EP0204896B1 - Ensemble de réparation pour plaques coulissantes - Google Patents
Ensemble de réparation pour plaques coulissantes Download PDFInfo
- Publication number
- EP0204896B1 EP0204896B1 EP86103260A EP86103260A EP0204896B1 EP 0204896 B1 EP0204896 B1 EP 0204896B1 EP 86103260 A EP86103260 A EP 86103260A EP 86103260 A EP86103260 A EP 86103260A EP 0204896 B1 EP0204896 B1 EP 0204896B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- components
- set according
- repair set
- component
- repair
- 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
- 239000002184 metal Substances 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 9
- 238000010276 construction Methods 0.000 claims description 3
- 239000011214 refractory ceramic Substances 0.000 claims 2
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 238000013461 design Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- ZLNQQNXFFQJAID-UHFFFAOYSA-L magnesium carbonate Chemical compound [Mg+2].[O-]C([O-])=O ZLNQQNXFFQJAID-UHFFFAOYSA-L 0.000 description 2
- 229910000021 magnesium carbonate Inorganic materials 0.000 description 2
- 235000014380 magnesium carbonate Nutrition 0.000 description 2
- 239000001095 magnesium carbonate Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000002386 leaching Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000003870 refractory metal Substances 0.000 description 1
- 238000012360 testing method Methods 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
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/14—Closures
- B22D41/22—Closures sliding-gate type, i.e. having a fixed plate and a movable plate in sliding contact with each other for selective registry of their openings
- B22D41/28—Plates therefor
- B22D41/30—Manufacturing or repairing thereof
Definitions
- the invention relates to a repair kit for slide plates according to the preamble of claim 1.
- Two or more slide plates form together with suitable retaining members and displacement embedding Rich t Ungen so-called sliding gate valves which form the outlet of a treatment vessel for molten metal.
- the individual slide plates each have a through hole which, depending on the arrangement of the individual plates forming the slide closure, form a passage opening or a closure for the molten metal. Due to the slidability of the plates, the size of the passage opening can also be adjusted.
- Both slide closures are known in which the plates are rotatably guided and supported relative to one another, as well as those in which the plates are arranged displaceably relative to one another.
- the slide plates consist of suitable refractory qualities, such as high alumina or magnesite masses. Although these qualities have a relatively high resistance to erosion in addition to fire resistance, it cannot be avoided that when the metal melts pass through the area of the through hole, refractory parts are eroded (eroded) which, with increasing duration, lead to "leaching" in the area of the through holes, thereby Not only do contaminants get into the molten metal, but the amount that passes through is no longer controllable. In addition, the tightness of the slide plates against each other is endangered.
- a repair method for a slide plate is known in which a cylindrical insert is mortared into the eroded and drilled out flow area of the plate, particularly in the case of long uses this also consists of two parts placed one behind the other which can be fixed against each other for example via a tongue and groove connection. Due to the cylindrical shape of the insert or inserts, there is a risk of the mortared parts slipping out during later use.
- the invention is based on the object of demonstrating a possibility of repairing panels of slide closures, even if they were initially inserted on both sides and washed out in the area of the through opening.
- the aim is that such a slide plate can then be used again twice (after turning through 180 ° in the holder). Above all, the functional reliability of the repaired panels is to be improved.
- the invention provides a repair set for a slide plate with the features of claim 1.
- An advantageous repair set consists of two plate-shaped components, the respective circumference or diameter of which decreases from one side to the opposite. This makes it possible, with a corresponding design of the corresponding inner surface of the bore in the slide plate, to use the components of the repair set in a non-positive and / or positive manner.
- each component can be inserted like a wedge into the corresponding receptacle in the slide plate and fixed there. This makes it easier to set the components in the slide plate.
- the repair set consists of two plate-shaped or ring-shaped components, each of which has a circumferential flange in the region of the base surfaces later lying on the outside.
- the used slide plate is then first drilled through in such a way that the inside diameter of the hole is somewhat larger than the outside diameter of the tapered section of each component.
- the slide plate is then drilled (milled) in the area of its outer surfaces at a distance from it, which in turn is somewhat larger than the outer diameter of the flange of the components.
- the individual components can thus in the bore of the slide plate to be repaired are "hooked in” where they rest with their flange on the corresponding step of the bore of the slide plate.
- the components must be fixed against each other and with the slide plate in order to enable the plate to be turned and the components to lie tightly against one another.
- This embodiment has the advantage that the repair set can consist of two identical parts, which simplifies the manufacture as well as the storage of the corresponding spare parts.
- the invention provides a solution in which at least one of the components is provided with an external thread.
