DE4116259A1 - POWDER-MOLDED MOLD RELEASE AGENT FOR A PRESS MOLDING PROCESS - Google Patents

POWDER-MOLDED MOLD RELEASE AGENT FOR A PRESS MOLDING PROCESS

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Publication number
DE4116259A1
DE4116259A1 DE4116259A DE4116259A DE4116259A1 DE 4116259 A1 DE4116259 A1 DE 4116259A1 DE 4116259 A DE4116259 A DE 4116259A DE 4116259 A DE4116259 A DE 4116259A DE 4116259 A1 DE4116259 A1 DE 4116259A1
Authority
DE
Germany
Prior art keywords
release agent
mold release
mold
compounds
agent according
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.)
Ceased
Application number
DE4116259A
Other languages
German (de)
Inventor
Takashi Hanano
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hanano Commercial Co
Original Assignee
Hanano Commercial Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hanano Commercial Co filed Critical Hanano Commercial Co
Publication of DE4116259A1 publication Critical patent/DE4116259A1/en
Ceased legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds
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    • C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
    • C10M111/02—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a non-macromolecular organic compound
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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    • C10M105/08—Lubricating compositions characterised by the base-material being a non-macromolecular organic compound containing oxygen
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M2229/00—Organic macromolecular compounds containing atoms of elements not provided for in groups C10M2205/00, C10M2209/00, C10M2213/00, C10M2217/00, C10M2221/00 or C10M2225/00 as ingredients in lubricant compositions
    • C10M2229/04—Siloxanes with specific structure
    • C10M2229/05—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon
    • C10M2229/054—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus
    • C10M2229/0545—Siloxanes with specific structure containing atoms other than silicon, hydrogen, oxygen or carbon containing phosphorus used as base material
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/02—Groups 1 or 11
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2010/00—Metal present as such or in compounds
    • C10N2010/04—Groups 2 or 12
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/20—Metal working

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Mold Materials And Core Materials (AREA)
  • Lubricants (AREA)

Description

Die Erfindung betrifft ein Formentrennmittel, welches bei einem Preß­ formverfahren, das einen Schmiedevorgang mit einschließt, an die In­ nenfläche der Preßform gesprüht wird.The invention relates to a mold release agent, which in a press molding process, which includes a forging process, to the In nenfläche the mold is sprayed.

Preßformverfahren, die einen Schmiedevorgang mit einschließen, werden häufig zur Herstellung von verschiedenen Fahrzeugteilen und elektri­ schen Teilen angewandt, weil sich mit diesen Verfahren Gußteile mit ho­ her Präzision kontinuierlich und in großen Stückzahlen fertigen lassen. Bei diesen Preßformverfahren wird ein Formentrennmittel verwendet, das zum einen den direkten Kontakt, das heißt ein Festfressen zwischen Form und schmelzflüssigem Metall verhindert und zum anderen das Herauslesen des Gußteils aus der Form erleichtert.Press molding processes, which include a forging process often for the production of various vehicle parts and electri parts used because these processes cast parts with ho precision can be manufactured continuously and in large quantities. A mold release agent is used in these compression molding processes on the one hand direct contact, that is, a seizure between Form and molten metal prevented and secondly that Reading out the casting from the mold easier.

Die für Preßformverfahren verwendeten Formentrennmittel lassen sich in zwei Hauptgruppen unterteilen, nämlich in die Gruppe der wasser­ löslichen und die Gruppe der wasserunlöslichen Formentrennmittel. Da­ bei sind letztere vom Standpunkt der Sicherheit aus betrachtet proble­ matisch, weil die Gefahr der Rauchbildung und Entzündung relativ groß ist. Aus diesem Grunde verwendet man häufig die wasserunlöslichen Formentrennmittel, der Basisbestandteile Wasser, Mineralöl etc. sind und denen zur Verwendung als oberflächenaktive Mittel oder Hochdruckmit­ tel Silikonöl, synthetisches oder natürliches Wachs, Fette und Öle, Fett­ säureester etc. beigemengt wird.The mold release agents used for press molding processes can be divide into two main groups, namely the group of water soluble and the group of water-insoluble mold release agents. There the latter are problematic from a security standpoint Matic, because the risk of smoke and inflammation is relatively high is. For this reason, the water-insoluble ones are often used Mold release agent that is based on water, mineral oil etc. and those for use as a surfactant or high pressure with tel silicone oil, synthetic or natural wax, fats and oils, fat acid ester etc. is added.

