EP2090666A1 - Modifikationsverfahren der grafitischen Phase des Gusseisens von der Lamellenstruktur in die Kugel- oder Vermikulärstruktur - Google Patents
Modifikationsverfahren der grafitischen Phase des Gusseisens von der Lamellenstruktur in die Kugel- oder Vermikulärstruktur Download PDFInfo
- Publication number
- EP2090666A1 EP2090666A1 EP08392012A EP08392012A EP2090666A1 EP 2090666 A1 EP2090666 A1 EP 2090666A1 EP 08392012 A EP08392012 A EP 08392012A EP 08392012 A EP08392012 A EP 08392012A EP 2090666 A1 EP2090666 A1 EP 2090666A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- spheroidal
- vermicular
- agents
- graphite
- iron
- 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.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 11
- 230000000051 modifying effect Effects 0.000 title claims abstract description 6
- 238000005266 casting Methods 0.000 title claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 14
- 239000010439 graphite Substances 0.000 claims abstract description 14
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 11
- 239000000956 alloy Substances 0.000 claims abstract description 11
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 11
- 239000010936 titanium Substances 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 229910052742 iron Inorganic materials 0.000 claims abstract description 10
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 9
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 230000004048 modification Effects 0.000 claims abstract description 6
- 238000012986 modification Methods 0.000 claims abstract description 6
- 230000008569 process Effects 0.000 claims abstract description 6
- 238000011081 inoculation Methods 0.000 claims abstract description 4
- 229910052746 lanthanum Inorganic materials 0.000 claims abstract description 4
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 claims abstract description 4
- 230000009471 action Effects 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 5
- 235000000396 iron Nutrition 0.000 claims description 5
- 229910052788 barium Inorganic materials 0.000 claims description 4
- 239000002054 inoculum Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 claims description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 claims description 3
- 229910052747 lanthanoid Inorganic materials 0.000 claims description 2
- 150000002602 lanthanoids Chemical class 0.000 claims description 2
- 239000000155 melt Substances 0.000 claims description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims 1
- 239000011575 calcium Substances 0.000 claims 1
- 238000005259 measurement Methods 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 238000005056 compaction Methods 0.000 abstract 2
- 239000011777 magnesium Substances 0.000 description 15
- 229910052749 magnesium Inorganic materials 0.000 description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000012809 post-inoculation Methods 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 229910000861 Mg alloy Inorganic materials 0.000 description 4
- 229910001122 Mischmetal Inorganic materials 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 229910001021 Ferroalloy Inorganic materials 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 230000009257 reactivity Effects 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- XWHPIFXRKKHEKR-UHFFFAOYSA-N iron silicon Chemical compound [Si].[Fe] XWHPIFXRKKHEKR-UHFFFAOYSA-N 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 241001342584 Monophyllus Species 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 229910001069 Ti alloy Inorganic materials 0.000 description 1
- UGACIEPFGXRWCH-UHFFFAOYSA-N [Si].[Ti] Chemical compound [Si].[Ti] UGACIEPFGXRWCH-UHFFFAOYSA-N 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000001540 azides Chemical class 0.000 description 1
- IQONKZQQCCPWMS-UHFFFAOYSA-N barium lanthanum Chemical compound [Ba].[La] IQONKZQQCCPWMS-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002603 lanthanum Chemical class 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000001247 metal acetylides Chemical class 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
- C21C1/105—Nodularising additive agents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
- B22D1/007—Treatment of the fused masses in the supply runners
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
- C21C7/0056—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00 using cored wires
Definitions
- the gradual modification of the graphite lamellae from the starting cast iron to the so-called nodular spheroidal shape is based on treatments with magnesium, more or less with the rare earths which are complementary, in the form of nickel alloys. or iron - silicon.
- the object of the present invention is a process which characterizes the fact that the action of making the graphite spheroidal and the post inoculation of the cast takes place by resorting to a single animated wire which brings the bath, not only magnesium or other elements or a set of elements capable of modifying the graphite, but also, a weighted content of rare earth alloys and at least one element of the group of earth alkalis, with or without the presence of derivatives of lanthanum or titanium, where their only reactivities or solubility, ensure a progressive and complete action to make spheroidal graphitic phase present in the cast iron treated, as well as a suitable post inoculation.
