DE730265C - Process for the diffusion of metals into the surface of objects made of magnesium or magnesium alloys - Google Patents
Process for the diffusion of metals into the surface of objects made of magnesium or magnesium alloysInfo
- Publication number
- DE730265C DE730265C DEB183566D DEB0183566D DE730265C DE 730265 C DE730265 C DE 730265C DE B183566 D DEB183566 D DE B183566D DE B0183566 D DEB0183566 D DE B0183566D DE 730265 C DE730265 C DE 730265C
- Authority
- DE
- Germany
- Prior art keywords
- magnesium
- metals
- diffusion
- objects made
- magnesium alloys
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/06—Solid state diffusion of only metal elements or silicon into metallic material surfaces using gases
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
- C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
- C23C10/34—Embedding in a powder mixture, i.e. pack cementation
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physical Vapour Deposition (AREA)
Description
Verfahren zum Eindiffundieren von Metallen in die Oberfläche von Gegenständen aus Magnesium oder Magnesiumlegierungen Das Eindiftundieren von Metallen in die Oberfläche metallischer Gegenstände ist bekannt. Im allgemeinen wird der Gegenstand in metallisches Pulver, mit dem die Ober-Häche angereichert werden soll, gepackt und der Diffusionstemperatur ausgesetzt. Weiter wurde versucht, galvanisch oder mechanisch aufgebrauchte Metallschichten z. B. mit Spritzen in das Grundmaterial einzudiffundieren. Es ist auch bereits ein Verfahren zur Oberflächenveredelung von Metallen oder metallischen Gegenständen durch Glühen in einem metallhaltigen Mittel bekanntgeworden. das sich durch Glühbehandlung in einer möglichst reinen, bei höherer Temperatur stark dissoziierten intermetallischen Verbindung auszeichnet, wobei die Glühbehandlung bei Unterdruck erfolgen kann. Durch dieses bekannte Verfahren werden bisher als Einsatzmittel nicht anwendbare Metalle für die Veredelung von Eisen nutzbar gemacht.Process for the diffusion of metals into the surface of objects Made of magnesium or magnesium alloys The indentation of metals into the The surface of metallic objects is known. In general, the subject will be packed in metallic powder with which the surface is to be enriched and exposed to the diffusion temperature. Another attempt was made to galvanically or mechanically used metal layers e.g. B. with syringes in the base material to diffuse. It is also already a process for surface finishing Metals or metallic objects by annealing in a metal-containing agent known. that is achieved by annealing in as pure a state as possible, at a higher level Temperature is characterized by a strongly dissociated intermetallic compound, the Annealing treatment can be carried out at negative pressure. By this well-known procedure Metals that were previously not usable as input materials can be used for refining iron made.
_ Ein weiteres Verfahren ist bereits bekamttgeworden zum Überziehen von Gegenständen, die selbst nicht in der Lage sind, Metallverbindungen zu reinem Metall zu reduzieren, unter vorheriger Aufdampfung einer dünnen Magnesiumschicht, die ihrerseits Metallverbindungen, wie Chromchlorid, reduziert und das Chrom auf den Gegenstand zur Abscheidtung bringt. Besonders grbße Schwierigkeiten bereitet das Eindiffundieren von Metallen in Gegenstände aus Magnesium oder Magnesiumlegierungen, da die Oxydschicht der Magnesiumlegierung die Diffusionszone stark hemmt und zum Teil ganz unterbindet. Durch die Erfindung werden diese Nachteile vermieden._ Another method has already been announced for overdrawing of objects that are not themselves able to clean metal compounds To reduce metal, with prior vapor deposition of a thin magnesium layer, which in turn reduces metal compounds, such as chromium chloride, and increases the chromium brings the object to the deposition. Is particularly difficult the diffusion of metals into objects made of magnesium or magnesium alloys, because the oxide layer of the magnesium alloy is the diffusion zone strong inhibits and sometimes completely prevents. The invention eliminates these disadvantages avoided.
