EP1294512B1 - Verfahren zum sintern von aluminium-basierten sinterteilen sowie vorrichtung zum sintern von aluminium-basierten sinterteilen - Google Patents
Verfahren zum sintern von aluminium-basierten sinterteilen sowie vorrichtung zum sintern von aluminium-basierten sinterteilen Download PDFInfo
- Publication number
- EP1294512B1 EP1294512B1 EP01956435A EP01956435A EP1294512B1 EP 1294512 B1 EP1294512 B1 EP 1294512B1 EP 01956435 A EP01956435 A EP 01956435A EP 01956435 A EP01956435 A EP 01956435A EP 1294512 B1 EP1294512 B1 EP 1294512B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sintering
- area
- parts
- sintered
- inert gas
- 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.)
- Expired - Lifetime
Links
- 238000005245 sintering Methods 0.000 title claims abstract description 93
- 238000000034 method Methods 0.000 title claims abstract description 23
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 19
- 239000004411 aluminium Substances 0.000 title claims abstract 4
- 239000011261 inert gas Substances 0.000 claims abstract description 23
- 239000012298 atmosphere Substances 0.000 claims abstract description 15
- 238000001816 cooling Methods 0.000 claims abstract description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000001301 oxygen Substances 0.000 claims abstract description 7
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 15
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 11
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000011230 binding agent Substances 0.000 claims description 3
- 238000010257 thawing Methods 0.000 abstract 1
- 239000000843 powder Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- 238000005192 partition Methods 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 150000002835 noble gases Chemical class 0.000 description 1
- 239000004482 other powder Substances 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Images
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
- 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
- B22F3/1003—Use of special medium during sintering, e.g. sintering aid
- B22F3/1007—Atmosphere
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B21/00—Open or uncovered sintering apparatus; Other heat-treatment apparatus of like construction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/02—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity of multiple-track type; of multiple-chamber type; Combinations of furnaces
- F27B9/029—Multicellular type furnaces constructed with add-on modules
-
- 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
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/06—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated
- F27B9/10—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity heated without contact between combustion gases and charge; electrically heated heated by hot air or gas
Definitions
- pure aluminum powder is not processed; rather, powder mixtures are preferred or alloyed powders, which are used in particular as Additional silicon included.
- All powders that are important Component containing aluminum are summarized here Called "aluminum-based" and are at risk of to form oxides during sintering.
- Aluminum sintered parts with a relatively high silicon content.
- silicon content the silicon content the the sintering process more difficult.
- Another difficulty when sintering aluminum-based powders consists of that they have a higher content of binding agents during the pressing process need.
- binding agents which simultaneously serve as a lubricant for the press tool
- a Make up a content of about 0.7 to 1.0 percent by weight need about 1.0 to 1.5 percent by weight to sinter aluminum Binding aids are added.
- These binding aids must be complete again before the sintering process be removed.
- all the requirements are Accuracy, reproducibility and homogeneity the temperature distribution when sintering aluminum-based Powder much more critical than when sintering other powder, especially iron. For this So far, aluminum sintered parts are not yet wherever this is used for and on would be desirable.
- the object of the present invention is a method of the type mentioned above, with the high quality Aluminum-based sintered parts can be produced.
- This object is achieved in that in process step b) an inert gas as the atmosphere is used, the oxygen content of a dew point of at most -40 ° C, and that the sintered parts by circulating the appropriately heated inert Gases heated to a sintering temperature of 560 - 620 ° C. become.
- the invention is therefore based on a double finding: Because the oxygen content of the inert atmosphere a maximum limit is guaranteed that there are no undesirable oxides in the sintering process can form, which adversely affects the sintering product influence. In that, unlike the subject of above-mentioned DE-PS 197 19 203 not the sintered parts by radiant heat but by convection heat be heated, for which the aforementioned high purity inert Gas is put into a circulation flow takes place the heating of the sintered parts with a homogeneity, that could not be achieved otherwise. Only in total These characteristics result in the high quality desired of the sintered products.
- Nitrogen is preferably used as the inert gas. This leaves is commercial with the required purity available and compared to noble gases, which are basically could also be considered, much cheaper.
- Another object of the present invention is a To design the device of the type mentioned at the beginning that they are going to manufacture high quality aluminum-based Sintered parts are suitable.
- the sintering area of a sintering device must have a length have at the selected transport speed corresponds to the time required for sintering. In general it is recommended if a longer sintering area has several has zones delimited by partitions, each a heating device with heat exchange surfaces, blower and have air equipment. This allows defined everywhere even with longer sintering areas Set flow conditions.
