EP3007842A1 - Verfahren zur herstellung von warmbeständigen und verschleissfesten formteilen, insbesondere motorkomponenten - Google Patents
Verfahren zur herstellung von warmbeständigen und verschleissfesten formteilen, insbesondere motorkomponentenInfo
- Publication number
- EP3007842A1 EP3007842A1 EP14728909.4A EP14728909A EP3007842A1 EP 3007842 A1 EP3007842 A1 EP 3007842A1 EP 14728909 A EP14728909 A EP 14728909A EP 3007842 A1 EP3007842 A1 EP 3007842A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- max
- μηη
- sintered material
- following composition
- unavoidable impurities
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F5/00—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product
- B22F5/008—Manufacture of workpieces or articles from metallic powder characterised by the special shape of the product of engine cylinder parts or of piston parts other than piston rings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
- B22F1/14—Treatment of metallic powder
- B22F1/148—Agglomerating
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/0433—Nickel- or cobalt-based alloys
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C33/00—Making ferrous alloys
- C22C33/02—Making ferrous alloys by powder metallurgy
- C22C33/0257—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements
- C22C33/0278—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5%
- C22C33/0285—Making ferrous alloys by powder metallurgy characterised by the range of the alloying elements with at least one alloying element having a minimum content above 5% with Cr, Co, or Ni having a minimum content higher than 5%
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/24—After-treatment of workpieces or articles
- B22F2003/248—Thermal after-treatment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F9/00—Making metallic powder or suspensions thereof
- B22F9/02—Making metallic powder or suspensions thereof using physical processes
- B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
- B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
- B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
- B22F2009/0824—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid
- B22F2009/0828—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid with a specific atomising fluid with water
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/02—Compacting only
- B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/10—Sintering only
- B22F3/1017—Multiple heating or additional steps
- B22F3/1021—Removal of binder or filler
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F3/15—Hot isostatic pressing
Definitions
- the invention relates to a process for the production of heat-resistant and wear-resistant molded parts, in particular engine components.
- VSR valve seat ring
- the main stresses in the tribological system VentilA SR are high relative movement and high surface pressure on the valve seat due to high combustion pressures of 200 to 250 bar for high-duty commercial vehicle and stationary engines, high thermal stress with valve seat ring temperatures of 300 to 500 ° C and low solid lubrication when using alternative fuels and novel exhaust aftertreatment concepts. This creates an extreme tribological effect on the components valve and VSR
- Relaxation is a thermally activated process that occurs under mechanical stress at high temperatures and causes components to release internal stress. In short, relaxation is the transformation of elastic strain into plastic creep at constant total elongation. In one with a defined excess, the so-called overlap, in the
- VSR Cylinder head pressed VSR caused high compressive stresses. Depending on the level of stress and the relaxation resistance of the respective material, the VSR reduces these stresses by relaxation. The initially purely elastic elongation caused by the press-fitting is partially converted into plastic creep. The VSR has a lower coverage after removal. Consequently, valve seat rings must have sufficient relaxation resistance.
- valve seat rings are subjected to corrosive application due to application.
- the tribochemical load on VSR is exacerbated by the measures under the new emission regulations.
- EGR exhaust gas recirculation
- Critical states do not occur at high loads, but at standstill when the engine cools down.
- the use of corrosion-resistant VSR is required, at least on the inlet side.
- the prior art discloses a variety of methods for producing the above-described engine components; For example, by casting techniques on the processes of centrifugal and sand casting, as well as powder metallurgy via pressing and sintering. Also special manufacturing processes, where material by a
- WO 2005/012590 A2 discloses a method for the production of valve seat rings which are formed by thermally sprayed layers of a Co or Co / Mo base alloy and an arc wire spraying method with one or more
- WO 2001/049437 A2 discloses a powder-metallurgically produced sintered shaped part for tribological parts in the motor vehicle industry with high temperature and wear resistance, which consists of a powder mixture with molybdenum-phosphorus-carbon steel powder and at least one further, substantially phosphorus-free steel powder in a weight ratio from 5:95 to 60:40, carbon powder and at least one solid lubricant is available.
