DE1100235B - Process for the seamless pouring of insert parts made of heavy metal into castings made of aluminum and its alloys - Google Patents
Process for the seamless pouring of insert parts made of heavy metal into castings made of aluminum and its alloysInfo
- Publication number
- DE1100235B DE1100235B DEA29136A DEA0029136A DE1100235B DE 1100235 B DE1100235 B DE 1100235B DE A29136 A DEA29136 A DE A29136A DE A0029136 A DEA0029136 A DE A0029136A DE 1100235 B DE1100235 B DE 1100235B
- Authority
- DE
- Germany
- Prior art keywords
- aluminum
- insert parts
- pouring
- seamless
- heavy metal
- 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.)
- Pending
Links
- 238000005266 casting Methods 0.000 title claims description 11
- 229910052782 aluminium Inorganic materials 0.000 title claims description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims description 9
- 238000000034 method Methods 0.000 title claims description 6
- 229910001385 heavy metal Inorganic materials 0.000 title claims description 4
- 229910045601 alloy Inorganic materials 0.000 title description 2
- 239000000956 alloy Substances 0.000 title description 2
- 229910000838 Al alloy Inorganic materials 0.000 claims description 11
- 229910052751 metal Inorganic materials 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 8
- 238000002844 melting Methods 0.000 claims description 8
- 229910000951 Aluminide Inorganic materials 0.000 claims description 7
- 229910052749 magnesium Inorganic materials 0.000 claims description 7
- 239000011777 magnesium Substances 0.000 claims description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 4
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000007654 immersion Methods 0.000 claims description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 2
- 229910052748 manganese Inorganic materials 0.000 claims description 2
- 239000011572 manganese Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical compound [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims 1
- 239000004615 ingredient Substances 0.000 claims 1
- 239000007788 liquid Substances 0.000 claims 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 3
- 229910052725 zinc Inorganic materials 0.000 description 3
- 239000011701 zinc Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 2
- 239000011253 protective coating Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 229910000831 Steel Chemical group 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 229910000765 intermetallic Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 239000010959 steel Chemical group 0.000 description 1
- 238000010301 surface-oxidation reaction Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C21/00—Alloys based on aluminium
- C22C21/10—Alloys based on aluminium with zinc as the next major constituent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Description
Verfahren zum fugenlosen Eingießen von Einsatzteilen aus Schwermetall in Gußstücke aus Aluminium und dessen Legierungen Zusatz zur Patentanmeldung A 22210 VI/31 c (Auslegeschrift 1017 339) Die Erfindung bezieht sich auf eine Weiterbildung und Verbesserung der Behandlung von Schwermetallteilen, insbesondere Eisen- und Stahlteilen, die mit einer Aluminidschicht versehen, in Formen eingesetzt und mit Aluminium bzw. Aluminiumlegierungen umgossen werden.Method for the seamless pouring of insert parts made of heavy metal into castings made of aluminum and its alloys Addition to patent application A 22210 VI / 31 c (Auslegeschrift 1017 339) The invention relates to a further development and improvement of the treatment of heavy metal parts, in particular iron and steel parts, which provided with an aluminide layer, inserted into molds and encapsulated with aluminum or aluminum alloys.
Nach der Hauptpatentanmeldung werden die in bekannter Weise durch Eintauchen in ein schmelzflüssiges Aluminiumbad mit einer Aluminidschicht versehenen Einsatzteile in Metallsalzbädern behandelt, welche eine oberflächige Aluminiumoxydhaut abtragen und einen metallenen Schutzbelag abscheiden, der eine begiebige Lagerzeit vor der weiteren Verarbeitung, d. h. vor dem Umgießen der Einsatzteile ermöglicht.After the main patent application, the in a known manner Immersion in a molten aluminum bath provided with an aluminide layer Insert parts treated in metal salt baths, which have a superficial aluminum oxide skin Remove and deposit a metal protective coating, which allows a long storage time before further processing, d. H. before casting around the insert allows.
Insbesondere in solchen Formen, in welchen die in dieser Weise vorbehandelten Einsatzteile beim Umgießen nur wenig von dem Gießmetall bespült werden, können jedoch dadurch Schwierigkeiten auftreten, daß nach der Ablösung des Schutzmetalls die Bildung einer intermetallischen Verbindung zwischen der Aluminidschicht und dem Gießmetall nicht vollständig ist.Especially in those forms in which those pretreated in this way Insert parts are only slightly washed by the casting metal when casting around, however difficulties arise in that after the protective metal has been detached, the formation an intermetallic compound between the aluminide layer and the casting metal is not complete.
Diesen Schwierigkeiten wird nach der Erfindung dadurch abgeholfen, daß die Einsatzteile vor ihrer Behandlung in einem Metallsalzbad, das die oberflächige Aluminiumoxydhaut abträgt und eine metallenen Schutzbelag abscheidet, durch Eintauchen in eine niedrigschmelzende Mehrstoffaluminiumlegierung mit einer Aluminidschicht versehen und vor dem Eingießen auf eine Temperatur von etwa 300 bis 400° C vorgewärmt werden.According to the invention, these difficulties are remedied by that the insert parts before their treatment in a metal salt bath, which the superficial Removes aluminum oxide skin and deposits a metal protective coating by immersion into a low-melting multicomponent aluminum alloy with an aluminide layer provided and preheated to a temperature of about 300 to 400 ° C before pouring will.