- the temperature of the inert gas in the direction of movement successive zones of the sintered area differ.
- the design leads to homogeneity of the temperature profile of the invention, in which the flow around the sintered parts in zones one behind the other in the direction of movement of the sintered area is different. So they can Sintered parts, for example, once from bottom to top, the other time from top to bottom, the one time from one rotating clockwise Flow, the other time from one moving seen flowing counter-clockwise become.
- a nozzle plate is provided over which the circulating inert gas is opposed the sintered parts is straightened. This allows the flow in the area of the sintered parts and thus also the warming that the sintered parts experience continues equalize.
- FIG. 1b shows a sintering furnace in vertical section, designed for sintering aluminum-based sintered parts is.
- the entire sintering furnace is divided into different zones or Area divided into the mapping in Figure la Figure 1b are shown schematically.
- the ones to be sintered Parts 23 are made using a transport system T in the continuous run in the drawing led from left to right through the sintering furnace.
- the Sintering furnace contains one after the other, as seen in the conveying direction an inlet area 8, a debinding area 3, a Sintering area 2, a cooling area 4 and an outlet area 9.
- Each of these areas 2, 3, 4, 8, 9 of the sintering furnace is a separately driven and controllable conveyor Associated with T2 through T9, which together form the above Form conveyor system T.
- locks 7 are arranged between these areas, which each have two mechanical gates 6. These gates 6 are each in a front shaft of the corresponding Area 3, 2, 4, 9 arranged and preferably vertically movable, each lock 7 also separately controllable and adjustable conveyor (in the drawing not shown) is assigned.
- Debinding area 3 is designed as a muffle furnace. That is, above and below the movement path of the to sintered parts there is a partition 20 through electric heating elements 21 or the like at temperature brought, essentially by radiant heat the sintered parts conveyed past are heated and from them drives out the binding aids.
- Figure 2 shows a section perpendicular to the direction of movement of the sintered parts in the area of the sintering zone 2.
- the housing 22 provided with insulation is on all places where air can enter the outside atmosphere or the escape of gases the interior atmosphere would be possible, well sealed.
- the transport system T2 shown, the exact construction deliberately open is left. It is characterized by good gas permeability in the vertical direction; particularly suitable are, for example, roller or link belt systems.
- the sintered parts 23 conveyed perpendicular to the plane of Figure 2, in illustrated example on a carrier plate 24, the ideally well permeable even in the vertical direction should be.
- Chamber 26 contains the heat exchanger surfaces 28 an indirect heater 29, for example electrically can be operated.
- Located at the top of chamber 26 air baffles with a central opening 30, which represents the suction opening of a blower 31.
- the fan 31 is by a on the top of the Housing 22 attached motor 32 driven.
- the outlet side of the fan 31 stands over an opening 33 with the chamber 27 on the right in FIG. 2 of the interior of the housing 22 in connection.
- This chamber 27 is at her lower end, just above the sintered parts 23, through a nozzle plate 34 completed.
- the entire sintered area 2 contains, in particular FIG. 1b shows a plurality of identical, sintering zones constructed in the manner described above, which are separated from one another by partitions 35.
- the partitions 35 essentially only contain openings, which just allow the passage of the sintered parts 23.
- the cooling area 4 is essentially the same Designed as in DE-PS 197 19 203.3 is described. The way in which the sintered parts temperature controlled and cooled in this area are not of interest in the present context. This is also shown in the drawing a kind of "muffle furnace” with a similar construction, like it is used in the debinding zone 3.
- the pressed sintered parts 23 are in the inlet area 8th placed on the conveyor system T8, from this on a simple gate 6 is introduced into the debinding zone 3 and taken over by the T3 conveyor system there. With help the radiated heat emitted by the heated partition walls 20 the binding aids from the sintered parts 23 expelled and essentially subtracted. Since all inner surfaces in the debinding zone 3 are hot, there is a risk of "sooting up" No binding aids.
- the sintered parts 23 occur individually or in small groups next to and / or one above the other Sintered parts 23 through the first gate of the Lock 7 that between the Entbind réelles Scheme 3 and the sintered area 2 lies in the space between the two gates of this lock 7.
- the sintered parts 23 are thereby, as already mentioned above, from its own transport system T7 promoted, the speed of which varies the speed in the other areas of the sintering furnace can make a brief distinction to the overall system hold.
