DE918305C - Process to achieve high scale resistance of metallic objects - Google Patents

Process to achieve high scale resistance of metallic objects

Info

Publication number
DE918305C
DE918305C DEV4625A DEV0004625A DE918305C DE 918305 C DE918305 C DE 918305C DE V4625 A DEV4625 A DE V4625A DE V0004625 A DEV0004625 A DE V0004625A DE 918305 C DE918305 C DE 918305C
Authority
DE
Germany
Prior art keywords
lithium carbonate
mixed
metallic objects
aluminum oxide
oxide
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
DEV4625A
Other languages
German (de)
Inventor
Hans Schriewer
Dr Herbert Schulze
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.)
Ver Deutsche Metallwerke AG
Original Assignee
Ver Deutsche Metallwerke AG
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 Ver Deutsche Metallwerke AG filed Critical Ver Deutsche Metallwerke AG
Priority to DEV4625A priority Critical patent/DE918305C/en
Application granted granted Critical
Publication of DE918305C publication Critical patent/DE918305C/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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/18—After-treatment
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C32/00—Non-ferrous alloys containing at least 5% by weight but less than 50% by weight of oxides, carbides, borides, nitrides, silicides or other metal compounds, e.g. oxynitrides, sulfides, whether added as such or formed in situ
    • 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
    • C23C24/00—Coating starting from inorganic powder
    • 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
    • C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
    • C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
    • C23C4/06—Metallic material
    • C23C4/08—Metallic material containing only metal elements

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Chemical Treatment Of Metals (AREA)

Description

Verfahren zur Erzielung hoher Zunderfestigkeit metallischer Gegenstände Zusatz zum Patent 860 589 Die Erfindung bezieht sich auf ein Verfahren zur Erzielung einer hohen Zunderfestigkeit metallischer Gegenstände, wie insbesondere solcher aus Stahl jeder Art. Die dem Verfahren zugrunde liegenden Maßnahmen dienen dazu, die Verzunderung weitgehend herabzusetzen oder möglichst vollkommen auszuschließen.Process for achieving high scale resistance of metallic objects Addendum to Patent 860,589 The invention relates to a method of achieving a high scale resistance of metallic objects, especially such made of steel of any kind. The measures on which the process is based serve to to reduce the scaling to a large extent or to exclude it as completely as possible.

Die Erfindung bezweckt eine weitere Ausbildung eines solchen Verfahrens, wie es Gegenstand des Patents 86o 589 .ist. Die Gegenstände, die einer besonderen Behandlung nach Art der im Hauptpatent angegebenen Regel unterworfen werden, können Temperaturen von über 8oo° ausgesetzt sein und der EinwirkunZ korrosiver Gase unterliegen. Um die Zunderfestigkeit zu erhöhen, ist bereits vorgeschlagen worden, die Gegenstände mit Chrom-Nickel-Eisen- bzw. Chrom-Nickel-Legierungen zu bespritzen und sie alsdann einer Nachbehandlung zu unterwerfen, indem man auf .die Spritzschicht beispielsweise Magnesiumoxy.d, Natron- oder Kalilauge oder auch Kalzium-Silizium aufbringt.The invention aims at a further development of such a method, as it is the subject of patent 86o 589. The objects that make a special one Treatment according to the type of rule specified in the main patent can be subjected Be exposed to temperatures of over 8oo ° and be subject to the effects of corrosive gases. In order to increase the scale resistance, it has already been proposed that the articles with chrome-nickel-iron or chrome-nickel alloys and then spray them to be subjected to an after-treatment by, for example, the spray coating Magnesiumoxy.d, sodium or potassium hydroxide solution or calcium silicon applies.

Es wurde nun gefunden, daß überraschenderweise eine ebenfalls hohe Zunderfestigkeit dann erreicht werden kann, wenn die Nachtbehandlung mit Chromoxyd, Lithiumverbindungen, insbesondere Lithiumkarbonat, oder auch Tonerde erfolgt. Die in dieser Weise behandelten Gegenstände aus Stahl bleiben zunderfest, selbst bei Temperaturen bis i ioo°. Das Aufbringen der vorerwähnten Stoffe kann auf verschiedene Weise erfolgen. Eineinfacher Weg führt über das Anrühren der zu einem feinen Pulver gemahlenen Nac hbehändhungsmittel mit Lack, vorzugsweise einem solchen .auf Bitumenbasis. Der Lack wird dann auf die Metallspritzschicht aufgetragen.It has now been found that, surprisingly, a likewise high Scale resistance can be achieved if the night treatment with chromium oxide, Lithium compounds, in particular lithium carbonate, or alumina takes place. the Objects made of steel treated in this way remain resistant to scaling, even with Temperatures up to 100 °. The application of the aforementioned substances can be done in several ways. A simple way is to stir the After-treatment with varnish, ground to a fine powder, preferably a bitumen-based one. The paint is then applied to the metal spray coating applied.

Es besteht weiterhin die Möglichkeit, Lithiumverbindungen, insbesondere Lithiumkarbonat, Aluminiumoxyd und Magnesiumoxyd, einzeln oder auch miteinander vermischt mit Wasser anzurühren und auf .die, Metallspritzschicht aufzubringen. Die vorgenannten Stoffe können zweckmäßig so miteinander vermischt sein, .daß der Anteil an Lithiumkarbonat 5 bis 2o % beträgt und der restliche Anteil sich auf Aluminiumoxyd und Magnesiumoxyd verteilt.There is still the option of lithium compounds, in particular Lithium carbonate, aluminum oxide and magnesium oxide, individually or together mixed with water to be mixed and applied to .die, sprayed metal layer. The aforementioned substances can expediently be mixed with one another in such a way that the The proportion of lithium carbonate is 5 to 2o% and the remainder is aluminum oxide and magnesium oxide distributed.