- Cast-formed VSR are mainly used in the commercial vehicle sector. Typical materials for medium to high loads are high-alloyed,
- modified high-speed steels and high-alloy Fe-Cr steels are generally no longer able to meet the highest demands in heavy commercial vehicle and stationary engines and in alternative fuel operation. This requires special alloys based on Ni and Co. These are characterized by high hot compressive strength, high temperature resistance and excellent wear characteristics. In addition, these materials show sufficient resistance to
- EP 1 536 027 B1 discloses a sintered body of a raw or granulated powder having a relative density of 97% or more. According to the invention, a powder with an average particle size of 8.5 ⁇ or less is to be provided for this purpose. Since the average grain size of the high powder for filtering according to the information in the document is comparatively small, the filtration diffusion rate is improved and the quality of the filtering increased to a great extent.
- the invention has for its object a method for the preparation of
- Binders, optionally solid lubricants and / or hard phases are mixed; then a cold or warm isostatic pressing of the sintered material is carried out with a pressure of 400 to 900 MPa to densities of 5 to 7 g / ccm; then the sintering of the green compacts takes place at temperatures of 1 .000 to 1 .350 ° C and finally a post-processing step.
- the sintering material used is an iron-based alloy having the following composition in% by weight:
- the sintering material used is an iron-based alloy having the following composition in% by weight:
- the sintering material used is an iron-based alloy having the following composition in% by weight:
- the sintering material used is an iron-based alloy having the following composition in% by weight:
- the sintering material used is a cobalt-based alloy having the following composition in% by weight: max. 5.0 Fe; Max. 0.7 C; 15.0 - 25.0 Mo; 14.0 - 23.0 Cr; 0.7-1.4 Si; Rest of Co; as well as max. 3.0 unavoidable impurities.
- the sintering material used is a cobalt-based alloy having the following composition in% by weight: max. 3.0 Fe; 2.0-2.8 C; 27.0 - 32.0 Cr; 0.5-1.5 Si; Rest of Co; as well as max. 3.0 unavoidable impurities.
- an N 2 -H 2 atmosphere is used with a mixing ratio of about 80 - 20% or vacuum. It was found out that the
- the powder metallurgical production process makes it possible to produce high-precision molded parts, which require fewer post-processing steps compared to the classical production by casting.
- the microstructure of the alloys according to the invention is composed of a matrix with a particle size of 5-10 ⁇ m, in which uniformly finely divided carbides or intermetallic phases with a grain size of likewise 5-10 ⁇ m and optionally solid lubricants, such as, for example, MoS 2 , are stored.
- the heterogeneous structure of the structure is very promising from a tribological point of view: for example, heterogeneous microstructures with hard carbides or intermetallic phases have, for example, adhesion to the wear mechanisms,
- Corrosion resistance leads, compared to conventional sintered materials from conventional sintered powders with an initial particle size greater than 50 ⁇ .
- Microstructural properties can not be produced using the production methods known hitherto.
- the process is an enrichment of the state of the art both for the Fe-based Tool Steel materials and in particular for the Co and Ni-based special materials.
- Typical powder-metallurgically produced engine component moldings are based on base iron and shellac base powders and also have a heterogeneous microstructure with embedded hard phases and solid lubricants.
- inlet components with low to medium requirements can be produced, among other things, materials with open porosity.
- the porosity is usually filled with Cu via an infiltration process.
- the invention is based on the general idea of combining the advantages of powder metallurgy with the advantages of casting technology, with the aim of economically producing highly wear-resistant engine components,
- valvetrain and turbocharger components for use in
- the invention is based on the finding that the powder metallurgical
- the moldings, in particular engine components, must be post-processed, in particular machined, since the green compacts shrink by 10 to 20% during the sintering process.
- a finishing step is understood to mean turning (outside and inside), plan, round and vibratory grinding. Which or which post-processing step (s) are used depends on the respective engine component to be produced.
- the Nachbeailleungs site is significantly reduced in the inventive method compared to the classical casting technique, whereby the economic production of high-alloy Fe and especially co-base materials is possible.
- solid lubricants which are resistant to temperatures of 1 .100 ° C, possibly with a very high proportion, be mixed.
- the solid lubricants and optionally hard phases are formed as a heterogeneous structure and evenly distributed in the molding.
- MoS 2 molybdenum disulfide
- MnS manganese sulfide
- CaF calcium fluoride
- the addition of solid lubricants leads on the one hand to increased wear resistance in dry environments such as those present in internal combustion engines and, on the other hand, to improved machinability during the finishing of the engine manufacturer.
- hard materials for example intermetallic phases or ferro-molybdenum (FeMo), can be admixed.
- the hard phases have a grain size of at least 50 to max. 500 ⁇ , preferably from 150 ⁇ to 300 ⁇ .