Die Erfindung betrifft ein Verfahren zum Eindiitundieren von Metallen außer Aluminium in die Oberfläche von Gegenständen aus Magnesium oder Magnesiumlegierungen, welches sich dadurch auszeichnet, daß das Eindiflundieren im Vakuum vorzugsweise bei Drucken von unter i o mm, insbesondere bei i bis o,ooi min Hg, vorzugsweise bei einer Temperatur von 25o bis 5oo- C in Anwesenheit eines Füllgases, wie Wasserstoff oder Edelgase, vorgenommen wird. Durch die Anwendung des hohen Vakuums wird überraschenderweise der Vorteil erreicht, da15 die Otydschicht des Gegenstandes infolge des hohen Dampfdruckes des Magnesiums aufreißt und dadurch .ein metallischer Kontakt mit dem diffundierenden Metall hergestellt wird. Ganz überraschend ist es, daß man hochschmelzende Schwermetalle, wie Chrom, Nickel, Mangan o. d-1., unter Vakuum auch in niedrigschmelzende Gegenstände aus Magnesium oder Magnesitunlegierungen eindiffundieren kann. Die Diffusion von Metall in Magnesium oder Magnesiumlegierungen erfolgt etwa bei einer Temperatur zwischen 250 bis 500 C.The invention relates to a method for inditundating metals except for aluminum in the surface of objects made of magnesium or magnesium alloys, which is characterized by the fact that diffusion in vacuum is preferred in the case of pressures of less than 10 mm, in particular from 1 to 0, ooi min Hg, preferably at a temperature of 25o to 500C in the presence of a filling gas such as hydrogen or noble gases. By using the high vacuum, surprisingly the advantage is that the otyd layer of the object is due to the high vapor pressure of the magnesium tears open and thereby. a metallic contact with the diffusing Metal is made. It is quite surprising that high-melting heavy metals, such as chromium, nickel, manganese or d-1., also in low-melting objects under vacuum from magnesium or magnesite unalloys can diffuse. The diffusion of Metal in magnesium or magnesium alloys occurs at around one temperature between 250 to 500 C.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB183566D DE730265C (en) | 1938-06-19 | 1938-06-19 | Process for the diffusion of metals into the surface of objects made of magnesium or magnesium alloys |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB183566D DE730265C (en) | 1938-06-19 | 1938-06-19 | Process for the diffusion of metals into the surface of objects made of magnesium or magnesium alloys |
Publications (1)
Publication Number | Publication Date |
---|---|
DE730265C true DE730265C (en) | 1943-01-08 |
Family
ID=7009589
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB183566D Expired DE730265C (en) | 1938-06-19 | 1938-06-19 | Process for the diffusion of metals into the surface of objects made of magnesium or magnesium alloys |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE730265C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3637447A1 (en) * | 1985-11-05 | 1987-05-07 | Nippon Telegraph & Telephone | SURFACE TREATED MAGNESIUM OR MAGNESIUM ALLOY AND METHOD FOR SURFACE TREATING MAGNESIUM OR MAGNESIUM ALLOY |
DE102005031567A1 (en) * | 2005-07-06 | 2007-01-11 | Thyssenkrupp Steel Ag | Coating magnesium (alloy) substrate, e.g. sheet for use in automobile bodywork, by cleaning, applying coating of metal, e.g. zinc, and heat treating to give corrosion resistant intermetallic phase |
DE102010062357B4 (en) * | 2010-12-02 | 2013-08-14 | Innovent E.V. | Apparatus and method for producing a magnesium-containing substrate coated with at least one anticorrosion layer |
-
1938
- 1938-06-19 DE DEB183566D patent/DE730265C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3637447A1 (en) * | 1985-11-05 | 1987-05-07 | Nippon Telegraph & Telephone | SURFACE TREATED MAGNESIUM OR MAGNESIUM ALLOY AND METHOD FOR SURFACE TREATING MAGNESIUM OR MAGNESIUM ALLOY |
US4973393A (en) * | 1985-11-05 | 1990-11-27 | Nippon Telegraph And Telephone Corp. | Surface-treated magnesium or magnesium-alloy and process for surface treatment of magnesium or magnesium alloy |
DE102005031567A1 (en) * | 2005-07-06 | 2007-01-11 | Thyssenkrupp Steel Ag | Coating magnesium (alloy) substrate, e.g. sheet for use in automobile bodywork, by cleaning, applying coating of metal, e.g. zinc, and heat treating to give corrosion resistant intermetallic phase |
DE102010062357B4 (en) * | 2010-12-02 | 2013-08-14 | Innovent E.V. | Apparatus and method for producing a magnesium-containing substrate coated with at least one anticorrosion layer |
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