- the external thread can be integral with the respective component, i. H. be integrally formed with this.
- a corresponding counter thread must then be formed in the area of the inner wall of the bore in the slide plate to be repaired.
- the component is then inserted into the bore of the slide plate like a screw.
- the components of the repair set are made from a material with the same coefficient of thermal expansion, preferably from the same material as the slide plate.
- the thread can also be made of a different material.
- a cuff formed with the thread to be applied in a stationary manner, preferably shrink-fitted, to the outer surface of a component.
- the sleeve can consist of a suitable heat-resistant steel quality, which, for example heated to 600 ° C., is placed over the outer surface of the component of the repair set and then cooled, whereby it lies firmly on the peripheral surface of the component due to the contraction during cooling. Two correspondingly designed components are then screwed into the bore of the plate to be repaired, as described above.
- the protruding part of the sleeve of the one component is then guided over the sleeve shrunk onto the shaft of the first component and both are fixed against one another by twisting. Additional devices are then not necessary because the flanges also provide a fixation with the slide plate.
- the thread cuts of the sleeves are preferably designed in such a way that a type of bayonet lock is produced.
- the metal sleeves end at a distance from the circumferential flanges, so that free expansion at higher temperatures is possible without destroying the refractory material is.
- the invention also makes it possible to design the components of the repair set so that they are directly suitable for connecting the other elements of the slide closure.
- annular grooves and / or elevations for receiving or aligning the sleeves can be provided on the surfaces of the components which are located on the outside in later use.
- the service life of a slide plate of a slide closure can be increased at least twice. After the slide plate has worn on one side, it is first turned over and used again. If this second side is also excessively eroded in the area of the through opening for the molten metal, the plate is repaired by using a repair set according to the invention, after which it is again available for use on both sides. Due to the construction according to the invention, it is even possible to replace the repair set that is later worn out with a new one.
- the repair set shown in Figures 1a, b and 2 consists of two components 10, 12, made of refractory material, in this embodiment of a high-alumina mass.
- the material of the components 10, 12 preferably consists of the same material from which the slide plate to be repaired is constructed.
- the upper component 10 has an annular shape with a central through hole 14, the lateral surface extends vertically downward from the base surface 18 and has a recess 20 at a distance from the base surface 18, as a result of which the circumferential ring flange 22 is formed.
- the outer surface 16 extends from the lower surface 24 of the ring flange 22 in a cylindrical shape and concentrically to the peripheral surface 26 of the ring flange 22 as far as the lower base surface 28, as a result of which the shaft-shaped section 30 is formed.
- a metal sleeve 32 is seated in a fixed position and has a cord thread 34 pressed outward.
- the sleeve 32 made of a steel of the quality St 12/14 has been shrunk seamlessly onto the shaft-shaped section 30 after heating to 500 to 600 ° C. and then cooling.
- the collar 32 has such a height that it ends at a distance from the lower base surface 28 from the lower surface 24 of the flange 22. This allows expansion of the metal to be absorbed in later operation without exerting any mechanical stress on the refractory material.
- the associated lower component 12 (shown in FIG. 1a due to the later assembly turned around by 180 °) is almost identical in construction to part 10. While the dimensions of the ring flange 38 are identical to those of the ring flange 22 of the upper component 10, the shaft-shaped one Section 40 of the component 12 is formed with a somewhat larger diameter than the shaft-shaped section 30 of the upper component 10.
- a sleeve 42 made of a steel sheet is shrunk onto the shaft-shaped section 40 and bears an expressed cord thread 44.
- One end of the sleeve 42 is, as described with reference to FIG. 1a a, at a distance from the lower surface 50 of the flange 38, but extends beyond the lower base surface 52 of the shaft-shaped section 40, so that a projecting area 54 provided with the cord thread 44 is formed becomes.
- the seat of the repair set according to the invention in a slide plate 56 is also indicated schematically in FIG.
- the slide plate 56 has been drilled out using a suitable device with a center bore 58, the diameter of which is slightly smaller than the outer diameter of the components 10, 12 in the region of the flanges 22, 38.
- the slide plate 56 is shown in FIG Extension of the center bore 58 furthermore each milled out a step-shaped recess 64 which, as can be seen in FIG. 2, serves to support the projecting regions of the ring flanges 22, 38.
- the repair set is also fixed with the slide plate 56 without further measures being necessary, but which, if desired, can be carried out additionally, for example an additional mortaring or gluing of the components 10, 12 and the slide plate 56 or a backfilling of the cavity 66 formed between the sleeve 42 and the central bore 58.
