DE2514810A1 - Flame sprayed powder coatings of copper alloys - contg. copper-phosphorus brazing powder to increase density and strength - Google Patents

Flame sprayed powder coatings of copper alloys - contg. copper-phosphorus brazing powder to increase density and strength

Info

Publication number
DE2514810A1
DE2514810A1 DE19752514810 DE2514810A DE2514810A1 DE 2514810 A1 DE2514810 A1 DE 2514810A1 DE 19752514810 DE19752514810 DE 19752514810 DE 2514810 A DE2514810 A DE 2514810A DE 2514810 A1 DE2514810 A1 DE 2514810A1
Authority
DE
Germany
Prior art keywords
copper
contg
alloys
strength
powder
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.)
Granted
Application number
DE19752514810
Other languages
German (de)
Other versions
DE2514810C2 (en
Inventor
Walter 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 GmbH Austria
Original Assignee
Castolin GmbH Austria
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 GmbH Austria filed Critical Castolin GmbH Austria
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

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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)
  • Powder Metallurgy (AREA)
  • Coating By Spraying Or Casting (AREA)

Abstract

In a process for improving the properties of deposits of copper alloys obtd. by powder flame spraying, such as aluminium-bronzes or similar alloys the powdered copper alloy is mixed in approximately equal parts, i.e. 50:50 with powdered copper-phosphorus brazing metal and, after forming the deposit, the latter is heated to about 700 degrees C. Improves the density, machineability and electrical contact properties of the deposits.

Description

Verfahren zur Verbesserung der Eigenschaften von pulverförmigen Cu-Legierungen für das Pulverflammspritzverfahren Die Erfindung betrifft ein Verfahren zur Verbesserung der Eigenschaften von im Pllverflammspritzverfahren aufgetragenen, pulverförmigen Cu-Legierungen, wie Alu-Bronzen od. dgl. Process for improving the properties of powdery Cu alloys for the powder flame spraying process The invention relates to a method for improvement the properties of powdery products applied in the flame spraying process Cu alloys, such as aluminum bronzes or the like.

Die genannten Legierungen werden beispielsweise u.a. für Reparaturen benutzt, um verschlissene Werkstücke nicht durch neue ersetzen zu müssen.The alloys mentioned are used, for example, for repairs used to avoid having to replace worn workpieces with new ones.

Nach einer solchen Beschichtungsbehandlung sind gewisse nachteilige Eigenschaften an derart behandelten Werkstücken zu beobachten.After such a coating treatment, there are certain disadvantages Observe the properties of workpieces treated in this way.

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, flüssigder der keitsführende Behältnisse, so läßt häufig die Dichtheit/aufgesprühten Beschichtung zu wünschen übrig oder bei aufgesprühten Kontakten die elektrische Leitfähigkeit.For example, grooving or the like is no longer necessary possible without further ado, since the machining edges break out easily. Is it around pressurized, liquid the carrying containers, so often the tightness / sprayed coating leaves something to be desired or at contacts sprayed on the electrical conductivity.

Der Erfindung liegt die Aufgabe zugrunde, diese Nachteile zu beseitigen und ein Verfahren zur Verbesserung der Eigenschaften der genannten Legierungsbeschichtungen zu schaffen.The invention is based on the object of eliminating these disadvantages and a method of improving the properties of said alloy 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. 7000C erwärmt wird.This object is achieved with a method according to the invention in that that the powdery Cu alloy with powdery Cu-P solder approximately in the ratio 50:50 mixed and heated to approx. 7000C after application.

Durch dieses Verfahren werden die Partikel der pulverförmigen Cu-Legierung vom Cu-P-Lot lrflossen bzw. umhüllt, wodurch sich beispielsweise ein dichteres, besser bearbeitbares und besser leitfähiges Gefüge der Auftragsschicht ergibt.By this process, the particles of the powdery Cu alloy by the Cu-P solder or enveloped, whereby, for example, a denser, results in a better workable and better conductive structure of the coating layer.

Wie sich gezeigt hat, können dabei ohne Schwierigkeiten und ohne Kantenbrüche 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, this can be done without difficulty and without edge breaks For example, worn out annular grooves on pistons were repaired and the grooves through corresponding processing (grooving) back to the original construction dimension for the piston rings to be used.

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

Claims (1)

Patentanspruch: Claim: Verfahren zur Verbesserung der igenschaften von im Pulverflammspritzverfahren aufgetragenen pulverförmigen Cu-Legierungen, wie Alu-Bronzen u.dgl., d a d u r c h g e k e n n -z e i c h n e t , daßdie pulverförmige Cu-Legierung mit pulverförmigen Cu-P-Lot etwa im Verhältnis 50:50 gemischt, aufgesprüht und nach dem Auftragen auf ca. 7000C erwärmt wird.Process to improve the properties of the powder flame spraying process applied powdery Cu alloys, such as aluminum bronzes and the like., d a d u r c h e k e n n -z e i c h n e t that the powdery Cu alloy with powdery Cu-P solder mixed in a ratio of about 50:50, sprayed on and applied after application is heated to approx. 7000C.
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 true DE2514810A1 (en) 1976-10-14
DE2514810C2 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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359212A1 (en) * 1976-07-19 1978-02-17 Eutectic Corp HARD ALUMINUM BRONZE ALLOY POWDER APPLICABLE BY SPRAYING UNDER A FLAME

Citations (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

Patent Citations (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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2359212A1 (en) * 1976-07-19 1978-02-17 Eutectic Corp HARD ALUMINUM BRONZE ALLOY POWDER APPLICABLE BY SPRAYING UNDER A FLAME

Also Published As

Publication number Publication date
DE2514810C2 (en) 1983-01-05

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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