DE102005047515A1 - Pressure casting process for casting light metal melts in pressure casting machine, in production of Al castings has melt heated to temperature higher than liquidus temperature and then directed into casting chamber with removal of heat - Google Patents
Pressure casting process for casting light metal melts in pressure casting machine, in production of Al castings has melt heated to temperature higher than liquidus temperature and then directed into casting chamber with removal of heat Download PDFInfo
- Publication number
- DE102005047515A1 DE102005047515A1 DE200510047515 DE102005047515A DE102005047515A1 DE 102005047515 A1 DE102005047515 A1 DE 102005047515A1 DE 200510047515 DE200510047515 DE 200510047515 DE 102005047515 A DE102005047515 A DE 102005047515A DE 102005047515 A1 DE102005047515 A1 DE 102005047515A1
- Authority
- DE
- Germany
- Prior art keywords
- casting
- melt
- die casting
- temperature
- chamber
- 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.)
- Withdrawn
Links
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
-
- 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
- B22D17/20—Accessories: Details
- B22D17/2015—Means for forcing the molten metal into the die
- B22D17/2038—Heating, cooling or lubricating the injection unit
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
Description
Die Erfindung betrifft ein Druckgiessverfahren, zur Herstellung von Druckgiessteilen aus vorzugsweise Aluminium-Standardlegierungen. Zweck der Erfindung ist eine Steigerung der Wirtschaftlichkeit von Standarddruckguss.The The invention relates to a die casting method for the production of Die cast parts preferably made of aluminum standard alloys. Purpose of the invention is an increase in the economy of Standard die casting.
Es sind viele Lösungsansätze bekannt, die metallurgische Struktur von Druckgiessteilen zu verbessern. So offenbart die WO 02/055235 ein Verfahren zum Bereitstellen einer teilerstarrten Legierungssuspension, welches eine effizientere Verfahrensführung bei hochwertigen Werkstoffen, insbesondere Magnesiumlegierungen ermöglichen soll. Hierbei wird die Verweilzeit der Schmelze auf einer geneigten Suspendierstrecke derart gewählt, dass der gewünschte Phasenanteil wenigstens annähernd innerhalb der Zykluszeit erreicht wird, der flüssigen Legierung mindestens 20% der Schmelzwärme entzogen wird, die flüssige Legierung wird als einem zweiten Keimbildungsschritt in einer turbulenten Strömung unter Wärmeentzug zugeführt. Anschliessend gelangt die so teilerstarrte Suspension in eine Formungseinrichtung, wobei mindestens eine der vorgenannten Bedingungen erreicht werden muss. Kennzeichnend ist, dass die Temperatur der Schmelze nach verlassen der Suspendierstrecke und vor Eintritt in die Giesskammer unterhalb der Liquiduslinie bewegt. Eine solche Verfahrensweise setzt Legierungen mit ausreichend grossem Erstarrungsgradienten im teigigen Bereich voraus.It many solutions are known to improve the metallurgical structure of die cast parts. Thus, WO 02/055235 discloses a method for providing a partially solidified alloy suspension, which contributes to a more efficient process high-grade materials, in particular magnesium alloys should. In this case, the residence time of the melt on an inclined Suspendierstrecke chosen so that the desired Phase content at least approximately within the cycle time, the liquid alloy is at least 20% of the heat of fusion is withdrawn, the liquid Alloy is called a second nucleation step in a turbulent Flow under heat extraction fed. Subsequently, the so partially solidified suspension passes into a molding device, wherein at least one of the aforementioned conditions are achieved got to. Characteristic is that the temperature of the melt left after the Suspendierstrecke and before entering the casting chamber below the liquidus line moves. Such a procedure uses alloys with a sufficiently large solidification gradient in the doughy area ahead.
Die Suspendierstrecke ist z. B. kaskadenförmig ausgebildet.The Suspendierstrecke is z. B. formed cascade-shaped.
