EP0265757B1 - Procédé et arrangement pour laminer des profilés de coulée continue - Google Patents
Procédé et arrangement pour laminer des profilés de coulée continue Download PDFInfo
- Publication number
- EP0265757B1 EP0265757B1 EP87114862A EP87114862A EP0265757B1 EP 0265757 B1 EP0265757 B1 EP 0265757B1 EP 87114862 A EP87114862 A EP 87114862A EP 87114862 A EP87114862 A EP 87114862A EP 0265757 B1 EP0265757 B1 EP 0265757B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- stand
- profile
- universal
- web
- flange
- 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 - Lifetime
Links
- 238000005096 rolling process Methods 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims description 3
- 238000009749 continuous casting Methods 0.000 claims description 16
- 238000007688 edging Methods 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims 1
- 238000011144 upstream manufacturing Methods 0.000 abstract description 8
- 229910000831 Steel Inorganic materials 0.000 abstract description 4
- 230000002441 reversible effect Effects 0.000 abstract description 4
- 239000010959 steel Substances 0.000 abstract description 4
- 230000006835 compression Effects 0.000 description 13
- 238000007906 compression Methods 0.000 description 13
- 230000002787 reinforcement Effects 0.000 description 4
- 210000000988 bone and bone Anatomy 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 101150006573 PAN1 gene Proteins 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Images
Classifications
-
- 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
- B21B1/46—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 metal immediately subsequent to continuous casting
-
- 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
- B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/14—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 structural sections, i.e. work of special cross-section, e.g. angle steel in a non-continuous process, i.e. at least one reversing stand
-
- 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
- B21B1/46—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 metal immediately subsequent to continuous casting
- B21B1/466—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 metal immediately subsequent to continuous casting in a non-continuous process, i.e. the cast being cut before rolling
-
- 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
- B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/088—H- or I-sections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B13/001—Convertible or tiltable stands, e.g. from duo to universal stands, from horizontal to vertical stands
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
- B21B2013/003—Inactive rolling stands
-
- 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
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/4998—Combined manufacture including applying or shaping of fluent material
- Y10T29/49988—Metal casting
- Y10T29/49991—Combined with rolling
Definitions
- the invention relates to a method, as known from DE-A-2844433, for rolling finished profiles from a preliminary profile by means of a roll stand arrangement working in the reversing mode, which forms a compact rolling group, consisting of a first one provided on the input side and working in the reversing mode Universal scaffold, a second universal scaffold provided on the output side and a compression frame arranged between these universal scaffolds, which is preceded by a compression scaffold arranged directly in front of the first universal scaffold, in which the preliminary profile is a profile coming from a continuous casting device, which at both ends of a web, the later finished profile has reinforcements accordingly, and the dimensions of the preliminary profile are matched to predetermined dimensions, such as web height, web thickness and / or flange width of the finished profile to be rolled, in such a way that this preliminary profile directly into the first universal framework without any further deformation Compact group is introduced and can then be finished rolled into the finished profile with the specified dimensions.
- a rolling mill for the rolling of shaped steel, which has a heavy roughing stand that is operated in the reversing mode on the input side and that also has a reversing mode that operates over a longer roller table
- Reverse tandem scaffolding group connects, which, again via a correspondingly long roller table, is followed by a finishing group on the output side.
- the task of eliminating these disadvantages, which result from the rolling of rolled sections with predetermined, different final dimensions in the compact rolling groups with universal stands, if a preliminary profile coming from a continuous casting device and thus fixed in its dimensions is to be fed to them. and thereby creating the possibility of rolling finished profiles with significantly larger final dimension differences from this single continuous casting profile in one and the same compact rolling mill than was previously possible when introducing a preliminary profile coming from a continuous casting device into compact rolling groups, is achieved according to the invention in that the second universal stand is designed as a finishing stand and works both continuously as a working stand, with a reduced reduction compared to the first universal stand, and also in the last pass as a finishing stand in reverse operation, and the web u nd / or the flanges of this preliminary profile to achieve other dimensions that deviate from the original specification of the web height, web thickness and / or flange width in the compact rolling group rolling finished profile before it is introduced into the first universal stand of the compact rolling group by which this upstream upset is reduced.
- the web of a continuously extruded profile can either be additionally compressed and thus shortened as required, or it can be rolled out, if necessary with the addition of reinforcements of the web of the continuous casting profile which can be cast in a known manner, and if necessary the width of the flanges can be reduced and thus the width can be reduced Expand the range of finished profiles that can be produced from an initial continuous casting profile with little effort.
- liquid steel is fed from a pan 1 into a distributor 2, which feeds the mold 3.
- the strand is advanced along a support device 4 by cold strand drivers 5 and when passing directional drivers 6 directed.
- scissors or flame cutting machines are provided for dividing the strand after solidification.
- the continuously cast profiles can be used hot or cold. When hot, they are, as indicated in the drawing, fed directly to a continuous furnace 8, which ensures the optimum rolling temperature.
- the profiles separated from the strand are pushed onto a storage rack, not shown, from which they can be temporarily stored in a cold store, for example by means of a crane.
- the continuous furnace 8 which can be equipped with a walking beam bed and / or an oven roller table, and after reaching the optimum temperature for rolling, are pushed out onto the roller table 7 in the direction of the following compact rolling mill.
- the compact rolling mill consists of an edging stand, in the drawing a vertical edging stand 9, a subordinate universal stand 10 used as a work stand, then a (horizontal) flanged edging stand 11, which is followed by another universal stand 12, which is expediently designed and operated as a finishing stand becomes.
- the continuously cast profiles which are divided by a pair of scissors, a flame cutting machine or the like, are fed to the stands either in direct use or from the cold store, advantageously via a furnace which sets and secures the rolling temperature, in the exemplary embodiment the continuous furnace 8.
- the stitches of the stands are like normally set in reverse operation.
- the universal stands 10 and 12 can also be equipped and operated as universal stands or can be operated with duo roller sets as duo stands.
- the stand 10 has proven useful here to use the stand 10 as a working stand with full normal reduction, while the universal stand 12 is operated as a finishing stand, that is to say with a reduced reduction compared to the universal stand 10, so that the same roll service lives are achieved with a corresponding choice of reductions and rolling qualities .
- Reversing is customary here, so that, for example, three passes, there are six universal stitches with the universal stands 10 and 12 and three upsetting stitches with the flanges-upsetting stand 11.
- the upstream compression frame 9 remains open during the rolling of conventional profiles and is therefore ineffective.
- the vertical rolls of the universal stand 10 can have a bale in the form of two opposing truncated cones which taper towards the roll neck, so that when rolling in the universal roll stand 10, the flanges of I-beams are slightly angled in a V-shape and one speaks of an X-calibration, while the vertical rollers of the universal stand 12 are essentially cylindrical, so that flanges which are perpendicular to the web height result in accordance with an H-calibration.
- the upsetting frame 9 is additionally used with vertically standing rollers and is set against the flanges of the initial profile. By compressing the flanges of the input profile, the web is compressed and thus shortened.
- the use of this upsetting frame 9, especially if it is a one-time upsetting stitch, can be carried out in parallel with a reshaping in the following stands, so that a continuous casting profile to be rolled is inserted into the upsetting frame 9 and after upsetting the web or reducing the The web height continues to run into the following universal stand 10, the flange compression stand 11 and the universal stand 12. After passing through and reversing, the upsetting frame 9 is opened so far that only the universal frame 12, the flanges upsetting frame 11 and the universal frame 10 are involved in the following stitches.
- the rollers of the universal stands 10 and 12 and, if appropriate, of the flange upsetting frame 11 are moved so far apart that the first two stitches of the compression frame 9 are not hindered, and only during the third pass of the continuous casting profile become the roller sets of the universal stands 10 and 12 as well as the flange compression frame 10.
- areas of roll bales of a further upstream, upright, upset frame or else of the flange upset 11 can be placed against the web of the profile in order to prevent the same from buckling during upsetting or to straighten it again.
- the upsetting stand 9 can also be designed as a so-called tilting stand, which can be pivoted through 90 ° about the rolling stock axis, so that it can be used either as a horizontal stand or as a vertical stand.
- the flange compression frame as a corresponding horizontal frame.
- a horizontal compression frame can be provided. In each of these cases, caliber parts that can be adjusted against the flanks of the flanges are used here, but rather parts of the caliber of the rollers that are effective in the area of the web of the profile to be rolled.
- Such horizontal frameworks can be used particularly effectively if a continuously cast "dog-bone" profile is used, the web of which is reinforced at least in some areas.
- Such reinforcements can generally be obtained without replacing the continuous casting mold 3, for example by moving parts of the mold against each other or by removing parts used from the mold. Especially with such at least in their central region reinforced webs can be achieved by rolling them out a considerable extension and thus increase the lancing height.
- the usual heavy roughing stand which is loaded with up to 15 preforming stitches, for example, is saved as well as the roller tables assigned to it, and it is worked with an already shaped and adapted to the product, continuously cast profile in the entrance of a reversing tandem stand group, without that the advantageous use of essentially a continuously cast profile would disadvantageously limit the range of finished profiles to be created from it.
- an upstream compression stand 9 designed as a vertical stand web heights can be reduced without problems, whereby, if appropriate in accordance with the shape of the vertical rolls of the first universal stand, conical frustum in the form of conical trunks which taper towards the roll neck can be used, but also cylindrical ones Rollers are usable.
- a further saving can be achieved by dispensing with a downstream finishing stand or a downstream finishing group and by executing and using the last stand of the reversing tandem stand group as a finishing stand. It has proven useful to set smaller stitch reductions than the universal scaffold 10 used as a work scaffold.
- the possibilities of influencing can be increased if either a horizontal compression scaffold 9 is provided in addition to the vertical compression scaffold 9 or a tilting scaffold is provided which is provided by a 90 ° swivel movement either as a vertical or as a horizontal frame is usable.
- a horizontal compression scaffold 9 is provided in addition to the vertical compression scaffold 9
- a tilting scaffold is provided which is provided by a 90 ° swivel movement either as a vertical or as a horizontal frame is usable.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
Claims (1)
- Procédé pour laminer des profilés finis à partir d'une ébauche de profilé au moyen d'un train de cages de laminoir, fonctionnant en mode réversible et formant un groupe de laminage compact, qui comprend une première cage universelle (10) prévue du côté entrée et fonctionnant en mode réversible, une seconde cage universelle (12) prévue du côté sortie et une cage refouleuse (11) disposée entre ces cages universelles (10,12), une cage refouleuse (9) étant disposée en amont du groupe de laminage compact directement avant la première cage universelle (10), procédé dans lequel l'ébauche de profilé est un profilé provenant d'un dispositif de coulée continue et présentant aux deux extrémités d'une âme des renforts correspondant au profilé fini ultérieur, et les dimensions de l'ébauche de profilé sont ajustées à des côtés prédéterminées du profilé à laminer, comme la hauteur et l'épaisseur de l'âme et/ou la largeur des ailes, de telle manière que cette ébauche de profilé est introduite sans autre formage directement dans la première cage universelle (10) du groupe de laminage compact et peut alors être laminée dans celui-ci pour former le profilé fini avec les cotes prédéterminées,
caractérisé en ce que la seconde cage universelle (12) est réalisée en tant que cage finisseuse et fonctionne continuellement en mode réversible aussi bien comme cage de travail, avec plus faible réduction que la première cage universelle (10), que comme cage finisseuse lors de la dernière passe, et en ce que, afin d'obtenir pour le profilé fini à laminer dans le groupe de laminage compact des cotes qui diffèrent des données préalables quant à la hauteur et l'épaisseur de l'âme et/ou la largeur des ailes, l'âme et/ou les ailes de cette ébauche de profilé sont déformées en réduction par laminage avant son introduction dans la première cage universelle (10) du groupe de laminage compact, au moyen de la cage refouleuse (9) agencée en amont de celui-ci.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT87114862T ATE87514T1 (de) | 1986-10-27 | 1987-10-12 | Verfahren und anordnung zum walzen von stranggegossenen profilen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3636478 | 1986-10-27 | ||
DE3636478A DE3636478C2 (de) | 1986-10-27 | 1986-10-27 | Verfahren zum Walzen von Fertigprofilen aus einem Vorprofil |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0265757A2 EP0265757A2 (fr) | 1988-05-04 |
EP0265757A3 EP0265757A3 (en) | 1988-08-10 |
EP0265757B1 true EP0265757B1 (fr) | 1993-03-31 |
Family
ID=6312539
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP87114862A Expired - Lifetime EP0265757B1 (fr) | 1986-10-27 | 1987-10-12 | Procédé et arrangement pour laminer des profilés de coulée continue |
Country Status (8)
Country | Link |
---|---|
US (1) | US4860426A (fr) |
EP (1) | EP0265757B1 (fr) |
JP (1) | JP2529704B2 (fr) |
KR (1) | KR960012860B1 (fr) |
CN (1) | CN1016762B (fr) |
AT (1) | ATE87514T1 (fr) |
DE (2) | DE3636478C2 (fr) |
ES (1) | ES2039393T3 (fr) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4337555A1 (de) * | 1993-11-04 | 1995-05-11 | Schloemann Siemag Ag | Verfahren zum Walzen von Fertigprofilen aus einem Vorprofil mittels einer im Reversierbetrieb arbeitenden Walzgerüst-Anordnung |
US5664452A (en) * | 1909-11-04 | 1997-09-09 | Sms Schloemann-Siemag Aktiengesellschaft | Method of rolling finished sections from a preliminary section in a reversing rolling stand arrangement |
US5082047A (en) * | 1989-07-31 | 1992-01-21 | Bricmanage, Inc. | Method of continuously casting and rolling metallic strip |
US5018666A (en) * | 1989-12-01 | 1991-05-28 | Cf&I Steel Corporation | Unitary one quarter mile long railroad rail free of weld seams |
DE4210771C2 (de) * | 1992-04-01 | 1994-07-21 | Preussag Stahl Ag | Verfahren und Vorrichtung zum Herstellen eines Profiles |
DE4415762A1 (de) * | 1994-04-29 | 1995-11-02 | Mannesmann Ag | Verfahren und Vorrichtung zum Walzen von Trägern aus Vorprofilen |
DE19512931A1 (de) * | 1995-03-30 | 1996-10-02 | Mannesmann Ag | Universalgerüstgruppe und Verfahren zum Walzen von stranggegossenen Vorprofilen |
DE19729991A1 (de) * | 1997-07-12 | 1999-01-14 | Schloemann Siemag Ag | Verfahren zum Gießen und Walzen und eine Walzgerüstanordnung zum Walzen von Fertigprofilen (Spundwandprofilen) aus einem endabmessungsnahen, aus einer Stranggußeinrichtung kommenden Vorprofil |
DE19714216A1 (de) * | 1997-04-07 | 1998-10-08 | Schloemann Siemag Ag | Walzenstraße zum Walzen von Flachstahl |
DE19747656A1 (de) * | 1997-10-29 | 1999-05-12 | Schloemann Siemag Ag | Walzanlage für das Walzen aller Arten von Fertigprofilen |
US6112409A (en) * | 1997-11-14 | 2000-09-05 | Cosma International Inc. | Roll forming utilizing splitting technology |
JP3905666B2 (ja) * | 1999-04-28 | 2007-04-18 | 大阪製鐵株式会社 | 入口ローラガイド装置 |
CN100337956C (zh) * | 2005-02-02 | 2007-09-19 | 湖南省醴陵市楚华陶瓷实业有限公司 | 一种能自行生成竖状网纹、鱼鳞纹或横向网纹的面釉 |
CN101745534B (zh) * | 2008-12-15 | 2012-09-26 | 鞍钢股份有限公司 | 一种在热轧短流程工艺模式下进行常规轧制的方法 |
CN103553557B (zh) * | 2013-11-05 | 2015-09-09 | 北京科技大学 | 高炉熔渣生产铸石的连铸压延工艺方法及其设备 |
KR102271507B1 (ko) * | 2021-02-16 | 2021-06-30 | 지대헌 | 승합차량의 2열 독립시트용 시트 이송장치 |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1076784A (en) * | 1912-07-01 | 1913-10-28 | Johann Puppe | Process of rolling bars or girders or i, h, u, or like section. |
US1812247A (en) * | 1928-12-27 | 1931-06-30 | William C Oberg | Rolling mill plant and method of operating same |
BE631804A (fr) * | 1962-05-02 | |||
GB1292849A (en) * | 1968-12-09 | 1972-10-11 | Nippon Steel Corp | A method of rolling rails and a mill train for the same |
JPS503072A (fr) * | 1973-05-04 | 1975-01-13 | ||
JPS5192771A (en) * | 1975-02-12 | 1976-08-14 | Koyaitano yunibaasaruatsuenho | |
JPS5161459A (en) * | 1974-11-26 | 1976-05-28 | Nippon Steel Corp | Sokeikohenno renzokuseizohoho |
JPS52117861A (en) * | 1976-03-31 | 1977-10-03 | Nippon Steel Corp | Method of rolling hhshaped metal material |
DE2714985C2 (de) * | 1977-04-04 | 1982-05-06 | Chemische Werke Hüls AG, 4370 Marl | Verfahren zur Reinigung von Terephthalsäure |
JPS54123558A (en) * | 1978-03-18 | 1979-09-25 | Kawasaki Steel Co | Width widening and crude rolling method of h shaped steel material by hole forming mold |
DE2844433C2 (de) * | 1978-10-12 | 1985-05-09 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Walzstraße zum wahlweisen Walzen von schweren Trägerprofilen oder Schienen |
DE2844438C2 (de) * | 1978-10-12 | 1986-06-05 | SMS Schloemann-Siemag AG, 4000 Düsseldorf | Walzstraße zum Walzen von schweren Trägerprofilen oder Schienen |
SU966976A1 (ru) * | 1979-12-28 | 1984-02-23 | Западно-Сибирский Металлургический Завод Им.50-Летия Великого Октября | Способ непрерывной прокатки двутавровых профилей |
DE3419501A1 (de) * | 1984-05-25 | 1985-11-28 | Mannesmann AG, 4000 Düsseldorf | Kalibrierung fuer auf einer reversierbaren vorstrasse und anschliessender kontinuierlicher fertigstrasse gewalzte i- und u-traeger |
JPS6188901A (ja) * | 1984-10-09 | 1986-05-07 | Nippon Kokan Kk <Nkk> | H形鋼の製造方法 |
DE3627729C2 (de) * | 1986-08-16 | 1996-03-07 | Schloemann Siemag Ag | Formstahl-Walzwerk |
-
1986
- 1986-10-27 DE DE3636478A patent/DE3636478C2/de not_active Expired - Lifetime
-
1987
- 1987-10-12 ES ES198787114862T patent/ES2039393T3/es not_active Expired - Lifetime
- 1987-10-12 EP EP87114862A patent/EP0265757B1/fr not_active Expired - Lifetime
- 1987-10-12 DE DE8787114862T patent/DE3785138D1/de not_active Expired - Lifetime
- 1987-10-12 AT AT87114862T patent/ATE87514T1/de not_active IP Right Cessation
- 1987-10-23 KR KR1019870011789A patent/KR960012860B1/ko not_active IP Right Cessation
- 1987-10-27 CN CN87107839A patent/CN1016762B/zh not_active Expired
- 1987-10-27 JP JP62269516A patent/JP2529704B2/ja not_active Expired - Lifetime
- 1987-10-27 US US07/114,344 patent/US4860426A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US4860426A (en) | 1989-08-29 |
DE3636478C2 (de) | 1996-10-31 |
KR880004875A (ko) | 1988-06-27 |
DE3785138D1 (de) | 1993-05-06 |
JPS63115601A (ja) | 1988-05-20 |
CN1016762B (zh) | 1992-05-27 |
KR960012860B1 (ko) | 1996-09-25 |
ATE87514T1 (de) | 1993-04-15 |
CN87107839A (zh) | 1988-06-22 |
EP0265757A2 (fr) | 1988-05-04 |
EP0265757A3 (en) | 1988-08-10 |
ES2039393T3 (es) | 1993-10-01 |
JP2529704B2 (ja) | 1996-09-04 |
DE3636478A1 (de) | 1988-04-28 |
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