- the inner wall of the center bore 58 could also be provided with threads corresponding to the cord thread 44, so that the lower component 12 would then first be inserted (screwed) into the slide plate 56 via the sleeve 42. Only then would the upper component 10 with its sleeve 32 with the expressed cord thread 34 be inserted (screwed in) into the protruding area 54 of the sleeve 42 of the lower component 12.
- the repair set according to the invention shown in FIG. 3 consists of two components 68, 70 with the same external dimensions.
- the shape of the components 68, 70 corresponds to that of the components 10, 12 according to FIGS. 1a, b and 2.
- a concentric line at a distance around the through-bore 72 for a molten metal is also provided further bores 74, 76 to one another are provided.
- 3 shows two possibilities for the formation of the bores 74, 76 which can be implemented alternatively or cumulatively in a repair set.
- the bores 74 are designed as through bores in each component 68, 70.
- the bores 74 have a somewhat larger diameter in the region of the outer base surfaces 78, 80, with the formation of a circumferential step 82.
- a screw 84 is then inserted into the bore 74 from above, the dimensions of which are chosen, in order to fix the components 74, 76 that the screw head 86 rests on the step 82, and the shaft end 88, which is provided with an external thread, ends at the level of the base surface 80.
- the two components 78, 80 are then fixed against one another via a nut 90 placed on the thread. At least three such screw connections are preferably provided at a distance from one another around the through bore 72.
- a blind bore 77 is provided instead of a through bore 76 in the lower component 70.
- the blind bore 77 can be designed with a sleeve with an internal thread, via which a screw 92 inserted through the upper component 68 is connected to the lower component 70;
- an expansion dowel can also be used, which allows expansion in the area of the blind bore 77 to fix the component 70 relative to the component 68.
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Claims (15)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3517652 | 1985-05-15 | ||
DE3517652A DE3517652C1 (de) | 1985-05-15 | 1985-05-15 | Reparaturset für Schieberplatten |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0204896A1 EP0204896A1 (fr) | 1986-12-17 |
EP0204896B1 true EP0204896B1 (fr) | 1988-06-08 |
Family
ID=6270888
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86103260A Expired EP0204896B1 (fr) | 1985-05-15 | 1986-03-11 | Ensemble de réparation pour plaques coulissantes |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP0204896B1 (fr) |
DE (2) | DE3517652C1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3622081A1 (de) * | 1986-07-02 | 1988-01-07 | Hermann Rauen Aufbereitungstec | Reparaturverfahren fuer schieberplatten |
DE4419159C2 (de) * | 1994-06-01 | 1997-06-12 | Deutsche Forsch Luft Raumfahrt | Vorrichtung zum Herstellen einer Fügeverbindung |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1310291A (fr) * | 1961-01-16 | 1963-03-06 | ||
GB1178523A (en) * | 1968-01-30 | 1970-01-21 | Vesuvius Crucible Co | A Stopper Assembly for a Bottom Pour Steel Ladle or Similar Receptacle |
DE2719105B2 (de) * | 1977-04-29 | 1979-10-31 | Didier-Werke Ag, 6200 Wiesbaden | Feuerfeste Platte für Schieberverschlüsse an metallurgischen Gefäßen |
DE2733665C2 (de) * | 1977-07-26 | 1985-10-24 | Didier-Werke Ag, 6200 Wiesbaden | Auswechselbare Verschleißteile für Schiebeverschlüsse |
US4314659A (en) * | 1978-06-19 | 1982-02-09 | Flo-Con Systems, Inc. | Rotary valve |
CA1126472A (fr) * | 1978-06-19 | 1982-06-29 | Flo-Con Systems, Inc. | Vanne tournante |
GB2060842A (en) * | 1979-08-01 | 1981-05-07 | Fichera E | Methods of repairing refractories for sliding valves and means for performing it |
IT1131943B (it) * | 1980-07-10 | 1986-06-25 | Flocon Italiana | Procedimento per rigenerare o modificare piastre refrattarie dei cassetti di colata delle siviere |
IT1142623B (it) * | 1981-12-22 | 1986-10-08 | Flocon Italiana | Procedimento per rigenerare una piastra mobile di un cassetto di colata di una siviera |
BE893054A (fr) * | 1982-05-03 | 1982-11-03 | Vesuvius Internat Corp | Confection d'une plaque refractaire circulaire de grande dimension |
DE3307193C2 (de) * | 1983-03-01 | 1986-04-17 | VGT AG, 3432 Großalmerode | Feuerfeste Schieberplatte |
-
1985
- 1985-05-15 DE DE3517652A patent/DE3517652C1/de not_active Expired
-
1986
- 1986-03-11 EP EP86103260A patent/EP0204896B1/fr not_active Expired
