DE2514810C2 - Process for improving the properties of powdery Cu alloys for the powder flame spraying process - Google Patents

Process for improving the properties of powdery Cu alloys for the powder flame spraying process

Info

Publication number
DE2514810C2
DE2514810C2 DE2514810A DE2514810A DE2514810C2 DE 2514810 C2 DE2514810 C2 DE 2514810C2 DE 2514810 A DE2514810 A DE 2514810A DE 2514810 A DE2514810 A DE 2514810A DE 2514810 C2 DE2514810 C2 DE 2514810C2
Authority
DE
Germany
Prior art keywords
powdery
alloys
properties
flame spraying
improving
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
DE2514810A
Other languages
German (de)
Other versions
DE2514810A1 (en
Inventor
Walter 8421 Sandersdorf Neudahm
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.)
Castolin 6239 Kriftel De GmbH
Original Assignee
Castolin 6239 Kriftel De GmbH
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 Castolin 6239 Kriftel De GmbH filed Critical Castolin 6239 Kriftel De GmbH
Priority to DE2514810A priority Critical patent/DE2514810C2/en
Publication of DE2514810A1 publication Critical patent/DE2514810A1/en
Application granted granted Critical
Publication of DE2514810C2 publication Critical patent/DE2514810C2/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
    • C23C4/04—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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Plasma & Fusion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Coating By Spraying Or Casting (AREA)
  • Powder Metallurgy (AREA)

Description

Die Erfindung betrifft ein Verfahren zur Verbesserung der Eigenschaften von im Pulverflammspritzverfahren aufgetragenen, pulverförmigen Cu-Legierungen, wie Al-Bronzen od. dgLThe invention relates to a method for improving the properties of powder flame spraying Applied, powdery Cu alloys, such as Al-bronzes or the like

Die genannten Legierungen werden beispielsweise u. a. für Reparaturen benutzt, um verschlissene Werkstocke nicht durch neue ersetzen zu müssen.The alloys mentioned are, for example, among others. used for repairs to worn workstocks not having to replace with new ones.

Nach einer solchen Beschichtungsbehandlung sind gewisse nachteilige Eigenschaften an derart behandelten Werkstücken zu beobachten.After such a coating treatment, certain adverse properties are left in those treated Observe workpieces.

So ist beispielsweise das Einstechen von Nuten od. dgl. nicht mehr ohne weiteres möglich, da die Bearbeitungskanten leicht ausbrechen. Handelt es sich um unter Druck stehende, flüssigkeitsführende Behältnisse, so läßt die Dichtheit der aufgesprühten Beschichtung zu wünschen übrig oder bei aufgesprühten Kontakten die elektrische LeitfähigkeitFor example, grooving or the like is no longer possible without further ado, since the Easily break out machining edges. In the case of pressurized, liquid-carrying containers, so the tightness of the sprayed-on coating leaves something to be desired or in the case of sprayed-on Contacts the electrical conductivity

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu beseitigen und ein Verfahren zur Verin-«erung der Eigenschaften der genannten Legterungsbeschichtungen zu schaffen.The invention is based on the object of eliminating these disadvantages and a method for Reduction in the properties of the above-mentioned layer coatings to accomplish.

Diese Aufgabe ist mit einem Verfahren nach der Erfindung dadurch gelöst, daß die pulverförmige Cu-Legierung mit pulverförmigen Cu-P-Lot etwa im Verhältnis 50 :50 gemischt und nach dem Auftragen auf ca. 700°C erwärmt wird.This object is achieved with a method according to the invention in that the powdery Cu alloy mixed with powdered Cu-P solder in a ratio of about 50:50 and applied after application is heated to approx. 700 ° C.

