Glossary entry

German term or phrase:

brünieren

English translation:

black-finishing/black-finish

Added to glossary by Steffen Walter
Mar 19, 2009 02:18
15 yrs ago
2 viewers *
German term

brün. / brüniert

German to English Tech/Engineering Materials (Plastics, Ceramics, etc.) Surface Finishing
This is a surface surface finishing of a carbon steel material.
Would appreciate if someone can enlighten on what this process means.
Thanks.
Proposed translations (English)
4 black-finishing/black-finish
Change log

Mar 19, 2009 08:10: Steffen Walter changed "Term asked" from "brün" to "brün. / brüniert" , "Field (specific)" from "Manufacturing" to "Materials (Plastics, Ceramics, etc.)"

Mar 19, 2009 08:10: Steffen Walter changed "Edited KOG entry" from "<a href="/profile/1018204">jas87's</a> old entry - "brün"" to ""black-finishing/black-finish""

Proposed translations

31 mins
German term (edited): brün
Selected

black-finishing/black-finish

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4 KudoZ points awarded for this answer. Comment: "thanks so much for the prompt reply!"

Reference comments

33 mins
Reference:

brünieren

I suspect there is a period after *brün* as in Stahl brün. /brün. Stahl. If this is the case you are looking for the translation of the German term brünieren (brüniert):

Reference:
Unter Brünieren versteht man die Schwarzfärbung von Eisenoberflächen durch Eintauchen der Werkstücke in saure bzw. alkalische Lösungen oder Salzschmelzen. Es bilden sich Mischoxidschichten (Konversionsschichten) aus FeO und Fe2O3 von tiefschwarzer Farbe. Durch die geringe Konversionsschicht von ca. 1µm bleiben die brünierten Werkstücke weitestgehend maßhaltig. Wegen der Porosität der Brünierschichten besitzen sie einen nur geringen Korrosionsschutz, der sich aber durch Beölen oder Befetten deutlich verbessern lässt.
Note from asker:
Thanks for your help!
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