- the gate adjacent to the sintered area 2 opens the lock 7.
- the sintered parts 23 are now on the Transfer conveyor system T2 and from it to a heating zone which, for example, are passed through the extends through the first three zones of the sintered region 2.
- a heating zone which, for example, are passed through the extends through the first three zones of the sintered region 2.
- the actual sintering at a temperature between 560 and 620 ° C instead.
- the temperature of the existing in the individual zones Gas is released by one near the movement path of the sintered parts 23 arranged temperature sensor 40 (cf. FIG. 2) who monitors the via a control loop Heater 29 controls.
- All zones of the sintering area 2 are, as already above noted, essentially in that shown in Figure 2 Set up in such a way and with high purity nitrogen as inert Atmosphere filled.
- the oxygen content in this inert atmosphere may not exceed a dew point of - correspond to 40 ° C.
- a fan 31 Maintain nitrogen atmosphere, which, in the area the left chamber 26 coming from below, on the heat exchanger surfaces 28 of the respective heater 29 by the chamber 26 to the blower 31, from there into the chamber 27 and through the nozzle plate 34 onto the sintered parts 23 is directed.
- These hot nitrogen gases flow around the sintered parts 23 penetrate the carrier plate 24 and the transport system T22 and from there again supplied to the heater 29, whereby the circuit is closed is.
- the sintered parts pass through 23 between the sintering area 2 and the cooling area 4 lying, two gates including lock 7, where appropriate the same operations take place as above for between the debinding area 3 and the sintering area 2 lying lock 7 was explained.
- the cooling area 4 finds a controlled cooling of the finished sintered parts to a temperature at which the Sintered parts 23 via a further lock 7 from the Exit cooling area 4 and finally in the outlet area 9 removed or closed by the local conveyor system T9 can be transported to another location.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Powder Metallurgy (AREA)
- Tunnel Furnaces (AREA)
Description
eine Vorrichtung zum Sintern von Aluminium-basierten Sinterteilen mit
- a) einem Entbinderungsbereich, in dem die Sinterteile durch Erwärmen von Bindehilfsmitteln befreit werden;
- b) einem Sinterbereich, in dem die Sinterteile durch Erwärmen auf Sintertemperatur einem Sinterungsprozeß unterzogen werden und der hierzu entsprechende Heizeinrichtungen aufweist;
- c) einem Kühlbereich, in dem die Sinterteile nach dem Sinterungsprozeß kontrolliert abkühlbar sind,
- d) einem Transportsystem, welches die Sinterteile kontinuierlich durch die verschiedenen Bereiche führt;
- e) Schleusen, welche die Atmosphären der verschiedenen Bereiche getrennt halten und die von den Sinterteilen beim Verlassen eines bestimmten Bereiches durchquert werden müssen.
- Figur 1
- schematisch einen Sinterofen zum Sintern von Aluminium-basierten Sinterteilen;
- Figur 2
- einen Schnitt in vergrößertem Maßstab durch den Sinterofen von Figur 1 im Bereich der Sinterzone.
Claims (10)
- Verfahren zum Sintern von Aluminium-basierten Sinterteilen wobei die Sinterteile im kontinuierlichen Durchlauf durch einen Sinterofen geführt werden, bei welchem in jeweils voneinander getrennten Atmosphären in räumlich getrennten Bereichen die folgenden Schritte durchgeführt werden:dadurch gekennzeichnet, daßa) die Sinterteile werden entbindert;b) die Sinterteile werden auf Sintertemperatur gebracht und auf dieser eine bestimmte Zeit gehalten;c) die Sinterteile werden kontrolliert abgekühlt,
im Verfahrensschritt b) als Atmosphäre ein inertes Gas eingesetzt wird, dessen Sauerstoffgehalt einem Taupunkt von höchstens -40° C entspricht, und daß die Sinterteile (23) durch Zirkulieren des entsprechend erhitzten inerten Gases auf eine Sintertemperatur von 560 bis 620° C erwärmt werden. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß als inertes Gas Stickstoff verwendet wird.