- the densely sintered base materials may also contain hard, fine-grained and fine-grained carbides as well as other heterogeneously distributed carbides. This leads to increased wear resistance and relaxation resistance, since grain boundary sliding and
- a sintered molded part produced according to the invention has increased corrosion resistance in comparison to conventional sintered materials with open or Cu-filled pores.
- components for internal combustion engines can be produced economically from materials which are exclusively known by casting technology. This opens up wear-technological and economic advantages. To date, no manufacturing process is known with which, with equal high efficiency such material concepts can be realized.
- the heat-resistant and wear-resistant molded parts produced by the process according to the invention have a wide field of application.
- the main focus of application is in the area of engine components which are dense, heterogeneous and evenly distributed
- Example 1 describes the production according to the invention of a material which is known by casting technology known as PL 510.
- a water atomized sintered material having the following composition in wt .-%: 1, 5 - 2.0 C; 5.0 - 13.0 Mo; 5.0-10.0 Cr; 0.8-1.8 Si; Max.
- the density of the molding obtainable by the process according to the invention is 7.51 g / cc; the hardness is 55.3 to 58.7 HRC.
- the molding is particularly suitable for high temperature applications and has a high wear and relaxation resistance.
- the microstructures of the two materials PL 510 and PLS 510 are shown in Figs. 1 and 2. This shows in comparison that in both micrographs, the gray hard phase is well and evenly formed, but in the PLS 510 finely divided, is present.
- These very finely divided carbides prove to be particularly advantageous for the molding according to the invention in relation to the described high-temperature applications. In particular, from a tribological point of view, significant advantages compared to the classic material of the casting technique can be seen.
- Example 2 describes the production according to the invention of a material which is known by casting technology known as PL 860.
- a water atomized sintered material having the following composition in wt .-%: 0, 1 - 0.3 Fe; 2.0-2.8 C; 27.0 - 32.0 Cr; 0.5-1.5 Si; 10.0 - 14.0 W; Residue Co, with an average particle size of> 30 ⁇ was sintered according to the method of the invention to form a molding, initially a cold isostatic pressing with a pressure of 800 MPa, a debinder at 750 ° C, and finally sintering under vacuum at 1250 ° C. for 3 h took place.
- the density of the molding obtainable by the process according to the invention is 8.47 to 8.56 g / cc; the hardness is 53.8 HRC.
- the molding is particularly suitable for high temperature applications and has a high wear, relaxation and corrosion resistance.
- Example 3 describes the production according to the invention of a material which is known by casting under the name PL 26 is known.
- a water atomized sintered material having the following composition in wt .-%: 0.2 - 1, 0 C; 20.0-30.0 Cr; 14.0 - 23.0 Ni; 1, 0 -3.0 Mo; 0.5-1, 0 Mn; 1, 8-3.5 Si; 2.0 - 4.0 W; 1, 0-3.0 Nb; 0.2-1.0 S; Residual Fe, with an average particle size of> 30 ⁇ m, was sintered to form a molded part according to the method according to the invention, with at first cold isostatic pressing with a compression pressure of 800 MPa
- the density of the molding obtainable by the process according to the invention, hereinafter referred to as PLS 26, is 7.35 g / cc; the hardness is 265 HV 10.
- the molded part is particularly suitable for high-temperature applications and has a high resistance to wear, relaxation and corrosion.
- Example 4 The microstructures of the two materials PL 26 and PLS 26 are shown in Figs. 5 and 6.
- Example 4 The microstructures of the two materials PL 26 and PLS 26 are shown in Figs. 5 and 6.
- Example 4 The microstructures of the two materials PL 26 and PLS 26 are shown in Figs. 5 and 6.
- Example 4 The microstructures of the two materials PL 26 and PLS 26 are shown in Figs. 5 and 6.
- Example 4 describes the production according to the invention of a co-base material which is known by casting technology under the designation PL 840.
- a water atomized sintered material with the following composition in wt .-%: max. 5.0 Fe; Max. 1, 0 C; 15.0 - 30.0 Mo; 1 1, 0 - 25.0 Cr; 1, 0-2.5 Si; Residual Co, with an average particle size of> 30 ⁇ was sintered according to the inventive method to form a molding, wherein initially a cold isostatic pressing with a pressing pressure of 800 MPa, a debinder at 750 ° C, and finally a sintering under vacuum at 1, 250 ° C for 3 h was carried out.
