EP0069680A1 - Verfahren zur Kornverfeinerung von primärem Silizium aus übereutektischen Aluminium-Siliziumlegierungen - Google Patents

Verfahren zur Kornverfeinerung von primärem Silizium aus übereutektischen Aluminium-Siliziumlegierungen Download PDF

Info

Publication number: EP0069680A1
Authority: EP; European Patent Office
Prior art keywords: magnesium; silicon; alloys; refining; phosphorus
Prior art date: 1981-04-15
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

EP82420053A

Other languages

English (en)

French (fr)

Other versions

EP0069680B1 (de

Inventor

Jean Morice

Jean Charbonnier

Bernard Forest

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.)

Rio Tinto France SAS

Original Assignee

Aluminium Pechiney SA

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.)

1981-04-15

Filing date

1982-04-14

Publication date

1983-01-12

1982-04-14 Application filed by Aluminium Pechiney SA filed Critical Aluminium Pechiney SA

1983-01-12 Publication of EP0069680A1 publication Critical patent/EP0069680A1/de

1985-07-03 Application granted granted Critical

1985-07-03 Publication of EP0069680B1 publication Critical patent/EP0069680B1/de

Status Expired legal-status Critical Current

Links

229910052710 silicon Inorganic materials 0.000 title claims abstract description 16
239000010703 silicon Substances 0.000 title claims abstract description 16
238000007670 refining Methods 0.000 title claims abstract description 15
238000000034 method Methods 0.000 title claims abstract description 7
230000008569 process Effects 0.000 title claims description 4
229910000789 Aluminium-silicon alloy Inorganic materials 0.000 title abstract 2
239000011777 magnesium Substances 0.000 claims abstract description 22
229910052749 magnesium Inorganic materials 0.000 claims abstract description 22
FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 20
229910045601 alloy Inorganic materials 0.000 claims abstract description 17
239000000956 alloy Substances 0.000 claims abstract description 17
OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims abstract description 14
229910052698 phosphorus Inorganic materials 0.000 claims abstract description 14
239000011574 phosphorus Substances 0.000 claims abstract description 14
238000005266 casting Methods 0.000 claims abstract description 5
CSDREXVUYHZDNP-UHFFFAOYSA-N alumanylidynesilicon Chemical compound [Al].[Si] CSDREXVUYHZDNP-UHFFFAOYSA-N 0.000 claims description 5
229910000676 Si alloy Inorganic materials 0.000 claims description 4
239000013078 crystal Substances 0.000 description 16
XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 13
230000000694 effects Effects 0.000 description 8
230000005496 eutectics Effects 0.000 description 5
238000004519 manufacturing process Methods 0.000 description 3
238000007711 solidification Methods 0.000 description 3
230000008023 solidification Effects 0.000 description 3
PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
230000009471 action Effects 0.000 description 2
230000008901 benefit Effects 0.000 description 2
238000002485 combustion reaction Methods 0.000 description 2
238000001816 cooling Methods 0.000 description 2
230000018109 developmental process Effects 0.000 description 2
229910052751 metal Inorganic materials 0.000 description 2
239000002184 metal Substances 0.000 description 2
230000005070 ripening Effects 0.000 description 2
229910000838 Al alloy Inorganic materials 0.000 description 1
229910021364 Al-Si alloy Inorganic materials 0.000 description 1
VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
SNAAJJQQZSMGQD-UHFFFAOYSA-N aluminum magnesium Chemical compound [Mg].[Al] SNAAJJQQZSMGQD-UHFFFAOYSA-N 0.000 description 1
230000015572 biosynthetic process Effects 0.000 description 1
229910052793 cadmium Inorganic materials 0.000 description 1
BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
239000003795 chemical substances by application Substances 0.000 description 1
229910052804 chromium Inorganic materials 0.000 description 1
239000011651 chromium Substances 0.000 description 1
230000000295 complement effect Effects 0.000 description 1
150000001875 compounds Chemical class 0.000 description 1
229910052802 copper Inorganic materials 0.000 description 1
239000010949 copper Substances 0.000 description 1
238000004090 dissolution Methods 0.000 description 1
230000002349 favourable effect Effects 0.000 description 1
230000035784 germination Effects 0.000 description 1
PNDPGZBMCMUPRI-UHFFFAOYSA-N iodine Chemical compound II PNDPGZBMCMUPRI-UHFFFAOYSA-N 0.000 description 1
239000011133 lead Substances 0.000 description 1
239000007788 liquid Substances 0.000 description 1
229910001338 liquidmetal Inorganic materials 0.000 description 1
239000000314 lubricant Substances 0.000 description 1
150000002680 magnesium Chemical class 0.000 description 1
230000014759 maintenance of location Effects 0.000 description 1
WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
239000011159 matrix material Substances 0.000 description 1
230000008018 melting Effects 0.000 description 1
238000002844 melting Methods 0.000 description 1
QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
229910052753 mercury Inorganic materials 0.000 description 1
229910052752 metalloid Inorganic materials 0.000 description 1
150000002738 metalloids Chemical class 0.000 description 1
239000000203 mixture Substances 0.000 description 1
230000004048 modification Effects 0.000 description 1
238000012986 modification Methods 0.000 description 1
229910052750 molybdenum Inorganic materials 0.000 description 1
239000011733 molybdenum Substances 0.000 description 1
238000000465 moulding Methods 0.000 description 1
229910052759 nickel Inorganic materials 0.000 description 1
239000012071 phase Substances 0.000 description 1
239000000843 powder Substances 0.000 description 1
238000002360 preparation method Methods 0.000 description 1
230000009467 reduction Effects 0.000 description 1
229910052709 silver Inorganic materials 0.000 description 1
239000004332 silver Substances 0.000 description 1
239000007790 solid phase Substances 0.000 description 1
229910052717 sulfur Inorganic materials 0.000 description 1
239000011593 sulfur Substances 0.000 description 1
238000009864 tensile test Methods 0.000 description 1
229910052718 tin Inorganic materials 0.000 description 1
239000011135 tin Substances 0.000 description 1
WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
229910052721 tungsten Inorganic materials 0.000 description 1
239000010937 tungsten Substances 0.000 description 1
238000007514 turning Methods 0.000 description 1
229910052725 zinc Inorganic materials 0.000 description 1
239000011701 zinc Substances 0.000 description 1

