll 2 in the infeed area of the leveler R.
- the gradation is chosen so that the last one is still plastic significant bending deformation on the rail foot F assigned straightening roll 5 takes place.
- Example 1A relates to rails with normal or small differences in curvature after cooling, while Example 1B applies to rails with larger differences in curvature: straightening roller assignment Embossed curvature k * / v of the rail Example 1A
- Example 1B 1 rail 0 0 2 railhead 3.6 4.0 3 rail -3.7 -4.3 4 railhead 3.1 3.9 5 rail -1.9 -2.6 6 railhead 0.7 1.1 7 rail 0 0
- a curvature is positive defined when the bend on a straightening roll over the Rail head K takes place, i.e. on reels 2, 4 and 6.
- the curvatures are defined as negative if the Bending takes place over the rail foot F, i.e. to the Straightening rolls 3 and 5.
- the straightening machine shown in Fig. 2 is nine Straightening rollers 11 - 19 equipped, of which in the The difference for example according to FIG. 1 is not that Rail head K assigned even-numbered straightening rollers 12, 14, 16, 18, but those assigned to the rail foot F. odd straightening rolls 11,13,15,17,19 in the direction of Rail S are installed and deliverable.
- the larger number of Straightening rollers 11-19 has the advantage that the means suitable employment of straightening rollers 11, 13 and 15 maximum set curvature of the rail S up to Straightening roll 15 very quickly to a low one Curvature value can be returned, so that at the Straightening rolls 16, 17 and 18 only with a small one Curvature amplitude must be directed.
- Table 2 gives an example of the bending curvatures k * / v imprinted on the individual straightening rollers when straightening a rail S in the straightening machine shown in FIG. 2.
- Table 2 is as positively defines a curvature when the bend is on a roll takes place over the rail head K, i.e. to the Rollers 12, 14, 16 and 18.
- the curvatures are negative defined when the bend over the rail foot F takes place, i.e. on the rollers 13, 15 and 17. It can be seen that in this example, too, that in the inlet area 11-13 intended straightening roller 13 the highest bending curvature having.
- the influencing factors are the technical data the straightening machine R (pitch; diameter, number, type the employment of the judging roles; Deformation of the Straightener R as a result of the straightening process).
- straightening the rails S can also be carried out on straightening machines with more than nine roles are equipped. It turns out that on such machines further lower the Residual stresses can be achieved.
- FIG. 3 shows a diagram which is shown in comparative comparison the plastic Bending work according to the prior art with the Subject of the invention explained.
- Figure 3 relates to a roller straightener with seven straightening rollers, like her is shown for example in Figure 1. Above the The number of straightening rolls is the plastic bending work applied. With ⁇ the bending work is in accordance with the Technology and with ⁇ is the bending work according to Subject of the invention meant. It can be seen that the Bending work on the straightening roll in the subject of the invention 3 is highest and compared to the following straightening roles the other curve decreases significantly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
- Wire Processing (AREA)
- Machines For Laying And Maintaining Railways (AREA)
- Metal Rolling (AREA)
Abstract
Description
- bei dem die Schienen eine Rollenrichtmaschine durchlaufen, welche eine Gruppe den Schienenfuß berührender Richtrollen und eine Gruppe den Schienenkopf berührender Richtrollen aufweist, wobei mindestens die Richtrollen einer dieser Gruppen in Richtung der Schiene anstellbar sind,
- bei dem die Anstellung der anstellbaren Richtrollen so gewählt wird, daß im Einlaufbereich der Richtmaschine, gebildet durch die ersten drei Richtrollen beider Gruppen, an einer Richtrolle ein, verglichen mit den an den nachfolgenden Richtrollen erzielten Verformungen, maximaler Wert der Biegeverformung erreicht wird, und
- bei dem diejenigen Richtrollen, die im Anschluß an die Richtrolle von der Schiene durchlaufen werden, so angestellt werden, daß diese maximale Biegeverformung an den weiteren Richtrollen um jeweils einen vorgebbaren Betrag abgebaut wird.
- Fig. 1
- einen Ausschnitt einer liegenden Richtmaschine in einer Draufsicht;
- Fig. 2
- einen Ausschnitt einer stehenden Richtmaschine in seitlicher Ansicht.
- Fig. 3
- Vergleichende Gegenüberstellung der plastischen Biegearbeit gemäß Stand der Technik mit dem Erfindungsgegenstand.
