EP1281459A2 - Procédé et dispositif de thixomoulage par injection pour la fabrication de pièces métalliques - Google Patents
Procédé et dispositif de thixomoulage par injection pour la fabrication de pièces métalliques Download PDFInfo
- Publication number
- EP1281459A2 EP1281459A2 EP02012651A EP02012651A EP1281459A2 EP 1281459 A2 EP1281459 A2 EP 1281459A2 EP 02012651 A EP02012651 A EP 02012651A EP 02012651 A EP02012651 A EP 02012651A EP 1281459 A2 EP1281459 A2 EP 1281459A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- metallic materials
- different composition
- alloy
- screw extruder
- storage zone
- 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
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
- B22D17/007—Semi-solid pressure die casting
Definitions
- the invention relates to the use of the thixotropic injection molding process for the production of metallic parts with improved properties and an apparatus for manufacturing such parts.
- alloys in particular aluminum or magnesium alloys in an inert atmosphere fed to a screw extruder, the alloy under Heating and shearing to a temperature between the solidus temperature and the liquidus temperature in a thixotropic State of the screw is fed to a storage zone, off which she is ejected with the screw over the nozzle.
- particulate metallic material in one Screw extruder while maintaining a temperature range between solidus and liquidus temperature and shear into a thixotropic state and from a storage zone to eject via a nozzle.
- a particulate metallic Material can be two metallic materials be supplied to different composition, namely pure metals such as Al, Zn and Mg, or metal alloys such as AlZn as master alloy to a magnesium alloy.
- pure metals such as Al, Zn and Mg
- metal alloys such as AlZn as master alloy to a magnesium alloy.
- pages 458 to 461 is the production of materials by mixing two semi-liquid alloys in known to a vessel.
- the object of the invention is to improve the properties of Thixos injection molded metal parts to improve.
- any components with graded alloy composition or composite materials, in particular coatings are produced.
- the component can be a tough core of one Alloy and a hard wear-resistant surface from the have other alloy, so z.
- B. a cylinder liner with a hard wear-resistant inner tread or a Rolling bearing ring with hard wear-resistant tread.
- a plain bearing with a sliding surface be made of a soft alloy and with a Support structure of high strength.
- the two metallic materials different Composition can be two different alloys or an alloy and a non-alloyed (pure) metal.
- the both materials of different composition also be two unalloyed metals. If a mutual Solubility is excluded, forms the melting temperature of the lower melting metal the solidus temperature and the melting temperature of the higher melting metal the Liquidus temperature of the phase mixture.
- the particulate metal alloys or the particulate metal is z. B. as granules or powder in front.
- each metal alloy or each Metal used.
- metal alloys with a low solidus and Liquidus temperature or pure metals with low Melting point preferred, the iron alloys do not attack.
- alloys for example, magnesium, aluminum, Copper and zinc alloys and as pure metals for example, magnesium, aluminum, copper and zinc used.
- the metallic materials of different composition be in an inert atmosphere the screw extruder supplied via at least one material feed opening, and the Material is heated and sheared to a temperature between the solidus temperature and the liquidus temperature heated and in the thixotropic state with the snail one Supplied from the storage zone, from which it is with the screw through the Nozzle or the like is ejected.
- the snail is usually for ejection in the axial direction back and forth educated.
- the particulate materials of different composition can first be mixed and then as a mixture the screw extruder be supplied. If the materials are different Composition alloys are, these are heated in the screw extruder to a temperature above the solidus and below the liquidus temperature of the Alloys lies. It should be noted that in the process z. By diffusion, convection and mixing changes the composition are possible.
- magnesium is used as the base material, it can be used according to the invention without the existing in the melt metallurgy Limitations can be used as alloying elements: Alkali and alkaline earth metals, eg. As potassium, beryllium and Calcium, Group 2B elements of the Periodic Table, such as Zinc, Group 3, such as boron, Group 3A, such as yttrium, or the lanthanides, such as cerium, of group 4, such as silicon, the Group 4A, such as titanium, zirconium or hafnium, Group 5A, such as Vanadium, group 6A, such as chromium or molybdenum, as well as ferrous metals, especially iron.
