EP0396025A1 - Piston for axial piston pump - Google Patents
Piston for axial piston pump Download PDFInfo
- Publication number
- EP0396025A1 EP0396025A1 EP90107978A EP90107978A EP0396025A1 EP 0396025 A1 EP0396025 A1 EP 0396025A1 EP 90107978 A EP90107978 A EP 90107978A EP 90107978 A EP90107978 A EP 90107978A EP 0396025 A1 EP0396025 A1 EP 0396025A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- piston
- ceramic
- face
- joining surface
- pump piston
- 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
- 239000000919 ceramic Substances 0.000 claims abstract description 16
- 239000007769 metal material Substances 0.000 claims abstract description 4
- 229910000679 solder Inorganic materials 0.000 description 7
- 238000005476 soldering Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 230000035882 stress Effects 0.000 description 3
- 239000010936 titanium Substances 0.000 description 3
- 229910052719 titanium Inorganic materials 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 2
- PCEXQRKSUSSDFT-UHFFFAOYSA-N [Mn].[Mo] Chemical compound [Mn].[Mo] PCEXQRKSUSSDFT-UHFFFAOYSA-N 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 229910052735 hafnium Inorganic materials 0.000 description 2
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 2
- 239000011133 lead Substances 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 229910052726 zirconium Inorganic materials 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- -1 ferrous metals Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000001465 metallisation Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000011135 tin Substances 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 238000009736 wetting Methods 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/14—Pistons, piston-rods or piston-rod connections
- F04B53/144—Adaptation of piston-rods
- F04B53/147—Mounting or detaching of piston rod
Definitions
- the invention relates to a pump piston for axial piston pumps consisting of a ceramic piston and a drive element made of metallic material.
- Non-positive, positive and material connections between ceramic and metallic materials are known.
- the adhesives that can be used are subject to signs of aging, which result in the connection becoming brittle.
- the use of bonded connections is limited because the organic adhesives decompose at higher temperatures. In some cases, adhesive bonds cannot be used due to their low resistance to some chemicals. Clamped or shrunk connections can loosen during the service life due to settlement phenomena.
- Positive connections have the disadvantage that geometrically complex parts have to be manufactured with the highest precision. This requirement complicates the manufacture of ceramic components in particular.
- the ceramic material is metallized with a molybdenum manganese mixture or tungsten and then connected with suitable solders in a further work step with one or more metal partners.
- Direct soldering without prior metallization is also known.
- solders with titanium, zirconium or hafnium components must be used for this.
- the use of metals that are adapted in their expansion behavior of the ceramic is required or special constructions are used, which also lead to a reduction in stress.
- the constructions can only withstand little mechanical stress.
- a pump piston which is characterized in that the ceramic piston has an end face, of which 20 to 80%, in particular 25 to 60%, is designed as a joining surface for a soldered connection to the drive element.
- the ceramic-metal connection can be made by active soldering or passive soldering.
- solders with proportions of titanium, zirconium, hafnium and the like are suitable; for the latter solders based on precious metals, copper or alloys thereof or based on lead, tin, zinc or alloys.
- the soldering gaps can be smaller than 500 ⁇ m.
- the joining surface In the case of passive soldering, the joining surface must be metallized, for which molybdenum, molybdenum-manganese or tungsten is suitable.
- the metallized surfaces can be provided with a nickel layer.
- the ceramic piston can consist of aluminum oxide with Al2O3 - held between 80 and 100% - or silicon carbide; the drive part made of ferrous or non-ferrous metals, such as alloyed or unalloyed steel, austenite, brass, copper, titanium or the like.
- the figure shows a pump piston in which the ceramic piston (1), which is partially cut, is connected to the metallic drive part (3) by soldering.
- the joining surface or the soldering surface (2) is annular in this example.