Richtrolle | Zuordnung | Aufgeprägte bezogene Biegekrümmung k * / v der Schiene | |
Beispiel 1A | Beispiel 1B | ||
1 | Schienenfuß | 0 | 0 |
2 | Schienenkopf | 3,6 | 4,0 |
3 | Schienenfuß | -3,7 | -4,3 |
4 | Schienenkopf | 3,1 | 3,9 |
5 | Schienenfuß | -1,9 | -2,6 |
6 | Schienenkopf | 0,7 | 1,1 |
7 | Schienenfuß | 0 | 0 |
Richtrolle | Zuordnung | Aufgeprägte bezogene Biegekrümmung k * / v der Schiene |
11 | Schienenfuß | 0 |
12 | Schienenkopf | 2,34 |
13 | Schienenfuß | -4,30 |
14 | Schienenkopf | 3,65 |
15 | Schienenfuß | -1,68 |
16 | Schienenkopf | 1,0 (1,2) |
17 | Schienenfuß | -1,2 (-1,1) |
18 | Schienenkopf | 0,7 |
19 | Schienenfuß | 0 |
- 1 - 7
- Richtrollen
- 11 - 19
- Richtrollen
- F
- Schienenfuß der Schiene S
- K
- Schienenkopf der Schiene S
- P
- Förderrichtung der Schiene S
- R
- Richtmaschine
- RD1,RD2,RD3
- Richtdreiecke
- S
- Schiene
Claims (12)
- Verfahren zum Richten von Schienen (S),bei dem die Schienen (S) eine Rollenrichtmaschine (R) durchlaufen, welche eine Gruppe den Schienenfuß (F) berührender Richtrollen (1,3,5,7;11,13,15,17,19) und eine Gruppe den Schienenkopf (K) berührender Richtrollen (2,4,6;12,14,16,18) aufweist, wobei mindestens die Richtrollen (2,4,6; 11,13,15,17,19) einer dieser Gruppen in Richtung der Schiene (S) anstellbar sind,bei dem die Anstellung der anstellbaren Richtrollen (2,4,6;11,13,15,17,19) so gewählt wird, daß im Einlaufbereich der Richtmaschine, gebildet durch die ersten drei Richtrollen (1,2,3; 11,12,13) beider Gruppen, an einer Richtrolle (3;13) ein, verglichen mit den an den nachfolgenden Richtrollen (4,5,6,7; 14 - 19) erzielten Verformungen, maximaler Wert der Biegeverformung erreicht wird, undbei dem diejenigen Richtrollen (4,6; 15,17,19), die im Anschluß an die Richtrolle (3;13) von der Schiene (S) durchlaufen werden, so angestellt werden, daß die maximale Biegeverformung an den weiteren Richtrollen (4 - 7; 14- 19) um jeweils einen vorgebbaren Betrag abgebaut wird.
- Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß diejenigen Richtrollen (4,6; 15,17,19), die im Anschluß an den Einlaufbereich (1-3; 11- 13), respektive die Richtrolle (3; 13), von der Schiene (S) durchlaufen werden, so angestellt werden, daß die Amplitude der Biegeverformung an jeder dieser folgenden Richtrollen (4 - 7; 14 - 19) degressiv mit möglichst hoher Degression abgebaut wird.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß daß diejenigen Richtrollen (4,6; 15,17,19), die im Anschluß an den Einlaufbereich (1 - 3; 11 - 13), respektive die Richtrolle (3,13), von der Schiene (S) durchlaufen werden, so angestellt werden, daß die Schiene (S) im Übergangsbereich der elastisch-plastischen Wechselbiegung in den geraden Zustand überführt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß ausgehend von einer Anfangseinstellung die Anstellung der einen Auslaufbereich bildenden Richtrollen (4 - 7;14 - 19) über das Verhältnis der Biegekrümmungen an den betreffenden Richtrollen (5,7 bzw. 15,17,19) von etwa 0,7 bis 1,3 variiert wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Richtrolle (3), an welcher die maximale Biegeverformung erreicht wird, dem Schienenfuß (F) zugeordnet wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß diejenige Richtrolle, an der die letzte Verformung der Schiene (S) beim stufenweisen Abbau der maximalen Biegeverformung erreicht wird, dem Schienenkopf (K) zugeordnet wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Richtrollen (1,3,5,7; 11,13,15,17,19) der einen Gruppe, in Förderrichtung (P) der Schiene (S) gesehen, versetzt zu den Richtrollen (2,4,6; 12,14,16,18) der anderen Gruppe angeordnet werden.
