EP0110310A2 - Procédé de réparation de plaques pour fermeture coulissante - Google Patents

Procédé de réparation de plaques pour fermeture coulissante Download PDF

Info

Publication number: EP0110310A2
Authority: EP; European Patent Office
Prior art keywords: slide plate; opening; casting compound; refractory; bore
Prior art date: 1982-11-23
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

Application number

EP83111713A

Other languages

German (de)

English (en)

Other versions

EP0110310B1 (fr

EP0110310A3 (en

Inventor

Egon Evertz

Jörg Pirdzun

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Individual

Original Assignee

Individual

Priority date (The priority date 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 date listed.)

1982-11-23

Filing date

1983-11-23

Publication date

1984-06-13

Family has litigation

First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6178816&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0110310(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1983-11-23 Application filed by Individual filed Critical Individual

1983-11-23 Priority to AT83111713T priority Critical patent/ATE20837T1/de

1984-06-13 Publication of EP0110310A2 publication Critical patent/EP0110310A2/fr

1984-09-26 Publication of EP0110310A3 publication Critical patent/EP0110310A3/de

1986-07-23 Application granted granted Critical

1986-07-23 Publication of EP0110310B1 publication Critical patent/EP0110310B1/fr

Status Expired legal-status Critical Current

Links

238000000034 method Methods 0.000 title claims abstract description 17
238000005266 casting Methods 0.000 claims abstract description 37
239000011819 refractory material Substances 0.000 claims abstract description 21
239000011148 porous material Substances 0.000 claims abstract description 13
229910001338 liquidmetal Inorganic materials 0.000 claims abstract description 10
230000003628 erosive effect Effects 0.000 claims abstract description 5
238000009749 continuous casting Methods 0.000 claims abstract description 3
239000007787 solid Substances 0.000 claims abstract 2
150000001875 compounds Chemical class 0.000 claims description 34
PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
239000004568 cement Substances 0.000 claims description 4
239000000919 ceramic Substances 0.000 claims description 3
230000006835 compression Effects 0.000 claims description 3
238000007906 compression Methods 0.000 claims description 3
239000011398 Portland cement Substances 0.000 claims description 2
230000002745 absorbent Effects 0.000 claims description 2
239000002250 absorbent Substances 0.000 claims description 2
239000000203 mixture Substances 0.000 claims description 2
XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
238000001035 drying Methods 0.000 claims 1
238000007711 solidification Methods 0.000 claims 1
230000008023 solidification Effects 0.000 claims 1
230000000717 retained effect Effects 0.000 abstract description 3
239000000463 material Substances 0.000 description 9
238000006073 displacement reaction Methods 0.000 description 3
238000005553 drilling Methods 0.000 description 3
239000010419 fine particle Substances 0.000 description 3
239000000126 substance Substances 0.000 description 3
UNILWMWFPHPYOR-KXEYIPSPSA-M 1-[6-[2-[3-[3-[3-[2-[2-[3-[[2-[2-[[(2r)-1-[[2-[[(2r)-1-[3-[2-[2-[3-[[2-(2-amino-2-oxoethoxy)acetyl]amino]propoxy]ethoxy]ethoxy]propylamino]-3-hydroxy-1-oxopropan-2-yl]amino]-2-oxoethyl]amino]-3-[(2r)-2,3-di(hexadecanoyloxy)propyl]sulfanyl-1-oxopropan-2-yl Chemical compound O=C1C(SCCC(=O)NCCCOCCOCCOCCCNC(=O)COCC(=O)N[C@@H](CSC[C@@H](COC(=O)CCCCCCCCCCCCCCC)OC(=O)CCCCCCCCCCCCCCC)C(=O)NCC(=O)N[C@H](CO)C(=O)NCCCOCCOCCOCCCNC(=O)COCC(N)=O)CC(=O)N1CCNC(=O)CCCCCN\1C2=CC=C(S([O-])(=O)=O)C=C2CC/1=C/C=C/C=C/C1=[N+](CC)C2=CC=C(S([O-])(=O)=O)C=C2C1 UNILWMWFPHPYOR-KXEYIPSPSA-M 0.000 description 2
238000004873 anchoring Methods 0.000 description 2
239000007788 liquid Substances 0.000 description 2
230000035515 penetration Effects 0.000 description 2
229910000831 Steel Inorganic materials 0.000 description 1
230000007797 corrosion Effects 0.000 description 1
238000005260 corrosion Methods 0.000 description 1
238000005336 cracking Methods 0.000 description 1
238000004079 fireproofing Methods 0.000 description 1
230000001771 impaired effect Effects 0.000 description 1
239000011344 liquid material Substances 0.000 description 1
238000004519 manufacturing process Methods 0.000 description 1
239000002184 metal Substances 0.000 description 1
229910052751 metal Inorganic materials 0.000 description 1
150000002739 metals Chemical class 0.000 description 1
239000002245 particle Substances 0.000 description 1
239000011343 solid material Substances 0.000 description 1
229910001220 stainless steel Inorganic materials 0.000 description 1
239000010935 stainless steel Substances 0.000 description 1
239000010959 steel Substances 0.000 description 1