Classifications

- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/02—Alloys based on aluminium with silicon as the next major constituent
- C22C21/04—Modified aluminium-silicon alloys

Definitions

the present invention relates to a process for refining the primary silicon of the hypereutectic aluminum-silicon alloys.
aluminum-silicon alloys are classified into three groups according to their content of addition element. Alloys containing about 12.5% by weight of Si are said to be eutectic; those which contain a quantity lower or higher than this value are qualified respectively as hypo or hypereutectics.
hypereutectic alloys which, during their development, successively give, on cooling, a solid phase containing essentially crystals of primary silicon then the aluminum-silicon eutectic.
Such alloys find their application in particular during the manufacture by molding of liners of internal combustion engines, because such a structure of hard primary silicon crystals embedded in a softer eutectic matrix is particularly capable of forming a surface having favorable microporosities. lubricant retention and friction behavior. However, in order to obtain suitable results, these crystals must have dimensions not exceeding 100 ⁇ m.
the present invention relates to a process for refining the primary silicon of hypereutectic aluminum-silicon alloys which have undergone a pre-refining with a phosphorus-based product, characterized in that this alloy is added a magnesium product immediately before pouring it.
the alloy being prepared in a conventional manner and refined by adding 50 to 1000 ppm of phosphorus or of a corresponding quantity of one of its derivatives, we therefore add to it magnesium.
the latter may be in the elementary state or of aluminum-magnesium master alloys and in the form of turnings, powder or even massive pieces of dimensions compatible with a sufficiently high speed of dissolution.
the quantity used is such that it makes it possible to reach, in the final alloy, a magnesium content of 500 ppm but, in the case of the production of alloys containing magnesium in their composition, the quantity can be added necessary to achieve the desired content.
the addition takes place at a time as close as possible to that of the casting and in any case, less than 30 minutes before solidification, because, beyond this time, the refining effect is fades and becomes practically zero.
the addition is made less than five minutes before casting in order to be in the optimum ripening conditions.
a metal bath of AS17 was divided into three separate volumes to which were added to each different amounts of phosphorus, between 10 and 50 ppm. A sample was taken from each of them, which was solidified in thirteen seconds and whose structure was examined: the size of the primary silicon crystals observed was 20 - 40 - 60 ⁇ m.
magnesium has the effect of dividing the size of the primary silicon grains by a factor of approximately 2.
the present invention finds its application in the refining of aluminum alloys hypereutecti q ues and is of great interest, in particular ment when these alloys are intended for the manufacture of liners of internal combustion engines or of any other part subjected to friction.

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Manufacture And Refinement Of Metals (AREA)
Silicon Compounds (AREA)
Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Continuous Casting (AREA)
Manufacture Of Metal Powder And Suspensions Thereof (AREA)

EP19820420053 1981-04-15 1982-04-14 Verfahren zur Kornverfeinerung von primärem Silizium aus übereutektischen Aluminium-Siliziumlegierungen Expired EP0069680B1 (de)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
FR8107856		1981-04-14
FR8107856A FR2504154B1 (fr)	1981-04-15	1981-04-15	Procede d'affinage du silicium primaire des aluminium-silicium hypereutectiques

Publications (2)

Publication Number	Publication Date
EP0069680A1 true EP0069680A1 (de)	1983-01-12
EP0069680B1 EP0069680B1 (de)	1985-07-03

Family

ID=9257585

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP19820420053 Expired EP0069680B1 (de)	1981-04-15	1982-04-14	Verfahren zur Kornverfeinerung von primärem Silizium aus übereutektischen Aluminium-Siliziumlegierungen

Country Status (7)

Country	Link
EP (1)	EP0069680B1 (de)
JP (1)	JPS57177943A (de)
CA (1)	CA1179507A (de)
DE (1)	DE3264528D1 (de)
DK (1)	DK164482A (de)
FR (1)	FR2504154B1 (de)
IE (1)	IE52548B1 (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0539328A1 (de) *	1991-10-23	1993-04-28	ALUMINIUM RHEINFELDEN GmbH	Verfahren zur Kornfeinung von Aluminium-Gusslegierungen, insbesondere Aluminium-Silizium-Gusslegierungen
WO1995031578A1 (en) *	1994-05-12	1995-11-23	Anglo Blackwells Limited	A method for manufacturing a phosphorus containing composition
WO2016179733A1 (zh) *	2015-05-12	2016-11-17	苏州列治埃盟新材料技术转移有限公司	一种中间合金材料及其制备方法

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP5655953B2 (ja) *	2011-10-11	2015-01-21	日本軽金属株式会社	Ａｌ−Ｆｅ−Ｓｉ系化合物及び初晶Ｓｉを微細化させたアルミニウム合金の製造方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1139009A (fr) *	1955-10-06	1957-06-24	Aluminiumwerke Nuernberg Gmbh	Procédé d'affinage des grains applicable aux alliages hypereutectiques aluminiumsilicium
DE1139656B (de) *	1955-10-08	1962-11-15	Metallgesellschaft Ag	Verfahren zur Kornfeinung des primaeren Siliziums in uebereutektischen Aluminium-Silizium-Legierungen

1981
- 1981-04-15 FR FR8107856A patent/FR2504154B1/fr not_active Expired
1982
- 1982-04-13 JP JP57061663A patent/JPS57177943A/ja active Granted
- 1982-04-13 DK DK164482A patent/DK164482A/da not_active IP Right Cessation
- 1982-04-14 DE DE8282420053T patent/DE3264528D1/de not_active Expired
- 1982-04-14 EP EP19820420053 patent/EP0069680B1/de not_active Expired
- 1982-04-14 CA CA000400963A patent/CA1179507A/fr not_active Expired
- 1982-04-14 IE IE86182A patent/IE52548B1/en unknown

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
FR1139009A (fr) *	1955-10-06	1957-06-24	Aluminiumwerke Nuernberg Gmbh	Procédé d'affinage des grains applicable aux alliages hypereutectiques aluminiumsilicium
DE1139656B (de) *	1955-10-08	1962-11-15	Metallgesellschaft Ag	Verfahren zur Kornfeinung des primaeren Siliziums in uebereutektischen Aluminium-Silizium-Legierungen

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP0539328A1 (de) *	1991-10-23	1993-04-28	ALUMINIUM RHEINFELDEN GmbH	Verfahren zur Kornfeinung von Aluminium-Gusslegierungen, insbesondere Aluminium-Silizium-Gusslegierungen
US5250125A (en) *	1991-10-23	1993-10-05	Alusuisse-Lonza Services Ltd.	Process for grain refinement of aluminium casting alloys, in particular aluminium/silicon casting alloys
CH684800A5 (de) *	1991-10-23	1994-12-30	Rheinfelden Aluminium Gmbh	Verfahren zur Kornfeinung von Aluminium-Gusslegierungen, insbesondere Aluminium-Silizium-Gusslegierungen.
WO1995031578A1 (en) *	1994-05-12	1995-11-23	Anglo Blackwells Limited	A method for manufacturing a phosphorus containing composition
WO2016179733A1 (zh) *	2015-05-12	2016-11-17	苏州列治埃盟新材料技术转移有限公司	一种中间合金材料及其制备方法

Also Published As

Publication number	Publication date
EP0069680B1 (de)	1985-07-03
JPS57177943A (en)	1982-11-01
JPS6155576B2 (de)	1986-11-28
DK164482A (da)	1982-10-16
FR2504154A1 (fr)	1982-10-22
IE52548B1 (en)	1987-12-09
DE3264528D1 (en)	1985-08-08
FR2504154B1 (fr)	1985-09-06
IE820861L (en)	1982-10-15
CA1179507A (fr)	1984-12-18

Legal Events

Date	Code	Title	Description
1982-11-12	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
1983-01-12	AK	Designated contracting states	Designated state(s): BE CH DE GB IT LI LU NL
1983-04-06	17P	Request for examination filed	Effective date: 19830127
1984-07-11	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: ALUMINIUM PECHINEY
1985-02-08	ITF	It: translation for a ep patent filed
1985-05-04	GRAA	(expected) grant	Free format text: ORIGINAL CODE: 0009210
1985-07-03	AK	Designated contracting states	Designated state(s): BE CH DE GB IT LI LU NL
1985-08-08	REF	Corresponds to:	Ref document number: 3264528 Country of ref document: DE Date of ref document: 19850808
1986-04-30	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: 19860430
1986-05-12	PLBE	No opposition filed within time limit	Free format text: ORIGINAL CODE: 0009261
1986-05-12	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT
1986-07-02	26N	No opposition filed
1987-04-30	PGFP	Annual fee paid to national office [announced via postgrant information from national office to epo]	Ref country code: NL Payment date: 19870430 Year of fee payment: 6
1989-04-14	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: GB Effective date: 19890414
1989-04-30	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: LI Effective date: 19890430 Ref country code: CH Effective date: 19890430 Ref country code: BE Effective date: 19890430
1989-10-31	BERE	Be: lapsed	Owner name: ALUMINIUM PECHINEY Effective date: 19890430
1989-11-01	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: NL Effective date: 19891101
1989-12-13	GBPC	Gb: european patent ceased through non-payment of renewal fee
1989-12-18	NLV4	Nl: lapsed or anulled due to non-payment of the annual fee
1989-12-29	REG	Reference to a national code	Ref country code: CH Ref legal event code: PL
1990-01-03	PG25	Lapsed in a contracting state [announced via postgrant information from national office to epo]	Ref country code: DE Effective date: 19900103

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