- the table shows the adhesive strength of the solder joint depending on the size of the joint surface. All tests were carried out on solder connections of steel disks (ST 52) with 27 mm diameter and 3 mm thickness and ceramic pistons (aluminum oxide) with 20 mm diameter.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Bei dem Pumpenkolben für Axialkolbenpumpen mit Keramikkolben (1) und Antriebselement (3) aus metallischem Werkstoff weist der Keramikkolben (1) eine Stirnfläche auf, von der 20 bis 80 % als Fügefläche für eine Lötverbindung (2) mit dem Antriebselement (3) ausgebildet ist.In the case of the pump piston for axial piston pumps with ceramic piston (1) and drive element (3) made of metallic material, the ceramic piston (1) has an end face, of which 20 to 80% is designed as a joining surface for a soldered connection (2) to the drive element (3) .
Description
Die Erfindung betrifft einen Pumpenkolben für Axialkolbenpumpen bestehend aus einem Keramikkolben und einem Antriebselement aus metallischem Werkstoff.The invention relates to a pump piston for axial piston pumps consisting of a ceramic piston and a drive element made of metallic material.
Kraftschlüssige, formschlüssige und stoffschlüssige Verbindungen zwischen keramischen und metallischen Werkstoffen sind bekannt. Die beiden ersten Verbindungsarten weisen jedoch verschiedene Nachteile auf. So unterliegen die verwendbaren Kleber Alterungserscheinungen, die eine Versprödung der Verbindung zur Folge haben. Der Einsatz geklebter Verbindungen ist beschränkt, da sich die organischen Kleber bei höheren Temperaturen zersetzen. In einigen Fällen können Klebeverbindungen auch aufgrund ihrer gegenüber manchen Chemikalien geringen Beständigkeit nicht eingesetzt werden. Geklemmte oder geschrumpfte Verbindungen können sich während der Betriebsdauer durch Setzungserscheinungen lockern. Formschlüssige Verbindungen haben den Nachteil, daß geometrisch komplizierte Teile mit höchster Präzision gefertigt werden müssen. Diese Forderung erschwert insbesondere die Fertigung der keramischen Komponenten.Non-positive, positive and material connections between ceramic and metallic materials are known. However, the first two types of connection have different disadvantages. The adhesives that can be used are subject to signs of aging, which result in the connection becoming brittle. The use of bonded connections is limited because the organic adhesives decompose at higher temperatures. In some cases, adhesive bonds cannot be used due to their low resistance to some chemicals. Clamped or shrunk connections can loosen during the service life due to settlement phenomena. Positive connections have the disadvantage that geometrically complex parts have to be manufactured with the highest precision. This requirement complicates the manufacture of ceramic components in particular.
Bei der stoffschlüssigen Verbindung wird der keramische Werkstoff mit einer Molybdänmanganmischung oder Wolfram metallisiert und anschließend mit geeigneten Loten in einem weiteren Arbeitsgang mit einem oder mehreren Metallpartnern verbunden. Direktes Löten ohne vorherige Metallisierung ist ebenfalls bekannt. Hierfür müssen allerdings Lote mit Titan, Zirkonium oder Hafnium-Anteilen verwendet werden. Zur Reduzierung der zwischen Metall und Keramik auftretenden Spannungen, die durch unterschiedliche Ausdehnungskoeffizienten hervorgerufen werden, ist allerdings die Verwendung von Metallen erforderlich, die in ihrem Ausdehnungsverhalten der Keramik angepaßt sind oder es werden spezielle Konstruktionen verwendet, die ebenfalls zu einem Spannungsabbau führen. Die Konstruktionen ertragen jedoch nur geringe mechanische Beanspruchung.In the integral connection, the ceramic material is metallized with a molybdenum manganese mixture or tungsten and then connected with suitable solders in a further work step with one or more metal partners. Direct soldering without prior metallization is also known. However, solders with titanium, zirconium or hafnium components must be used for this. To reduce the stresses between metal and ceramic caused by different Expansion coefficients are caused, however, the use of metals that are adapted in their expansion behavior of the ceramic is required or special constructions are used, which also lead to a reduction in stress. However, the constructions can only withstand little mechanical stress.