Für die Ausführung der Erfindung geeignete niedrigschmelzende Mehrstoffaluminiumlegierungen sind beispielsweise eine kupferhaltige Aluminiumlegierung, vorzugsweise eine Zink, Kupfer und Magnesium enthaltende Aluminiumlegierung mit einem Schmelzpunkt von etwa 470° C, die folgende Zusammensetzung hat: Zink ............ 25 bis 30% Kupfer ......... 15 bis 20% Magnesium . . . . . 2 bis 5% Aluminum ...... Rest Es können aber auch kupferfreie Aluminiumlegierungen Verwendung finden, vorzugsweise eine Magnesium und Mangan oder eine Silizium und Magnesium enthaltende Aluminiumlegierung, die gegebenenfalls weitere, den Schmelzpunkt erniedrigende, jedoch die Korrosionsgefahr nicht erhöhende B@es.tandteile enthält, beispielsweise Zink. Solche kupferfreien, niedrigschmelzenden Mehrstoffaluminiumlegierungen haben den Vorteil, daß die durch einen Kupfergehalt begünstigte innerkristalline Korrosion weitgehend vermieden wird, was besonders für langlebige Gußstücke von Bedeutung ist, welche den korrodierenden Einflüssen der Atmosphäre ausgesetzt sind. Die Erfindung gewährleistet, daß beim Umgießen der Einsatzteile nicht nur der zur Vermeidung der Oberflächenoxydation aufgebrachte Schutzmetallbelag abgelöst, sondern die Aluminidschicht auch unter weniger günstigen Umständen durch das schmelzflüssige Gießmetall oberflächlich so weit aufgeweicht bzw. angeschmolzen wird, daß eine innige Verbindung zwischen der Aluminidächicht und dem Gießmetall gewährleistet ist.Low-melting multicomponent aluminum alloys suitable for practicing the invention are for example a copper-containing aluminum alloy, preferably a zinc, Aluminum alloy containing copper and magnesium with a melting point of about 470 ° C, the following composition: zinc ............ 25 to 30% copper ......... 15 to 20% magnesium. . . . . 2 to 5% aluminum ...... rest But it can also Copper-free aluminum alloys are used, preferably a magnesium and manganese or an aluminum alloy containing silicon and magnesium, the possibly further ones that lower the melting point, but reduce the risk of corrosion Contains non-increasing components, e.g. zinc. Such copper-free, low-melting multicomponent aluminum alloys have the advantage that the through a copper content favored inner crystalline corrosion is largely avoided, which is particularly important for long-lasting castings, which are the corrosive Are exposed to atmospheric influences. The invention ensures that when Casting around the insert parts not only to avoid surface oxidation applied protective metal coating is detached, but the aluminide layer also underneath less favorable circumstances by the molten casting metal superficially so is softened or melted far that an intimate connection between the Aluminum roof layer and the casting metal is guaranteed.
Ein weiterer Vorteil besteht darin, daß das mit der Aluminidschicht versehene Einsatzteil auf wesentlich geringere Temperaturen aufgeheizt werden muß, als dies bei den bisher bekannten Verfahren erforderlich ist, wobei als Bereich für die Vorwärmtemperatur etwa 300 bis 400° C angegeben werden kann.Another advantage is that that with the aluminide layer the insert part provided must be heated to significantly lower temperatures, than is required in the previously known methods, with as a range 300 to 400 ° C can be specified for the preheating temperature.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA29136A DE1100235B (en) | 1958-03-26 | 1958-03-26 | Process for the seamless pouring of insert parts made of heavy metal into castings made of aluminum and its alloys |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEA29136A DE1100235B (en) | 1958-03-26 | 1958-03-26 | Process for the seamless pouring of insert parts made of heavy metal into castings made of aluminum and its alloys |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1100235B true DE1100235B (en) | 1961-02-23 |
Family
ID=6926831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEA29136A Pending DE1100235B (en) | 1958-03-26 | 1958-03-26 | Process for the seamless pouring of insert parts made of heavy metal into castings made of aluminum and its alloys |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1100235B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1508993B1 (en) * | 1965-12-01 | 1974-04-04 | Texas Instruments Inc | METHOD OF MANUFACTURING A MULTI-LAYER BODY |
| DE3590587C2 (en) * | 1984-11-07 | 1988-06-23 | Mitsubishi Motors Corp | Method and device for producing a composite body |
-
1958
- 1958-03-26 DE DEA29136A patent/DE1100235B/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1508993B1 (en) * | 1965-12-01 | 1974-04-04 | Texas Instruments Inc | METHOD OF MANUFACTURING A MULTI-LAYER BODY |
| DE3590587C2 (en) * | 1984-11-07 | 1988-06-23 | Mitsubishi Motors Corp | Method and device for producing a composite body |
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