WO2003100300A1 - Reibungs- und verschleissarmes festkörpergleitsystem - Google Patents
Reibungs- und verschleissarmes festkörpergleitsystem Download PDFInfo
- Publication number
- WO2003100300A1 WO2003100300A1 PCT/EP2003/004817 EP0304817W WO03100300A1 WO 2003100300 A1 WO2003100300 A1 WO 2003100300A1 EP 0304817 W EP0304817 W EP 0304817W WO 03100300 A1 WO03100300 A1 WO 03100300A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hydroxide
- sliding
- base material
- sliding element
- pairing according
- 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.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
- F16C33/02—Parts of sliding-contact bearings
- F16C33/04—Brasses; Bushes; Linings
- F16C33/06—Sliding surface mainly made of metal
- F16C33/12—Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing
Definitions
- the invention relates to a solid-body sliding pairing for machine parts, containing a first sliding element made of a first base material and a second sliding element made of a second base material.
- Solid-state sliding pairings of this type are used without lubrication and are therefore particularly environmentally friendly and maintenance-friendly.
- the surface should be as hard as possible and have little wear.
- Metal oxides for example, are used for such surfaces.
- the surface should have soft components that reduce the friction. These are, for example, graphite or lead.
- the surface must not corrode or the like if it is in a water vapor-containing atmosphere at high
- Sliding element e.g. a piston consisting essentially of non-graphitized carbon material and a second sliding element, e.g.
- a cylinder consists of an iron-containing, heat-resistant material alloyed with chrome or nickel, which is provided with a nitriding layer at least on the sliding surface.
- a surface with an applied metal oxide layer is disclosed in the publication. Furthermore, the
- a non-prepublished DE 101 35 477.0 discloses a sliding pairing in which a first sliding element is made on the basis of carbon and the second sliding element consists of zirconium dioxide which is coated with zirconium hydroxide. It is also known from the publication to coat the surfaces of the first sliding element with zirconium hydroxide. Such coatings are usually carried out using complex processes such as thin-film or thin-film processes, which must be carried out in clean rooms in order to obtain suitable surfaces. This makes these pairings expensive.
- the object is achieved in that at least one of the sliding elements contains a lubricant incorporated in the base material in the form of a hydroxide compound before use as a machine part.
- the hydroxide compound is then present as a lubricant regardless of the working atmosphere.
- the hydroxide compound is evenly present on the surface even if there are signs of wear.
- good friction properties with little wear can be achieved without the need for a complex coating.
- the hydroxides can be formed chemically in the base material during the manufacturing process or can be incorporated by defined introduction.
- the hydroxides can also form during the process, for example from the elements. However, this is not possible for all sliding partners. It also depends on the atmosphere whether hydroxides form. Familiarization with the base material before the machine parts are used is therefore of particular advantage.
- the base material of the first sliding element and the base material of the second sliding element are identical. Both sliding elements can contain a lubricant incorporated in the base material in the form of a hydroxide compound. The same or a different lubricant can be incorporated into both sliding elements.
- These are in particular the hydroxides of antimony (Sb), bismuth (Bi), arsenic (As), aluminum (AI), indium (In), lead (Pb), tin (Sn), zirconium (Zr) or titanium (Ti) ,
- Sb antimony
- Bi bismuth
- Au arsenic
- Al aluminum
- AI indium
- In lead
- Pb tin
- Zr zirconium
- Ti titanium
- Operation forms a sliding film automatically.
- the sliding layer that forms is then extremely low-friction.
- base materials Normal ferritic or austenitic steels and other high-temperature-resistant and corrosion-resistant steels, which can also be more or less highly alloyed, come into consideration as base materials. But is preferred as the base material for at least one
- the casting can be an alloy with 25-40% nickel and / or 3-25% chromium.
- the nickel and chrome content reduce wear and are slightly anti-corrosive.
- the lubricant can then melt or during a
- Base material and targeted solidification with formation of the finest functional particles from possibly hypereutectic melt can also be incorporated by diffusion into the base material, which may already have been processed, from a suitable gas phase or melt.
- the one or more sliding elements can also consist entirely of the hydroxides serving as lubricants. Then hydroxides also serve as basic materials. Especially possibly hypereutectic melt.
- the lubricant can also be incorporated by diffusion into the base material, which may already have been processed, from a suitable gas phase or melt.