Der Fortschritt, der in den vergangenen Jahren auf dem Gebiet der Preßformverfahren erzielt wurde, hat auch den Bedarf an Formentrenn­ mittel erhöht, die dazu beitragen, bei besserer Verarbeitbarkelt Pro­ dukte mit hoher Qualität herstellen zu können, was mit wasserlöslichen Formentrennmitteln aber nicht möglich ist, da gerade wegen ihrer Was­ serlöslichkeit die Temperatursteuerung schwierig und die Gefahr groß ist, daß durch Restwasser im Inneren der Produkte Defekte entstehen. The progress that has been made in the field of Press molding has been achieved also has the need for mold release medium increases, which contribute to better processability Pro to be able to produce products with high quality, what with water-soluble Mold release agents are not possible because of their what Solubility makes temperature control difficult and the risk great is that residual water inside the products creates defects.  

Hinzu kommt, daß zur Vermeidung von Wasserverschmutzung das Ab­ wasser in teueren Anlagen gereinigt und behandelt werden muß.In addition, to avoid water pollution, the Ab water must be cleaned and treated in expensive systems.

Damit liegt der Erfindung die Aufgabe zugrunde, ein Formentrennmittel für Preßformverfahren zur Verfügung zu stellen, das bei besserer Be­ arbeitbarkeit die umweltfreundliche Herstellung von Gußprodukten ho­ her Qualität erlaubt und dabei das Festfressen zwischen Metall und Gußform verhindert, das Herauslösen des Produkts aus der Form er­ leichtert sowie während des Formverfahrens eine Gasbildung und nach dem Formverfahren eine Wasserverschmutzung verhindert Diese Aufgabe wird bei einem Gegenstand nach dem Oberbegriff von Anspruch 1 erfindungsgemäß durch dessen kennzeichnende Merkmale gelöst.The invention is therefore based on the object of a mold release agent to provide for press molding processes, which with better loading workability the environmentally friendly manufacture of cast products ho allows quality and thereby seizing between metal and Mold prevents the product from coming out of the mold relieves gas formation during and after the molding process the molding process prevents water pollution This task is performed on an object according to the preamble of Claim 1 according to the invention by its characteristic features solved.

Dazu weist das erfindungsgemäße pulverförmige Formentrennmittel, das bei Formpreßverfahren, die einen Schmiedevorgang einschließen, an die Innenflächen der Form gesprüht wird, ein Gemisch aus einem pulverförmigen oder granulierten Basismaterial auf, das zusammengesetzt ist aus einer als Schmiermittel in fester Form verwendeten anorganischen Verbindung und einer organischen Verbindung, die dem Basismaterial eine haftende Eigenschaft verleiht, wobei beide Verbindungen pulverisiert oder granuliert sind oder aber das Basismaterial für das Formen­ trennmittel mit der organischen Verbindung beschichtet ist.To this end, the powdered mold release agent according to the invention has the in compression molding processes, which include a forging process, to the Inner surfaces of the mold is sprayed, a mixture of a powder or granulated base material that is composed from an inorganic used as a solid lubricant Compound and an organic compound that is the base material gives an adhesive property, both compounds pulverized or granulated or the base material for molding release agent is coated with the organic compound.

Weitere Merkmale der Erfindung ergeben sich aus der nachfolgenden Beschreibung bevorzugter Ausführungsformen.Further features of the invention result from the following Description of preferred embodiments.