Schließlich können auch Lithiumkarbonat und Aluminiumoxyd miteinander vermischt und in der einen oder :anderen der vorbeschriebenen Weise auf die Spritzschicht aufgebracht werden. Das Mischungsverhältnis beträgt i : io bis i : i. Beim Anrühren mit Wasser ist darauf zu .achten, daß die Aufschwemmung gut durch Aufstreichen mit dem Pinsel aufgetragen werden kann.Finally, lithium carbonate and aluminum oxide can also interact with one another mixed and in one or the other of the above-described manner on the sprayed layer be applied. The mixing ratio is i: io to i: i. When mixing with water care must be taken to ensure that the suspension is good by spreading it with can be applied with a brush.

Für die Durchführung des Verfahrens gelten die im Patent 86o 589 angegebenen weiteren Regeln, insbesondere .die über die Legierungszusammensetzungen der Spritzmetallschichten und die Angaben über die Zusätze, die diese erhalten können.For the implementation of the method, those specified in patent 86o 589 apply further rules, especially those about the alloy composition of the spray metal layers and the details of the additives that can contain them.

Claims (1)

PATENTANSPRÜCHE: i. Verfahren zum Erzielen hoher Zwnderfestigkeit metallischer Gegenstände, die Temperaturen von über 8oo° und der Einwirkung korrosiver Gase ausgesetzt sind, unter Verwendung von Chrom-Niekel-Eisen- bzw. Chrom-Nickel-Legierungen in Form von Metall-spritzschichten, nach Patent 86o 589, dadurch Bekennzeichnet, daß derartige metallische Gegenstände einer Nachbehandlung mit Chromoxyd, Lithiumverbindungen, wie insbesondere Lithi@umkarbonat, oder Tonerde unterworfen werden. a. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß die Nachbehandlungsmittel in Form eines feingemahlenen Pulvers mit Lack, beispielsweise einem solchen auf Bitumenbasis, angerührt und dann auf .die Metallspritzschicht aufgetragen werden. 3. Verfahren nach Anspruch i, dadurch gekennzeichnet, daß Lithiumverbind@ungen, insbesondere Lithiumkarbonat, Aluminiumoxyd und Magnesiumoxyd, einzeln oder gemeinsam; miteinander vermischt und mit Wasser angerührt werden. 4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß 5 bis 2,o o/o Litthiumkarhonat in einem Gemisch, indem sie Aluminiumoxyd und Magnesiumoxyd in, beliebigem Verhältnis als Rest befinden, verwendet werden. 5. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß Lithiumkarbonat und Aluminiumoxyd oder Lithiumkarbonat und Magnesiumoxyd im Verhältnis i : io bis i : i miteinander gemischt werden. Angezogene Druckschriften: Deutsche Patentschrift Nr. 8o4 28o; USA.-Patentschrift Nr. 2 494 908.PATENT CLAIMS: i. Process for achieving high tensile strength metallic objects, the temperatures of over 8oo ° and the effect of corrosive Gases are exposed using chrome-Niekel-iron or chrome-nickel alloys in the form of metal spray coatings, according to patent 86o 589, characterized that such metallic objects are treated with chromium oxide, lithium compounds, how in particular lithium carbonate, or alumina are subjected. a. procedure according to claim i, characterized in that the aftertreatment agent is in the form of a finely ground powder with varnish, for example bitumen-based, mixed and then applied to the metal spray coating. 3. Procedure according to claim i, characterized in that lithium compounds, in particular Lithium carbonate, aluminum oxide and magnesium oxide, individually or together; together mixed and mixed with water. 4. The method according to claim 3, characterized characterized in that 5 to 2, o / o lithium carbonate in a mixture by adding aluminum oxide and magnesium oxide in any proportion as the remainder can be used. 5. The method according to claim 3, characterized in that lithium carbonate and aluminum oxide or lithium carbonate and magnesium oxide in the ratio i: io to i: i with one another be mixed. Cited publications: German Patent No. 8o4 28o; U.S. Patent No. 2,494,908.
DEV4625A 1952-05-24 1952-05-24 Process to achieve high scale resistance of metallic objects Expired DE918305C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEV4625A DE918305C (en) 1952-05-24 1952-05-24 Process to achieve high scale resistance of metallic objects

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV4625A DE918305C (en) 1952-05-24 1952-05-24 Process to achieve high scale resistance of metallic objects

Publications (1)

Publication Number Publication Date
DE918305C true DE918305C (en) 1954-09-23

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEV4625A Expired DE918305C (en) 1952-05-24 1952-05-24 Process to achieve high scale resistance of metallic objects

Country Status (1)

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DE (1) DE918305C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166584B (en) * 1956-03-09 1964-03-26 Norton Co Process for the production of metal oxide coatings with high resistance to thermal shocks by spraying

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494908A (en) * 1947-02-07 1950-01-17 American Chem Paint Co Method of coating ferriferous metals and zinciferous metals
DE804280C (en) * 1948-10-01 1951-04-19 Metallgesellschaft Akt Ges Process for the phosphating of metals

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2494908A (en) * 1947-02-07 1950-01-17 American Chem Paint Co Method of coating ferriferous metals and zinciferous metals
DE804280C (en) * 1948-10-01 1951-04-19 Metallgesellschaft Akt Ges Process for the phosphating of metals

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1166584B (en) * 1956-03-09 1964-03-26 Norton Co Process for the production of metal oxide coatings with high resistance to thermal shocks by spraying

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