Die aufgezeigten Mängel werden durch einen Pumpenkolben behoben, der dadurch gekennzeichnet ist, daß der Keramikkolben eine Stirnfläche aufweist, von der 20 bis 80 %, insbesondere 25 bis 60 % als Fügefläche für eine Lötverbindung mit dem Antriebselement ausgebildet ist.The shortcomings indicated are remedied by a pump piston, which is characterized in that the ceramic piston has an end face, of which 20 to 80%, in particular 25 to 60%, is designed as a joining surface for a soldered connection to the drive element.
Dabei spielt es keine Rolle, welche Teilflächen der Stirnfläche als Fügefläche ausgebildet sind. Hierfür eignen sich einzelne, individuelle Bereiche oder ringförmige Bereiche der Stirnfläche gleichermaßen, wobei diese Bereiche sich als erhabene oder zurückgesetzte Flächen von der Stirnfläche absetzen können. Die Verbindung Keramik-Metall kann durch Aktivlöten oder Passivlöten erfolgen. Für ersteres eignen sich Lote mit Anteilen von Titan, Zirkonium, Hafnium und ähnlichem; für letzteres Lote auf der Basis von Edelmetallen, Kupfer oder Legierungen hieraus oder auf Basis von Blei, Zinn, Zink oder Legierungen hieraus. Die Lötspalte können kleiner als 500 µm sein. Bei passivem Löten muß die Fügefläche metallisiert werden, wofür sich Molybdän, Molybdän-Mangan oder Wolfram eignet. Um die Benetzung für das Lot zu verbessern, können die metallisierten Flächen mit einer Nickelschicht versehen werden. Der Keramikkolben kann aus Aluminiumoxid mit Al₂O₃ - gehalten zwischen 80 und 100 % - oder Siliziumcarbid bestehen; der Antriebsteil aus Eisen - oder Nichteisenmetallen, wie z.B. legiertem oder unlegiertem Stahl, Austenit, Messing, Kupfer, Titan oder ähnlichem.It does not matter which partial areas of the end face are designed as joining surfaces. Individual, individual areas or annular areas of the end face are equally suitable for this purpose, these areas being able to stand out from the end face as raised or recessed areas. The ceramic-metal connection can be made by active soldering or passive soldering. For the former, solders with proportions of titanium, zirconium, hafnium and the like are suitable; for the latter solders based on precious metals, copper or alloys thereof or based on lead, tin, zinc or alloys. The soldering gaps can be smaller than 500 µm. In the case of passive soldering, the joining surface must be metallized, for which molybdenum, molybdenum-manganese or tungsten is suitable. In order to improve the wetting for the solder, the metallized surfaces can be provided with a nickel layer. The ceramic piston can consist of aluminum oxide with Al₂O₃ - held between 80 and 100% - or silicon carbide; the drive part made of ferrous or non-ferrous metals, such as alloyed or unalloyed steel, austenite, brass, copper, titanium or the like.
Die Figur zeigt einen Pumpenkolben, bei dem der Keramikkolben (1), der teilweise geschnitten ist, durch Löten mit dem metallischen Antriebsteil (3) verbunden ist. Die Fügefläche bzw. die Lötfläche (2) ist in diesem Beispiel ringförmig ausgebildet.The figure shows a pump piston in which the ceramic piston (1), which is partially cut, is connected to the metallic drive part (3) by soldering. The joining surface or the soldering surface (2) is annular in this example.
Der Tabelle kann die Haftfestigkeit der Lötverbindung in Abhängigkeit von der Größe der Fügefläche entnommen werden. Alle Versuche wurden an Lötverbindungen von Stahlscheiben (ST 52) mit 27 mm Durchmesser und 3 mm Dicke und Keramikkolben (Aluminiumoxid) mit 20 mm Durchmesser durchgeführt.
