EP1270747A2 - La fonte nodulaire avec addition de Bore - Google Patents
La fonte nodulaire avec addition de Bore Download PDFInfo
- Publication number
- EP1270747A2 EP1270747A2 EP02006104A EP02006104A EP1270747A2 EP 1270747 A2 EP1270747 A2 EP 1270747A2 EP 02006104 A EP02006104 A EP 02006104A EP 02006104 A EP02006104 A EP 02006104A EP 1270747 A2 EP1270747 A2 EP 1270747A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cast iron
- products
- alloy
- ductile
- iron alloy
- 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.)
- Granted
Links
- 229910001141 Ductile iron Inorganic materials 0.000 title claims abstract description 25
- 229910052796 boron Inorganic materials 0.000 title claims description 7
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 title claims description 6
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 31
- 239000000956 alloy Substances 0.000 claims abstract description 31
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 19
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 7
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 6
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 6
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 6
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 229910052802 copper Inorganic materials 0.000 claims abstract description 5
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 5
- 238000005266 casting Methods 0.000 claims description 15
- 238000009863 impact test Methods 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- 230000000737 periodic effect Effects 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 claims description 2
- 238000000137 annealing Methods 0.000 claims description 2
- 238000005422 blasting Methods 0.000 claims description 2
- 239000000470 constituent Substances 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 230000002427 irreversible effect Effects 0.000 claims 3
- 238000002360 preparation method Methods 0.000 claims 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 abstract 1
- 239000000725 suspension Substances 0.000 description 7
- 239000011777 magnesium Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 238000003677 abuse test Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000010451 perlite Substances 0.000 description 1
- 235000019362 perlite Nutrition 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011593 sulfur 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
- C22C37/00—Cast-iron alloys
- C22C37/04—Cast-iron alloys containing spheroidal graphite
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D5/00—Heat treatments of cast-iron
- C21D5/02—Heat treatments of cast-iron improving the malleability of grey cast-iron
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C37/00—Cast-iron alloys
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
- C21D1/30—Stress-relieving
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D7/00—Modifying the physical properties of iron or steel by deformation
- C21D7/02—Modifying the physical properties of iron or steel by deformation by cold working
- C21D7/04—Modifying the physical properties of iron or steel by deformation by cold working of the surface
- C21D7/06—Modifying the physical properties of iron or steel by deformation by cold working of the surface by shot-peening or the like
Definitions
- the invention relates to a nodular cast iron alloy for cast iron products with plastic ductility, the ductile iron alloy being non-iron components at least the elements C, Si, Mn, Cu, Mg, S and as Additions of one or more elements from Group IIIb of the Periodic table contains.
- motor vehicle ductile iron alloys are used for the Production of castings that have to withstand high impact loads For example, wishbone, as parts of the suspension of the driven Wheels that need to remain intact even after an accident.
- the castings may be deformed in the so-called crash test, but not break.
- Commercially available gray cast alloys tend to break when strong Blows are exposed.
- a process for the production of ductile iron alloys with product inclusions is known, which are plastically deformed during the machining of the products produced.
- the plastically deformable inclusions serve as a lubricant during machining.
- the inclusions consist of about 50% SiO 2 , 25% CaO, 15% MgO and 10% Al 2 O 3 .
- the base alloy is made low in sulfur and deoxygenated with a reagent containing CaC 2 , CaO, Ca, Al and Mg prior to the actual treatment with magnesium. A metal analysis of the products thus produced is not disclosed.
- a nodular cast iron alloy for Cast iron products having a plastic deformability, wherein the Ductile cast iron alloy as non-iron constituents at least the elements C, Si, Mn, Cu, Mg, S and as admixtures one or more elements of the Group IIIb of the periodic table, wherein the alloy as an admixture contains at least the element boron and wherein the Si content is more than 2.4% is.
- the Perlitanteil reduced in the structure of cast iron products and that a ferritic structure can be guaranteed. This will achieved in that the alloy contains 2 to 200 ppm of boron as an admixture.
- the gist of the invention is to provide a cast iron alloy which is particularly suitable for load-bearing parts, such as the suspension in the automotive industry.
- the load-bearing parts must not break, but only deform.
- the deformation should not be elastic but plastic.
- the Deformability of the parts should be plastic and should be as large as possible do not lead to breakage of the parts and should not be reversible.
- GJS ductile iron
- the graphite formation in the microstructure is, measured according to the standard DIN EN ISO 945, more than 90% Form VI, and the size of the graphite spheres in the microstructure is in the classes 7-8.