- Rollenrichtmaschine zum Richten von Schienen, beinhaltend mehrere Gruppen von einerseits am Schienenfuß (F) und andererseits am Schienenkopf (K) anliegenden Richtrollen (1,2,3,4,5,6,7; 11,12,13,14,15,15,17,18,19), von denen vorgebbare Richtrollen (2,4,6; 11,13,15,17,19) einzelner der Gruppen in Richtung der Schiene (S) anstellbar sind, dergestalt, daß im Einlaufbereich der Richtmaschine, gebildet durch die ersten drei Richtrollen (1,2,3; 11,12,13) der Gruppen, mindestens eine Richtrolle (2,13) gegenüber den verbleibenden Richtrollen (4,6; 15,17,19) der anderen Gruppe mit größerem Zustellungsgrad in Richtung der Schiene (S) so anstellbar ist, daß an der letzten Richtrolle (3,13) des Einlaufbereiches ein maximaler Wert der Biegeverformung erreichbar ist.
- Rollenrichtmaschine nach Anspruch 8, dadurch gekennzeichnet, daß die anstellbaren weiteren Richtrollen (4,6; 15,17,19) dergestalt in Richtung der Schiene (S) angestellt sind, daß die Amplitude der Biegeverformung an diesen weiteren Richtrollen (4 - 7; 14 - 19) degressiv, insbesondere mit möglichst hoher Degression abbaubar ist, wobei die Schiene (S) im Übergangsbereich der elastisch-plastischen Wechselbiegung in den geraden Zustand überführbar ist.
- Rollenrichtmaschine nach Anspruch 8 oder 9, dadurch gekennzeichnet, daß, jeweils zwei Richtrollen (1,3,5,7; 11,13,15,17,19) der einen Gruppe mit einer Richtrolle (2,4,6; 12,14,16,18) der jeweils anderen Gruppe ein Richtdreieck (RD1, RD2, RD3) bilden, und daß die Richtrolle (3;13), an der die höchste Biegeverformung erreicht wird, die zuletzt passierte Richtrolle (3;13) des Einlaufbereiches (1,2,3; 11,12,13) ist.
- Rollenrichtmaschine nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Richtmaschine (R) mindestens sieben Richtrollen (1 - 7), vorzugsweise neun Richtrollen (11 -19), umfaßt.
- Rollenrichtmaschine nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die jeweils ungradzahlingen Richtrollen (1,3,5,7; 11,13,15,17,19) dem Schienenfuß (F) zugeordnet sind.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10053933 | 2000-10-31 | ||
DE10053933A DE10053933B4 (de) | 2000-10-31 | 2000-10-31 | Verfahren zum Richten einer Schiene |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1201329A2 true EP1201329A2 (de) | 2002-05-02 |
EP1201329A3 EP1201329A3 (de) | 2003-03-12 |
EP1201329B1 EP1201329B1 (de) | 2006-04-19 |
Family
ID=7661656
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01125208A Revoked EP1201329B1 (de) | 2000-10-31 | 2001-10-24 | Verfahren und Rollenrichtmaschine zum Richten von Schienen |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1201329B1 (de) |
AT (1) | ATE323561T1 (de) |
CZ (1) | CZ298418B6 (de) |
DE (2) | DE10053933B4 (de) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105436248A (zh) * | 2015-11-27 | 2016-03-30 | 攀钢集团攀枝花钢钒有限公司 | 用于外延工序矫直钢轨端部的外延结构 |
CN109500298A (zh) * | 2018-12-07 | 2019-03-22 | 中冶建筑研究总院有限公司 | 一种实验室用高强度圆钢矫直机及矫直方法 |
CN116910944A (zh) * | 2023-09-13 | 2023-10-20 | 中基科技(武汉)有限公司 | 船用型材矫直机的工艺参数确定方法、装置及电子设备 |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2010004037A2 (de) | 2008-07-10 | 2010-01-14 | Arku Maschinenbau Gmbh | Verfahren zum richten von teilen in einer walzenrichtmaschine |