- Alkali and alkaline earth metals eg. As potassium, beryllium and Calcium
- the alloy or Pure metal granules or powder to the screw extruder as well be supplied separately.
- This can be a screw extruder be provided, each having a Materialzu 1500ö réelle for at least two materials of different composition having.
- the Materialzu 1500ö réelleen can be axially offset be arranged, the alloy with the lower solidus temperature or the metal with the low melting point the worm can be fed at a location that the storage zone is closer than the location where the alloy is with the higher solidus temperature or the metal with is supplied to the higher melting point.
- the material feed openings are in the same axial region at the material input end the snail, to the highest possible mixing and shearing to reach through the snail.
- the at least two metallic materials of different composition can be converted via a respective screw extruder into the thixotropic state and ejected via a common nozzle.
- the two screw extruders may have a common storage zone in which the semi-solid thixotropic metallic materials are mixed, which are formed in the respective screw extruder.
- at least the screw of one of the screw extruders can be designed to be displaceable back and forth.
- the amount of the respective metallic materials of different composition which are fed to one or, if several screw extruders are used, to each screw extruder can be controlled.
- a metering device upstream for example a slider which is located between the feed opening in the extruder housing and a funnel for receiving the respective particulate metallic material can be provided.
- a device with at least two screw extruders can be used, according to the inventive method also a coextrusion of at least two metallic materials different composition are performed.
- each of the screw extruder a storage zone have, in which the respective metallic material in the thixotropic state accumulates.
- the thixotropic materials can be moved back and forth from the storage zones Screws ejected through the nozzle or the injection mold become. The ejection can take place simultaneously, ie by coextrusion, but also alternately and / or with different Ratios of the materials used.
- a device with at least two screw extruders can the screw extruder in the same way as in the Coextrusion of plastics, ie in tandem, for example, V-shaped to each other.
- the nozzle may have a nozzle opening or a plurality of nozzle openings, for example, two coaxial annular openings, z. B. for producing a tube of two coaxial Layers of two metallic materials different Composition.
- the inventive method can be any metal parts be prepared, e.g. Semi-finished products, such as profiles, tubes, Rods or plates or downstream of one of the nozzle Injection mold any molded parts can be obtained.
- Semi-finished products such as profiles, tubes, Rods or plates or downstream of one of the nozzle Injection mold any molded parts can be obtained.
- the Thixospritzg tellvoretti consists essentially from an extruder E with a housing 1, in the a screw 2 rotates. At one end of the screw 2 has the housing, as shown in Figure 2, in the same Axial Society two material feed openings 3 and 4, over each one alloy A and B as granules of a Funnels 5 and 6 are supplied. Between the funnels 5 and 6 and the feed ports 3, 4 is a slide 7, 8 for Metering of the screw 2 supplied alloy A and B provided.
- integrated heater e.g., heater bands
- the worm promoted alloys A and B on a Temperature between its solidus and liquidus temperature, in an inert atmosphere.
- a nozzle 9 is provided at the end facing away from the Materialzuzhouö réelleen 3, 4 end of the housing 1, a nozzle 9 is provided. Between the Worm 2 and the nozzle 9 is the storage zone 11th That to a temperature between their solidus and liquidus temperature heated alloys A, B are from the Snail 2 in a semi-solid thixotropic state in the Storage zone 11 promoted.
- the screw 2 is corresponding the arrow 12 back and forth movable to the semi-solid thixotropic material from the storage zone 11 through the Eject nozzle 9.
- the supply of the alloys A, B can with the sliders 7, 8 z. B. be controlled so that the screw 2 initially only the alloy A is supplied, so that the nozzle 5 facing first area 13 in the storage zone 11 only from the Alloy A exists. If both slides 7, 8 then half open can, the middle or second area 14 z. B. consist of 50% of alloy A and 50% of alloy B, whereupon the slider 8 is closed so that the third, the worm 2 facing region 15 in the storage zone 11th again consists only of the alloy A.
