EP1415009A1 - Spharoguss mit hoher festigkeit und duktilitat und daraus hergestelltes getriebegehause - Google Patents
Spharoguss mit hoher festigkeit und duktilitat und daraus hergestelltes getriebegehauseInfo
- Publication number
- EP1415009A1 EP1415009A1 EP02766913A EP02766913A EP1415009A1 EP 1415009 A1 EP1415009 A1 EP 1415009A1 EP 02766913 A EP02766913 A EP 02766913A EP 02766913 A EP02766913 A EP 02766913A EP 1415009 A1 EP1415009 A1 EP 1415009A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- percent
- strength
- ductility
- silicon
- housing
- 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
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
- C22C37/10—Cast-iron alloys containing aluminium or silicon
-
- 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
Definitions
- the invention relates to a nodular cast iron with siliconized silicon, as it is commonly used for heavily used castings, for example the materials according to DIN or SAE [in square brackets]:
- the first one (a) is still ferritic and therefore tenacious, but its strength is only mediocre. If the strength is to be higher, one resorts to the materials b), c) and d), which in turn are ferritic-perlitic to 0 perlitiscli, with strong declinative toughness and weldability. These materials have from a) to d) increasingly a multiphase (ferritic-pearlitic) Grundfuge locally different composition, which is reinforced by the unavoidable during casting locally different cooling conditions and to 5 problems in the subsequent, in particular machining , Editing leads. Their use is therefore limited to special applications. In vehicle construction, the reduction of weight is a particular concern, which in castings low wall thickness - ie high strength - but also requires toughness and good workability. It is then necessary to use steel, but it is about 10 percent heavier.
- a nodular cast iron according to the invention contains: 4 to 6 percent silicon and a proportion of carbon corresponding to the carbon equivalent, a maximum of 0.03 percent phosphorus and 0.2 to 0.5 percent nickel.
- the high content of silicon has a ferrite-stabilizing effect and also increases the strength.
- the carbon equivalent requires a corresponding reduction of the carbon content. Since phosphorus acts as embrittlement due to the strong solid solution hardening of the compounds it has received, the phosphorus content must be kept as small as possible. Nickel also reduces the brittleness and increases the strength, the required proportions are so small that the resulting additional costs are negligible.
- the invention also relates to housings, in particular gear housing, which consist of a ductile iron according to one of the preceding claims.
- gear housing which consist of a ductile iron according to one of the preceding claims.
- Such a gear housing can be thinner walled and lighter because of the high strength of the fiction, according to improved ductile iron.
- the machining necessary for the formation of connection flanges and bearing seats is possible without restriction.
- a gear housing made of the material according to the invention can be welded to a toothed part made of alloyed and / or case-hardened steel.
- Fig. 1 A comparison of nodular iron according to the prior
- FIG. 2 shows a section through a transmission housing according to the invention.
- the housing for example, the housing of a transmission, with 1 and a connected thereto to a component gear designated by 2.
- the housing 1 here consists of an inventively improved ductile iron.
- the gear 2 is made of steel and case hardened.
- the housing 1 has a first axis normal to be welded surface 3, To which a cylindrical collar 4 connects, which forms an outer cylindrical mating surface 5.
- the housing 1 may be provided at a location greater wall thickness with a parallel to the first surface to be welded to circumferential groove 6, which is rounded in cross-section.
- the cylindrical mating surface 8 can be withdrawn at the transition to the second surface 7 to be welded, so that an extension 9 forms. This facilitates the production and the sliding of the gear on the collar 4 and, if necessary, improves the penetration of the root.
- the axis of rotation of the component and 20 of the welding head is designated.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Details Of Gearings (AREA)
- Gears, Cams (AREA)
- Heat Treatment Of Articles (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT02766913T ATE316586T1 (de) | 2001-08-07 | 2002-08-02 | Spharoguss mit hoher festigkeit und duktilitat und daraus hergestelltes getriebegehause |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT6232001 | 2001-08-07 | ||
| AT0062301U AT5381U1 (de) | 2001-08-07 | 2001-08-07 | Sphäroguss hoher festigkeit und duktilität und daraus hergestelltes getriebegehäuse |
| PCT/AT2002/000234 WO2003014407A1 (de) | 2001-08-07 | 2002-08-02 | Spharoguss mit hoher festigkeit und duktilitat und daraus hergestelltes getriebegehause |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1415009A1 true EP1415009A1 (de) | 2004-05-06 |
| EP1415009B1 EP1415009B1 (de) | 2006-01-25 |
Family
ID=3495482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP02766913A Expired - Lifetime EP1415009B1 (de) | 2001-08-07 | 2002-08-02 | Spharoguss mit hoher festigkeit und duktilitat und daraus hergestelltes getriebegehause |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20040219052A1 (de) |
| EP (1) | EP1415009B1 (de) |
| JP (1) | JP2004537652A (de) |
| KR (1) | KR20040017853A (de) |
| AT (2) | AT5381U1 (de) |
| CA (1) | CA2456432A1 (de) |
| WO (1) | WO2003014407A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102006038670B4 (de) * | 2006-08-17 | 2010-12-09 | Federal-Mogul Burscheid Gmbh | Hochsiliziumhaltiger Stahlwerkstoff zur Herstellung von Kolbenringen und Zylinderlaufbuchsen |
| RU2546938C1 (ru) * | 2014-02-25 | 2015-04-10 | Юлия Алексеевна Щепочкина | Чугун |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3749463A (en) * | 1970-10-13 | 1973-07-31 | J Krapf | Bearing mounting method and apparatus |
| DE2456700C3 (de) * | 1974-11-30 | 1980-07-31 | Goetze Ag, 5093 Burscheid | Dichtleiste für Rotationskolbenmotoren |
| DE3147461C2 (de) * | 1981-12-01 | 1983-10-13 | Goetze Ag, 5093 Burscheid | Verschleißfeste Gußeisenlegierung hoher Festigkeit mit sphärolithischer Graphitausscheidung, ihr Herstellungsverfahren und ihre Verwendung |
| JPS6017819B2 (ja) * | 1982-04-01 | 1985-05-07 | マツダ株式会社 | 高温耐酸化性、耐熱疲労性に優れた球状黒鉛鋳鉄 |
| US4484953A (en) * | 1983-01-24 | 1984-11-27 | Ford Motor Company | Method of making ductile cast iron with improved strength |
| US4475956A (en) * | 1983-01-24 | 1984-10-09 | Ford Motor Company | Method of making high strength ferritic ductile iron parts |
| DE19636808C1 (de) * | 1996-09-11 | 1997-09-25 | Harzer Grauguswerke Gmbh | Gußeisen-Legierung für thermisch hochbelastete Motorenteile |
-
2001
- 2001-08-07 AT AT0062301U patent/AT5381U1/de not_active IP Right Cessation
-
2002
- 2002-08-02 EP EP02766913A patent/EP1415009B1/de not_active Expired - Lifetime
- 2002-08-02 CA CA002456432A patent/CA2456432A1/en not_active Abandoned
- 2002-08-02 JP JP2003519535A patent/JP2004537652A/ja active Pending
- 2002-08-02 US US10/486,154 patent/US20040219052A1/en not_active Abandoned
- 2002-08-02 AT AT02766913T patent/ATE316586T1/de not_active IP Right Cessation
- 2002-08-02 WO PCT/AT2002/000234 patent/WO2003014407A1/de not_active Ceased
- 2002-08-02 KR KR10-2004-7001871A patent/KR20040017853A/ko not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03014407A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004537652A (ja) | 2004-12-16 |
| ATE316586T1 (de) | 2006-02-15 |
| KR20040017853A (ko) | 2004-02-27 |
| CA2456432A1 (en) | 2003-02-20 |
| AT5381U1 (de) | 2002-06-25 |
| EP1415009B1 (de) | 2006-01-25 |
| WO2003014407A1 (de) | 2003-02-20 |
| US20040219052A1 (en) | 2004-11-04 |
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