Das herausragendste Merkmal der Erfindung ist die pulverförmige oder gekörnte bzw. granulierte Beschaffenheit des Basismaterials für das Formentrennmittel.The most outstanding feature of the invention is the powdered or granular or granular nature of the base material for the Mold release agent.

Am effektivsten ist es, wenn der Gehalt bzw. Anteil der organischen Verbindung in Relation zur anorganischen Verbindung in einem Bereich von 0,1 bis 45 Gewichtsprozent liegt, da die Haftwirkung der anorgani­ schen Verbindung an der Innenfläche der Metallform nicht ausreicht, wenn der Anteil kleiner ist als 0,1 Gewichtsprozent. Ist der Anteil da­ gegen größer als 45 Gewichtsprozent, dann kommt es zu einer Schrumpfung und verbunden damit zu Schwierigkeiten beim Lösen des Formentrennmittels von der Innfläche der Metallform, das heißt zu einer verringerten Wirkung des Formentrennmittels beim Losiösen der Form oder zu einer Verschlechterung der Maßhaltigkeit des Produkts.It is most effective if the content or proportion of organic Compound in relation to the inorganic compound in one area from 0.1 to 45 percent by weight because the adhesive effect of the inorganic connection on the inner surface of the metal mold is not sufficient, if the proportion is less than 0.1 percent by weight. The share is there  against greater than 45 percent by weight, then there is a Shrinkage and associated difficulties in solving the problem Mold release agent from the inner surface of the metal mold, that is to one reduced effectiveness of the mold release agent when the mold is released or deterioration in the dimensional accuracy of the product.

Was das Basismaterial für das erfindungsgemäße Formentrennmittel an­ belangt, so gibt es keine Einschränkungen, vorausgesetzt, daß es aus einer festen anorganischen Verbindung besteht, die als Schmiermittel verwendet wird.As for the base material for the mold release agent according to the invention concerns, there are no restrictions provided that it is out a solid inorganic compound that acts as a lubricant is used.

Dafür werden im allgemeinen Bornitrid, Mika, Metalloxide, Siliziumnitrid, Schwefelverbindungen, Fluorid, Talk, Boronverbindungen und Phos­ phorverbindungen bevorzugt verwendet. Ebenso geeignet sind aber die gängigen Festschmierstoffe, die man bisher als Formentrennmittel ver­ wendet hat, wie zum Beispiel Molybdänsulfid, Graphit etc. Diese anorga­ nischen Verbindungen haben pulverige oder gekörnte Form, und es wird entweder nur eine Art oder aber mehrere Arten derselben in kombinierter Form verwendet.Boron nitride, mica, metal oxides, silicon nitride, Sulfur compounds, fluoride, talc, boron compounds and Phos preferred phosphorus compounds. But they are also suitable common solid lubricants that were previously used as mold release agents has used, such as molybdenum sulfide, graphite, etc. This anorga African compounds have powdery or granular form, and it is either only one kind or several kinds of the same in combined form used.