238000005406 washing 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 method for repairing lower and upper slide plates of closures in metallurgical vessels, in particular in ladles and intermediate containers for continuous casting, the slide plate optionally releasing the jet of liquid metal with a through opening or depending on its position interrupts the closed section and experiences damage, in particular erosions and radial cracks, from its through opening by drilling a hole in the opening area concentrically to its through opening, and pouring a refractory casting compound into the bore, leaving the through opening free, and compacting it.
a casting or ramming compound with needles made of stainless steel is used in order to prevent the inserted repair compound from tearing again due to the improved elasticity of the introduced repair compound.
slide plates for the selective opening or control of the outflow of metals from metallurgical containers require a linear displacement or rotation.
slide plates are subject to considerable thermal and chemical stress from the liquid metal. Therefore, the opening wears out after some operating time, whereupon an opening located at another point on the slide plate is then frequently used for further operation. Wear occurs due to erosion and corrosion, especially where the jet of liquid metal also acts mechanically on the fire solid material arrives.
the slide plates are often repaired after removal with an insert sleeve made of refractory material, which is inserted into the opening in the slide plate, for which purpose the opening is often concentrically enlarged to a limited extent.
an insert sleeve made of refractory material which is inserted into the opening in the slide plate, for which purpose the opening is often concentrically enlarged to a limited extent.
the invention has for its object to repair a slide plate of the type described so that no liquid metal can penetrate into the radial cracks in the material preserved.
the compression of the casting compound leads to an open pore volume with a porosity of approximately 10%, in particular due to vibrations. This process supports the penetration of the fine particles of the casting compound into the pores of the remaining substance of the slide plate, which is already favored by the pouring flow.
the refractory casting compound is solidified on the one hand hydraulically and on the other hand ceramic, in that it has both hydraulically and ceramic-hardenable components.
This can be Portland cement and alumina cement, but only alumina cement alone.
the proportion of the cements mentioned is chosen so that the pourability is retained and that it requires about 7% of water to be added to the overall mixture. It is therefore also possible to set the total alumina content therein to more than 90% in the interest of a particularly effective fire resistance of the casting compound.
the bore to be made in the used slide plate has a considerable diameter of approximately 200 mm.
the slide plate which has been restored to this extent is first exposed to a setting in air at room temperature for about 12 hours. Only then is it dried at around 250 ° C and finally solidified in ceramics during operation.
the slide plate 5 shown in the two figures has an oval cross-section and can be displaced between two positions in the direction of its longitudinal axis.
its through opening 1 is aligned with the outlet opening 4 in the base 3 of the metallurgical vessel, so that, for example, liquid steel can escape.
the axis of the through opening 1 coincides with the axis 2 of the outlet opening. If the jet of liquid metal is to be shut off, the slide plate is moved to the left so that the outlet opening 4 is covered by the refractory material of the slide plate.
the slide plate which has been removed for the purpose of repair, is brought with its upper side to the bottom on a flat surface, the attachment designed in the form of a funnel 8 being directed upwards. Then the ring 11 is centered with respect to the casing 6 by means of the cardboard sleeve 12 and held in this position.
the refractory casting compound 13 can then be poured into the space between the ring 11 and the refractory material 10 that has been preserved or the border 6 exists.
An attachable shape also allows the funnel 8 to be poured out. This form is removed after the casting compound has set.
the percentages given in the above description relate to volume percentages insofar as they indicate the pore volume. Incidentally, the percentages are percentages by weight.
the relationship according to the invention between the grain structure of the refractory casting compound and the pore size of the refractory material obtained is advantageously met in that the refractory casting compound has predominantly grain diameters of less than 3/4 of the average pore volume of the material obtained.
the refractory casting compound has predominantly grain diameters of less than 3/4 of the average pore volume of the material obtained.
the refractory casting compound then has a grain structure with predominantly grain diameters of less than about 30 u.