- Vorrichtung zum Sintern von Aluminium-basierten Sinterteilen mita) einem Entbinderungsbereich (3), in dem die zu sinternden Teile durch Erwärmen von Bindehilfsmitteln befreit werden;b) einem Sinterbereich (2), in dem die Sinterteile durch Erwärmen auf Sintertemperatur einem Sinterungsprozeß unterzogen werden und der hierzu entsprechende Heizeinrichtungen aufweist;c) einem Kühlbereich (4), in dem die Sinterteile nach dem Sinterungsprozeß kontrolliert abkühlbar sind;d) einem Transportsystem (T2-T4, T7-T9), welches die Sinterteile kontinuierlich durch die verschiedenen Bereiche führt;e) Schleusen (7), welche die Atmosphären der verschiedenen Bereiche getrennt halten und die von den Sinterteilen beim Verlassen eines bestimmten Bereiches durchquert werden müssen, wobei der Sinterbereich mit einer Inertgasquelle verbunden ist,
dadurch gekennzeichnet, daßf) die Atmosphäre im Sinterbereich (2) von einem inerten Gas gebildet wird, dessen Sauerstoffgehalt einem Taupunkt von höchstens -40° C entspricht;g) der Sinterbereich (2) mindestens eine Heizeinrichtung für die Sinterteile (23) aufweist, die indirekt beheizte Wärmetauschflächen (28), ein Gebläse (31) und eine Luftleiteinrichtung (25) derart umfaßt, daß sich eine die Sinterteile (23) umfließende Zirkulationsströmung des inerten Gases einstellen läßt. - Vorrichtung nach Anspruch 3, dadurch gekennzeichnet, daß das inerte Gas Stickstoff ist.
- Vorrichtung nach Anspruch 3 oder 4, dadurch gekennzeichnet, daß das inerte Gas eine Temperatur von 560 bis 620° C aufweist.
- Vorrichtung nach einen der Ansprüche 2 bis 5, dadurch gekennzeichnet, daß der Sinterbereich (2) mehrere durch Trennwände (35) abgegrenzte Zonen aufweist, die jeweils eine Heizeinrichtung mit Wärmetauschflächen (28), Gebläse (31) und Luftleiteinrichtung (25) aufweisen.
- Vorrichtung nach Anspruch 6, dadurch gekennzeichnet, daß die Temperatur des inerten Gases in in Bewegungsrichtung hintereinander liegenden Zonen des Sinterbereiches (2) unterschiedlich ist.
- Vorrichtung nach Anspruch 6 oder 7, dadurch gekennzeichnet, daß die Umströmung der Sinterteile (23) in in Bewegungsrichtung hintereinander liegenden Zonen des Sinterbereichs (2) unterschiedlich ist.
- Vorrichtung nach einem der Ansprüche 3 bis 8, dadurch gekennzeichnet, daß eine Düsenplatte (34) vorgesehen ist, über welche das zirkulierende inerte Gas gegen die Sinterteile (23) gerichtet wird.
- Vorrichtung nach einem der Ansprüche 3 bis 9, dadurch gekennzeichnet, daß die Tore der Schleusen (7), die dem Einlaß und/oder dem Auslaß des Sinterbereichs (2) benachbart sind, nicht vollständig dicht schließbar sind und das inerte Gase im Sinterbereich (2) unter Überdruck steht.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2000130514 DE10030514C1 (de) | 2000-06-28 | 2000-06-28 | Vorrichtung zum Sintern von aluminiumbasierten Sinterteilen |
| DE10030514 | 2000-06-28 | ||
| PCT/EP2001/005443 WO2002000377A1 (de) | 2000-06-28 | 2001-05-12 | Verfahren zum sintern von aluminium-basierten sinterteilen sowie vorrichtung zum sintern von aluminium-basierten sinterteilen |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1294512A1 EP1294512A1 (de) | 2003-03-26 |
| EP1294512B1 true EP1294512B1 (de) | 2004-02-11 |
Family
ID=7646471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01956435A Expired - Lifetime EP1294512B1 (de) | 2000-06-28 | 2001-05-12 | Verfahren zum sintern von aluminium-basierten sinterteilen sowie vorrichtung zum sintern von aluminium-basierten sinterteilen |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US6821478B2 (de) |
| EP (1) | EP1294512B1 (de) |
| AT (1) | ATE259267T1 (de) |
| AU (1) | AU2001278425A1 (de) |