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3914333 | 1989-04-29 | ||
| DE3914333A DE3914333A1 (en) | 1989-04-29 | 1989-04-29 | PUMP PISTON FOR AXIAL PISTON PUMPS |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0396025A1 true EP0396025A1 (en) | 1990-11-07 |
| EP0396025B1 EP0396025B1 (en) | 1994-06-01 |
Family
ID=6379836
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP90107978A Expired - Lifetime EP0396025B1 (en) | 1989-04-29 | 1990-04-26 | Piston for axial piston pump |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US5094150A (en) |
| EP (1) | EP0396025B1 (en) |
| DE (2) | DE3914333A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014016059A1 (en) | 2014-10-29 | 2016-05-04 | VDM Metals GmbH | Method for joining steel components with a wear layer |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE9209365U1 (en) * | 1992-07-11 | 1993-08-19 | Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg | Plunger, especially for high pressure pumps |
| US5450784A (en) * | 1993-09-28 | 1995-09-19 | Detroit Diesel Corporation | Electroplated piston skirt for improved scuff resistance |
| WO1996031683A1 (en) * | 1995-04-04 | 1996-10-10 | United States Of America, Represented By The S | Carbon-carbon cylinder block |
| US5890413A (en) * | 1997-01-08 | 1999-04-06 | Generac Portable Products, Llc | Piston for water pump and related method |
| US5775203A (en) * | 1997-01-28 | 1998-07-07 | Cummins Engine Company, Inc. | High pressure fuel pump assembly |
| JP2001050137A (en) * | 1999-08-06 | 2001-02-23 | Mitsubishi Electric Corp | Fuel supply pump |
| DE102005045523A1 (en) * | 2005-09-23 | 2007-03-29 | Schaeffler Kg | High pressure radial pump piston for use in internal combustion engine, has groove base with diameter that is larger than diameter of inner drill hole, so that force-fit and form-fit connection is formed between groove base and piston |
| EP2111549A1 (en) * | 2007-02-14 | 2009-10-28 | Agilent Technologies, Inc. | Hplc pumping apparatus with silicon carbide piston and/or working chamber |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122345A1 (en) * | 1981-06-05 | 1982-12-30 | Rosenthal Technik Ag, 8672 Selb | Complex ceramic composite hollow bodies and process for the production thereof and use thereof |
| EP0083834B1 (en) * | 1981-12-09 | 1986-05-07 | Ngk Insulators, Ltd. | Metal ceramics composites and a method for producing said composites |
| EP0215554A1 (en) * | 1985-07-22 | 1987-03-25 | Ngk Insulators, Ltd. | Method of producing brazing metals |
| EP0111989B1 (en) * | 1982-12-03 | 1987-08-19 | Ngk Insulators, Ltd. | An engine part having a ceramics member and a metallic member joined together |
| DE3702446A1 (en) * | 1987-01-28 | 1988-08-11 | Kaercher Gmbh & Co Alfred | HIGH PRESSURE CLEANING DEVICE WITH A SWASHPLATE PISTON PUMP |
| US4778345A (en) * | 1985-03-15 | 1988-10-18 | Ngk Spark Plug Co., Ltd. | Turbine rotor |
| EP0323207A1 (en) * | 1987-12-28 | 1989-07-05 | Ngk Insulators, Ltd. | Joined metal-ceramic assembly method of preparing the same |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH378765A (en) * | 1960-04-11 | 1964-06-15 | Cerberus Ag | Method for joining ceramic material to metal by soldering |
| US3302961A (en) * | 1961-04-14 | 1967-02-07 | Philips Corp | Compression ceramic-metal seal |
| US3402645A (en) * | 1966-10-03 | 1968-09-24 | Union Carbide Corp | Piston assembly |
| GB1574804A (en) * | 1976-05-20 | 1980-09-10 | Chloride Silent Power Ltd | Metal-to-ceramic seals |