- the density of the molding obtainable by the process according to the invention is 8.62 g / cc; the hardness is 49.2 to 51, 1 HRC.
- the molding is particularly suitable for high temperature applications and has a high wear and relaxation resistance.
- microstructures of the two materials PL 840 and PLS 840 are shown in Figs. 7 and 8.
- the material PLS 840 shows a heterogeneous structure with evenly distributed intermetallic phases and
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013210895.8A DE102013210895A1 (de) | 2013-06-11 | 2013-06-11 | Verfahren zur Herstellung von warmbeständigen und verschleißfesten Formteilen, insbesondere Motorkomponenten |
| PCT/EP2014/061376 WO2014198576A1 (de) | 2013-06-11 | 2014-06-02 | Verfahren zur herstellung von warmbeständigen und verschleissfesten formteilen, insbesondere motorkomponenten |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3007842A1 true EP3007842A1 (de) | 2016-04-20 |
| EP3007842B1 EP3007842B1 (de) | 2017-03-29 |
| EP3007842B2 EP3007842B2 (de) | 2020-02-12 |
Family
ID=50897583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP14728909.4A Not-in-force EP3007842B2 (de) | 2013-06-11 | 2014-06-02 | Verfahren zur herstellung von warmbeständigen und verschleissfesten formteilen, insbesondere motorkomponenten |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3007842B2 (de) |
| DE (1) | DE102013210895A1 (de) |
| WO (1) | WO2014198576A1 (de) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102013210895A1 (de) | 2013-06-11 | 2014-12-11 | Mahle International Gmbh | Verfahren zur Herstellung von warmbeständigen und verschleißfesten Formteilen, insbesondere Motorkomponenten |
| DE102015211623A1 (de) * | 2015-06-23 | 2016-12-29 | Mahle International Gmbh | Verfahren zur Herstellung eines Ventilsitzringes |
| SE541184C2 (en) * | 2017-03-14 | 2019-04-23 | Vbn Components Ab | High carbon content cobalt-based alloy |
| EP3609640B1 (de) | 2017-03-14 | 2023-07-12 | VBN Components AB | Legierung auf kobaltbasis mit hohem kohlenstoffgehalt |
| DE102017218123A1 (de) * | 2017-10-11 | 2019-04-11 | Mahle International Gmbh | Verfahren zum Herstellen eines Ventilsitzrings auf pulvermetallurgischem Wege |
| DE102018205818A1 (de) | 2018-04-17 | 2019-10-17 | Ford Global Technologies, Llc | Verfahren zum Betrieb eines Hybridelektrofahrzeugs |
| DE102018214344A1 (de) | 2018-08-24 | 2020-02-27 | Mahle International Gmbh | Verfahren zum Herstellen eines pulvermetallurgischen Erzeugnisses |
| EP4209611A1 (de) * | 2022-01-11 | 2023-07-12 | Garrett Transportation I Inc. | Hochsiliziumreiche rostfreie stahllegierungen und daraus geformte turboladerkinematikkomponenten |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3988524A (en) | 1973-01-15 | 1976-10-26 | Cabot Corporation | Powder metallurgy compacts and products of high performance alloys |
| US4129444A (en) * | 1973-01-15 | 1978-12-12 | Cabot Corporation | Power metallurgy compacts and products of high performance alloys |
| GB1495705A (en) * | 1973-12-18 | 1977-12-21 | Dain R | Making steel articles from powder |
| GB9405946D0 (en) * | 1994-03-25 | 1994-05-11 | Brico Eng | Sintered valve seat insert |
| US5629091A (en) * | 1994-12-09 | 1997-05-13 | Ford Motor Company | Agglomerated anti-friction granules for plasma deposition |
| WO2001049437A2 (de) | 2000-01-06 | 2001-07-12 | Bleistahl-Produktions Gmbh & Co. Kg | Pulvermetallurgisch hergestelltes sinter-formteil |
| US20030177866A1 (en) * | 2002-03-22 | 2003-09-25 | Omg Americas, Inc. | Agglomerated stainless steel powder compositions and methods for making same |
| DE10334703A1 (de) | 2003-07-30 | 2005-02-24 | Daimlerchrysler Ag | Ventilsitzringe aus Co oder Co/Mo-Basislegierungen und deren Herstellung |
| DE102005001198A1 (de) * | 2005-01-10 | 2006-07-20 | H.C. Starck Gmbh | Metallische Pulvermischungen |
| GB2440737A (en) * | 2006-08-11 | 2008-02-13 | Federal Mogul Sintered Prod | Sintered material comprising iron-based matrix and hard particles |
| DE102013210895A1 (de) | 2013-06-11 | 2014-12-11 | Mahle International Gmbh | Verfahren zur Herstellung von warmbeständigen und verschleißfesten Formteilen, insbesondere Motorkomponenten |
-
2013
- 2013-06-11 DE DE102013210895.8A patent/DE102013210895A1/de not_active Withdrawn
-
2014
- 2014-06-02 WO PCT/EP2014/061376 patent/WO2014198576A1/de not_active Ceased
- 2014-06-02 EP EP14728909.4A patent/EP3007842B2/de not_active Not-in-force
Also Published As
| Publication number | Publication date |
|---|---|
| EP3007842B1 (de) | 2017-03-29 |
| DE102013210895A1 (de) | 2014-12-11 |
| EP3007842B2 (de) | 2020-02-12 |
| WO2014198576A1 (de) | 2014-12-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3007842B1 (de) | Verfahren zur herstellung von warmbeständigen und verschleissfesten formteilen, insbesondere motorkomponenten | |
| DE69906221T2 (de) | Ventilsitz aus Metallpulver | |