Ebensowenig Einschränkungen gibt es hinsichtlich der in vorliegender Erfindung verwendeten organischen Verbindungen, vorausgesetzt, daß ihre charakteristischen Merkmale dergestalt sind, daß sie den vorge­ nannten organischen Verbindungen eine haftende oder klebende Eigen­ schaft verleihen. Im allgemeinen werden dafür Metallseife oder hochmo­ lekulare Verbindungen bevorzugt verwendet. Eine Karbonsäurekon­ struktion in Verbindung mit Natrium, Kalzium, Barium, Lithium, Kalium, Magnesium oder Zink wird für die Metallseife und Polyäthylen, Polypropylen, Epoxidharz, Silikonharz, Phenolharz, Acrylharz, Alkydharz oder Polystyrol vorzugsweise für die hochmolekulare Verbindung verwendet Diese organischen Verbindungen werden mit dem Basismaterial des For­ mentrennmitteis entweder in pulverisierter oder granulierter Form oder im erwärmten, geschmolzenen Zustand vermischt. Folglich wird bei dem erfindungsgemäßen Formentrennmittel sowohl dessen Basismaterial als auch die organische Verbindung in pulverisierte oder granulierte Form gebracht, oder aber das Basismaterial wird mit der organischen Verbin­ dung beschichtet. Dabei wird entweder eine Art der vorgenannten or­ ganischen Verbindungen verwendet, oder aber man verwendet mehrere Arten davon in kombinierter Form. Es kann auch eine Kombination aus Metallseife und der hochmolekularen Verbindung verwendet werden.Nor are there any restrictions with regard to those in the present Invention used organic compounds provided that their characteristic features are such that they match the pre called organic compounds an adhesive or adhesive property lend shaft. In general, metal soap or high mo lecular connections are preferred. A carboxylic acid con structure in connection with sodium, calcium, barium, lithium, potassium, Magnesium or zinc is used for the metal soap and polyethylene, polypropylene, Epoxy resin, silicone resin, phenolic resin, acrylic resin, alkyd resin or Polystyrene preferably used for the high molecular compound These organic compounds are mixed with the base material of For Mentrennmitteis either in powdered or granular form or mixed in the heated, molten state. Consequently, the Mold release agent according to the invention both its base material and also the organic compound in powdered or granular form brought, or the base material is with the organic compound manure coated. Either a type of the aforementioned or  ganic compounds are used, or several are used Kinds of it in combined form. It can also be a combination Metal soap and the high molecular compound can be used.

Bei dem erfindungsgemäßen pulverförmigen Formentrennmittel für Preßformverfahren zeigt das Basismaterial des Formentrennmittels zu­ mindest pulverförmige oder granulierte Beschaffenheit, derart, daß das Gußprodukt zumindest um den Partikeldurchmesser des Pulverteilchens oder Körnchens des Trennmittels zuverlässig von der Innenfläche der Metallform getrennt ist, und zwar in dem Bereich der Form, in dem das Formentrennmittel an der Innenfläche der Gußform haftet. Das Formen­ trennmittel haftet gleichmäßig an der gesamten Innenfläche der Metall­ form, so daß sich ein Festfressen aufgrund eines direkten Kontakts des Produkts mit der Innenfläche der Form zuverlässig verhindern läßt. Da das erfindungsgemäße Formentrennmittel aus der organischen Verbin­ dung under anorganischen Verbindung besteht und kein Wasser ent­ halt, entstehen auch keine ansonsten durch Restwasser verursachte Defekte im Inneren des Produkts. Demzufolge läßt sich mit vorliegender Erfindung auch die Qualität der Gußprodukte verbessern.In the powdered mold release agent according to the invention for Press molding process shows the base material of the mold release agent at least powdery or granular nature, such that the Cast product at least around the particle diameter of the powder particle or granules of the release agent reliably from the inner surface of the Metal mold is separated, namely in the area of the mold in which the Mold release agent adheres to the inside surface of the mold. Forming Release agent adheres evenly to the entire inner surface of the metal form, so that a seizure due to direct contact of the Can reliably prevent product with the inner surface of the mold. There the mold release agent according to the invention from the organic compound There is an inorganic compound and no water stop, there are also no other ones caused by residual water Defects inside the product. Accordingly, the present Invention also improve the quality of cast products.

Hinzu kommt, daß durch die pulverförmige oder granulierte Beschaffen­ heit des Basismaterials des erfindungsgemäßen Trennmitteis und durch die Tatsache, daß dieses kein Wasser enthält, die zwischen der Innen­ fläche der Metallform und dem Produkt arbeitende Spannung gering ist, weshalb sich das Herausnehmen des Produkts aus der Metallform relativ leicht und problemlos gestaltet. Das Formentrennmittel selbst läßt sich sehr einfach von der Innenfläche der Metallform und der Oberfläche des Produkts entfernen.Add to that the fact that the powdery or granular procurement unit of the base material of the release agent according to the invention and by the fact that this contains no water between the inside surface of the metal mold and the product working voltage is low, which is why removing the product from the metal mold is relative designed light and easy. The mold release agent itself can be very simple from the inner surface of the metal mold and the surface remove the product.