- the rod 11 may be formed by forging into that shown in FIG Component 17, for example, a piston rod transferred become.
- a particularly wear-resistant Alloy A and a particularly tough mixture of alloys A and B thus becomes in the area of the eyes 17a and 17b get a high wear resistance range of the component and in the middle 17c between the two eyes a tougher, ductile area.
- the Thixospritzg tellvortechnisch of Figure 5 has two screw extruder E1 and E2, which are arranged V-shaped to each other are.
- Each screw extruder E1, E2 has one according to Arrows 21, 22 reciprocating worm 23, 24 and a storage zone 26, 27 between the injection mold 25 with the nozzle and each screw 23, 24.
- the extruder E1 is e.g. the alloy A via the feed opening 3, and the extruder E2 e.g. the alloy B via the feed opening 4.
- the storage zone 26 is the Alloy A supplied in thixotropic form, and the storage zone 27 the alloy B.
- the nozzle 25 has a T-shaped profile. Between Storage zones 26, 27, a deflection 28 is provided, the the alloy A in the storage zone 26 to that of the vertical T-leg facing away from the crossbar of the T deflects, so that according to Figure 6, a T-shaped profile injection molded that is in the opposite of vertical T-beams Range consists of a mixture of alloys A and B, and otherwise from the alloy A.
- the Thixospritzg smart rosettes beautiful invention can also be a Injection mold, to the two or more extruder screws are connected, such that in the injection mold Slider or the like shut-off provided are.
- the injection mold can thus z. B. about the first Extruder screw or nozzle, the alloy A sprayed first and then after opening the slider in the tool over the second one Nozzle, the alloy B. That is, the inventive method can be similar to the 2-component injection molding of plastics be performed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Powder Metallurgy (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10135198A DE10135198A1 (de) | 2001-07-19 | 2001-07-19 | Verfahren und Vorrichtung zum Thixospritzgießen metallischen Materials und Anwendung des Verfahrens |
DE10135198 | 2001-07-19 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP1281459A2 true EP1281459A2 (fr) | 2003-02-05 |
EP1281459A3 EP1281459A3 (fr) | 2003-10-01 |
EP1281459B1 EP1281459B1 (fr) | 2004-11-03 |
Family
ID=7692375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02012651A Expired - Lifetime EP1281459B1 (fr) | 2001-07-19 | 2002-06-07 | Procédé de thixomoulage par injection pour la fabrication de pièces métalliques |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1281459B1 (fr) |
DE (2) | DE10135198A1 (fr) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1442810A1 (fr) * | 2003-01-14 | 2004-08-04 | Bmw Ag | Procédé et dispositif pour la fabrication de fonte consistant en un alliage moulage par injection |
WO2005046911A1 (fr) * | 2003-11-07 | 2005-05-26 | Mahle Gmbh | Procede de production de materiaux composites a base de matrice metallique |
WO2006138727A2 (fr) * | 2005-06-17 | 2006-12-28 | The Regents Of The University Of Michigan | Dispositif et procede destines a la production de composants en forme de filet a partir de toles en alliage |
WO2008147284A1 (fr) | 2007-06-01 | 2008-12-04 | Aktiebolaget Skf | Composant de palier pour palier roulant ou palier coulissant |
WO2009068132A1 (fr) * | 2007-11-28 | 2009-06-04 | Daimler Ag | Bloc moteur comportant des chemises de cylindre coulées à plusieurs couches de matériau et procédé de fabrication des chemises de cylindre |
DE102009032320A1 (de) | 2009-07-09 | 2011-01-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Spritzgießen eines Bauteils |
DE102009032319A1 (de) | 2009-07-09 | 2011-01-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Extruder zur Herstellung eines Bauteils aus Leichtmetall sowie Verwendung eines solchen Extruders |