| DE102010055463B4 (de) | Gesinterte Ventilführung und Herstellungsverfahren hierfür | |
| CN102361997B (zh) | 铁钒粉末合金 | |
| RU2490353C2 (ru) | Низколегированный стальной порошок | |
| EP3325194B1 (de) | Tribologisches system umfassend einen ventilsitzring und ein ventil | |
| DE112009002015B4 (de) | Turbolader und Schaufellagerring hierfür | |
| EP0372223A1 (de) | Sinterwerkstoff auf Kupferbasis, dessen Verwendung sowie Verfahren zur Herstellung von Formteilen aus dem Sinterwerkstoff | |
| DE69412685T2 (de) | Ventilschaftführung, hergestellt aus einer Sinterlegierung auf Eisen-Basis mit sehr guter Beständigkeit gegen Verschleiss und Abrieb | |
| DE102013004817A1 (de) | Sinterlegierung und Verfahren zu seiner Herstellung | |
| DE2851100B2 (de) | Verschleißfeste Sinterlegierung | |
| WO2018095928A1 (de) | Pulvermetallurgisch hergestellter, hartstoffpartikel enthaltender stahlwerkstoff, verfahren zur herstellung eines bauteils aus einem solchen stahlwerkstoff und aus dem stahlwerkstoff hergestelltes bauteil | |
| EP3530400A1 (de) | Verfahren zum herstellen eines bauteils, insbesondere fahrzeugbauteils, und entsprechend hergestelltes bauteil | |
| WO2001079575A1 (de) | Stickstofflegierter, sprühkompaktierter stahl, verfahren zu seiner herstellung und verbundwerkstoff hergestellt aus dem stahl | |
| EP3150304A1 (de) | Verfahren zur herstellung eines ventilsitzringes | |
| WO2018095610A1 (de) | Pulvermetallurgisch hergestellter stahlwerkstoff, verfahren zur herstellung eines bauteils aus einem solchen stahlwerkstoff und aus dem stahlwerkstoff hergestelltes bauteil | |
| DE2063846B2 (de) | Verfahren zum Herstellen von Fonnkörpern aus Schnellarbeitsstahl | |
| DE19723392C2 (de) | Ventilsitz | |
| DE102020213651A1 (de) | Verschleißfeste, hochwärmeleitfähige Sinterlegierung, insbesondere für Lageranwendungen und Ventilsitzringe | |
| EP2052096A1 (de) | Stahlwerkstoff, insbesondere zur herstellung von kolbenringen | |
| DE102018214344A1 (de) | Verfahren zum Herstellen eines pulvermetallurgischen Erzeugnisses | |
| EP1250518B1 (de) | Pulvermetallurgisch hergestellter ventilkörper und damit ausgestattetes ventil | |
| DE112005002568T5 (de) | Sinterlegierungen für Nockenbuckel und andere Gegenstände mit hohem Verschleiß | |
| DE10016830A1 (de) | Pulvermetallurgisch hergestelltes Sinter-Formteil | |
| WO2001049437A2 (de) | Pulvermetallurgisch hergestelltes sinter-formteil |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 |
|
| 17P | Request for examination filed |
Effective date: 20151021 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| AX | Request for extension of the european patent |
Extension state: BA ME |
|
| DAX | Request for extension of the european patent (deleted) | ||
| RIC1 | Information provided on ipc code assigned before grant |
Ipc: B22F 1/00 20060101AFI20161027BHEP Ipc: B22F 3/15 20060101ALI20161027BHEP Ipc: B22F 5/00 20060101ALI20161027BHEP Ipc: B22F 3/24 20060101ALI20161027BHEP Ipc: B22F 9/08 20060101ALI20161027BHEP Ipc: C22C 33/02 20060101ALI20161027BHEP Ipc: C22C 1/04 20060101ALI20161027BHEP Ipc: B22F 3/10 20060101ALI20161027BHEP Ipc: B22F 3/04 20060101ALI20161027BHEP Ipc: B22F 9/02 20060101ALI20161027BHEP |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| INTG | Intention to grant announced |
Effective date: 20161207 |
|
| GRAS | Grant fee paid |
Free format text: ORIGINAL CODE: EPIDOSNIGR3 |
|
| GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
| AK | Designated contracting states |
Kind code of ref document: B1 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: REF Ref document number: 879257 Country of ref document: AT Kind code of ref document: T Effective date: 20170415 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: LANGUAGE OF EP DOCUMENT: GERMAN |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R096 Ref document number: 502014003240 Country of ref document: DE |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 4 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: NO 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: 20170629 Ref country code: HR 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: 20170329 Ref country code: FI 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: 20170329 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: 20170630 Ref country code: LT 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: 20170329 |
|
| REG | Reference to a national code |
Ref country code: NL Ref legal event code: MP Effective date: 20170329 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SE 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: 20170329 Ref country code: RS 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: 20170329 Ref country code: BG 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: 20170629 Ref country code: LV 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: 20170329 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