Dadurch, daß das erfindungsgemäße Formentrennmittel zumindest pulve­ risierte oder gekörnte bzw. granulierte Form aufweist, ist das Material reaktionsarm und bildet selbst dann kaum Gas, wenn es während des Preßformverfahrens unter Wärmeeinwirkung steht. Im Gegensatz zu wasserlöslichen Formentrennmitteln wird durch das vorliegende Mittel das Wasser nach dem Formverfahren nicht verschmutzt, wodurch Um­ weltfreundlichkeit gegeben ist und teuere Reinigungsmaßnahmen nicht erforderlich sind. The fact that the mold release agent according to the invention at least powder The material is granulated or granular or granular low-reaction and hardly forms gas even if it is during the Press molding process is exposed to heat. In contrast to Water-soluble mold release agents is provided by the present agent the water is not polluted after the molding process, which means Um is environmentally friendly and expensive cleaning measures are not required are.  

Das eine aus einer organischen und anorganischen Verbindung zusam­ mengesetzte Mischung als Basismaterial enthaltende Formentrennmittel ist dergestalt, daß zumindest das Basismaterial pulverisierte oder gra­ nulierte Beschaffenheit zeigt. Dadurch kann bei Gußteilen, die in einem Preßformverfahren hergestellt werden, zum Beispiel Aluminium- und Zinklegierungen etc., ein Festfressen zwischen Gußteil und Metallform zuverlässig verhindert werden. Auch Defekte im Inneren des Produkts werden verhindert, was sich in einer besseren Gußqualität und in einer besseren Bearbeitbarkeit des Produkts in Preßformverfahren äußert, und es kommt weder vor noch nach Durchführung des Verfahrens zu einer Umweltverschmutzung. Speziell die Qualität der Gußprodukte läßt sich dadurch verbessern, daß der Gehalt bzw. Anteil der organischen Verbindung in Relation zur anorganischen Verbindung zwischen 0,1 und 45 Gewichtsprozent beträgt.The one from an organic and inorganic compound mixed mixture as a mold release agent containing base material is such that at least the base material pulverized or gra shows negated texture. This can result in castings in one Press molding processes are produced, for example aluminum and Zinc alloys etc., seizing between the casting and the metal mold can be reliably prevented. Even defects inside the product are prevented, which results in better casting quality and in a better machinability of the product in press molding processes, and neither before nor after the procedure is carried out pollution. Especially the quality of the cast products improve in that the content or proportion of organic Compound in relation to the inorganic compound between 0.1 and 45 percent by weight.

Der vorgenannte Effekt läßt sich noch weiter verbessern, wenn Bornitrid, Mika, Metalloxide, Siliziumnitrid, Schwefelverbindungen, Fluorid, Talk, Boronverbindungen oder Phosphorverbindungen für die anorgani­ sche Verbindung verwendet werden und wenn Metallseife, die die Kar­ bonsäurekonstruktion in Verbindung mit Natrium, Kalzium, Barium, Li­ thium, Kalium, Magnesium oder Zink aufweist, oder die hochmolekulare Verbindung wie Polyäthylen, Polypropylen, Epoxidharz, Phenolharz, Acrylatharz, Alkydharz oder Polystyrol für die organische Verbindung verwendet werden. Und diejenigen Formentrennmittel, die für die ver­ schiedensten Formverfahren am besten geeignet sind, lassen sich her­ stellen aus jeweils zwei oder mehreren der vorgenannten organischen und anorganischen Verbindungen in kombinierter Form.The aforementioned effect can be further improved if boron nitride, Mika, metal oxides, silicon nitride, sulfur compounds, fluoride, Talc, boron compounds or phosphorus compounds for the inorganic connection and if metal soap, which the Kar bonic acid construction in connection with sodium, calcium, barium, Li has thium, potassium, magnesium or zinc, or the high molecular weight Compound such as polyethylene, polypropylene, epoxy resin, phenolic resin, Acrylic resin, alkyd resin or polystyrene for the organic compound be used. And those mold release agents that are used for the ver a wide variety of molding processes are best suited each consist of two or more of the aforementioned organic and inorganic compounds in a combined form.

Es wurden die nachfolgenden Formentrennmittel (A) bis (F) hergestellt und bei Preßgußverfahren testweise verwendet. Die Ergebnisse aus diesem Vergleich sind in der nachfolgenden Tabelle enthalten.The following mold release agents (A) to (F) were produced and used in a test casting process. The results from this Comparison is included in the table below.

Zwei Arten eines Gemisches, nämlich einerseits ein Gemisch aus einer organischen Verbindung und einer anorganischen Verbindung im pulve­ risierten oder granulierten Zustand und andererseits ein Gemisch aus einer organischen Verbindung und einer anorganischen Verbindung im erwärmten, geschmolzenen Zustand wurden für die Ausführungsformen (A) bis (C) der vorliegenden Erfindung hergestellt.Two types of a mixture, namely a mixture of one organic compound and an inorganic compound in the pulve granulated or granulated state and on the other hand a mixture of an organic compound and an inorganic compound in  heated, molten state were used for the embodiments (A) to (C) of the present invention.

Die beiden Gemischarten wurden getestet und erzielten jeweils die glei­ chen Ergebnisse. Die für die Formentrennmittel (D) bis (F) verwendeten Verbindungen sind auf dem Markt erhältliche.The two types of mixture were tested and achieved the same results. Those used for mold release agents (D) to (F) Connections are available on the market.

  • A) Die erste Ausführungsform enthält eine Mischung aus 95 Teilen Bornitrid (durchschnittliche Teilchengröße 1 bis 5 Mikron) und 5 Teile Kalziumstearat.A) The first embodiment contains a mixture of 95 parts Boron nitride (average particle size 1 to 5 microns) and 5 parts Calcium stearate.
  • B) Die zweite Ausführungsform enthält eine Mischung aus 20 Teilen Bornitrid, 75 Teilen Mika und 5 Teilen Polyäthylen.B) The second embodiment contains a mixture of 20 parts Boron nitride, 75 parts of mica and 5 parts of polyethylene.
  • C) Die dritte Ausführungsform enthält eine Mischung aus 50 Teilen Bornitrid, 45 Teilen Siliziumnitrid, 3 Teilen Bariumstearat und 2 Teilen Polypropylen.C) The third embodiment contains a mixture of 50 parts Boron nitride, 45 parts silicon nitride, 3 parts barium stearate and 2 parts Polypropylene.
  • D) Nur Bornitrid (zum Vergleich mit der ersten Ausführungsform).D) Boron nitride only (for comparison with the first embodiment).
  • E) Ein wasserlösliches Formentrennmittel, das als Hauptbestandteile Wachs und Silikonöl in einem Verhältnis von 1 : 80 enthält (zum Vergleich mit der zweiten Ausführungsform).E) A water soluble mold release agent that is the main ingredient Contains wax and silicone oil in a ratio of 1:80 (for comparison with the second embodiment).
  • F) Ein auf dem Markt erhältliches Formentrennmittel, das Wachs, Sili­ konöl und Graphit enthält (zum Vergleich mit der dritten Ausfüh­ rungsform der Erfindung).F) A mold release agent available on the market, the wax, sili contains konöl and graphite (for comparison with the third version tion form of the invention).
Tabelletable

Claims (6)