- Magnesium is certainly the most reactive element, with the highest vapor pressure, a parameter that conditions the permanence over time of an optimal content of "magnesium residue".
- Ce-MM ensures the spheroids an extension of their stability that adapt to the operative times.
- Inoculation in general terms, lends itself to different alternatives, which do not differ too much from conventional alternatives, and which range from iron-silicon to a set of ferroalloys, more or less sophisticated and where their synergies amplify and intensify the effectiveness of inoculation.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| MC2543A MC200112A1 (fr) | 2007-12-05 | 2007-12-05 | Procédé de modification de la phase graphitique dela fonte de la forme lamellaire à la forme sphéro ïdale ou vermiculaire à travers un monophylle animé |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2090666A1 true EP2090666A1 (de) | 2009-08-19 |
Family
ID=39683954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08392012A Withdrawn EP2090666A1 (de) | 2007-12-05 | 2008-10-20 | Modifikationsverfahren der grafitischen Phase des Gusseisens von der Lamellenstruktur in die Kugel- oder Vermikulärstruktur |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP2090666A1 (de) |
| MC (1) | MC200112A1 (de) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205856A (en) * | 1991-02-14 | 1993-04-27 | Skw Trostberg Aktiengesellschaft | Inoculation wire |
| EP0816522A1 (de) * | 1996-06-25 | 1998-01-07 | Pechiney Electrometallurgie | Ferrolegierung für die Impfung von Kugelgraphitgusseisen |
| DE19916235A1 (de) * | 1999-03-01 | 2000-09-07 | Odermath Stahlwerkstechnik | Fülldraht zur Behandlung von Schmelzen mittels Drahtinjektion |
-
2007
- 2007-12-05 MC MC2543A patent/MC200112A1/fr unknown
-
2008
- 2008-10-20 EP EP08392012A patent/EP2090666A1/de not_active Withdrawn
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5205856A (en) * | 1991-02-14 | 1993-04-27 | Skw Trostberg Aktiengesellschaft | Inoculation wire |
| EP0816522A1 (de) * | 1996-06-25 | 1998-01-07 | Pechiney Electrometallurgie | Ferrolegierung für die Impfung von Kugelgraphitgusseisen |
| DE19916235A1 (de) * | 1999-03-01 | 2000-09-07 | Odermath Stahlwerkstechnik | Fülldraht zur Behandlung von Schmelzen mittels Drahtinjektion |
Non-Patent Citations (2)
| Title |
|---|
| BEST K J: "BEHANDLUNG VON GUSSEISENSCHMELZEN MIT MAGNESIUMBEHANDLUNGSDRAHT UND IMPFDRAHT ZUR ERZEUGUNG VON SERIENTEILEN AUS GUSSEISEN MIT KUGELGRAPHIT UND MIT VERMICULARGRAPHIT", GIESSEREI, GIESSEREI VERLAG, DUSSELDORF, DE, vol. 76, no. 3, 6 February 1989 (1989-02-06), pages 69 - 73, XP000013180, ISSN: 0016-9765 * |
| BEST K J: "METALLURGISCHE BEHANDLUNG VON GUSSEISENSCHMELZEN MITTELS IMPFDRAHT UND MAGNESIUMBEHANDLUNGSDRAHT//METALLURGICAL TREATMENT OF MOLTEN IRON BY MEANS OF INOCULANT WIRE AND MAGNESIUM TREATMENT WIRE", GIESSEREIPRAXIS, FACHVERLAG SCHIELE UND SCHON GMBH, BERLIN, DE, no. 21, 6 November 1983 (1983-11-06), pages 313 - 320, XP009055975, ISSN: 0016-9781 * |
Also Published As
| Publication number | Publication date |
|---|---|
| MC200112A1 (fr) | 2008-07-02 |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| AX | Request for extension of the european patent |
Extension state: AL BA MK RS |
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| 17P | Request for examination filed |
Effective date: 20091112 |
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| 17Q | First examination report despatched |
Effective date: 20100104 |
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| AKX | Designation fees paid |
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| STAA | Information on the status of an ep patent application or granted ep patent |
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| 18D | Application deemed to be withdrawn |
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