EP0457257A2 - Procédé pour influencer la structure de la zone marginale d'un alliage durant sa solidificaction dans un moule à sable et utilisation de ce procédé - Google Patents

Procédé pour influencer la structure de la zone marginale d'un alliage durant sa solidificaction dans un moule à sable et utilisation de ce procédé Download PDF

Info

Publication number: EP0457257A2
Authority: EP; European Patent Office
Prior art keywords: influencing; freezing process; solution; aqueous; agent influencing
Prior art date: 1990-05-17
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

EP91107754A

Other languages

German (de)

English (en)

Other versions

EP0457257A3 (en

EP0457257B1 (fr

Inventor

Werner Menk

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.)

Georg Fischer AG

Original Assignee

Georg Fischer AG

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.)

1990-05-17

Filing date

1991-05-14

Publication date

1991-11-21

1991-05-14 Application filed by Georg Fischer AG filed Critical Georg Fischer AG

1991-11-21 Publication of EP0457257A2 publication Critical patent/EP0457257A2/fr

1992-02-26 Publication of EP0457257A3 publication Critical patent/EP0457257A3/de

1996-09-04 Application granted granted Critical

1996-09-04 Publication of EP0457257B1 publication Critical patent/EP0457257B1/fr

2011-05-14 Anticipated expiration legal-status Critical

Status Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns

Definitions

the present invention relates to a method for influencing the structure of crystallizing liquids in a container and the use of the method.
the melting point of the entire amount of liquid is reduced.
the crystallization is influenced in such a way that it takes place over the entire volume at a lower temperature.
the object of the invention is to propose a method by means of which the partial influencing of a predetermined liquid volume, in particular the edge zone thereof, is possible.
FIG. 1 shows the experimental setup in which an intermediate wall 1 separates the stearic acid into two areas. The partition is saturated with antimony salt. The area of influence 2 of the solution can be clearly seen.
Numeral 3 denotes the crystallized stearic acid.
the surface of a container in the form of a sand mold was sprayed with an aqueous solution of an antimony compound and then brought into contact with the surface of a liquid metal.
the active ingredient diffusing into the liquid influenced the crystallization in such a way that an edge zone with changed properties was created.
the carbon diffusion was hindered, with the result that a part of the carbon contained in the liquid metal was not excreted in the form of graphite but as cementite (Fe3C). This led to increased wear resistance in the crystallized zone.

Landscapes

Engineering & Computer Science (AREA)
Mechanical Engineering (AREA)
Mold Materials And Core Materials (AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Casting Devices For Molds (AREA)
Chemically Coating (AREA)
Manufacture Of Metal Powder And Suspensions Thereof (AREA)

EP91107754A 1990-05-17 1991-05-14 Procédé pour influencer la structure de la zone marginale d'un alliage durant sa solidificaction dans un moule à sable et utilisation de ce procédé Expired - Lifetime EP0457257B1 (fr)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
CH1676/90A CH679986A5 (fr)	1990-05-17	1990-05-17
CH1676/90		1990-05-17

Publications (3)

Publication Number	Publication Date
EP0457257A2 true EP0457257A2 (fr)	1991-11-21
EP0457257A3 EP0457257A3 (en)	1992-02-26
EP0457257B1 EP0457257B1 (fr)	1996-09-04

Family

ID=4215994

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP91107754A Expired - Lifetime EP0457257B1 (fr)	1990-05-17	1991-05-14	Procédé pour influencer la structure de la zone marginale d'un alliage durant sa solidificaction dans un moule à sable et utilisation de ce procédé

Country Status (5)

Country	Link
EP (1)	EP0457257B1 (fr)
AT (1)	ATE142134T1 (fr)
AU (1)	AU646863B2 (fr)
CH (1)	CH679986A5 (fr)
DE (1)	DE59108129D1 (fr)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US3113360A (en) *	1961-04-14	1963-12-10	Amsted Ind Inc	Mold wash

1990
- 1990-05-17 CH CH1676/90A patent/CH679986A5/de not_active IP Right Cessation
1991
- 1991-05-14 DE DE59108129T patent/DE59108129D1/de not_active Expired - Fee Related
- 1991-05-14 EP EP91107754A patent/EP0457257B1/fr not_active Expired - Lifetime
- 1991-05-14 AT AT91107754T patent/ATE142134T1/de not_active IP Right Cessation
- 1991-05-15 AU AU77098/91A patent/AU646863B2/en not_active Ceased

Also Published As

Publication number	Publication date
AU646863B2 (en)	1994-03-10
AU7709891A (en)	1991-11-21
DE59108129D1 (de)	1996-10-10
EP0457257A3 (en)	1992-02-26
EP0457257B1 (fr)	1996-09-04
CH679986A5 (fr)	1992-05-29
ATE142134T1 (de)	1996-09-15