Zwar ist nach der US-PS 29 08 589 und nach der CH-PS 3 06 477 der Einsatz von relativ niedrig schmelzenden Phosphorlegierungen beim Flammspritzen bekannt, aber im Falle der US-PS handelt es sich um Ni-Legierungen mit einem relativ niedrigen Phosphor-Anteil (6—12%), wobei die feingemahlenen Legierungspartikel als solche durch Flammspritzen aufgetragen werden. Beim Verfahren nach der CH-PS wird eine Ag-Zn-Cd-Cu-Legierung in Pulverform aufgespritzt und eingeschmolzen und anschließend eine Phosphor-Legierung mit 5% feinkörnigem Wolframkarbid aufgesprüht According to US-PS 29 08 589 and CH-PS 3 06 477, the use of is relatively low melting phosphorus alloys known in flame spraying, but in the case of the US-PS it is Ni alloys with a relatively low phosphorus content (6-12%), the finely ground alloy particles being applied as such by flame spraying will. In the process according to CH-PS, an Ag-Zn-Cd-Cu alloy is sprayed on in powder form and melted and then a phosphorus alloy with 5% fine-grain tungsten carbide is sprayed on

Mischungen im Sinne des erfindungsgemäßen Verfahrens mit dem Effekt, daß die Cu-P-Lot Mischungskomponente die Partikel der Cu-Legierung umfließen bzw. umhüllen und im Ergebnis ein dichteres, besser bearbeitbares und besser leitfähiges Gefüge der Auftragsschicht ergeben, liegen daher nicht vor.Mixtures in the sense of the method according to the invention with the effect that the Cu-P solder mixture components flow around the particles of the Cu alloy or envelop and as a result a denser, better workable and better conductive structure of the Resulting application layer are therefore not available.

Wie sich gezeigt hat, können dabei ohne Schwierigkeiten und ohne Kantenbrüchen beispielsweise ausgeschlagene Ringnuten an Kolben repariert und die Nuten durch entsprechende Bearbeitung (Einstechen) wieder auf das ursprüngliche Konstruktionsmaß für die einzusetzenden Kolbenringe gebracht werden.As has been shown, you can do this without any difficulty and repaired, for example, worn-out ring grooves on pistons and the grooves without broken edges through appropriate processing (grooving) back to the original design dimensions for the to be used piston rings are brought.

Außerdem zeigen solche Beschichtungen in anderen Anwendungsfällen der beispielsweise genannten Art verbesserte Dichtigkeits- und Leitfähigkeitseigenschaften. In addition, in other applications of the type mentioned, for example, such coatings show improved tightness and conductivity properties.

Claims (1)

Patentanspruch:Claim: Verfahren zur Verbesserung der Eigenschaften von im Pulverflammspritzverfahren aufgetragenen pulverförmigen Cu-Legierungen, wie Al-Bronzen u.dgl., dadurch gekennzeichnet, daß die pulverförmige Cu-Legierung mit pulverförmigen Cu-P-Lot etwa im Verhältnis 50:50 gemischt, aufgesprüht und nach dem Auftragen auf ca. 700° C erwärmt wird.Process for improving the properties of those applied by powder flame spraying powdery Cu alloys, such as Al bronzes and the like., characterized in that the powdery Cu alloy with powdery Cu-P solder mixed in a ratio of 50:50, sprayed on and after application to approx. 700 ° C is heated.
DE2514810A 1975-04-04 1975-04-04 Process for improving the properties of powdery Cu alloys for the powder flame spraying process Expired DE2514810C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE2514810A DE2514810C2 (en) 1975-04-04 1975-04-04 Process for improving the properties of powdery Cu alloys for the powder flame spraying process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2514810A DE2514810C2 (en) 1975-04-04 1975-04-04 Process for improving the properties of powdery Cu alloys for the powder flame spraying process

Publications (2)

Publication Number Publication Date
DE2514810A1 DE2514810A1 (en) 1976-10-14
DE2514810C2 true DE2514810C2 (en) 1983-01-05

Family

ID=5943117

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2514810A Expired DE2514810C2 (en) 1975-04-04 1975-04-04 Process for improving the properties of powdery Cu alloys for the powder flame spraying process

Country Status (1)

Country Link
DE (1) DE2514810C2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1577075A (en) * 1976-07-19 1980-10-15 Eutectic Corp Alloy flame spray powder

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH306477A (en) * 1943-05-26 1955-04-15 Siemens Ag Device with controllable magnetic circuit.
US2908589A (en) * 1957-04-16 1959-10-13 Gen Am Transport Method of flame spraying an alloy and the resulting article

Also Published As

Publication number Publication date
DE2514810A1 (en) 1976-10-14

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Legal Events

Date Code Title Description
OD Request for examination
D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee