EP0028216B1 - Supporting and guiding element for a continuous casting plant - Google Patents
Supporting and guiding element for a continuous casting plant Download PDFInfo
- Publication number
- EP0028216B1 EP0028216B1 EP19800890112 EP80890112A EP0028216B1 EP 0028216 B1 EP0028216 B1 EP 0028216B1 EP 19800890112 EP19800890112 EP 19800890112 EP 80890112 A EP80890112 A EP 80890112A EP 0028216 B1 EP0028216 B1 EP 0028216B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- supporting
- frame part
- guiding element
- sleeve
- element according
- 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
Links
- 238000009749 continuous casting Methods 0.000 title claims description 6
- 125000006850 spacer group Chemical group 0.000 claims 1
- 230000001681 protective effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 2
- 239000000498 cooling water Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000035882 stress Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/12—Accessories for subsequent treating or working cast stock in situ
- B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
- B22D11/1281—Vertical removing
Definitions
- the invention relates to a supporting and guiding element for a continuous casting installation, in particular for a steel slab continuous casting installation, with two frame parts supporting the strand on opposite sides and having rollers, one of these frame parts being supported on a stationary support frame and the other frame part against the first Frame part can be adjusted or clamped with the interposition of intermediate pieces determining the roller spacing by means of at least one tensioning device, and wherein the frame parts are guided against one another by means of guides arranged on them and in which other frame part engaging.
- Support and guide elements of this type are known for example from AT-PS 343 303.
- the frame parts are connected to one another by means of tie rods, the tie rods also serving to accommodate the intermediate pieces which determine the roller spacing, and the tensioning devices for attaching or tightening the one frame part against the other are fastened to the tie rods. If you want to remove the frame parts, the media connections for the clamping devices must be disconnected. Furthermore, it is disadvantageous that, due to the fastening of the tensioning devices on the support and guide element, the tensioning devices must also be exchanged when the support and guide element is replaced. Furthermore, the tensioning devices in the known construction must be arranged within the area at risk of strand breakdown or within the area of the continuous casting system affected by the cooling water, so that the tensioning devices are heavily stressed and accordingly susceptible to failure.
- the invention aims to avoid these disadvantages and difficulties and has as its object to develop a support and guide element of the type described in such a way that the tensioning device is not removed or replaced when the support and guide element is removed or replaced must and can be arranged outside the area at risk from a strand break or from the cooling water. Furthermore, when removing or changing the support and guide element, loosening of media connections for the tensioning device should be avoided.
- the support frame surrounds the support and guide element in a frame-like manner, the tensioning device being fastened to a support of the support frame which engages behind the adjustable frame part and engaging on the rear side of the adjustable frame part.
- the tensioning device lies loosely on the adjustable frame part, which ensures particularly simple and rapid removal of the support and guide element.
- the tensioning device is connected to the adjustable frame part by means of a hook connection that is open in the direction of removal of the support and guide element.
- the tensioning device advantageously has a sleeve which can be displaced along a bolt and has a preferably cambered base which bears against the adjustable frame part, the sleeve being expediently able to be pressed against the frame part by means of a self-locking screw tensioning device.
- the sleeve projects through a protective wall covering the screw clamping device.
- the sleeve of the tensioning device is expediently surrounded peripherally by a protective tube arranged at a distance from the sleeve.
- FIG. 1 shows a view of the support and guide element in the direction of the strand axis
- FIG. 2 shows a section along line 11-11 of FIG. 1 according to one embodiment in a schematic representation.
- FIG. 3 shows a schematic illustration according to a further embodiment.
- a strand 3 is supported and guided between the roller conveyors 1 and 2.
- the rollers 4 of each of the two roller conveyors 1, 2 are fastened with their holders 5, 6 to a frame part 7, 8 in each case.
- Each frame part 7, 8 is composed of longitudinal and cross members 10.
- the two frame parts 7, 8 are guided to one another by means of bolts 12 extending transversely to the longitudinal axis 11 of the strand web, intermediate layers 13 being provided on the bolts, the number and thickness of which are selected according to the desired roller spacing 14 and which after pressing the two frame parts 7, 8 against one another Determine roller distance 14.
- One 7 of the frame parts 7, 8 is supported by a hook 15 and a stop 16 on a stationary support frame 17, whereas the other opposite frame part 8 is movable relative to this fixedly suspended frame part 7 and can be adjusted or tightened against it.
- the stationary support structure 17 surrounds the support and guide element composed of the two frame parts in a frame-like manner, which can be seen in particular from FIG. 1.
- the stationary support structure 17 is formed from two cross beams 18, 19 arranged parallel to the rollers and from two further beams 20 which connect them and absorb tensile forces.
- This tensioning device is essentially composed of a guide pin 23 rigidly mounted on the cross member 19, the axis 24 of which is approximately is directed at right angles to the roller conveyors 1, 2, two bushings 26, 27, which are adjacent to one another with threaded surfaces 25 and are rotatably mounted about these guide bolts 23, and a sleeve 28, which bears against the bush 26, which is closer to the adjustable or clampable frame part 8, into which the guide bolt 23 protrudes.
- a lever 29 is mounted on one of the bushes and is connected in an articulated manner to the piston 30 of the pressure medium cylinder 22.
- the inclination of the threaded surfaces 25, with which the sleeves abut one another, to the axis 24 of the guide pin 23 is chosen to be less than the friction angle corresponding to the associated coefficient of friction, so that the sleeves 26, 27 are also caused by forces caused by the strand 3 in the direction of the guide pin 23 Unloading the pressure cylinder 22 can not be rotated.
- the sleeve 28 projects through a recess 31 in the cooling chamber wall 32, so that the actual tensioning device, ie the pressure medium cylinder and the two bushings, are arranged outside the cooling chamber receiving the support and guide elements.
- the sleeve 28 is provided at its end abutting the adjustable frame part 8 with a cambered bottom 33 which lies loosely against this frame part.
- the entire supporting and guiding element can therefore be removed immediately after loosening the tensioning device 21 without any connection with the tensioning device 21 having to be released.
- the clamping device 21 remains in place when the support and guide element is removed. After installing a new intact support and guide element, it is only necessary to apply the tensioning device 21, as a result of which the support and guide element is fixed again to the support frame 17. The entire tensioning device 21 does not need to be taken into account when mounting the support and guide elements.
- a protective tube 34 is drawn over the sleeve, which surrounds the sleeve at a distance 35.
- This protective tube absorbs thermal, mechanical and corrosive stresses, which means that the sleeve is well protected against any deformation resulting from these stresses.
- a hook 37 which extends over an extension 36 of the sleeve 28, is provided on the frame part 8 that can be adjusted or tightened, so that this frame part participates in displacement movements of the sleeve in the direction of the axis 24 of the guide bolt. Since the hook is open in the direction of removal of the support and guide element, which is indicated by the arrow 38, the fast interchangeability of the support and guide element is also given in this embodiment.
- clamping device for example a pressure medium cylinder, which acts directly on the frame part that can be adjusted or tightened, can be provided.
- the support and guide element described here can not only be used as a straight vertical element, as shown in the illustrated exemplary embodiments, but can also be used for curved strand guide elements, for example for the bending zone or for a support and guide element with an arcuate roller conveyor come.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Rollers For Roller Conveyors For Transfer (AREA)
- Framework For Endless Conveyors (AREA)
Description
Die Erfindung betrifft ein Stütz- und Führungselement für eine Stranggiessanlage, insbesondere für eine Stahlbrammen-Stranggiessanlage, mit zwei den Strang an gegenüberliegenden Seiten stützenden, Rollen aufweisenden Rahmenteilen, wobei einer dieser Rahmenteile an einem ortsfest angeordneten Stützgerüst abgestützt ist und der andere Rahmenteil gegen den ersten Rahmenteil unter Zwischenlage von den Rollenabstand bestimmenden Zwischenstücken mittels mindestens einer Spannvorrichtung anstell- bzw. anspannbar ist und wobei die Rahmenteile aneinander mittels an einem von ihnen angeordneter, in denen anderen Rahmenteil eingreifender Führungen geführt sind.The invention relates to a supporting and guiding element for a continuous casting installation, in particular for a steel slab continuous casting installation, with two frame parts supporting the strand on opposite sides and having rollers, one of these frame parts being supported on a stationary support frame and the other frame part against the first Frame part can be adjusted or clamped with the interposition of intermediate pieces determining the roller spacing by means of at least one tensioning device, and wherein the frame parts are guided against one another by means of guides arranged on them and in which other frame part engaging.
Stütz- und Führungselemente dieser Art sind beispielsweise aus der AT-PS 343 303 bekannt. Die Rahmenteile werden bei dem bekannten Stütz- und Führungselement mittels Zuganker miteinander verbunden, wobei die Zuganker auch dazu dienen, die den Rollenabstand bestimmenden Zwischenstücke aufzunehmen und wobei die Spannvorrichtungen zum Anstellen bzw. Anspannen des einen Rahmenteiles gegen den anderen an den Zugankern befestigt sind. Will man die Rahmenteile ausbauen, so müssen die Medienanschlüsse für die Spannvorrichtungen abgeklemmt werden. Weiters ist es nachteilig, dass infolge der Befestigung der Spannvorrichtungen am Stütz- und Führungselement bei einem Austausch des Stütz- und Führungselementes die Spannvorrichtungen mit ausgetauscht werden müssen. Weiters müssen die Spannvorrichtungen bei der bekannten Konstruktion innerhalb des bei einem Strangdurchbruch gefährdeten Bereiches bzw. innerhalb des vom Kühlwasser beaufschlagten Bereiches der Stranggiessanlage angeordnet sein, so dass die Spannvorrichtungen stark beansprucht und dementsprechend störanfällig sind.Support and guide elements of this type are known for example from AT-PS 343 303. In the known supporting and guiding element, the frame parts are connected to one another by means of tie rods, the tie rods also serving to accommodate the intermediate pieces which determine the roller spacing, and the tensioning devices for attaching or tightening the one frame part against the other are fastened to the tie rods. If you want to remove the frame parts, the media connections for the clamping devices must be disconnected. Furthermore, it is disadvantageous that, due to the fastening of the tensioning devices on the support and guide element, the tensioning devices must also be exchanged when the support and guide element is replaced. Furthermore, the tensioning devices in the known construction must be arranged within the area at risk of strand breakdown or within the area of the continuous casting system affected by the cooling water, so that the tensioning devices are heavily stressed and accordingly susceptible to failure.
Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, ein Stütz- und Führungselement der eingangs beschriebenen Art in der Weise weiterzubilden, dass die Spannvorrichtung bei einem Ausbau bzw. Wechsel des Stütz- und Führungselementes nicht mit ausgebaut bzw. ausgetauscht werden muss und ausserhalb des bei einem Strangdurchbruch bzw. durch das Kühlwasser gefährdeten Bereiches angeordnet werden kann. Weiters soll bei einem Ausbau bzw. Wechsel des Stütz- und Führungselementes ein Lösen von Medienanschlüssen für die Spannvorrichtung vermieden werden.The invention aims to avoid these disadvantages and difficulties and has as its object to develop a support and guide element of the type described in such a way that the tensioning device is not removed or replaced when the support and guide element is removed or replaced must and can be arranged outside the area at risk from a strand break or from the cooling water. Furthermore, when removing or changing the support and guide element, loosening of media connections for the tensioning device should be avoided.
Diese Aufgaben werden erfindungsgemäss dadurch gelöst, dass das Stützgerüst das Stütz- und Führungselement rahmenartig umgibt, wobei die Spannvorrichtung an einem den anstellbaren Rahrnenteil hintergreifenden Träger des Stützgerüstes befestigt ist und am anstellbaren Rahmenteil rückseitig angreift.According to the invention, these objects are achieved in that the support frame surrounds the support and guide element in a frame-like manner, the tensioning device being fastened to a support of the support frame which engages behind the adjustable frame part and engaging on the rear side of the adjustable frame part.