- 1986-03-11 DE DE8686103260T patent/DE3660275D1/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE3517652C1 (de) | 1986-09-18 |
DE3660275D1 (en) | 1988-07-14 |
EP0204896A1 (fr) | 1986-12-17 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE4002494C2 (fr) | ||
DE1907519A1 (de) | Mutter mit mehreren Abdrehbuenden | |
AT397479B (de) | Feuerfeste verschlussplatte und schiebeverschluss am ausguss eines metallschmelze enthaltenden gefässes | |
DE3124359C2 (de) | Verfahren zur Reparatur bzw. Wiederherstellung von feuerfesten Verschleißteilen von Schieberverschlüssen | |
DE3213213A1 (de) | Einbauvorrichtung fuer duebel in schichtverbundplatten | |
LU84868A1 (de) | Einspannvorrichtung fuer eine verschlussplatte an einem schiebeverschluss fuer den ausguss an einem metallschmelze enthaltenden behaelter | |
DE10319756B4 (de) | Verbindungssysteme mit wenigstens einem inneren und einem äußeren Kunststoffteil | |
DE20221801U1 (de) | Mutter | |
DE2602377C2 (de) | Anordnung aus zwei ineinandergreifenden feuerfesten Körpern | |
DE1912905C3 (de) | Korrosionsbeständiger Kegelhahn | |
DE3421205C2 (de) | Einrichtung zum Festlegen einer feuerfesten Verschlußplatte eines Schieberverschlusses | |
EP0204896B1 (fr) | Ensemble de réparation pour plaques coulissantes | |
DE3207566A1 (de) | Verfahren zur herstellung einer auf einer gewindespindel laufenden doppelmutter | |
DE202005005872U1 (de) | Stützhülse für Zylinderkopfschrauben und Zylinderkopf | |
DE102005014561A1 (de) | Backzange für einen Waffelbackofen | |
DE2657535C2 (de) | AnschluDfertige Trommel aus Metall oder Kunststoff in Polygonal- oder Zylinderform | |
DE2541026B1 (de) | Beschlag fuer einen ganzglasfluegel eines fensters oder einer tuer | |
DE2733669C2 (fr) | ||
EP1711292A1 (fr) | Plaque a coulisse | |
DE3005583A1 (de) | Stoessel mit automatischem spielausgleich | |
DE7441924U (de) | Verschlussschiebervorrichtung fuer feuerfeste behaelter | |
WO1995003145A1 (fr) | Systeme permettant de relier une quenouille de cuve metallurgique a son dispositif de levage, quenouille appropriee au systeme et procede de production dudit systeme | |
DE1909444A1 (de) | Mischarmatur | |
DE20003929U1 (de) | Befestigungskörper für einen Tür- und/oder Fensterbeschlag | |
DE2002528A1 (de) | Mischventil fuer eine Warmwasser-Heizungsanlage |
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: A1 Designated state(s): DE FR GB IT LU NL SE |
|
17P | Request for examination filed |
Effective date: 19861124 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: RADEX DEUTSCHLAND AKTIENGESELLSCHAFT FUER FEUERFES |
|
17Q | First examination report despatched |
Effective date: 19870722 |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): DE FR GB IT LU NL SE |
|
ITF | It: translation for a ep patent filed | ||
REF | Corresponds to: |
Ref document number: 3660275 Country of ref document: DE Date of ref document: 19880714 |
|
ET | Fr: translation filed | ||
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 19890331 |
|
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed | ||
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: LU Payment date: 19900216 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 19900220 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 19900223 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 19900228 Year of fee payment: 5 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 19900331 Year of fee payment: 5 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Effective date: 19910311 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE Effective date: 19910312 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 19910318 Year of fee payment: 6 |
|
ITTA | It: last paid annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NL Effective date: 19911001 |
|
GBPC | Gb: european patent ceased through non-payment of renewal fee | ||
NLV4 | Nl: lapsed or anulled due to non-payment of the annual fee | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: FR Effective date: 19911129 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: ST |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DE Effective date: 19921201 |
|
EUG | Se: european patent has lapsed |
Ref document number: 86103260.5 Effective date: 19911009 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES;WARNING: LAPSES OF ITALIAN PATENTS WITH EFFECTIVE DATE BEFORE 2007 MAY HAVE OCCURRED AT ANY TIME BEFORE 2007. THE CORRECT EFFECTIVE DATE MAY BE DIFFERENT FROM THE ONE RECORDED. Effective date: 20050311 |