AT78784B - Method of cementing iron and steel. - Google Patents
Method of cementing iron and steel.Info
- 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
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims description 12
- 229910052742 iron Inorganic materials 0.000 title claims description 6
- 238000000034 method Methods 0.000 title claims description 4
- 229910000831 Steel Inorganic materials 0.000 title claims description 3
- 239000010959 steel Substances 0.000 title claims description 3
- 239000007788 liquid Substances 0.000 claims description 2
- 239000003795 chemical substances by application Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 229910000677 High-carbon steel Inorganic materials 0.000 description 1
- 229910000997 High-speed steel Inorganic materials 0.000 description 1
- 229910001315 Tool steel Inorganic materials 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Landscapes
- 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.
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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
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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-
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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.
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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
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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-
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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)
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) |
-
1918
- 1918-02-25 AT AT78784D patent/AT78784B/en active
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