Die EP-A-1405684 betrifft ein Verfahren zur Herstellung von Teilen durch Rheocasting oder Thixoformung, bei dem durch elektromagnetisches Rühren einer Schmelze Wärme entzogen wird, bis ein Festanteil von max. 0,7 erreicht ist. Vor dem Rühren weist die Schmelze eine Temperatur von max. 100°C oberhalb der Liquiduslinie auf.The EP-A-1405684 relates to a method of producing parts by Rheocasting or thixoforming, in which by electromagnetic stir a melt heat is withdrawn until a fixed portion of max. 0.7 is reached. In front the stirring points the melt has a temperature of max. 100 ° C above the liquidus line on.
Bei Verfahren gemäss EP-A-1407841 resp. EP-A-1413373 wird die Schmelze in der Giesskammer elektromagnetisch gerührt und Wärme entzogen.at Process according to EP-A-1407841 resp. EP-A-1413373 discloses the melt in the casting chamber Electromagnetically stirred and heat withdrawn.
Bei einem weiteren Verfahren zur Herstellung von Gussteilen wird eine Formkavität mit Schmelze gefüllt und nach Erstarrung einer Randschicht wird in die verbliebene Schmelze Gas eingeleitet und eine Nebenkavität geöffnet, so dass überschüssige Schmelze austreten kann und ein Formteil mit mindestens einem Hohlraum gebildet wird.at Another method for producing castings is a mold cavity filled with melt and after solidification of a boundary layer is in the remaining melt Gas introduced and opened a Nebenkavität, allowing excess melt can emerge and formed a molding with at least one cavity becomes.
Der Erfindung liegt die Aufgabe zugrunde, Druckgiessverfahren zu entwickeln, das es ermöglicht Standardlegierungen wirtschaftlicher zu vergiessen, insbesondere mit einer kürzeren Zykluszeit und/oder mit höherer Standzeit des Druckgiesswerkzeugs.Of the Invention is based on the task of developing die casting methods that makes it possible Standard alloys more economical to shed, in particular with a shorter one Cycle time and / or higher Service life of the diecasting tool.
Die Lösung der Aufgabe erfolgt mit den Merkmalen des Patentanspruchs 1.The solution The object is achieved with the features of claim 1.
Die Temperatur der Schmelze liegt beim Eintritt in die Giesskammer oberhalb der Liquidustemperatur. Dennoch ist es möglich eine signifikante Reduktion der Erstarrungszeit zu erzielen, ein Absinken der Schmelzetemperatur unter Liquidus erfolgt erst in die Giesskammer. Die Schmelze kühlt bei kontinuierlichem Fluss ab. Der Schmelze wird dabei keine Schmelzwärme, sondern nur Überhitzungswärme gezielt und überwacht entzogen, so dass die Schmelzetemperatur beim Eintritt in die Giesskammer noch oberhalb der Liquidustemperatur liegt.The The temperature of the melt is above when entering the casting chamber the liquidus temperature. Nevertheless, it is possible a significant reduction the solidification time, a decrease in the melt temperature under Liquidus takes place only in the casting chamber. The melt cools continuous flow. The melt is no heat of fusion, but only superheated heat targeted and monitored deprived, so that the melt temperature when entering the casting chamber is still above the liquidus temperature.
Das Verfahren kann daher mit herkömmlichen Dosieröfen betrieben werden, ohne Schlammbildung oder dergleichen infolge unterkühlter Schmelze zu verursachen. Daher ist das Verfahren auch für Standardlegierungen wie zum Beispiel AlSi9Cu3 mit sehr flachem Erstarrungsgradienten einsetzbar.The Procedure can therefore be with conventional Dosing be operated without sludge or the like due to supercooled melt to cause. Therefore, the method is also for standard alloys such as Example AlSi9Cu3 can be used with a very flat solidification gradient.
