AT78784B - Method of cementing iron and steel. - Google Patents

Method of cementing iron and steel.

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Publication number
AT78784B
AT78784B AT78784DA AT78784B AT 78784 B AT78784 B AT 78784B AT 78784D A AT78784D A AT 78784DA AT 78784 B AT78784 B AT 78784B
Authority
AT
Austria
Prior art keywords
iron
cementing
steel
cemented
salt
Prior art date
Application number
Other languages
German (de)
Inventor
Walter Beyer
Original Assignee
Walter Beyer
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 Walter Beyer filed Critical Walter Beyer
Application granted granted Critical
Publication of AT78784B publication Critical patent/AT78784B/en

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  • Chemical Treatment Of Metals (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zum Zementieren von Eisen und Stahl. 



   Die Erhitzung mit fiissigen Salz-oderMetallbädern gestattete bisher nur die Härtung von kohlenstoffreichen Stahl, wie   Schnelldl'el1stahl   oder Werkzeugstahl, nicht aber das Zementieren von koblenstoffarmen Stählen oder Eisen, weil die Schwierigkeit bestand, das Härtemittel und das zu härtende Metallstück in dauernder Verbindung während ihrer Anwesenheit im Salzbade zu erhalten, sofern man nicht zeitraubende Vorbereitungen treffen wollte. 
 EMI1.1 
 im   Salz-oder Metallbade   in einfacher Weise zu ermöglichen, wobei die   zn   verwendenden Umhüllungen wiederholt gebraucht werden können. 



   Man nimmt zu diesem Zwecke einen am   besten rohrförmigenHohlkörper'A   mit geschlossenem Boden und möglichst rundem Querschnitt, der aus Eisen, Chamotte oder   ähn-   lichen Stoffen hergestellt sein kann. Auf den Boden desselben bringt man eine Schicht Härte. mittel B (Zementierungsmittel), legt darauf den zu zementierenden Gegenstand C, der vorher 
 EMI1.2 
 einen zweiten zu zementierenden Gegenstand E, bedeckt ihn wieder   mit Härtemittel F   und fährt so fort, bis man eine Höhe erreicht hat, die etwa zwei Drittel der Tiefe des Salzbades beträgt. Hat man nur einen Gegenstand zu zementieren, so genügt es, wenn man denselben allseitig mit Härtemittel   umgibt. ( ; stellt   einen Deckel dar, der nach   Be-   darf angebracht sein kann. 



   Es ist für die Hohlkörper vor allem die Verwendung von   Chamotterobren   zu em- 
 EMI1.3 
 sofern letzteres mit dem Eisen in direkte Verbindung kommt. 



   Am geeignetsten ist die Anwendung eines Verfahrens, bei dem die zu zementierenden Gegenstände mit dem Härtemittel beklebt und im Hohlkörper A in   Kieselsand eingebettet   werden. 



   Zum   bequemen Einhalten   des Hohlkörpers in das Salzbad empfiehlt sich die Benutzung eines an sich bekannten Drahtkorbes II. 

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



   <Desc / Clms Page number 1>
 



  Method of cementing iron and steel.



   Up to now, heating with liquid salt or metal baths has only allowed high-carbon steel, such as high-speed steel or tool steel, to be hardened, but not the cementing of low-carbon steels or iron, because it was difficult to keep the hardening agent and the piece of metal to be hardened in permanent contact To maintain presence in the salt bath, unless one wanted to make time-consuming preparations.
 EMI1.1
 to allow in a simple manner in the salt or metal bath, whereby the coverings used can be used repeatedly.



   For this purpose, a hollow body, preferably tubular, with a closed bottom and as round as possible a cross-section, which can be made of iron, chamotte or similar materials, is used. A layer of hardness is applied to the bottom of it. agent B (cementing agent), places on it the object to be cemented C, the one before
 EMI1.2
 a second object E to be cemented, covers it again with hardener F and continues in this way until one has reached a height which is about two thirds the depth of the salt bath. If you only have one object to cement, it is sufficient if you surround it on all sides with hardening agent. (; represents a cover that can be attached as required.



   For the hollow bodies it is above all the use of Chamotterobren to em-
 EMI1.3
 if the latter comes into direct contact with iron.



   Most suitable is the use of a method in which the objects to be cemented are glued with the hardening agent and embedded in the hollow body A in silica sand.



   The use of a known wire basket II is recommended for easy holding of the hollow body in the salt bath.

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

 

Claims (1)

PATKVF AXSPRFCH : Verfahren zum Zementiern von Eisen und Stahl durch Erbitzen in flüssigem Sal@- EMI1.4 EMI1.5 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATKVF AXSPRFCH: Method of cementing iron and steel by pitting in liquid sal @ - EMI1.4 EMI1.5 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT78784D 1917-11-06 1918-02-25 Method of cementing iron and steel. AT78784B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE78784X 1917-11-06

Publications (1)

Publication Number Publication Date
AT78784B true AT78784B (en) 1919-10-25

Family

ID=5638357

Family Applications (1)

Application Number Title Priority Date Filing Date
AT78784D AT78784B (en) 1917-11-06 1918-02-25 Method of cementing iron and steel.

Country Status (1)

Country Link
AT (1) AT78784B (en)

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