| DE (1) | DE10066005C2 (de) |
| ES (1) | ES2214435T3 (de) |
| WO (1) | WO2002000377A1 (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10332071B4 (de) * | 2003-07-10 | 2008-10-16 | BLÜM, Heinz-Jürgen | Verfahren und Vorrichtung zum kombinierten Entbindern und Sintern von Formteilen |
| DE102005024623B4 (de) * | 2005-05-30 | 2007-08-23 | Beru Ag | Verfahren zum Herstellen eines keramischen Glühstiftes für eine Glühkerze |
| CN100432609C (zh) * | 2005-11-08 | 2008-11-12 | 青岛科技大学 | 三室式智能周期性可控气氛炉及连续生产纳米材料的方法 |
| DE102007057237A1 (de) * | 2007-11-26 | 2009-05-28 | Umicore Ag & Co. Kg | Tunnelofen für die Temperaturbehandlung von Waren |
| DE102008013555A1 (de) * | 2008-03-11 | 2009-10-15 | Straumann Holding Ag | Sinterofen für Dentalpräparate und Verfahren zum Sintern von Dentalpräparaten |
| CN112050628B (zh) * | 2020-09-15 | 2022-06-24 | 溆浦易锋精细瓷业有限责任公司 | 一种利用余热排蜡的窑炉 |
| US12146711B2 (en) | 2021-03-26 | 2024-11-19 | University Of Maryland, College Park | High temperature sintering furnace systems and methods |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3232754A (en) * | 1961-11-07 | 1966-02-01 | Alloys Res & Mfg Corp | Porous metallic bodies and fabrication methods therefor |
| GB1115465A (en) * | 1965-06-08 | 1968-05-29 | Alloys Res & Mfg Corp | Powder metallurgy |
| NO135672C (de) * | 1972-11-21 | 1977-05-11 | Prolizenz Ag | |
| US4113240A (en) * | 1976-01-16 | 1978-09-12 | P. R. Mallory & Co. Inc. | Continuous open-ended sintering furnace system |
| JPS589806B2 (ja) * | 1977-03-30 | 1983-02-23 | 住友電気工業株式会社 | 粉末冶金用焼結炉 |
| US4661315A (en) * | 1986-02-14 | 1987-04-28 | Fine Particle Technology Corp. | Method for rapidly removing binder from a green body |
| US5048801A (en) * | 1989-07-12 | 1991-09-17 | Risi Industries | Sintering furnace |
| US5176740A (en) * | 1989-12-29 | 1993-01-05 | Showa Denko K.K. | Aluminum-alloy powder, sintered aluminum-alloy, and method for producing the sintered aluminum-alloy |
| US5147083A (en) * | 1991-09-25 | 1992-09-15 | General Motors Corporation | Method and apparatus for convection brazing of aluminum heat exchangers |
| DE4234855B4 (de) * | 1991-10-18 | 2005-02-24 | Denso Corp., Kariya | Aluminiumhartlötverfahren und Ofen dafür |
| DE19719203C2 (de) * | 1996-05-10 | 2000-05-11 | Eisenmann Kg Maschbau | Sinterverfahren für aus Metall-Pulver, insbesondere aus Mehrkomponentensystemen auf Basis von Eisen-Pulver, gepreßte Formteile sowie zur Durchführung des Verfahrens geeigneter Sinterofen |
| US5842109A (en) * | 1996-07-11 | 1998-11-24 | Ford Global Technologies, Inc. | Method for producing powder metal cylinder bore liners |
| JP4304749B2 (ja) * | 1998-02-24 | 2009-07-29 | 住友電気工業株式会社 | 半導体装置用部材の製造方法 |
-
2000
- 2000-06-28 DE DE10066005A patent/DE10066005C2/de not_active Expired - Fee Related
-
2001
- 2001-05-12 ES ES01956435T patent/ES2214435T3/es not_active Expired - Lifetime
- 2001-05-12 AU AU2001278425A patent/AU2001278425A1/en not_active Abandoned
- 2001-05-12 AT AT01956435T patent/ATE259267T1/de not_active IP Right Cessation
- 2001-05-12 EP EP01956435A patent/EP1294512B1/de not_active Expired - Lifetime
- 2001-05-12 US US10/312,652 patent/US6821478B2/en not_active Expired - Fee Related
- 2001-05-12 WO PCT/EP2001/005443 patent/WO2002000377A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| US6821478B2 (en) | 2004-11-23 |
| AU2001278425A1 (en) | 2002-01-08 |
| WO2002000377A1 (de) | 2002-01-03 |
| US20030143098A1 (en) | 2003-07-31 |
| DE10066005A1 (de) | 2002-04-04 |
| ES2214435T3 (es) | 2004-09-16 |
| ATE259267T1 (de) | 2004-02-15 |
| EP1294512A1 (de) | 2003-03-26 |
| DE10066005C2 (de) | 2003-04-10 |
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