Legal Events

Date	Code	Title	Description
1991-10-04	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
1991-11-21	17P	Request for examination filed	Effective date: 19910514
1991-11-21	AK	Designated contracting states	Kind code of ref document: A2 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE
1992-01-07	PUAL	Search report despatched	Free format text: ORIGINAL CODE: 0009013
1992-02-26	AK	Designated contracting states	Kind code of ref document: A3 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE
1995-05-17	17Q	First examination report despatched	Effective date: 19950404
1996-01-25	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1996-02-29	GRAH	Despatch of communication of intention to grant a patent	Free format text: ORIGINAL CODE: EPIDOS IGRA
1996-07-19	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1996-09-04	AK	Designated contracting states	Kind code of ref document: B1 Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE
1996-09-04	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19960904 Ref country code: ES Free format text: THE PATENT HAS BEEN ANNULLED BY A DECISION OF A NATIONAL AUTHORITY Effective date: 19960904 Ref country code: NL Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 19960904 Ref country code: DK Effective date: 19960904 Ref country code: IT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT;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: 19960904
1996-09-04	REF	Corresponds to:	Ref document number: 142134 Country of ref document: AT Date of ref document: 19960915 Kind code of ref document: T
1996-09-25	GBT	Gb: translation of ep patent filed (gb section 77(6)(a)/1977)	Effective date: 19960904
1996-10-10	REF	Corresponds to:	Ref document number: 59108129 Country of ref document: DE Date of ref document: 19961010
1996-11-29	ET	Fr: translation filed
1996-12-04	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: SE Effective date: 19961204
1997-02-03	NLV1	Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
1997-05-31	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: 19970531
1997-07-11	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1997-07-11	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1997-08-27	26N	No opposition filed
1999-04-13	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: GB Payment date: 19990413 Year of fee payment: 9
1999-04-19	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: FR Payment date: 19990419 Year of fee payment: 9
1999-04-20	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: DE Payment date: 19990420 Year of fee payment: 9
1999-04-21	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: CH Payment date: 19990421 Year of fee payment: 9
1999-04-22	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: AT Payment date: 19990422 Year of fee payment: 9
1999-04-26	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: BE Payment date: 19990426 Year of fee payment: 9
2000-05-14	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: AT Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000514 Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000514
2000-05-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: BE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000531 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000531 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20000531
2000-11-30	BERE	Be: lapsed	Owner name: GEORG FISCHER A.G. Effective date: 20000531
2001-01-03	GBPC	Gb: european patent ceased through non-payment of renewal fee	Effective date: 20000514
2001-01-15	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
2001-01-31	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010131
2001-03-02	REG	Reference to a national code	Ref country code: FR Ref legal event code: ST
2001-05-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20010501

Publication	Publication Date	Title
DE69515164T2 (de)	2000-07-13	Verfahren zur Herstellung breiartiger Metallschmelze zum Giessen
DE2518367C3 (de)	1979-04-26	Verfahren und Gießform zum Herstellen von Gußeisen mit kugelförmigem Graphit
DE2410109C3 (de)	1985-10-24	Vorrichtung zur Herstellung von Gußeisen mit Kugelgraphit
EP0246578A1 (fr)	1987-11-25	Procédé de traitement des surfaces d'un échangeur thermique
DE69404933T2 (de)	1998-03-19	Mit Eisenzink-Aluminium-Legierung beschichteter Stahldraht und Verfahren zur Herstellung
DE2856466C2 (de)	1986-01-23	Verfahren zur Verfestigung hochradioaktive Abfallstoffe enthaltender, als Granalien oder als Pulver vorliegender Glasteilchen in einer Metallmatrix
DE2217897A1 (de)	1972-11-02	Vorlegierungen für Aluminiumlegierungen und Verfahren zu deren Herstellung
DE2207394A1 (de)	1973-08-23	Elektrisches kontaktelement und verfahren zur herstellung desselben
EP0457257A2 (fr)	1991-11-21	Procédé pour influencer la structure de la zone marginale d'un alliage durant sa solidificaction dans un moule à sable et utilisation de ce procédé
DE2049337C3 (de)	1974-06-12	Verfahren zur Herstellung einer beschichteten eisenhaltigen Unterlage
DE3008358C2 (de)	1981-07-09	Verwendung von aus Aluminiumgußlegierungen und Aluminiumknetlegierungen vermischten Altschrotten zur Herstllung von Walzhalbzeugen
DE823778C (de)	1951-12-06	Verfahren und Vorrichtung zum ununterbrochenen Giessen von Leicht- und Schwermetallen, insbesondere von Zink
DE4033182C2 (fr)	1992-02-13
DE112016007049T5 (de)	2019-03-28	GIEßLEHRE UND GIEßVERFAHREN UNTER VERWENDUNG DERSELBEN
DE2341084B2 (de)	1977-02-10	Verwendung einer zink als hauptbestandteil enthaltenden legierung
DE10246887A1 (de)	2004-04-22	Vorrichtung und Verfahren zur Herstellung von Verbundmaterialbändern
DE2829372A1 (de)	1979-01-18	Verfahren zum herstellen von yttrium- metall und von dessen legierungen
DE3910776A1 (de)	1989-11-23	Verfahren zur behandlung von gusseisenschmelzen in einer offenen pfanne mittels reinmagnesium
DE358542C (de)	1922-09-13	Verfahren zur Herstellung von Metallegierungen und zum Raffinieren von Metallen und Legierungen
DE3419406C2 (de)	1986-11-06	Verfahren zum Herstellen von Verschleißkörpern
DE387992C (de)	1924-01-07	Herstellung von Schrot
DE10338570B4 (de)	2005-07-14	Verfahren zur Beschichtung eines metallischen Bauteils
DE2251522A1 (de)	1974-04-25	Stahlstrangguss mit innenkuehlung
DE475594C (de)	1929-04-27	Verfahren zur Herstellung von Ventilsteuerungsknaggen durch Verbundguss
DE319734C (de)	1920-03-11	Verfahren zur Herstellung von zinkhaltigen Schutzueberzuegen auf Metallgegenstaenden