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: 20170329 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CZ 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: 20170329 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 Effective date: 20170329 Ref country code: ES 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: 20170329 Ref country code: EE 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: 20170329 Ref country code: SK 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: 20170329 Ref country code: RO 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: 20170329 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SM 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: 20170329 Ref country code: PL 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: 20170329 Ref country code: IS 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: 20170729 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R026 Ref document number: 502014003240 Country of ref document: DE |
|
| PLBI | Opposition filed |
Free format text: ORIGINAL CODE: 0009260 |
|
| PLAX | Notice of opposition and request to file observation + time limit sent |
Free format text: ORIGINAL CODE: EPIDOSNOBS2 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK 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: 20170329 Ref country code: MC 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: 20170329 |
|
| REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
| 26 | Opposition filed |
Opponent name: BLEISTAHL-PRODUKTIONS GMBH & CO KG. Effective date: 20171227 |
|
| REG | Reference to a national code |
Ref country code: IE Ref legal event code: MM4A |
|
| 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: 20170602 Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170630 Ref country code: IE Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170602 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20170630 |
|
| PLBB | Reply of patent proprietor to notice(s) of opposition received |
Free format text: ORIGINAL CODE: EPIDOSNOBS3 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: SI 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: 20170329 |
|
| REG | Reference to a national code |
Ref country code: BE Ref legal event code: MM Effective date: 20170630 |
|
| REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 5 |
|
| 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: 20170630 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MT 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: 20170329 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: HU Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO Effective date: 20140602 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: FR Payment date: 20190626 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: CY 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: 20170329 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: GB Payment date: 20190627 Year of fee payment: 6 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: MK 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: 20170329 |
|
| PUAH | Patent maintained in amended form |
Free format text: ORIGINAL CODE: 0009272 |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: PATENT MAINTAINED AS AMENDED |
|
| 27A | Patent maintained in amended form |
Effective date: 20200212 |
|
| AK | Designated contracting states |
Kind code of ref document: B2 Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R102 Ref document number: 502014003240 Country of ref document: DE |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: TR 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: 20170329 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT 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: 20170329 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: AL 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: 20170329 |
|
| REG | Reference to a national code |
Ref country code: AT Ref legal event code: MM01 Ref document number: 879257 Country of ref document: AT Kind code of ref document: T Effective date: 20190602 |
|
| 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: 20190602 |
|
| GBPC | Gb: european patent ceased through non-payment of renewal fee |
Effective date: 20200602 |
|
| PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200602 Ref country code: FR Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20200630 |
|
| PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20230620 Year of fee payment: 10 |
|
| REG | Reference to a national code |
Ref country code: DE Ref legal event code: R119 Ref document number: 502014003240 Country of ref document: DE |
|
| 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: 20250101 |