Landscapes

Engineering & Computer Science (AREA)
Manufacturing & Machinery (AREA)
Mechanical Engineering (AREA)
Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Sliding Valves (AREA)
Carbon Steel Or Casting Steel Manufacturing (AREA)

EP83111713A 1982-11-23 1983-11-23 Procédé de réparation de plaques pour fermeture coulissante Expired EP0110310B1 (fr)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
AT83111713T ATE20837T1 (de)	1982-11-23	1983-11-23	Verfahren zur instandsetzung von schieberplatten.

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
DE3243305		1982-11-23
DE3243305A DE3243305C1 (de)	1982-11-23	1982-11-23	Verfahren zur Instandsetzung von Schieberplatten

Publications (3)

Publication Number	Publication Date
EP0110310A2 true EP0110310A2 (fr)	1984-06-13
EP0110310A3 EP0110310A3 (en)	1984-09-26
EP0110310B1 EP0110310B1 (fr)	1986-07-23

Family

ID=6178816

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP83111713A Expired EP0110310B1 (fr)	1982-11-23	1983-11-23	Procédé de réparation de plaques pour fermeture coulissante

Country Status (4)

Country	Link
EP (1)	EP0110310B1 (fr)
AT (1)	ATE20837T1 (fr)
DE (1)	DE3243305C1 (fr)
SE (1)	SE447458B (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3527756A1 (de) *	1985-08-02	1987-03-26	Didier Werke Ag	Verfahren zum erneuern von in schieberverschluessen verwendeten feuerfesten platten
DE4042203C2 (de) *	1990-12-29	2003-03-20	Egon Evertz	Schieberplatte für Schieberverschlüsse von metallurgischen Gefäßen

Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3124359A1 (de)	1980-07-10	1982-08-26	Flocon Italiana s.r.l., 20121 Milano	Verfahren zur reparatur bzw. wiederherstellung von feuerfesten verschleissteilen von schieberverschluessen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE2165537A1 (de) *	1971-12-30	1973-07-19	Maximilianshuette Eisenwerk	Verfahren zur erhoehung der haltbarkeit und der wirtschaftlichkeit von ausgussoeffnungen an gefaessen zur aufnahme von fluessigem metall
AT344218B (de) *	1975-06-02	1978-07-10	Didier Werke Ag	Verschleissteile, insbesondere fuer schieberverschluesse an metallschmelze enthaltenden behaeltern
GB2060842A (en) *	1979-08-01	1981-05-07	Fichera E	Methods of repairing refractories for sliding valves and means for performing it
DE3120053A1 (de) *	1981-05-20	1982-12-09	Egon 5650 Solingen Evertz	Verfahren zur instandsetzung von schieberplatten
IT1142623B (it) *	1981-12-22	1986-10-08	Flocon Italiana	Procedimento per rigenerare una piastra mobile di un cassetto di colata di una siviera

1982
- 1982-11-23 DE DE3243305A patent/DE3243305C1/de not_active Expired
- 1982-12-21 SE SE8207319A patent/SE447458B/sv not_active IP Right Cessation
1983
- 1983-11-23 AT AT83111713T patent/ATE20837T1/de not_active IP Right Cessation
- 1983-11-23 EP EP83111713A patent/EP0110310B1/fr not_active Expired

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
DE3124359A1 (de)	1980-07-10	1982-08-26	Flocon Italiana s.r.l., 20121 Milano	Verfahren zur reparatur bzw. wiederherstellung von feuerfesten verschleissteilen von schieberverschluessen

Also Published As

Publication number	Publication date
EP0110310B1 (fr)	1986-07-23
SE8207319D0 (sv)	1982-12-21
SE8207319L (sv)	1984-05-24
SE447458B (sv)	1986-11-17
EP0110310A3 (en)	1984-09-26
ATE20837T1 (de)	1986-08-15
DE3243305C1 (de)	1989-02-23