- sliding element or elements can also be made entirely of those used as lubricants
- hydroxides exist. Then hydroxides also serve as basic materials. Aluminum hydroxide, magnesium hydroxide, titanium hydroxide, zirconium hydroxide, lead hydroxide and / or bismuth hydroxide are particularly suitable as base materials. These are easily produced hydroxides. Zirconium compounds in particular are highly resilient ceramic materials that are exposed to high tensile, compressive and
- At least one sliding element can have plastic as the base material, in particular thermosets or thermoplastics. Then the lubricant is stirred into the plastic melt during manufacture. A nickel or cobalt alloy is also well suited as the base material. The hydroxides are then introduced into the melt of these alloys. Non-ferrous metal alloys e.g. on the basis of copper and tin, such as brasses, bronzes etc. can be used and offer protection against excessive removal. Materials from mechanical micro or nanotechnology, engineering ceramics and the very easily machinable titanium silicon carbide are also suitable due to their properties.
- the first sliding element is preferably provided with a lubricant in the form of a hydroxide compound of an element and the second sliding element contains an oxide compound of the same element.
- the second sliding element with the
- Coated oxide compound Such oxide compounds can be the compounds with zirconium, aluminum and titanium. Good wear properties are achieved through the oxide connections, while the hydroxide connections provide good friction properties.
- the oxide compounds can alternatively form during operation from the elements in an oxidizing atmosphere. Instead of
- oxide compounds can also be nitride or carbide compounds.
- particularly hard surfaces can be achieved.
- the materials mentioned have improved dry friction properties in particular in an oxidizing environment such as water vapor, supercritical water or liquid water at temperatures of 200-800 ° C.
- Fig.la-d is a schematic representation of the manufacturing process of the
- a piston-cylinder arrangement for steam engines forms a sliding pair.
- the assembly is exposed to water vapor at temperatures between 300 and 850 ° C.
- the piston is made of solid zirconium oxide.
- the cylinder consists of zirconium hydroxide / metal composite matrix.
- a piston-cylinder arrangement is for
- Both the piston and the cylinder are made of spheroidal graphite cast iron (GGG), which has aluminum hydroxide deposits.
- GGG spheroidal graphite cast iron
- the friction behavior is additionally supported by the graphite contained in spheroidal graphite cast iron.
- the cylinder consists of a gray cast iron or spheroidal graphite cast matrix containing zirconium hydroxide.
- the piston is made of carbon and impregnated with antimony.
- the piston rings are made of zirconium oxide or cast steel.
- the sliding partners run on a Zirkorihydroxidfihn which is constantly renewed. The process is supported by a graphite film made from the carbon of the piston and the metal matrix. matrix containing zirconium hydroxide.
- the piston is made of carbon and impregnated with antimony.
- the piston rings are made of zirconium oxide or cast steel. During operation, the sliding partners run on a zirconium hydroxide film that is constantly renewed. The process is supported by a graphite film made from the carbon of the piston and the metal matrix.
- the sliding elements are produced by a process shown in FIGS. 1 a to 1d.
- Loose hydroxide powder 10 shown in Figure la is processed into a loosely pressed hydroxide cylinder 12, as shown in Figure 1b. Thereafter, in a further step shown in Fig.lc the casting of the hydroxide
- Cylinders with a metal e.g. Ductile iron GGG 14.
- the cylinder is e.g. machined with a tool 16. In this way, it is possible to produce components from mixed materials that normally cannot be mixed due to the buoyancy in the melt or too hot melt, etc.
- the manufacturing process is also suitable for milling with silicon carbide and aluminum.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Lubricants (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2003227736A AU2003227736A1 (en) | 2002-05-28 | 2003-05-08 | Low-friction and low-wear solid body sliding system |
| US10/515,798 US7399538B2 (en) | 2002-05-28 | 2003-05-08 | Low-friction and low-wear solid body sliding system |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10223836.7 | 2002-05-28 | ||
| DE10223836A DE10223836C1 (de) | 2002-05-28 | 2002-05-28 | Reibung- und Verschleißarmes Festkörpergleitsystem |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2003100300A1 true WO2003100300A1 (de) | 2003-12-04 |
Family