Die Kühlung im kontinuierlichen Fluss erfolgt auch dann, wenn sich bei jedem Schuss auf der Kühlstrecke eine Gusshaut bildet, resp. diese entfernt wird. Dies stellt eine noch akzeptable Prozessstörung dar, ist jedoch kein gewolltes Verfahrensmerkmal.The cooling in the continuous flow occurs even if at each Shot on the cooling line forms a casting skin, resp. this is removed. This constitutes one still acceptable process disorder is not an intended feature of the procedure.
Die Erfindung wird nachfolgend in einem Ausführungsbeispiel näher beschrieben.The Invention will be described in more detail in an embodiment.
Die Metallschmelze fliesst über eine Kühlstrecke. Diese Kühlstrecke wird mit Wasser auf vorzugsweise Raumtemperatur temperiert. Die Kühlstrecke kann linear oder rotationssymmetrisch gestaltet sein.The Molten metal flows over a cooling section. This cooling section is tempered with water to preferably room temperature. The cooling section can be designed linear or rotationally symmetrical.
Die Temperatur der Schmelze liegt beim Eintritt in die Giesskammer oberhalb der Liquidustemperatur. Dennoch ist es möglich eine signifikante Reduktion der Erstarrungszeit zu erzielen, ein Absinken der Schmelzetemperatur unter Liquidus erfolgt erst in die Giesskammer. Die Schmelze kühlt bei kontinuierlichem Fluss ab. Der Schmelze wird dabei keine Schmelzwärme, sondern nur Überhitzungswärme gezielt und überwacht entzogen, so dass die Schmelze mit einer Temperatur oberhalb der Liquidustemperatur in eine Giesskammer einer Druckgiessmaschine gelangt.The The temperature of the melt is above when entering the casting chamber the liquidus temperature. Nevertheless, it is possible a significant reduction the solidification time, a decrease in the melt temperature under Liquidus takes place only in the casting chamber. The melt cools continuous flow. The melt is no heat of fusion, but only superheated heat targeted and monitored deprived, leaving the melt at a temperature above the Liquidus temperature in a casting chamber of a die casting machine arrives.
Claims (6)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510047515 DE102005047515A1 (en) | 2005-10-04 | 2005-10-04 | Pressure casting process for casting light metal melts in pressure casting machine, in production of Al castings has melt heated to temperature higher than liquidus temperature and then directed into casting chamber with removal of heat |
| PCT/CH2006/000532 WO2007038892A1 (en) | 2005-10-04 | 2006-10-02 | Die casting method |
| EP06790923A EP1931485A1 (en) | 2005-10-04 | 2006-10-02 | Die casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200510047515 DE102005047515A1 (en) | 2005-10-04 | 2005-10-04 | Pressure casting process for casting light metal melts in pressure casting machine, in production of Al castings has melt heated to temperature higher than liquidus temperature and then directed into casting chamber with removal of heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102005047515A1 true DE102005047515A1 (en) | 2007-04-05 |
Family
ID=37622199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200510047515 Withdrawn DE102005047515A1 (en) | 2005-10-04 | 2005-10-04 | Pressure casting process for casting light metal melts in pressure casting machine, in production of Al castings has melt heated to temperature higher than liquidus temperature and then directed into casting chamber with removal of heat |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1931485A1 (en) |
| DE (1) | DE102005047515A1 (en) |
| WO (1) | WO2007038892A1 (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69610132T2 (en) * | 1995-03-22 | 2001-01-11 | Hitachi Metals Ltd | Die casting process |
| EP1046444B1 (en) * | 1999-04-20 | 2002-03-06 | Ritter Aluminium Giesserei Gmbh | Pressure diecasting method |
| US6405784B2 (en) * | 2000-04-28 | 2002-06-18 | Nissei Plastic Industrial Co., Ltd. | Injection molding method of metal mold |
| DE10100632A1 (en) * | 2001-01-09 | 2002-07-11 | Rauch Fertigungstech Gmbh | Method of providing a partially solidified alloy suspension and operations |