1. Pulverförmiges Formentrennmittel, welches bei einem Preßformver­ fahren, das einen Schmiedevorgang mit einschließt, an die Innenfläche der Gußform gesprüht wird, dadurch gekennzeichnet, daß das pulver­ förmige Formentrennmittel eine Mischung aus einem pulverisierten oder granulierten Basismaterial enthält, welches wiederum zusammengesetzt ist aus einer anorganischen Verbindung, die als Schmiermittel in fester Form verwendet wird, und aus einer organischen Verbindung, die dem Basismaterial des Formentrennmittels eine haftende Eigenschaft verleiht, wobei beide Verbindungen pulverisierte oder granulierte Form aufwei­ sen oder das Basismaterial mit der organischen Verbindung beschichtet ist.1. Powdered mold release agent, which run in a Preßformver, which includes a forging process, is sprayed onto the inner surface of the mold, characterized in that the powdered mold release agent contains a mixture of a powdered or granulated base material, which in turn is composed of an inorganic A compound used as a lubricant in a solid form and an organic compound which gives an adhesive property to the base material of the mold releasing agent, both compounds having powdered or granular form or the base material being coated with the organic compound. 2. Formentrennmittel nach Anspruch 1, dadurch gekennzeichnet, daß dieses die organische Verbindung mit einem Anteil von 0,1 bis 45 Ge­ wichtsprozent in Relation zur anorganischen Verbindung enthält.2. mold release agent according to claim 1, characterized in that this is the organic compound with a proportion of 0.1 to 45 Ge contains weight percent in relation to the inorganic compound. 3. Formentrennmittel nach Anspruch 1 oder 2, dadurch gekennzeich­ net, daß die anorganische Verbindung einen oder mehrere aus den Stoffen Bornitrid, Siliziumnitrid, Mika, Metalloxide, Schwefelverbindun­ gen, Fluorid, Talk, Boronverbindungen und Phosphorverbindungen ent­ hält.3. mold release agent according to claim 1 or 2, characterized net that the inorganic compound one or more of the Substances boron nitride, silicon nitride, mica, metal oxides, sulfur compounds gene, fluoride, talc, boron compounds and phosphorus compounds ent holds. 4. Formentrennmittel nach einem der Ansprüche 1 bis 3, dadurch ge­ kennzeichnet, daß die organische Verbindung eine oder mehrere Arten von Metallseife und/oder hochmolekularen Verbindungen enthält. 4. mold release agent according to one of claims 1 to 3, characterized ge indicates that the organic compound is one or more species contains metal soap and / or high molecular weight compounds.   5. Formentrennmittel nach Anspruch 4, dadurch gekennzeichnet, daß die Metallseife eine mit Natrium, Kalzium, Barium, Lithium, Kalium, Ma­ gnesium oder Zink gebundene Karboxylsäuregruppe aufweist.5. mold release agent according to claim 4, characterized in that the metal soap one with sodium, calcium, barium, lithium, potassium, Ma magnesium or zinc-bonded carboxylic acid group. 6. Formentrennmittel nach Anspruch 4 oder 5, dadurch gekennzeich­ net, daß die hochmolekulare Verbindung Polyäthylen, Polypropylen, Epoxidharz, Silikonharz, Phenolharz, Acrylatharz, Alkydharz oder Poly­ styrol aufweist.6. mold release agent according to claim 4 or 5, characterized net that the high molecular compound polyethylene, polypropylene, Epoxy resin, silicone resin, phenolic resin, acrylic resin, alkyd resin or poly has styrene.
DE4116259A 1991-03-06 1991-05-17 POWDER-MOLDED MOLD RELEASE AGENT FOR A PRESS MOLDING PROCESS Ceased DE4116259A1 (en)

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JPH06346075A (en) * 1993-06-04 1994-12-20 Hanano Shoji Kk Powdery releasing agent for molten metal forging
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Publication number Publication date
KR940009798B1 (en) 1994-10-17
KR920017741A (en) 1992-10-21
JPH04279243A (en) 1992-10-05
JPH0759345B2 (en) 1995-06-28
CA2041502A1 (en) 1992-09-07
GB2253410A (en) 1992-09-09
GB9111499D0 (en) 1991-07-17

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