DE102009033532A1 (de) | 2009-07-10 | 2011-01-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Extruder zur Herstellung eines Bauteils aus Leichtmetall |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10301363A1 (de) * | 2003-01-14 | 2004-07-22 | Neue Materialien Fürth GmbH | Verfahren und Vorrichtung zur Herstellung von Gussstücken aus einer Legierung durch Spritzgießen |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5525374A (en) * | 1992-09-17 | 1996-06-11 | Golden Technologies Company | Method for making ceramic-metal gradient composites |
US5983978A (en) * | 1997-09-30 | 1999-11-16 | Thixomat, Inc. | Thermal shock resistant apparatus for molding thixotropic materials |
DE19907118C1 (de) * | 1999-02-19 | 2000-05-25 | Krauss Maffei Kunststofftech | Spritzgießvorrichtung für metallische Werkstoffe |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3817786B2 (ja) * | 1995-09-01 | 2006-09-06 | Tkj株式会社 | 合金製品の製造方法及び装置 |
-
2001
- 2001-07-19 DE DE10135198A patent/DE10135198A1/de not_active Withdrawn
-
2002
- 2002-06-07 EP EP02012651A patent/EP1281459B1/fr not_active Expired - Lifetime
- 2002-06-07 DE DE50201441T patent/DE50201441D1/de not_active Expired - Lifetime
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5525374A (en) * | 1992-09-17 | 1996-06-11 | Golden Technologies Company | Method for making ceramic-metal gradient composites |
US5983978A (en) * | 1997-09-30 | 1999-11-16 | Thixomat, Inc. | Thermal shock resistant apparatus for molding thixotropic materials |
DE19907118C1 (de) * | 1999-02-19 | 2000-05-25 | Krauss Maffei Kunststofftech | Spritzgießvorrichtung für metallische Werkstoffe |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1442810A1 (fr) * | 2003-01-14 | 2004-08-04 | Bmw Ag | Procédé et dispositif pour la fabrication de fonte consistant en un alliage moulage par injection |
WO2005046911A1 (fr) * | 2003-11-07 | 2005-05-26 | Mahle Gmbh | Procede de production de materiaux composites a base de matrice metallique |
US8282748B2 (en) | 2003-11-07 | 2012-10-09 | Mahle Gmbh | Process for producing metal matrix composite materials |
WO2006138727A2 (fr) * | 2005-06-17 | 2006-12-28 | The Regents Of The University Of Michigan | Dispositif et procede destines a la production de composants en forme de filet a partir de toles en alliage |
WO2006138727A3 (fr) * | 2005-06-17 | 2007-02-15 | Univ Michigan | Dispositif et procede destines a la production de composants en forme de filet a partir de toles en alliage |
EP2156064A1 (fr) * | 2007-06-01 | 2010-02-24 | Aktiebolaget SKF | Composant de palier pour palier roulant ou palier coulissant |
WO2008147284A1 (fr) | 2007-06-01 | 2008-12-04 | Aktiebolaget Skf | Composant de palier pour palier roulant ou palier coulissant |
EP2156064A4 (fr) * | 2007-06-01 | 2014-01-01 | Skf Ab | Composant de palier pour palier roulant ou palier coulissant |
WO2009068132A1 (fr) * | 2007-11-28 | 2009-06-04 | Daimler Ag | Bloc moteur comportant des chemises de cylindre coulées à plusieurs couches de matériau et procédé de fabrication des chemises de cylindre |
DE102009032320A1 (de) | 2009-07-09 | 2011-01-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Spritzgießen eines Bauteils |
DE102009032319A1 (de) | 2009-07-09 | 2011-01-13 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Extruder zur Herstellung eines Bauteils aus Leichtmetall sowie Verwendung eines solchen Extruders |
DE102009032320B4 (de) | 2009-07-09 | 2019-12-12 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Verfahren zum Spritzgießen eines Bauteils |
DE102009033532A1 (de) | 2009-07-10 | 2011-01-20 | Dr. Ing. H.C. F. Porsche Aktiengesellschaft | Extruder zur Herstellung eines Bauteils aus Leichtmetall |
Also Published As
Publication number | Publication date |
---|---|
DE10135198A1 (de) | 2003-02-06 |
DE50201441D1 (de) | 2004-12-09 |
EP1281459B1 (fr) | 2004-11-03 |
EP1281459A3 (fr) | 2003-10-01 |
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