AT125190B - Pan for hot-dip galvanizing. - Google Patents

Pan for hot-dip galvanizing.

Info

Publication number
AT125190B
AT125190B AT125190DA AT125190B AT 125190 B AT125190 B AT 125190B AT 125190D A AT125190D A AT 125190DA AT 125190 B AT125190 B AT 125190B
Authority
AT
Austria
Prior art keywords
pan
hot
dip galvanizing
galvanizing
aluminum
Prior art date
Application number
Other languages
German (de)
Original Assignee
Felten & Guilleaume Carlswerk
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 Felten & Guilleaume Carlswerk filed Critical Felten & Guilleaume Carlswerk
Application granted granted Critical
Publication of AT125190B publication Critical patent/AT125190B/en

Links

Description

  

   <Desc/Clms Page number 1> 
 



  Pfanne zur   Feuerverzinkung.   



   Es ist bekannt, dass beim Feuerverzinken das in der Pfanne befindliche geschmolzene Zink mit dem aus Eisen bestehenden Material der Pfanne eine Eisen-Zinklegierung (Hartzink) bildet. Hiemit ist einmal der Nachteil verbunden, dass die Wandung der Pfanne angegriffen wird ; ausserdem ist eine Rück- 
 EMI1.1 
 entsteht. 



   Nach dem Vorschlag der vorliegenden Erfindung wird nun auf der Innenseite der Verzinkpfanne ein Überzug aus Aluminiumoxyd aufgebracht. Diese Aluminiumoxydschicht kann durch eine vor Ingebrauchnahme der Verzinkpfanne vorgenommene Erhitzung einer auf die Innenseite der   VerzinkpfannK   aufgebrachten Aluminiumschicht hergestellt sein. Die Aluminiumschicht wird dadurch oberflächlich noch mit einer festhaftenden schützenden Aluminiumoxydschicht versehen. Das Aufbringen der Aluminiumschicht auf der Wandung der Pfanne kann beispielsweise durch Aufspritzen geschehen, worauf nach erfolgter Erhitzung der Wandung die Aluminiumschieht oberflächlich oxydiert wird. Eine Verstärkung des so entstandenen   Aluminiumoxydüberzuges   kann durch nochmaliges Bespritzen der erhitzten Wandung mit Aluminium erzielt werden.

   Diese Massnahme hat eine wesentliche Herabsetzung der Hartzinkbildung zur Folge. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



  Pan for hot-dip galvanizing.



   It is known that during hot-dip galvanizing, the molten zinc in the ladle forms an iron-zinc alloy (hard zinc) with the iron material of the ladle. This has the disadvantage that the wall of the pan is attacked; there is also a back
 EMI1.1
 arises.



   According to the proposal of the present invention, a coating of aluminum oxide is now applied to the inside of the galvanizing pan. This aluminum oxide layer can be produced by heating an aluminum layer applied to the inside of the galvanizing pan before the galvanizing pan is used. The surface of the aluminum layer is thus provided with a firmly adhering protective aluminum oxide layer. The aluminum layer can be applied to the wall of the pan, for example, by spraying, whereupon the surface of the aluminum layer is oxidized after the wall has been heated. The resulting aluminum oxide coating can be strengthened by spraying the heated wall with aluminum again.

   This measure results in a significant reduction in the formation of hard zinc.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

Claims (1)

PATENT-ANSPRUCH : Pfanne zur Feuerverzinkung, gekennzeichnet durch einen Überzug aus Aluminium an der Innen- fläche, der oberflächlich oxydiert ist. **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Pan for hot-dip galvanizing, characterized by an aluminum coating on the inner surface, which is oxidized on the surface. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT125190D 1929-05-13 1930-02-21 Pan for hot-dip galvanizing. AT125190B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE125190X 1929-05-13

Publications (1)

Publication Number Publication Date
AT125190B true AT125190B (en) 1931-10-26

Family

ID=5658564

Family Applications (1)

Application Number Title Priority Date Filing Date
AT125190D AT125190B (en) 1929-05-13 1930-02-21 Pan for hot-dip galvanizing.

Country Status (1)

Country Link
AT (1) AT125190B (en)

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