AT54716B - Process for cleaning metal objects made of silver and gold, electroplating and the like. - Google Patents
Process for cleaning metal objects made of silver and gold, electroplating and the like.Info
- Publication number
- AT54716B AT54716B AT54716DA AT54716B AT 54716 B AT54716 B AT 54716B AT 54716D A AT54716D A AT 54716DA AT 54716 B AT54716 B AT 54716B
- Authority
- AT
- Austria
- Prior art keywords
- gold
- silver
- electroplating
- metal objects
- objects
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 4
- 238000004140 cleaning Methods 0.000 title description 4
- 229910052751 metal Inorganic materials 0.000 title description 4
- 239000002184 metal Substances 0.000 title description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title description 3
- 229910052737 gold Inorganic materials 0.000 title description 3
- 239000010931 gold Substances 0.000 title description 3
- 229910052709 silver Inorganic materials 0.000 title description 3
- 239000004332 silver Substances 0.000 title description 3
- 238000009713 electroplating Methods 0.000 title description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 claims description 8
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 claims description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 claims 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 7
- 239000000243 solution Substances 0.000 description 5
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 4
- 239000012670 alkaline solution Substances 0.000 description 2
- 229940072033 potash Drugs 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000011086 high cleaning Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 235000015320 potassium carbonate Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
Landscapes
- Electroplating And Plating Baths Therefor (AREA)
- Electroplating Methods And Accessories (AREA)
- Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zum Reinigen von Metallgegenständen aus Silber und Gold, galvanischen
Plattierungen und dgl.
Es ist bekannt Metallgegenstände derart zu reinigen, dass man sie in alkalischer Lösung mit einer Aluminiumplatte in Berührung bringt. Kalilauge ist aber für diesen Zweck nicht gut geeignet, da sie die Wirksamkeit des Aluminiums beeinträchtigt. Die Erfindung umfasst die Bereitung einer schwach erhitzten Lösung von viel Natrium-und wenig Kaliumkarbonat, in welche die zu putzenden Gegenstände eingetaucht und in Berührung mit einer in dieser Lösung befindlichen Aluminiumplatte gebracht werden, worauf die geputzte Gegenstände in später zu beschreibender Weise abzuspülen und zu trocknen sind.
Gerade die Verwendung der Soda-Pottaschemischung bat sich als besonders vorteilhaft herausgestellt ; da hiebei Fleckenbildung vermieden und ein überaus hoher Reinigungseffekt erzielt wird.
Am zweckmässigsten wird das neuartige Putzmittel in Pulverform aus etwa 99 Gewichtsteilen wasserfreiem Natriumkarbonat und etwa 1 Gewichtsteil wasserfreiem Kaliumkarbonat durch inniges Mischen beider hergestellt. Diese Mischung ist haltbar und kann, jederzeit gebrauchsfertig, aufbewahrt werden.
Um Gegenstände zu reinigen, wird ungefähr ein Esslöffel voll des Pulvers in etwa 21/2 l heissen Wassers gelöst, das sich vorzugsweise in einem glasierten Gefäss befindet. In diese heisse Lösung wird dann Aluminium, vorzugsweise in Form einer Platte, eingelegt und mit diesem die von Fett befreiten Gegenstände in Berührung gebracht, indem sie in die Lösung eingetaucht und auf die Aluminiumplatte gelegt werden. Es tritt sofort eine energische Reaktion ein, welche in wenigen Minuten, je nach dem Zustande der zu reinigenden Gegenstände, diesen an allen Stellen das ursprüngliche glänzende und schöne Aussehen wiedergibt.
Dann werden die Gegenstände herausgenommen und in vorzugsweise heissem Wasser abgespult, worauf sie mit einem weichen Tuch oder Rehleder abgetrocknet werden.
Die verwendete Aluminiumplatte ist vorzugsweise durchlöchert, damit sie leichter in der Flüssigkeit zu Boden sinken kann und ermöglicht, dass Schmutz und Unreinlichkeiten, die von den geputzten Gegenständen entfernt wurden, durch die Löcher auf den Boden des Gefässes sinken, in welchem die Reinigung stattgefunden hat. Das Aluminium kann die im Handel übliche Reinheit besitzen und kann oftmals benützt werden, bevor seine
Wirkung abnimmt.
PATENT-ANSPRÜCHE :
1. Verfahren zum Reinigen von Metallgegenständen, insbesondere aus Silber und
Gold, galvanischen Plattierungen und dgl., wobei die zu reinigenden Gegenstände in alkalischer Lösung mit metallischem Aluminium in Berührung gebracht werden, dadurch gciu'nnz chnet, dass zur Herstellung der Lösung eine pulverige Mischung benützt wird, die aus einem grossen Überschuss von Soda neben sehr wenig Pottasche besteht.
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Process for cleaning metal objects made of silver and gold, galvanic
Plating and the like
It is known to clean metal objects in such a way that they are brought into contact with an aluminum plate in an alkaline solution. However, potassium hydroxide is not well suited for this purpose, as it impairs the effectiveness of the aluminum. The invention comprises the preparation of a slightly heated solution of a lot of sodium and a little potassium carbonate, in which the objects to be cleaned are immersed and brought into contact with an aluminum plate located in this solution, whereupon the cleaned objects are rinsed and dried in a manner to be described later are.
The use of the soda-potash mixture turned out to be particularly advantageous; because staining is avoided and an extremely high cleaning effect is achieved.
Most conveniently, the new cleaning agent in powder form is made from about 99 parts by weight of anhydrous sodium carbonate and about 1 part by weight of anhydrous potassium carbonate by intimately mixing the two. This mixture is durable and can be stored ready for use at any time.
To clean objects, about a tablespoon full of the powder is dissolved in about 21/2 l of hot water, which is preferably in a glazed vessel. Aluminum, preferably in the form of a plate, is then placed in this hot solution and the objects freed from fat are brought into contact with this by dipping them into the solution and placing them on the aluminum plate. An energetic reaction occurs immediately, which in a few minutes, depending on the condition of the objects to be cleaned, gives them back their original shiny and beautiful appearance in all places.
Then the objects are taken out and rinsed in preferably hot water, after which they are dried with a soft cloth or deerskin.
The aluminum plate used is preferably perforated so that it can more easily sink to the bottom in the liquid and allows dirt and impurities that have been removed from the cleaned objects to sink through the holes to the bottom of the vessel in which the cleaning has taken place. The aluminum can have the purity customary in the trade and can often be used before its
Effect decreases.
PATENT CLAIMS:
1. Process for cleaning metal objects, in particular made of silver and
Gold, electroplating and the like, whereby the objects to be cleaned are brought into contact with metallic aluminum in an alkaline solution, as a result of the fact that a powdery mixture is used to prepare the solution, which consists of a large excess of soda in addition to very much there is little potash.
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT54716T | 1911-04-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT54716B true AT54716B (en) | 1912-08-10 |
Family
ID=3576145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT54716D AT54716B (en) | 1911-04-29 | 1911-04-29 | Process for cleaning metal objects made of silver and gold, electroplating and the like. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT54716B (en) |
-
1911
- 1911-04-29 AT AT54716D patent/AT54716B/en active
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