DE102008059108A1 (de) * | 2008-10-16 | 2010-04-22 | Sms Meer Gmbh | Verfahren und Vorrichtung zum Richten von Rohren auf einem Expander |
CN112453116A (zh) * | 2020-11-12 | 2021-03-09 | 安阳钢铁股份有限公司 | 一种槽钢高温矫直的方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2416148A1 (de) * | 1973-04-04 | 1974-10-17 | Nippon Steel Corp | Rollenrichtmaschine fuer stahlprofile |
DE3605648A1 (de) * | 1986-02-21 | 1987-08-27 | Krupp Stahl Ag | Verfahren und vorrichtung zum richten einer eisenbahnschiene in einer rollenrichtmaschine |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE755207A (fr) * | 1969-08-23 | 1971-02-01 | Arbed S A Acieries Reunies De | Procede pour le refroidissement de rails et rails ainsi obtenus |
FR2521883B1 (fr) * | 1982-02-19 | 1985-08-30 | Sacilor | Procede de dressage d'un rail de chemin de fer et rail de chemin de fer dresse |
DE3501522C1 (de) * | 1985-01-18 | 1986-04-03 | Krupp Stahl Ag, 4630 Bochum | Verfahren zur Herstellung eigenspannungsarmer Stahlschienen mittels Rollenrichten |
DE4137459C2 (de) * | 1991-11-14 | 1996-05-09 | Guericke Wilhelm Prof Dr Ing H | Verfahren und Richtrolle zum Rollenrichten |
DE19720061C2 (de) * | 1997-05-13 | 1999-06-02 | Thyssen Stahl Ag | Verfahren zur Vorbereitung von Schienen für gelaschte Verbindungen |
RU2120480C1 (ru) * | 1997-11-06 | 1998-10-20 | Открытое акционерное общество "Кузнецкий металлургический комбинат" | Способ обработки рельсов |
-
2000
- 2000-10-31 DE DE10053933A patent/DE10053933B4/de not_active Expired - Fee Related
-
2001
- 2001-10-24 DE DE50109543T patent/DE50109543D1/de not_active Revoked
- 2001-10-24 AT AT01125208T patent/ATE323561T1/de not_active IP Right Cessation
- 2001-10-24 EP EP01125208A patent/EP1201329B1/de not_active Revoked
- 2001-10-30 CZ CZ20013896A patent/CZ298418B6/cs not_active IP Right Cessation
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2416148A1 (de) * | 1973-04-04 | 1974-10-17 | Nippon Steel Corp | Rollenrichtmaschine fuer stahlprofile |
DE3605648A1 (de) * | 1986-02-21 | 1987-08-27 | Krupp Stahl Ag | Verfahren und vorrichtung zum richten einer eisenbahnschiene in einer rollenrichtmaschine |
Non-Patent Citations (1)
Title |
---|
DATABASE WPI Section Ch, Week 200011 Derwent Publications Ltd., London, GB; Class M21, AN 2000-125497 XP002227168 -& RU 2 120 480 C (URALS METALS INST STOCK CO), 20. Oktober 1998 (1998-10-20) * |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105436248A (zh) * | 2015-11-27 | 2016-03-30 | 攀钢集团攀枝花钢钒有限公司 | 用于外延工序矫直钢轨端部的外延结构 |
CN105436248B (zh) * | 2015-11-27 | 2018-07-27 | 攀钢集团攀枝花钢钒有限公司 | 用于外延工序矫直钢轨端部的外延结构 |
CN109500298A (zh) * | 2018-12-07 | 2019-03-22 | 中冶建筑研究总院有限公司 | 一种实验室用高强度圆钢矫直机及矫直方法 |
CN109500298B (zh) * | 2018-12-07 | 2023-05-23 | 中冶建筑研究总院有限公司 | 一种实验室用高强度圆钢矫直机及矫直方法 |
CN116910944A (zh) * | 2023-09-13 | 2023-10-20 | 中基科技(武汉)有限公司 | 船用型材矫直机的工艺参数确定方法、装置及电子设备 |
CN116910944B (zh) * | 2023-09-13 | 2023-12-26 | 中基科技(武汉)有限公司 | 船用型材矫直机的工艺参数确定方法、装置及电子设备 |
Also Published As
Publication number | Publication date |
---|---|
DE50109543D1 (de) | 2006-05-24 |
EP1201329B1 (de) | 2006-04-19 |
DE10053933B4 (de) | 2005-01-27 |
CZ298418B6 (cs) | 2007-09-26 |
DE10053933A1 (de) | 2002-05-16 |
ATE323561T1 (de) | 2006-05-15 |
CZ20013896A3 (cs) | 2002-07-17 |
EP1201329A3 (de) | 2003-03-12 |
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