DE78132C - Manufacture of partly enamelled, partly electroplated metal dishes - Google Patents
Manufacture of partly enamelled, partly electroplated metal dishesInfo
- Publication number
- DE78132C DE78132C DENDAT78132D DE78132DA DE78132C DE 78132 C DE78132 C DE 78132C DE NDAT78132 D DENDAT78132 D DE NDAT78132D DE 78132D A DE78132D A DE 78132DA DE 78132 C DE78132 C DE 78132C
- Authority
- DE
- Germany
- Prior art keywords
- partly
- enamelled
- manufacture
- enamel
- electroplated metal
- 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 - Lifetime
Links
- 239000002184 metal Substances 0.000 title claims description 8
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- 210000003298 Dental Enamel Anatomy 0.000 claims description 10
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 239000011241 protective layer Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000001681 protective Effects 0.000 description 3
- 238000005488 sandblasting Methods 0.000 description 2
- KGBXLFKZBHKPEV-UHFFFAOYSA-N Boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-N Carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 description 1
- 239000004327 boric acid Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002320 enamel (paints) Substances 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
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
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
-
- 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
- C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
- C23D5/00—Coating with enamels or vitreous layers
- C23D5/08—Applying enamels non-uniformly over the surface
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Table Devices Or Equipment (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMTPATENT OFFICE
Vorliegende Erfindung betrifft ein Verfahren, um theilweise emaillirte, theilweise galvanoplattirte Metallgeschirre und Gegenstände, besonders aber als Ersatz der bekannten zweiseitig emaillirten Blechgeschirre und innen emaillirte Geschirre aus Blech herzustellen, deren äufsere Seite durch einen galvanoplastischen Metallüberzug vor Oxydation geschützt und gleichzeitig decorirt wird.The present invention relates to a method for partially enamelled, partially electroplated Metal dishes and objects, especially as a replacement for the well-known two-sided to manufacture enamelled sheet metal crockery and internally enamelled sheet metal crockery, the outer side of which is protected from oxidation by a galvanoplastic metal coating and is decorated at the same time.
Die zu emaillirenden Flächentheile der rohen Geschirre und Gegenstände werden zunächst von den anhaftenden Oxyden vollständig gereinigt, was entweder durch Anwendung des Sandstrahlgebläses oder einer geeigneten Beize in bekannter Weise geschieht. Hierauf werden die so vorbereiteten Flächen mit Emailmasse gedeckt, die in mehreren Aufträgen in üblicher Weise eingebrannt wird.The surface parts of the raw crockery and objects to be enamelled are first completely cleansed of the adhering oxides, which can either be achieved by applying the Sandblasting blower or a suitable stain happens in a known manner. Be on it the surfaces prepared in this way are covered with enamel, which is usually done in several orders Way is branded.
Bei diesem mehrmaligen Einbrennen des Emails hat sich nun der Uebelstand ergeben, dafs an den nicht emaillirten Stellen des Gegenstandes durch Verbindung des Metalles mit Sauerstoff eine sogenannte Zunderschicht gebildet wird, welche eine derartige Consistenz erhält, dafs sie ohne Beschädigung des Emailbelages weder auf chemischem noch mechanischem Wege zu entfernen ist.With this repeated burn-in of the enamel, the inconvenience has now arisen, that in the non-enamelled parts of the object by joining the metal a so-called scale layer is formed with oxygen, which has such a consistency maintains that it does not damage the enamel coating, neither chemically nor mechanically Ways to remove is.
Um diesen Nachtheil zu beseitigen, werden die nicht zu emaillirenden, später aber zu galvanoplattirenden Stellen durch eine Schutzschicht gedeckt, welche nach entsprechender Säuberung der Stellen aufgetragen wird.In order to eliminate this disadvantage, the ones that cannot be enameled, but later become galvanoplattirenden places covered by a protective layer, which after appropriate Cleaning up the areas is applied.
Diese Schutzschicht besteht aus einem sehr leichtflüssigen Bleiemail, dessen Zusammensetzung sich nach dem im Emaillirofen angewendeten Hitzegrad richtet. Dieses Schutzemail besteht zu Y3 bis Y4 aus Mennige und der Rest aus Borsäure oder Borax, welchen Bestandtheilen aufserdem bis zu 21 pCt. Soda beigesetzt werden kann.This protective layer consists of a very light-bodied lead enamel, the composition of which depends on the degree of heat used in the enamel furnace. Y 3 to Y 4 of this protective enamel consist of red lead and the remainder of boric acid or borax, which also contain up to 21 pCt. Soda can be buried.
Durch das wiederholte Einbrennen des inneren Deckemails· wird das äufsere Schutzemail derart spröde, dafs es mittels eines Sandstrahlgebläses oder in anderer mechanischer oder chemischer Weise sehr leicht entfernt werden kann, um den Gegenstand an diesen Stellen zu galvanoplattiren. Nach Entfernung dieses Schutzemails wird der Gegenstand zweckmäfsig erst geschliffen und polirt, um alsdann in einem galvanischen Bade den Metallüberzug zu erhalten.By repeatedly burning in the inner cover enamel · the outer protective enamel becomes so brittle that it can be made mechanically by means of a sandblasting blower or other means or can be removed chemically very easily in order to attach the item to these Places to be electroplated. After removing this protective enamel, the item becomes functional first ground and polished, and then the metal coating in a galvanic bath to obtain.
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE78132C true DE78132C (en) |
Family
ID=350885
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT78132D Expired - Lifetime DE78132C (en) | Manufacture of partly enamelled, partly electroplated metal dishes |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE78132C (en) |
-
0
- DE DENDAT78132D patent/DE78132C/en not_active Expired - Lifetime
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