DE1091404B - Process for preventing tarnishing of objects made of silver, silver alloys or silver-plated materials stored or transported in a container - Google Patents

Process for preventing tarnishing of objects made of silver, silver alloys or silver-plated materials stored or transported in a container

Info

Publication number
DE1091404B
DE1091404B DES56446A DES0056446A DE1091404B DE 1091404 B DE1091404 B DE 1091404B DE S56446 A DES56446 A DE S56446A DE S0056446 A DES0056446 A DE S0056446A DE 1091404 B DE1091404 B DE 1091404B
Authority
DE
Germany
Prior art keywords
silver
container
transported
objects made
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.)
Pending
Application number
DES56446A
Other languages
German (de)
Inventor
Dr Phil Albert Lotz
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.)
Siemens AG
Original Assignee
Siemens 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 Siemens AG filed Critical Siemens AG
Priority to DES56446A priority Critical patent/DE1091404B/en
Publication of DE1091404B publication Critical patent/DE1091404B/en
Pending 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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F15/00—Other methods of preventing corrosion or incrustation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Packages (AREA)
  • Coating By Spraying Or Casting (AREA)

Description

Verfahren zur Verhinderung des Anlaufens von in einem Behälter aufbewahrten oder transportierten Gegenständen aus Silber, Silberlegierungen oder versilberten Werkstoffen Die Erfindung betrifft ein Verfahren zur Verhinderung des Anlaufens von in einem Behälter aufbewahrten oder transportierten Gegenständen aus Silber, Silberlegierungen oder versilberten Stoffen. Solche Behälter werden beispielsweise in Werkstätten, Lagern oder auch in Haushaltungen zur Aufbewahrung oder auch zum Transport von z. B. silbernen oder versilberten Kontaktstücken, Schrauben, Muttern, Anschlußfahnen, Sammelschienen usw. für Schalter, Relais, silberne oder versilberte Teile für Kondensatoren oder andere elektrische Apparate, ferner Eßbestecke, Schmucksachen u. dgl. benutzt. Es hat sich gezeigt, daß diese Gegenstände im Laufe der Zeit anlaufen und unansehnlich werden.Procedure for preventing tarnishing of items stored in a container or transported objects made of silver, silver alloys or silver-plated Materials The invention relates to a method for preventing tarnishing of silver objects stored or transported in a container, Silver alloys or silver-plated materials. Such containers are for example in workshops, warehouses or even in households for storage or for Transport of z. B. silver or silver-plated contact pieces, screws, nuts, Terminal lugs, busbars, etc. for switches, relays, silver or silver-plated Parts for capacitors or other electrical apparatus, also cutlery, jewelry and the like used. It has been found that these items tarnish over time and become unsightly.

Es ist zur Abhilfe schon bekannt, Gegenstände der genannten Art für den beabsichtigten Zweck in den Behältern dadurch zu schützen, daß diese Behälter mit Verkleidungen, wie z. B. kupferhaltigen Platten, versehen werden.It is already known to remedy this, objects of the type mentioned for to protect the intended purpose in the containers by keeping these containers with cladding, such. B. copper-containing plates are provided.

Unter anderem ist empfohlen, die Behälterwände mit Kupfersalzen zu imprägnieren oder in die Behälter Einlagekörper aus Kupfersalzen zu legen. Diese Verfahren haben den Nachteil, daß sie teuer und daß die verwendeten Stoffe giftig sind, wodurch die mit der Behandlung der Waren beschäftigten Personen gefährdet werden können.Among other things, it is recommended to cover the container walls with copper salts impregnate or place inlay bodies made of copper salts in the containers. These Processes have the disadvantage that they are expensive and that the substances used are toxic which endanger the persons involved in handling the goods can be.

Diese Nachteile werden erfindungsgernäß dadurch vermieden, daß auf die Innenwände des Behälters ein Überzug aus Kupfer gespritzt wird. Das Aufspritzen ist besonders vorteilhaft, weil aufgespritztes Kupfer eine sehr feine Verteilung der Kupferpartikelchen aufweist. Beim Aufspritzen bilden sich nämlich Kupfertröpfchen, die an den Flächen und auch aneinander haften, wodurch eine besonders große Oberfläche erzielt wird. Das aufgespritzte Kupfer hat die besondere Wirkung, daß es verhältnismäßig viel Kupferoxyd bzw. Kupferoxydul enthält, welches sich beim Aufspritzen bei hohen Temperaturen bildet. Gemäß der weiteren Erfindung wird daher beim Aufspritzen eine möglichst hohe Temperatur benutzt. Durch die Erfindung wird erreicht, daß die in der Luft befindlichen schädlichen Gase, welche das Anlaufen der Silbergegenstände bewirken, von dem Kupfer bzw. Kupferoxyd begierig aufgenommen werden. Solche Gase sind in der Hauptsache Schwefelwasserstoff und Ozon.These disadvantages are avoided according to the invention in that on The inner walls of the container are coated with a copper coating. The splash is particularly advantageous because sprayed-on copper has a very fine distribution which has copper particles. When spraying on, copper droplets are formed, which adhere to the surfaces and also to each other, creating a particularly large surface is achieved. The sprayed-on copper has the special effect that it is proportionate contains a lot of copper oxide or copper oxide, which when sprayed on at high Temperatures. According to the further invention is therefore when spraying the highest possible temperature is used. The invention ensures that the in harmful gases in the air, which can tarnish silver objects cause, are eagerly absorbed by the copper or copper oxide. Such gases are mainly hydrogen sulfide and ozone.

Claims (1)

PATENTANSPRUCII- Verfahren zur Verhinderung des Anlaufens von in einem Behälter aufbewahrten oder transportierten Gegenständen aus Silber, Silberlegierungen oder versilberten Werkstoffen, dadurch gekennzeichnet, daß auf die Innenwände des Behälters ein Überzug aus Kupfer aufgespritzt wird. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 886 996. PATENT claims method for preventing tarnishing of objects made of silver, silver alloys or silver-plated materials stored or transported in a container, characterized in that a coating of copper is sprayed onto the inner walls of the container. Documents considered: German Patent No. 886 996.
DES56446A 1953-10-30 1953-10-30 Process for preventing tarnishing of objects made of silver, silver alloys or silver-plated materials stored or transported in a container Pending DE1091404B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES56446A DE1091404B (en) 1953-10-30 1953-10-30 Process for preventing tarnishing of objects made of silver, silver alloys or silver-plated materials stored or transported in a container

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES56446A DE1091404B (en) 1953-10-30 1953-10-30 Process for preventing tarnishing of objects made of silver, silver alloys or silver-plated materials stored or transported in a container

Publications (1)

Publication Number Publication Date
DE1091404B true DE1091404B (en) 1960-10-20

Family

ID=7491102

Family Applications (1)

Application Number Title Priority Date Filing Date
DES56446A Pending DE1091404B (en) 1953-10-30 1953-10-30 Process for preventing tarnishing of objects made of silver, silver alloys or silver-plated materials stored or transported in a container

Country Status (1)

Country Link
DE (1) DE1091404B (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE886996C (en) * 1951-07-15 1953-08-20 Wmf Wuerttemberg Metallwaren Tarnish inhibitor for silver goods

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE886996C (en) * 1951-07-15 1953-08-20 Wmf Wuerttemberg Metallwaren Tarnish inhibitor for silver goods

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