| DE2851507C2 (en) * | 1978-11-29 | 1982-05-19 | Aktiengesellschaft Kühnle, Kopp & Kausch, 6710 Frankenthal | Isolation spring body and its use |
| US4225262A (en) * | 1979-01-11 | 1980-09-30 | Medtronic, Inc. | Niobium coatings for joining ceramic to metal |
| DE3238667A1 (en) * | 1982-10-19 | 1984-04-26 | Feldmühle AG, 4000 Düsseldorf | DISPLACEMENT PART OF A PISTON PUMP |
| DE3324661A1 (en) * | 1983-07-08 | 1985-01-17 | Brown, Boveri & Cie Ag, 6800 Mannheim | METHOD FOR DIRECTLY CONNECTING METAL TO CERAMIC |
| DE3469827D1 (en) * | 1983-08-23 | 1988-04-14 | Bbc Brown Boveri & Cie | Ceramic-metallic element |
| JPS6071579A (en) * | 1983-09-28 | 1985-04-23 | 株式会社日立製作所 | Method of bonding alumina and metal |
| JPS60101201A (en) * | 1983-11-08 | 1985-06-05 | Ngk Spark Plug Co Ltd | Joining structure in turbine shaft |
| US4604945A (en) * | 1983-12-30 | 1986-08-12 | Gte Products Corporation | Thermally insulated piston |
| US4722632A (en) * | 1984-05-21 | 1988-02-02 | Oerlikron-Buehrle Ag | Tensilely stressed window usable with infrared detector |
| SU1215908A1 (en) * | 1984-07-13 | 1986-03-07 | Новосибирский электротехнический институт | Method of soldering parts of unsimilar materials |
| JPS61197476A (en) * | 1985-02-26 | 1986-09-01 | 株式会社東芝 | Composite body and manufacture |
| US4741254A (en) * | 1986-06-12 | 1988-05-03 | Taylor Julian S | Pump plunger |
| EP0264122B1 (en) * | 1986-10-17 | 1992-03-18 | Hitachi, Ltd. | Method of producing a composite structure for a semiconductor device |
| EP0286335B2 (en) * | 1987-04-02 | 2001-10-17 | Kabushiki Kaisha Toshiba | Air-tight ceramic container |
| US4890783A (en) * | 1988-11-29 | 1990-01-02 | Li Chou H | Ceramic-metal joining |
-
1989
- 1989-04-29 DE DE3914333A patent/DE3914333A1/en not_active Withdrawn
-
1990
- 1990-04-10 US US07/507,199 patent/US5094150A/en not_active Expired - Fee Related
- 1990-04-26 EP EP90107978A patent/EP0396025B1/en not_active Expired - Lifetime
- 1990-04-26 DE DE59005878T patent/DE59005878D1/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3122345A1 (en) * | 1981-06-05 | 1982-12-30 | Rosenthal Technik Ag, 8672 Selb | Complex ceramic composite hollow bodies and process for the production thereof and use thereof |
| EP0083834B1 (en) * | 1981-12-09 | 1986-05-07 | Ngk Insulators, Ltd. | Metal ceramics composites and a method for producing said composites |
| EP0111989B1 (en) * | 1982-12-03 | 1987-08-19 | Ngk Insulators, Ltd. | An engine part having a ceramics member and a metallic member joined together |
| US4778345A (en) * | 1985-03-15 | 1988-10-18 | Ngk Spark Plug Co., Ltd. | Turbine rotor |
| EP0215554A1 (en) * | 1985-07-22 | 1987-03-25 | Ngk Insulators, Ltd. | Method of producing brazing metals |
| DE3702446A1 (en) * | 1987-01-28 | 1988-08-11 | Kaercher Gmbh & Co Alfred | HIGH PRESSURE CLEANING DEVICE WITH A SWASHPLATE PISTON PUMP |
| EP0323207A1 (en) * | 1987-12-28 | 1989-07-05 | Ngk Insulators, Ltd. | Joined metal-ceramic assembly method of preparing the same |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014016059A1 (en) | 2014-10-29 | 2016-05-04 | VDM Metals GmbH | Method for joining steel components with a wear layer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE59005878D1 (en) | 1994-07-07 |
| DE3914333A1 (en) | 1990-10-31 |
| US5094150A (en) | 1992-03-10 |
| EP0396025B1 (en) | 1994-06-01 |
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