| JP3511378B1 (en) * | 2002-09-25 | 2004-03-29 | 俊杓 洪 | Method and apparatus for manufacturing metal forming billet in solid-liquid coexistence state, method and apparatus for manufacturing semi-solid forming billet |
| US6880614B2 (en) * | 2003-05-19 | 2005-04-19 | Takata Corporation | Vertical injection machine using three chambers |
-
2005
- 2005-10-04 DE DE200510047515 patent/DE102005047515A1/en not_active Withdrawn
-
2006
- 2006-10-02 EP EP06790923A patent/EP1931485A1/en not_active Withdrawn
- 2006-10-02 WO PCT/CH2006/000532 patent/WO2007038892A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| EP1931485A1 (en) | 2008-06-18 |
| WO2007038892A1 (en) | 2007-04-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0718059B1 (en) | Oxide remover | |
| DE69832538T2 (en) | MAGNESIUM CASTING | |
| EP2945760B1 (en) | Casting mold for producing castings, in particular cylinder blocks and cylinder heads, having functional connection of the feeder | |
| DE102006036369A1 (en) | Melting-, casting- and pressing process for producing high stressable components, by introducing, heating, melting and quantifying pieces of starting material into closed system, and promoting the material in mold cavity by pressure chamber | |
| EP0413885B1 (en) | Low pressure die casting process for casting non ferrous metal casting parts | |
| EP2647451A1 (en) | Method for manufacturing salt cores | |
| DE102008024524A1 (en) | Method and plant for producing a cast component | |
| EP2929957A1 (en) | Die casting machine and method for manufacturing several casting parts | |
| DE102006057660A1 (en) | Procedure for die casting of a thin walled non-ferrous e.g. aluminum component, comprises introducing a melted material under pressure into die, tempering the component in the die by water using a spraying device, and heating the component | |
| DE102012108079B3 (en) | Producing a salt core salt core useful as a hollow space holder for die-casting process comprises introducing a liquid salt mixture into a metal mold, and solidifying a part of the salt mixture on walls of the metal mold | |
| DE102006002342A1 (en) | Metal injection mold with injection channel and cold plug, used for magnesium-based melt, has specified composition avoiding undesired interactions | |
| DE102011112560B3 (en) | Plant for the production of cast components and semi-finished products | |
| DE102005047515A1 (en) | Pressure casting process for casting light metal melts in pressure casting machine, in production of Al castings has melt heated to temperature higher than liquidus temperature and then directed into casting chamber with removal of heat | |
| DE102006002341A1 (en) | Die casting tool, especially for magnesium, has heated channel which leads to molding chamber, second channel linking these which is cooled by unit which can be adjusted to produce desired temperature in channel | |
| DE102008051998A1 (en) | Casting method comprises reducing the low pressure in a low pressure furnace after stopping casting enough so that at least one part of the cast material still in the casting column and still in the liquid state flows back into the furnace | |
| DE102010011529B4 (en) | Method and device for the production of cast components | |
| AT519391A1 (en) | Mold divider for installation in a mold | |
| DE102006057786A1 (en) | Method for producing mold part made of light metal/light metal alloy by a pressing device, comprises opening molding tool of the pressing device subjectable with first pressing force and movable in vertical direction in starting position | |
| DE1508127B2 (en) | Process for the production of fine carbide tool and high-speed steels | |
| DE102019110785A1 (en) | PROCESS FOR THE SEMI-PERMANENT CASTING PROCESS | |
| AT228954B (en) | Device for continuous casting of metal strands | |
| WO2009140775A1 (en) | Method for producing cores | |
| EP3164236B1 (en) | Method and device for casting at least one component | |
| DE3935954A1 (en) | DIVING BELL TO TREAT MELT | |
| WO2005097378A2 (en) | Method for the production of moulded parts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 8128 | New person/name/address of the agent |
Representative=s name: PAE REINHARD, SKUHRA, WEISE & PARTNER GBR, 80801 M |
|
| 8139 | Disposal/non-payment of the annual fee |