ID=7714592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2003/004817 Ceased WO2003100300A1 (de) | 2002-05-28 | 2003-05-08 | Reibungs- und verschleissarmes festkörpergleitsystem |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US7399538B2 (de) |
| AU (1) | AU2003227736A1 (de) |
| DE (1) | DE10223836C1 (de) |
| WO (1) | WO2003100300A1 (de) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2907468B1 (fr) * | 2006-10-20 | 2009-01-23 | Airbus France Sas | Interface d'adaptation de lubrification et de durete interposee entre deux pieces en titane ou en alliage de titane en mouvement relatif l'une contre l'autre. |
| GB201119794D0 (en) | 2011-11-16 | 2011-12-28 | Airway Medix Spolka Z O O | Ballooned ventilation tube cleaning device |
| US10322253B2 (en) | 2011-03-29 | 2019-06-18 | Teleflex Life Sciences Unlimited Company | Ballooned ventilation tube cleaning device |
| DE102011087345B4 (de) * | 2011-11-29 | 2021-05-06 | Zf Friedrichshafen Ag | Gelenk- und/ oder Lenkeranordnung |
| DE102013214151B4 (de) * | 2013-07-18 | 2015-03-19 | Deckel Maho Pfronten Gmbh | Aufstellelement, Maschinenbett sowie Werkzeugmaschine |
| US10500360B1 (en) | 2014-08-29 | 2019-12-10 | Teleflex Life Sciences Unlimited Company | Catheter for cleaning of tracheal ventilation tubes |
| DE102016215709A1 (de) * | 2015-08-28 | 2017-03-02 | Tsubakimoto Chain Co. | Kettenkomponente und Kette |
| JP6621110B2 (ja) * | 2015-11-10 | 2019-12-18 | 日清紡ブレーキ株式会社 | 摩擦材 |
| US11452831B2 (en) | 2016-01-06 | 2022-09-27 | Airway Medix S.A. | Closed suction system |
| GB2546082B (en) | 2016-01-06 | 2018-05-16 | Airway Medix S A | Closed suction system |
| US10946153B2 (en) | 2016-05-16 | 2021-03-16 | Teleflex Life Sciences Pte. Ltd. | Mechanical user control elements for fluid input module |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB726182A (en) * | 1951-11-23 | 1955-03-16 | Glacier Co Ltd | Improvements in or relating to plain bearings |
| US4657683A (en) * | 1985-03-15 | 1987-04-14 | Aeplc | Bearing material of polytetrafluroethylene incorporating a filler |
| US5055434A (en) * | 1988-08-16 | 1991-10-08 | Bayer Aktiengesellschaft | Sinterable pulverulent raw material based on aluminum titanate, a process for its preparation and the sintered bodies produced therefrom and their use |
| JPH09152032A (ja) * | 1995-11-30 | 1997-06-10 | Aisin Seiki Co Ltd | レシプロエンジン用のアルミ合金ピストン |
| DE10128055A1 (de) * | 2001-06-01 | 2002-03-07 | Sgl Carbon Ag | Gleitpaarung für von Wasserdampf mit hohem Druck-und Temperaturniveau beaufschlagte Maschinenteile, vorzugsweise für Kolben-Zylinder-Anordnungen von Dampfmotoren |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4798771A (en) * | 1985-08-27 | 1989-01-17 | Intercal Company | Bearings and other support members made of intercalated graphite |
| US4961913A (en) * | 1988-08-31 | 1990-10-09 | Sullivan Thomas M | Production of ultrastructural ceramics |
| JP2948393B2 (ja) * | 1991-12-10 | 1999-09-13 | 日東電工株式会社 | 摺動材およびその成形に使用できる組成物 |
| US5927861A (en) * | 1995-03-13 | 1999-07-27 | Matsushita Electric Industrial Co., Ltd. | Motor assembly having ion implantation on sliding surfaces |
| DE10135477A1 (de) * | 2001-07-18 | 2003-02-06 | Tea Gmbh | Gleitpaarung mit einem auf der Basis von Kohlenstoff hergestellten Gleitelement |
-
2002
- 2002-05-28 DE DE10223836A patent/DE10223836C1/de not_active Expired - Fee Related
-
2003
- 2003-05-08 AU AU2003227736A patent/AU2003227736A1/en not_active Abandoned
- 2003-05-08 US US10/515,798 patent/US7399538B2/en not_active Expired - Fee Related
- 2003-05-08 WO PCT/EP2003/004817 patent/WO2003100300A1/de not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB726182A (en) * | 1951-11-23 | 1955-03-16 | Glacier Co Ltd | Improvements in or relating to plain bearings |
| US4657683A (en) * | 1985-03-15 | 1987-04-14 | Aeplc | Bearing material of polytetrafluroethylene incorporating a filler |
| US5055434A (en) * | 1988-08-16 | 1991-10-08 | Bayer Aktiengesellschaft | Sinterable pulverulent raw material based on aluminum titanate, a process for its preparation and the sintered bodies produced therefrom and their use |
| JPH09152032A (ja) * | 1995-11-30 | 1997-06-10 | Aisin Seiki Co Ltd | レシプロエンジン用のアルミ合金ピストン |
| DE10128055A1 (de) * | 2001-06-01 | 2002-03-07 | Sgl Carbon Ag | Gleitpaarung für von Wasserdampf mit hohem Druck-und Temperaturniveau beaufschlagte Maschinenteile, vorzugsweise für Kolben-Zylinder-Anordnungen von Dampfmotoren |
Non-Patent Citations (1)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 1997, no. 10 31 October 1997 (1997-10-31) * |
Also Published As
| Publication number | Publication date |
|---|---|
| DE10223836C1 (de) | 2003-07-31 |
| US7399538B2 (en) | 2008-07-15 |
| US20060099434A1 (en) | 2006-05-11 |
| AU2003227736A1 (en) | 2003-12-12 |
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