DE163415C - - Google Patents
Info
- Publication number
- DE163415C DE163415C DENDAT163415D DE163415DA DE163415C DE 163415 C DE163415 C DE 163415C DE NDAT163415 D DENDAT163415 D DE NDAT163415D DE 163415D A DE163415D A DE 163415DA DE 163415 C DE163415 C DE 163415C
- Authority
- DE
- Germany
- Prior art keywords
- retort
- objects
- atmospheric air
- tube
- gases
- Prior art date
- Legal status (The legal status 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 status listed.)
- Active
Links
- 239000007789 gas Substances 0.000 claims description 8
- 230000001590 oxidative Effects 0.000 claims description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 4
- 238000000137 annealing Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000001257 hydrogen Substances 0.000 claims description 2
- 229910052739 hydrogen Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 229910052757 nitrogen Inorganic materials 0.000 claims description 2
- 238000001816 cooling Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
KLASSE 48 d. CLASS 48 d.
In der Patentschrift 158111 ist eine Vorrichtung zum Ausglühen von Metallgegenständen beschrieben, bei weicher der Abschluß der atmosphärischen Luft von der Retorte, in der das Glühen der auf einer endlosen Bahn bewegten Gegenstände erfolgt, dadurch bewirkt wird, daß an die beiden Enden der Retorte sich nach oben erstreckende Rohre angeschlossen sind, welche mit einem nicht oxydierenden Gas, das schwerer ist als die atmosphärische Luft, angefüllt sind.In patent specification 158111 there is a device described for annealing metal objects, with softer the finish the atmospheric air from the retort, in which the glow of the on an endless Web moving objects takes place, is caused by the fact that at the two ends of the Retort pipes that extend upwards are connected to one that is not oxidizing gas that is heavier than atmospheric air.
Es ist nun gefunden worden, daß man auch einen Abschluß der Retorte schaffen kann (der die Berührung der noch heißen ausgeglühten Gegenstände mit der atmosphärischen Luft verhindert), wenn man die an die Retorte angeschlossenen Rohre nicht nach oben, sondern nach unten führt und sie mit einem nicht oxydierenden Gas von geringerem spezifischen Gewicht, als die atmosphärische Luft besitzt, anfüllt. Es wird in diesem Falle zweckmäßig sein, die beiden Rohre sich zuerst etwas nach oben erstrecken zu lassen und dann erst nach unten.It has now been found that one can also create a closure of the retort (the touch of the still hot annealed objects with the atmospheric air) if the pipes connected to the retort are not connected upwards, but downwards and they are filled with a non-oxidizing gas of lesser magnitude specific gravity than the atmospheric air possesses. In this case it will be useful to both To let the pipes extend a little upwards first and then downwards.
Ein Apparat zur Ausführung des Verfahrens ist auf der Zeichnung schematisch dargestellt. Gemäß dem Hauptpatent werden die Gegenstände auf einer bewegten Unterlage, z.B. einer endlosen Bahn, die aus den Glühwagen c gebildet wird, in das Rohr b in der Richtung der Pfeile eingeführt, in der Retorte α erhitzt, sodann weiter geführt zu dem Rohr g, in dem die Gegenstände sich wieder abkühlen, so daß sie erkaltet nach dem Räume e gelangen, aus dem sie in die atmosphärische Luft herausgenommen werden. Damit die Gegenstände auch wirklich erst abgekühlt mit der atmosphärischen Luft in Berührung kommen, ist das Rohr g ziemlich lang gewählt, so daß die Luftkühlung ausreicht, oder aber man versieht das Rohr g besser mit einer geeigneten Kühlvorrichtung, z. B. Wasserkühlvorrichtung. Die Retorte liegt im Ofen/", d ist ein Rohr zum Einführen der Gase. Die Gegenstände können daher durch die vorstehende Vorrichtung innerhalb der leichten, nicht oxydierenden Gase erkalten. Als leichtes Gas kommen insbesondere Wasserstoff und Stickstoff in Betracht; es können aber selbstverständlich andere, nicht oxydierende Gase von geringerem spezifischen Gewicht, als die Luft hat, z. B. Alkoholdämpfe, Verwendung finden. An apparatus for carrying out the method is shown schematically in the drawing. According to the main patent, the objects are introduced into the tube b in the direction of the arrows on a moving surface, for example an endless path, which is formed from the annealing carriages c, heated in the retort α , then passed on to the tube g, in which the objects cool down again, so that they reach the room e cold, from which they are taken out into the atmospheric air. So that the objects really only come into contact with the atmospheric air when they have cooled down, the tube g is chosen to be quite long so that the air cooling is sufficient, or the tube g is better equipped with a suitable cooling device, e.g. B. Water cooling device. The retort is in the furnace / ", which is a tube for introducing the gases. The objects can therefore cool down within the light, non-oxidizing gases using the above device. Hydrogen and nitrogen in particular are suitable as light gases, but others can of course also be used , non-oxidizing gases with a lower specific weight than the air, e.g. alcohol vapors, are used.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE163415C true DE163415C (en) |
Family
ID=429104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT163415D Active DE163415C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE163415C (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE918933C (en) * | 1950-07-27 | 1954-10-07 | Robert Von Linde Dipl Ing | Process for the production of a flammable bright glow gas |
DE929972C (en) * | 1951-06-17 | 1955-07-07 | Robert Von Dipl-Ing Linde | Method and device for operating gas burners and such ovens that require an atmosphere that prevents the formation of oxides |
-
0
- DE DENDAT163415D patent/DE163415C/de active Active
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE918933C (en) * | 1950-07-27 | 1954-10-07 | Robert Von Linde Dipl Ing | Process for the production of a flammable bright glow gas |
DE929972C (en) * | 1951-06-17 | 1955-07-07 | Robert Von Dipl-Ing Linde | Method and device for operating gas burners and such ovens that require an atmosphere that prevents the formation of oxides |
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