- composition and properties of the casting are compared with a conventional spheroidal cast alloy called GJS-400-15.
- This composition can be determined by the measurement results of a instrumented impact test are shown. This impact test is performed as a simulation for the wheel suspension abuse test Passenger car.
- diagram 1 on the right side the measurement results of the Impact tests on a wishbone of a passenger car shown.
- Comparative values are also the measurement results in diagram 1 on the left side of an identical casting, made of commercially available nodular cast iron was produced. From diagram 1 it can be seen that the whole Energy absorption in the control arm during impact test is more than 2200 J. From Diagram 1 it can also be seen that the deformation value in Impact test more than 75% higher than in a comparable castings a conventional nodular cast iron alloy. The deformation of the control arm, expressed in mm, measured as the difference between two measuring points on Casting, before and after the impact test, is more than 15 mm. at comparable castings from a conventional nodular cast iron alloy this deformation is usually less than 9 mm. The maximum force of the Wishbone is added, is between 3000 and 3500 kN. This here instrumented impact test is performed on a Rosand impact tester.
- Wishbone for a passenger car which from the inventive Pig iron alloy with at least 2.4% Si content and at least that Element boron can be produced as an admixture, and when casting a be subjected to as gentle as possible surface treatment, draw characterized by a high plastic non-reversible deformability.
- the bearing parts of the suspension of an automobile break during the crash test, which simulates a particular accident situation, not and remain intact.
- the present cast alloy is also suitable for all other vehicle parts that may deform under extreme loads, but may not break.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
- Vehicle Body Suspensions (AREA)
- Body Structure For Vehicles (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Superconductors And Manufacturing Methods Therefor (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Valve Housings (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Forging (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CY20061101779T CY1107543T1 (el) | 2001-06-20 | 2006-12-11 | Κραμα χυτοσιδηρου σφαιροειδους γραφιτη |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10129382 | 2001-06-20 | ||
| DE10129382A DE10129382A1 (de) | 2001-06-20 | 2001-06-20 | Sphärogusslegierung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP1270747A2 true EP1270747A2 (fr) | 2003-01-02 |
| EP1270747A3 EP1270747A3 (fr) | 2004-01-02 |
| EP1270747B1 EP1270747B1 (fr) | 2006-10-04 |
Family
ID=7688591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02006104A Expired - Lifetime EP1270747B1 (fr) | 2001-06-20 | 2002-03-19 | Fonte à graphite sphéroidal |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US6861029B2 (fr) |
| EP (1) | EP1270747B1 (fr) |
| AT (1) | ATE341650T1 (fr) |
| BR (1) | BR0202323B1 (fr) |
| CY (1) | CY1107543T1 (fr) |
| DE (2) | DE10129382A1 (fr) |
| DK (1) | DK1270747T3 (fr) |
| ES (1) | ES2269539T3 (fr) |
| MX (1) | MXPA02006048A (fr) |
| PT (1) | PT1270747E (fr) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3170578A1 (fr) * | 2015-11-17 | 2017-05-24 | Georg Fischer GmbH | Corps de modification |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102004056331A1 (de) * | 2004-11-22 | 2006-05-24 | Georg Fischer Fahrzeugtechnik Ag | Sphärogusslegierung und Verfahren zur Herstellung von Gussteilen aus der Sphärogusslegierung |
| US20060292026A1 (en) * | 2005-06-08 | 2006-12-28 | Robert Eppich | Cast iron alloy containing boron |
| SE531107C2 (sv) * | 2006-12-16 | 2008-12-23 | Indexator Ab | Metod |