Nach einer bevorzugten Ausführungsform liegt die Spannvorrichtung an dem anstellbaren Rahmenteil lose an, wodurch ein besonders einfacher und rascher Ausbau des Stütz- und Führungselementes gewährleistet ist.According to a preferred embodiment, the tensioning device lies loosely on the adjustable frame part, which ensures particularly simple and rapid removal of the support and guide element.
Nach einer weiteren bevorzugten Ausführungsform ist die Spannvorrichtung mit dem anstellbaren Rahmenteil mittels einer in Ausbaurichtung des Stütz- und Führungselementes offenen Hakenverbindung verbunden.According to a further preferred embodiment, the tensioning device is connected to the adjustable frame part by means of a hook connection that is open in the direction of removal of the support and guide element.
Vorteilhaft weist die Spannvorrichtung eine entlang eines Bolzens verschiebbare Hülse mit an dem anstellbaren Rahmenteil anliegendem, vorzugsweise bombiertem Boden auf, wobei zweckmässig die Hülse mittels einer selbsthemmenden Schraubspannvorrichtung gegen den Rahmenteil pressbar ist.The tensioning device advantageously has a sleeve which can be displaced along a bolt and has a preferably cambered base which bears against the adjustable frame part, the sleeve being expediently able to be pressed against the frame part by means of a self-locking screw tensioning device.
Zum besonderen Schutz der Spannvorrichtung durchragt die Hülse eine die Schraubspannvorrichtung abdeckende Schutzwand.For special protection of the clamping device, the sleeve projects through a protective wall covering the screw clamping device.
Damit die Spannvorrichtung auch bei hoher thermischer Beanspruchung weniger störanfällig ist, ist zweckmässig die Hülse der Spannvorrichtung von einem im Abstand von der Hülse angeordneten Schutzrohr peripher umgeben.So that the tensioning device is less susceptible to faults even under high thermal stress, the sleeve of the tensioning device is expediently surrounded peripherally by a protective tube arranged at a distance from the sleeve.
Die Erfindung ist nachfolgend an zwei Ausführungsbeispielen näher erläutert, wobei Fig. 1 eine Ansicht des Stütz- und Führungselementes in Richtung der Strangachse und Fig. 2 einen Schnitt gemäss der Linie 11-11 der Fig. 1 gemäss einer Ausführungsform in schematischer Darstellung zeigen. In Fig. 3 ist ein Detail der Fig. 2 ebenfalls in schematischer Darstellung gemäss einer weiteren Ausführungsform veranschaulicht.The invention is explained in more detail below using two exemplary embodiments, in which FIG. 1 shows a view of the support and guide element in the direction of the strand axis and FIG. 2 shows a section along line 11-11 of FIG. 1 according to one embodiment in a schematic representation. A detail of FIG. 2 is also illustrated in FIG. 3 in a schematic illustration according to a further embodiment.
Zwischen den Rollenbahnen 1 und 2 wird ein Strang 3 gestützt und geführt. Die Rollen 4 jeder der beiden Rollenbahnen 1, 2 sind mit ihren Halterungen 5, 6 an jeweils einem Rahmenteil 7, 8 befestigt. Jeder Rahmenteil 7, 8 ist aus Längs- und Querträgern 10 zusammengesetzt. Die beiden Rahmenteile 7, 8 sind aneinander mittels sich quer zur Strangbahnlängsachse 11 erstreckender Bolzen 12 geführt, wobei Zwischenlagen 13 an den Bolzen vorgesehen sind, deren Anzahl und Dicke entsprechend dem gewünschten Rollenabstand 14 gewählt ist und die nach Gegeneinanderpressen der beiden Rahmenteile 7, 8 den Rollenabstand 14 bestimmen. Einer 7 der Rahmenteile 7, 8 ist mittels eines Hakens 15 und eines Anschlages 16 an einem ortsfesten Stützgerüst 17 abgestützt, wogegen der andere gegenüberliegende Rahmenteil 8 gegenüber diesem ortsfest aufgehängten Rahmenteil 7 beweglich und gegen diesen anstell- bzw. anspannbar ist.A
Das ortsfeste Stützgerüst 17 umgibt das aus den beiden Rahmenteilen zusammengesetzte Stütz- und Führungselement rahmenartig, was insbesondere aus Fig. 1 zu ersehen ist. Das ortsfeste Stützgerüst 17 ist aus zwei parallel zu den Rollen angeordneten Querträgern 18, 19 und aus zwei weiteren, diese verbindenden, Zugkräfte aufnehmenden Trägern 20 gebildet. An dem den anstellbaren Rahmenteil 8 hintergreifenden Querträger 19 des Stützgerüstes 17 ist eine Spannvorrichtung 21 angeordnet, die durch einen Druckmittelzylinder 22 betätigt werden kann. Diese Spannvorrichtung setzt sich im wesentlichen zusammen aus einem am Querträger 19 starr montierten Führungsbolzen 23, dessen Achse 24 etwa rechtwinkelig zu den Rollenbahnen 1, 2 gerichtet ist, zwei mit Gewindeflächen 25 aneinanderliegenden, um diesen Führungsbolzen 23 drehbar gelagerten Büchsen 26, 27 und einer an der dem anstell- bzw. anspannbaren Rahmenteil 8 näher liegenden Büchse 26 anliegenden Hülse 28, in die der Führungsbolzen 23 ragt. An einer der Büchsen ist ein Hebel 29 montiert, der mit dem Kolben 30 des Druckmittelzylinders 22 gelenkig verbunden ist. Die Neigung der Gewindeflächen 25, mit der die Büchsen aneinander anliegen, zur Achse 24 des Führungsbolzens 23 ist geringer gewählt als der dem zugehörigen Reibungskoeffizienten entsprechende Reibungswinkel, so dass die Büchsen 26, 27 durch vom Strang 3 in Richtung des Führungsbolzen 23 hervorgerufene Kräfte auch bei Nichtbeaufschlagung des Druckmittelzylinders 22 nicht verdreht werden können. Die Hülse 28 durchragt eine Ausnehmung 31 der Kühlkammerwand 32, so dass die eigentliche Spannvorrichtung, d.h. der Druckmittelzylinder und die beiden Büchsen ausserhalb der die Stütz- und Führungselemente aufnehmenden Kühlkammer angeordnet sind.The
Die Hülse 28 ist an ihrem am anstellbaren Rahmenteil 8 anliegenden Ende mit einem bombierten Boden 33 versehen, der lose an diesem Rahmenteil anliegt. Im Falle eines Strangdurchbruches kann daher das gesamte Stütz- und Führungselement nach Lösen der Spannvorrichtung 21 sofort ausgebaut werden, ohne dass irgendeine Verbindung mit der Spannvorrichtung 21 gelöst werden muss. Die Spannvorrichtung 21 verbleibt beim Ausbau des Stütz- und Führungselementes an Ort und Stelle. Nach Einbau eines neuen intakten Stütz- und Führungselementes braucht lediglich die Spannvorrichtung 21 beaufschlagt zu werden, wodurch das Stütz- und Führungselement am Stützgerüst 17 wieder fixiert ist. Die gesamte Spannvorrichtung 21 braucht bei der Lagerhalterung der Stütz- und Führungselemente nicht berücksichtigt zu werden.The
Zum Schutz der Hülse 28 ist über die Hülse ein Schutzrohr 34 gezogen, welches die Hülse mit Abstand 35 umgibt. Dieses Schutzrohr nimmt thermische und mechanische sowie korrosive Beanspruchungen auf, wodurch die Hülse vor etwaigen aus diesen Beanspruchungen resultierenden Verformungen gut geschützt ist.To protect the
Bei der in Fig. 3 dargestellten Ausführungsform ist an dem anstell- bzw. anspannbaren Rahmenteil 8 ein einen Fortsatz 36 der Hülse 28 übergreifender Haken 37 vorgesehen, so dass dieser Rahmenteil Verschiebebewegungen der Hülse in Richtung der Achse 24 des Führungsbolzens mitmacht. Da der Haken in Ausbaurichtung des Stütz- und Führungselementes, die durch den Pfeil 38 angegeben ist, offen ist, ist auch bei dieser Ausführungsform die schnelle Austauschbarkeit des Stütz- und Führungselementes gegeben.In the embodiment shown in FIG. 3, a
Anstelle der beschriebenen Spannvorrichtung kann auch eine andere Spannvorrichtung, beispielsweise ein Druckmittelzylinder, der mit dem Kolben direkt auf den anstell- bzw. anspannbaren Rahmenteil wirkt, vorgesehen sein.Instead of the clamping device described, another clamping device, for example a pressure medium cylinder, which acts directly on the frame part that can be adjusted or tightened, can be provided.
Das hier beschriebene Stütz- und Führungselement ist nicht nur als gerades Vertikal-Element, wie in den dargestellten Ausführungsbeispielen gezeigt, einsetzbar, sondern kann auch für bogenförmige Strangführungselemente, wie beispielsweise für die Biegezone oder für ein Stütz- und Führungselement mit einer kreisbogenförmigen Rollenbahn zum Einsatz kommen.The support and guide element described here can not only be used as a straight vertical element, as shown in the illustrated exemplary embodiments, but can also be used for curved strand guide elements, for example for the bending zone or for a support and guide element with an arcuate roller conveyor come.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT687579A AT363211B (en) | 1979-10-22 | 1979-10-22 | SUPPORT AND GUIDE ELEMENT FOR A CONTINUOUS CASTING SYSTEM |
| AT6875/79 | 1979-10-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0028216A1 EP0028216A1 (en) | 1981-05-06 |
| EP0028216B1 true EP0028216B1 (en) | 1983-05-18 |
Family
ID=3590654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19800890112 Expired EP0028216B1 (en) | 1979-10-22 | 1980-10-03 | Supporting and guiding element for a continuous casting plant |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0028216B1 (en) |
| JP (1) | JPS57112958A (en) |
| AT (1) | AT363211B (en) |
| BR (1) | BR8006762A (en) |
| CA (1) | CA1145527A (en) |
| DE (1) | DE3063355D1 (en) |
| ES (1) | ES8200028A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4010967A1 (en) * | 1990-04-05 | 1991-10-10 | Schloemann Siemag Ag | DEVICE FOR DEFORMING A METAL CASTING STRAND |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT343303B (en) * | 1975-10-01 | 1978-05-26 | Voest Ag | SUPPORT BEND AND GUIDE BEND FOR CAST ROD, IN PARTICULAR FOR CAST ROD |
| AT341698B (en) * | 1975-10-16 | 1978-02-27 | Voest Ag | SUPPORT BEND AND GUIDE BEND FOR CAST ROD, IN PARTICULAR FOR CAST ROD |
| AT338984B (en) * | 1975-11-12 | 1977-09-26 | Voest Ag | SUPPORT AND GUIDE FRAMEWORK, IN PARTICULAR SUPPORT AND GUIDE BOWS FOR CAST BRANDS |
| US4058154A (en) * | 1976-09-23 | 1977-11-15 | Concast Incorporated New York | Guiding and supporting means for continuously cast metal strand |
-
1979
- 1979-10-22 AT AT687579A patent/AT363211B/en not_active IP Right Cessation
-
1980
- 1980-10-03 EP EP19800890112 patent/EP0028216B1/en not_active Expired
- 1980-10-03 DE DE8080890112T patent/DE3063355D1/en not_active Expired
- 1980-10-06 CA CA000361617A patent/CA1145527A/en not_active Expired
- 1980-10-13 JP JP14213280A patent/JPS57112958A/en active Pending
- 1980-10-14 ES ES495930A patent/ES8200028A1/en not_active Expired
- 1980-10-21 BR BR8006762A patent/BR8006762A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES495930A0 (en) | 1981-10-16 |
| ATA687579A (en) | 1980-12-15 |
| JPS57112958A (en) | 1982-07-14 |
| CA1145527A (en) | 1983-05-03 |
| AT363211B (en) | 1981-07-27 |
| ES8200028A1 (en) | 1981-10-16 |
| EP0028216A1 (en) | 1981-05-06 |
| BR8006762A (en) | 1981-04-28 |
| DE3063355D1 (en) | 1983-07-07 |
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