DE479554C - Process for removing the excess coating metal after galvanizing - Google Patents
Process for removing the excess coating metal after galvanizingInfo
- Publication number
- DE479554C DE479554C DEST43549D DEST043549D DE479554C DE 479554 C DE479554 C DE 479554C DE ST43549 D DEST43549 D DE ST43549D DE ST043549 D DEST043549 D DE ST043549D DE 479554 C DE479554 C DE 479554C
- Authority
- DE
- Germany
- Prior art keywords
- galvanizing
- excess coating
- coating metal
- chloride
- coating
- 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
Links
- 239000011248 coating agent Substances 0.000 title claims description 10
- 238000000576 coating method Methods 0.000 title claims description 10
- 238000000034 method Methods 0.000 title claims description 7
- 229910052751 metal Inorganic materials 0.000 title claims description 6
- 239000002184 metal Substances 0.000 title claims description 6
- 238000005246 galvanizing Methods 0.000 title description 9
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 5
- 150000003839 salts Chemical class 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 5
- 239000011701 zinc Substances 0.000 claims description 5
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 4
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 4
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 claims description 4
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 2
- 239000001103 potassium chloride Substances 0.000 claims description 2
- 235000011164 potassium chloride Nutrition 0.000 claims description 2
- 239000011780 sodium chloride Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 2
- 206010039509 Scab Diseases 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002996 emotional effect Effects 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005479 sherardizing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- C23C2/00—Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
- C23C2/14—Removing excess of molten coatings; Controlling or regulating the coating thickness
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Coating With Molten Metal (AREA)
Description
Verfahren zur Entfernung des überschüssigen Überzugsmetalls nach der Verzinkung Die vorliegende Erfindung betrifft ein Verfahren zur Entfernung des überschüssigen Überzugsmetalls, insbesondere zur Anwendung der Feuerverzinkung von Schrauben und Muttern, und bezweckt die Herstellung eines gleichmäßigen, glatten und haltbaren Überzuges.Process for removing the excess coating metal after Galvanizing The present invention relates to a method for removing the excess Coating metal, in particular for the use of hot-dip galvanizing screws and Nuts, and is intended to produce a uniform, smooth and durable Coating.
Die Verzinkung von Eisen im feuerflüssigen Metallbade hat den Nachteil, daß der Zinküberzug ungleichmäßig und nicht immer glatt ausfällt. Dieser Übelstand tritt aus dem Grunde nicht allzusehr in Erscheinung, weil man allgemein nur solche Teile feuerverzinkt, an die hinsichtlich der Gleichmäßigkeit und Glätte des Überzuges keine allzu hohen Anforderungen gestellt werden. Andere Verzinkungsverfahren, beispielsweise das galvanische oder die Sherardisierung, weisen die erwähnten Mängel nicht auf, gestatten auf der anderen Seite aber nicht die Erzielung eines Überzuges von der Güte des bei der im feuerflüssigen Metallbade erzielten.The galvanizing of iron in a molten metal bath has the disadvantage that the zinc coating is uneven and not always smooth. This evil does not appear too much for the reason that one generally only has such Hot-dip galvanized parts, which are related to the evenness and smoothness of the coating the requirements are not too high. Other galvanizing processes, for example galvanic or sherardization do not have the defects mentioned, on the other hand, do not allow the achievement of a coating of the Quality of the achieved in the molten metal bath.
Insbesondere Schrauben und Muttern sind daher für die Feuerverzinkung ungünstige Objekte, so daß sie bisher hauptsächlich durch Sherardisieren verzinkt wurden. Die Feuerverzinkung konnte aus dem Grunde nicht angewandt werden, weil infolge des ungleichmäßigen Zinküberzuges ein Nachschneiden des Gewindes erforderlich wurde, wodurch sich ein teilweises Freilegen des Eisens ergab.Bolts and nuts in particular are therefore suitable for hot-dip galvanizing unfavorable objects, so that so far they have been galvanized mainly by sherardizing became. The hot-dip galvanizing could not be used because as a result the uneven zinc coating required re-cutting of the thread, which resulted in a partial exposure of the iron.
Die vorliegende Erfindung gibt ein Verfahren der Feuerverzinkung an, welches alle Vorteil dieser Verfahren besitzt und außerdem einen gleichmäßig glatten und haltbaren Überzug ergibt und insbesondere bei der Massenverzinkung von Schrauben und Muttern anwendbar ist.The present invention provides a method of hot-dip galvanizing, which has all the advantages of this method and also has an evenly smooth one and durable coating and especially in the case of bulk galvanizing of screws and nuts is applicable.
Gemäß der Erfindungwerden die zu behandelnden Teile nach der Herausnahme aus dem Zinkbad in geschmolzene Salze oder deren Gemische eingetaucht und in diesen bewegt. Durch nachfolgendes Eintauchen in Wasser werden die anhaftenden Salzkrusten gelöst. Die Temperatur des Salzbades wird derart gewählt, daß eine genügende Dünnflüssigkeit der Schmelze erreicht wird. Für die Herstellung des Salzbades kommen beispielsweise Natriumchlorid, Kaliumchlorid, Calciumchlorid und Magnesiumchlorid in Betracht.According to the invention, the parts to be treated become after removal immersed in molten salts or mixtures thereof from the zinc bath and immersed in them emotional. Subsequent immersion in water removes the adhering salt crusts solved. The temperature of the salt bath is chosen so that a sufficient thin liquid the melt is reached. For example, for the preparation of the salt bath Sodium chloride, potassium chloride, calcium chloride and magnesium chloride can be considered.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST43549D DE479554C (en) | 1927-12-06 | 1927-12-06 | Process for removing the excess coating metal after galvanizing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEST43549D DE479554C (en) | 1927-12-06 | 1927-12-06 | Process for removing the excess coating metal after galvanizing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE479554C true DE479554C (en) | 1929-07-19 |
Family
ID=7464448
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEST43549D Expired DE479554C (en) | 1927-12-06 | 1927-12-06 | Process for removing the excess coating metal after galvanizing |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE479554C (en) |
-
1927
- 1927-12-06 DE DEST43549D patent/DE479554C/en not_active Expired
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