| US7846381B2 (en) * | 2008-01-29 | 2010-12-07 | Aarrowcast, Inc. | Ferritic ductile cast iron alloys having high carbon content, high silicon content, low nickel content and formed without annealing |
| EP2319639A1 (fr) * | 2009-11-10 | 2011-05-11 | Georg Fischer Automobilguss GmbH | Fusée d'essieu en fonte dotée d'un noyau d'acier coulé - procédé de fabrication de la fusée d'essieu |
| KR20140070646A (ko) * | 2012-08-13 | 2014-06-10 | 가부시키가이샤 고마쓰 세이사쿠쇼 | 플로팅 시일 |
| CN103946609B (zh) * | 2012-08-13 | 2016-01-20 | 株式会社小松制作所 | 浮动密封件 |
| EP3243920B1 (fr) | 2017-03-24 | 2020-04-29 | GF Casting Solutions Kunshan Co. Ltd. | Alliage en fonte à graphite sphéroidal |
| US11820197B2 (en) | 2022-02-09 | 2023-11-21 | Honda Motor Co., Ltd. | Vehicle control arm assembly |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1193067A (fr) * | 1958-03-05 | 1959-10-30 | Bouchayer & Viallet Ets | Perfectionnements aux fontes spéciales |
| GB832666A (en) * | 1957-06-10 | 1960-04-13 | Gen Motors Corp | Improved ferrous metal and methods of producing the same |
| EP0525540A1 (fr) * | 1991-07-27 | 1993-02-03 | MAN B & W Diesel Aktiengesellschaft | Chemise de cylindre pour un moteur à combustion interne |
| US5876523A (en) * | 1996-04-29 | 1999-03-02 | Hitachi Metals, Ltd. | Method of producing spheroidal graphite cast iron article |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2428822A1 (de) * | 1974-06-14 | 1976-01-02 | Goetzewerke | Sphaerogusseisenlegierung mit erhoehter verschleissbestaendigkeit |
| JP3913935B2 (ja) * | 1999-06-21 | 2007-05-09 | 本田技研工業株式会社 | 亜共晶球状黒鉛鋳鉄 |
-
2001
- 2001-06-20 DE DE10129382A patent/DE10129382A1/de not_active Ceased
-
2002
- 2002-03-19 PT PT02006104T patent/PT1270747E/pt unknown
- 2002-03-19 DK DK02006104T patent/DK1270747T3/da active
- 2002-03-19 ES ES02006104T patent/ES2269539T3/es not_active Expired - Lifetime
- 2002-03-19 DE DE50208313T patent/DE50208313D1/de not_active Expired - Lifetime
- 2002-03-19 AT AT02006104T patent/ATE341650T1/de active
- 2002-03-19 EP EP02006104A patent/EP1270747B1/fr not_active Expired - Lifetime
- 2002-06-18 MX MXPA02006048A patent/MXPA02006048A/es active IP Right Grant
- 2002-06-19 BR BRPI0202323-7A patent/BR0202323B1/pt not_active IP Right Cessation
- 2002-06-20 US US10/176,434 patent/US6861029B2/en not_active Expired - Lifetime
-
2006
- 2006-12-11 CY CY20061101779T patent/CY1107543T1/el unknown
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB832666A (en) * | 1957-06-10 | 1960-04-13 | Gen Motors Corp | Improved ferrous metal and methods of producing the same |
| FR1193067A (fr) * | 1958-03-05 | 1959-10-30 | Bouchayer & Viallet Ets | Perfectionnements aux fontes spéciales |
| EP0525540A1 (fr) * | 1991-07-27 | 1993-02-03 | MAN B & W Diesel Aktiengesellschaft | Chemise de cylindre pour un moteur à combustion interne |
| US5876523A (en) * | 1996-04-29 | 1999-03-02 | Hitachi Metals, Ltd. | Method of producing spheroidal graphite cast iron article |
Non-Patent Citations (1)
| Title |
|---|
| SPIEKERMANN P: "LEGIERUNGEN - EIN BESONDERES PATENTRECHTLICHES PROBLEM? - LEGIERUNGSPRUEFUNG IM EUROPAEISCHEN PATENTAMT -" MITTEILUNGEN DER DEUTSCHEN PATENTANWAELTE, HEYMANN, KOLN,, DE, 1993, Seiten 178-190, XP000961882 ISSN: 0026-6884 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3170578A1 (fr) * | 2015-11-17 | 2017-05-24 | Georg Fischer GmbH | Corps de modification |
Also Published As
| Publication number | Publication date |
|---|---|
| DK1270747T3 (da) | 2007-02-05 |
| BR0202323A (pt) | 2003-04-08 |
| ES2269539T3 (es) | 2007-04-01 |
| CY1107543T1 (el) | 2013-03-13 |
| PT1270747E (pt) | 2007-01-31 |
| US6861029B2 (en) | 2005-03-01 |
| BR0202323B1 (pt) | 2010-11-03 |
| EP1270747A3 (fr) | 2004-01-02 |
| US20020195180A1 (en) | 2002-12-26 |
| ATE341650T1 (de) | 2006-10-15 |
| DE10129382A1 (de) | 2003-01-02 |
| MXPA02006048A (es) | 2003-08-20 |
| DE50208313D1 (de) | 2006-11-16 |
| EP1270747B1 (fr) | 2006-10-04 |
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