DE688751C - Process for the production of surface alloys by diffusion - Google Patents

Process for the production of surface alloys by diffusion

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Publication number
DE688751C
DE688751C DE1935B0168478 DEB0168478D DE688751C DE 688751 C DE688751 C DE 688751C DE 1935B0168478 DE1935B0168478 DE 1935B0168478 DE B0168478 D DEB0168478 D DE B0168478D DE 688751 C DE688751 C DE 688751C
Authority
DE
Germany
Prior art keywords
diffusion
production
alkalis
salts
surface 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
Application number
DE1935B0168478
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German (de)
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE1935B0168478 priority Critical patent/DE688751C/en
Application granted granted Critical
Publication of DE688751C publication Critical patent/DE688751C/en
Expired legal-status Critical Current

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
    • C23C10/18—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions
    • C23C10/20—Solid state diffusion of only metal elements or silicon into metallic material surfaces using liquids, e.g. salt baths, liquid suspensions only one element being diffused
    • C23C10/24—Salt bath containing the element to be diffused

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Description

Verfahren zur Herstellung von Oberflächenlegierungen durch Diffusion Zusatz zum Patent 677113 Die Erfindung betrifft eine Weiterausbildung des Verfahrens nach Patent 677 113, das ein Verfahren zur Herstellung von Oberflächenlegierungen durch Eindiffundienenlassen fester Metalle in die Oberfläche fester Metalle darstellt, wobei sich der Vorgang in einer neutralen Salzschmelze vollzieht, die die für die Diffusion günstigste Erwärmung erhält.Process for the production of surface alloys by diffusion Addendum to patent 677113 The invention relates to a further development of the method according to patent 677 113, which describes a process for the production of surface alloys by allowing solid metals to diffuse into the surface of solid metals, whereby the process takes place in a neutral molten salt, which is responsible for the Diffusion receives the most favorable heating.

Es hat sich herausgestellt, daß sich zur Durchführung des Verfahrens :gemäß dem Hauptpatent nicht nur Schmelzbäder von Salzen eignen, daß vielmehr auch Alkalien oder eine Mischung von Salzen und Alkalien als Schmelzbad verwendet werden können, die ebenfalls nicht in die Diffusionsmetalle diffundieren. Die Diffusionsbehandlung kann z. B. in geschmolzenen Alkalien oder alkalischen Salzen und auch in einem Schmelzgemisch von Salzen und Alkalien durchgeführt werden.It has been found that to carry out the method : According to the main patent, not only molten baths of salts are suitable, but rather that too Alkalis or a mixture of salts and alkalis can be used as the molten bath that also do not diffuse into the diffusion metals. The diffusion treatment can e.g. B. in molten alkalis or alkaline salts and also in a melt mixture of salts and alkalis.

Wie bei dem Verfahren gemäß dem Hauptpatent können die zu diffundierenden Metalle auch bei der Verwendung von alkalischen Diffusionsbädern auf die verschiedenste Weise mit den Gegenständen, deren Oberfläche 1egiert werden soll, in Verbindung gebracht werden. Der Diffusionsstoff kann dem Bad beispielsweise in Pulverform beigemischt sein, er kann aber auch als zusammenhängende Schicht, beispielsweise galvanisch oder durch das Metallspritzverfahren als Überzug oder in Form einer aufgestrichenen Paste, auf den zu legierenden Gegenstand aufgetragen und dann erfindungsgemäß in alkalischen Bädern der Diffusion unterworfen werden.As with the method according to the main patent, the can be diffused Metals also with the use of alkaline diffusion baths on the most diverse In connection with the objects whose surface is to be alloyed to be brought. The diffusion substance can be added to the bath, for example in powder form be, but it can also be as a cohesive layer, for example galvanically or by the metal spray process as a coating or in the form of a painted on Paste, applied to the object to be alloyed and then according to the invention in alkaline baths are subjected to diffusion.

Claims (2)

PATENTANSPRÜCHE: 1. Verfahren zur Herstellung von Oberflächenlegierungen durch Eindiffundierenlassen fester Metalle in die Oberfläche fester Metalle, vornehmlich in die Oberfläche von Eisen, nach Patent 677 113, dadurch gekennzeichnet, daß der Diffusionsvorgang in alkalischen Schmelzen, z. B. in geschmolzenen Alkalien oder alkalischen Salzen, durchgeführt wird. PATENT CLAIMS: 1. Process for the production of surface alloys by allowing solid metals to diffuse into the surface of solid metals, primarily in the surface of iron, according to patent 677 113, characterized in that the Diffusion process in alkaline melts, e.g. B. in molten alkalis or alkaline salts. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß die Diffusionsbehandlung in einem Schmelzgemisch von Salzen und Alkalien durchgeführt wird.2. The method according to claim 1, characterized in that that the diffusion treatment is carried out in a melt mixture of salts and alkalis will.
DE1935B0168478 1935-01-30 1935-01-30 Process for the production of surface alloys by diffusion Expired DE688751C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1935B0168478 DE688751C (en) 1935-01-30 1935-01-30 Process for the production of surface alloys by diffusion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1935B0168478 DE688751C (en) 1935-01-30 1935-01-30 Process for the production of surface alloys by diffusion

Publications (1)

Publication Number Publication Date
DE688751C true DE688751C (en) 1940-03-01

Family

ID=7006098

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1935B0168478 Expired DE688751C (en) 1935-01-30 1935-01-30 Process for the production of surface alloys by diffusion

Country Status (1)

Country Link
DE (1) DE688751C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253989B (en) * 1963-03-28 1967-11-09 Du Pont Process for the diffusion of metals into an iron surface
DE1259669B (en) * 1963-12-30 1968-01-25 Du Pont Process for the production of an oxidation-resistant surface layer on objects made of refractory metals
DE1283636B (en) * 1964-05-14 1968-11-21 Du Pont Process for the production of a platinum diffusion layer on or in iron surfaces

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1253989B (en) * 1963-03-28 1967-11-09 Du Pont Process for the diffusion of metals into an iron surface
DE1259669B (en) * 1963-12-30 1968-01-25 Du Pont Process for the production of an oxidation-resistant surface layer on objects made of refractory metals
DE1283636B (en) * 1964-05-14 1968-11-21 Du Pont Process for the production of a platinum diffusion layer on or in iron surfaces

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