AT47103B - Electrically heated salt bath hardening furnace. - Google Patents
Electrically heated salt bath hardening furnace.Info
- Publication number
- AT47103B AT47103B AT47103DA AT47103B AT 47103 B AT47103 B AT 47103B AT 47103D A AT47103D A AT 47103DA AT 47103 B AT47103 B AT 47103B
- Authority
- AT
- Austria
- Prior art keywords
- salt bath
- electrically heated
- hardening furnace
- heated salt
- bath hardening
- Prior art date
Links
- 150000003839 salts Chemical class 0.000 title description 6
- 239000002184 metal Substances 0.000 description 6
- 238000000137 annealing Methods 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
Landscapes
- Furnace Details (AREA)
Description
<Desc/Clms Page number 1>
Elektrisch beheizter Salzbadhärteofen.
Die jetzt bekannten elektrischen Gluh- oder Härteöfen verwenden die Metallsalze selbst a) s Widerstände, weiche durch den Stromdurchgang auf die zum Glühen resp. Härten nötige Temperatur gebracht werden. Die Vorteile dieser direkten Erhitzungen hegen in der ökonomischen Beheizung, denn der Verlust an Wärme kann durch entsprechende Einbettung fast vollständig vermieden werden.
Die Nachteile dieser direkten Beheizung der Metallsalze bestehen in dem Umstand, dass längere Metallstücke immer nur senkrecht zu der Stromrichtung eingeführt werden dürfeu, da die Metall selbst besser leiten wie das Sa) xbad und wenn diese Vorsichtsmassregel nicht beachtet wird, es möglich ist, dass die Metallgegenständo heisser werden, wie das Bad und verbrennen.
Ein weiterer grosser Nachteil der direkt geheizten Bäder ist, dass zu deren Betrieh nur Wechselstrom verwendet werden kann, da Gleichstrom die Metallsalze galvanisch zersetzen wurde.
EMI1.1
dünn ist und deshalb die Wärmeümeübertraung eine bessere ist.
Nach dieser Art nusgefürte Härte- und Gluhöfen konnen sowohl mit Gleichstrom
EMI1.2
**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.
<Desc / Clms Page number 1>
Electrically heated salt bath hardening furnace.
The now known electric annealing or hardening furnaces use the metal salts themselves a) s resistors, soft through the passage of current to the annealing respectively. Hardening to be brought to the necessary temperature. The advantages of this direct heating lie in the economical heating, because the loss of heat can be almost completely avoided by appropriate embedding.
The disadvantages of this direct heating of the metal salts consist in the fact that longer pieces of metal can only ever be inserted perpendicular to the direction of the current, since the metal itself conducts better than the salt bath and if this precautionary rule is not observed, it is possible that the Metal objects get hotter, like the bathroom, and burn.
Another major disadvantage of the directly heated baths is that only alternating current can be used for their operation, since direct current would galvanically decompose the metal salts.
EMI1.1
is thin and therefore the heat transfer is better.
Hardness and annealing furnaces produced according to this type can be used with direct current
EMI1.2
** WARNING ** End of DESC field may overlap beginning of CLMS **.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE47103X | 1909-06-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT47103B true AT47103B (en) | 1911-03-27 |
Family
ID=5625517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT47103D AT47103B (en) | 1909-06-14 | 1910-03-07 | Electrically heated salt bath hardening furnace. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT47103B (en) |
-
1910
- 1910-03-07 AT AT47103D patent/AT47103B/en active
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