Legal Events

Date	Code	Title	Description
1984-04-16	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
1984-06-13	AK	Designated contracting states	Designated state(s): AT BE FR GB IT NL
1984-07-25	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1984-09-26	AK	Designated contracting states	Designated state(s): AT BE FR GB IT NL
1985-02-20	17P	Request for examination filed	Effective date: 19841201
1986-06-07	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1986-07-23	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE FR GB IT NL
1986-07-23	REF	Corresponds to:	Ref document number: 20837 Country of ref document: AT Date of ref document: 19860815 Kind code of ref document: T
1986-10-17	ITF	It: translation for a ep patent filed
1986-12-05	ET	Fr: translation filed
1987-04-03	PLBI	Opposition filed	Free format text: ORIGINAL CODE: 0009260
1987-05-20	26	Opposition filed	Opponent name: DIDIER-WERKE AG Effective date: 19870327
1987-06-01	NLR1	Nl: opposition has been filed with the epo	Opponent name: DIDIER-WERKE AG
1988-12-05	PLBN	Opposition rejected	Free format text: ORIGINAL CODE: 0009273
1988-12-05	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: OPPOSITION REJECTED
1989-01-25	27O	Opposition rejected	Effective date: 19880904
1989-03-16	NLR2	Nl: decision of opposition
1990-11-30	ITTA	It: last paid annual fee
1991-09-27	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
1991-11-15	REG	Reference to a national code	Ref country code: FR Ref legal event code: RC
1991-11-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19911130 Year of fee payment: 9
1991-12-06	REG	Reference to a national code	Ref country code: FR Ref legal event code: DA
1992-01-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19920113 Year of fee payment: 9
1992-01-24	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19920124 Year of fee payment: 9
1992-11-23	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19921123 Ref country code: AT Effective date: 19921123
1993-06-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19930601
1993-07-16	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1993-07-21	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 19921123
1994-11-17	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19941117 Year of fee payment: 12
1995-11-21	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19951121 Year of fee payment: 13
1996-07-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Effective date: 19960731
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1996-11-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Effective date: 19961130
1997-05-31	BERE	Be: lapsed	Owner name: EVERTZ EGON Effective date: 19961130

Publication	Publication Date	Title
DE2627896C2 (de)	1984-07-12	Bodenausguß für einen Zwischenbehälter für flüssige Metalle
CH616869A5 (fr)	1980-04-30
DE2733665C2 (de)	1985-10-24	Auswechselbare Verschleißteile für Schiebeverschlüsse
DE3124359C2 (de)	1985-03-14	Verfahren zur Reparatur bzw. Wiederherstellung von feuerfesten Verschleißteilen von Schieberverschlüssen
EP0215789B1 (fr)	1988-03-02	Coulee ceramique
DE3878125T2 (de)	1993-05-27	Drehgiessduese fuer ein gefaess zum aufbewahren von geschmolzenem metall.
DE3614730C2 (fr)	1988-10-27
DE2745903A1 (de)	1978-04-13	Schlackentiegel
EP0105868A1 (fr)	1984-04-18	Four métallurgique ou récipient métallurgique
DE2548854A1 (de)	1977-05-05	Feuerfester stein mit einer durchlassoeffnung fuer fluessiges metall und verfahren zu dessen herstellung
EP0110310B1 (fr)	1986-07-23	Procédé de réparation de plaques pour fermeture coulissante
DE3433123C2 (de)	1986-11-27	Blasstein für metallurgische Pfannen und Verfahren zu seinem Einfügen in die Zustellung
DE2417489C3 (de)	1976-01-02	Ausguß für metallurgische Gefäße
DE2321946A1 (de)	1974-11-21	Verfahren zum instandsetzen von schlackenpfannen
DE3120053C2 (fr)	1991-04-18
DE3830871C1 (fr)	1989-11-02
DE19802207C2 (de)	2002-12-19	Schablone zur Auskleidung von Gießpfannen
DE4042203C2 (de)	2003-03-20	Schieberplatte für Schieberverschlüsse von metallurgischen Gefäßen
DE102004050702B3 (de)	2006-02-02	Schieberplatte
DE3634447C1 (en)	1988-02-11	Refractory shaped body, in particular a plate for outlet closures
EP0358115A2 (fr)	1990-03-14	Pierre terminale en deux parties
DE2223264C3 (de)	1974-01-10	Gußeiserne Bodenplatte für Kokillen
DE2527919A1 (de)	1976-01-29	Vorrichtung zum formen der moertel- fugendichtung zwischen einem kassettenschieberverschluss und einem gefaess fuer metallische schmelzen
DE2025131C3 (de)	1973-04-19	Vorrichtung zum verankern von decken oder waenden von feuerungsraumen an einem traeger
AT343158B (de)	1978-05-10	Rohrformiges auskleidungselement