DE732569C - Process for controllable cooling of glow ovens - Google Patents
Process for controllable cooling of glow ovensInfo
- Publication number
- DE732569C DE732569C DES141755D DES0141755D DE732569C DE 732569 C DE732569 C DE 732569C DE S141755 D DES141755 D DE S141755D DE S0141755 D DES0141755 D DE S0141755D DE 732569 C DE732569 C DE 732569C
- Authority
- DE
- Germany
- Prior art keywords
- gas
- furnace
- flow
- controllable cooling
- ovens
- 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.)
- Expired
Links
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
- C21D1/767—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material with forced gas circulation; Reheating thereof
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 Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Details (AREA)
Description
Verfahren zur regelbaren Abkühlung von Glühöfen
L"in eine besonders intensive Kreisströmung der Gase innerhalb des Ofens zu erreichen. kann man auch durch (las in den Ofen einz,cpreßte Gas mit Hilfe einer strahldüsenartigrcn zltisl)ildung der Einströmöffnung innerhalb des Ofens eine besondere Kreisströmung des Gases erzielen.L "in a particularly intensive circular flow of the gases within the Oven to reach. can also be read through (read into the furnace, pressed gas with the aid a jet nozzle-like formation of the inflow opening inside the furnace achieve a special circular flow of the gas.
Die Erfindung ist auf der beiliegenden Zeichnung beispielsweise veranschaulicht. abb. i zeigt in schematischer Zeichnung einen Querschnitt durch einen erfindungsgemäß ausgebildeten elektrisch behbizten Glühofen, und Abb.2 veranschaulicht ebenfalls im schematischen Querschnitt eine abgeänderte Ausführungsform der Erfindung.The invention is illustrated by way of example on the accompanying drawing. fig. i shows a schematic drawing of a cross section through an inventive trained electrically heated annealing furnace, and Fig.2 also illustrates in schematic cross section a modified embodiment of the invention.
Gleiche Teile tragen in den Abbildungen gleiche Bezugszeichen.The same parts have the same reference symbols in the figures.
Aus dem Ofenraum t wird durch den Rohrstutzen 2 und das gegebenenfalls mit einer Kühlvorrichtung 3 versehene Rohr 4. nach Passieren eines Hahnes 5 durch das Gebläse 6 ein Gasstrom abgesogen. Dieses Gebläse drückt dann das angesaugte Gas durch das Regelventil ; in die Düse 8, die mit dem Venturirohr 9 eine Strahlpumpe bildet. Der Gasstrom tritt dann durch den Stutzen i o wieder in den Ofctiraum ein. Durch die Strahlpttmpe wird durch die Leitung i i heißes Gas aus dem Ofen abgesaugt und gleichfalls durch die Üffnung i o in den Ofenraum zurückgepreßt.From the furnace space t is through the pipe socket 2 and optionally tube 4 provided with a cooling device 3 after passing through a tap 5 the fan 6 sucked a gas stream. This fan then pushes the sucked in Gas through the control valve; into the nozzle 8, which with the Venturi tube 9 is a jet pump forms. The gas flow then re-enters the office space through the nozzle i o. Hot gas is sucked out of the furnace through the line i i through the jet tube and also pressed back through the opening i o into the furnace space.
Durch die mittels des Ventils 12 regelbare I':eitung 13 kann nun vor dem Gebläse 6 in den aus der Leitung .l kommenden abgekühlten Teilstrom noch ein Gas- oder Luftstrom tieferer Temperatur eingeleitet werden. so daß hierdurch eine beliebige gewünschte Temperatur durch die 'Mischung der beiden Gasströme erzielt werden kann. Hinter dem Gebläse 6 kann durch die mittels eines Ventils 1.1 regelbare Leitung 15 licifxs Gas wieder zugeführt werden.The line 13, which can be regulated by means of the valve 12, can now proceed the fan 6 into the cooled partial flow coming from the line .l Gas or air flow of lower temperature can be introduced. so that thereby a any desired temperature achieved by the 'mixing of the two gas streams can be. Behind the fan 6 can be regulated by means of a valve 1.1 Line 15 licifxs gas are fed back.
Der durch die Zuführung der Zusatzgase im Ofen entstehende l:berdruck wird durch die Leitung 16 wieder ausgeglichen, die durch einen Hahn 1; entsprechend eingestellt werden kann.The oil overpressure resulting from the supply of the additional gases in the furnace is balanced out again through the line 1 6 , which is fed through a tap 1; can be adjusted accordingly.
In abb. 2 ist die üfnung i o, durch die die umgewälzten Kreisströme wieder in das Innere des Ofcnrolires eintreten, ebenfalls -in Forin einer Strahldüse ausgebildet. so <cif:) ein 7:0i1 der im t-)fcnraum strömenden Gase nicht durch die Lcitun- 1 i, sandcrn durch die Leitungen 18 fließt. Diese Leitun-en werden durch die Anordnung des Kanals t() iniici-li:iih (les Ofenraumes gebildet.In fig. 2 is the opening i o, through which the circulating currents circulate re-enter the interior of the furnace, also in the form of a jet nozzle educated. so <cif :) a 7: 0i1 of the gases flowing in the space do not pass through the Lcitun-1 i, sandcrn flows through the lines 18. These lines are through the arrangement of the channel t () iniici-li: iih (les furnace space formed.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES141755D DE732569C (en) | 1940-07-23 | 1940-07-23 | Process for controllable cooling of glow ovens |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DES141755D DE732569C (en) | 1940-07-23 | 1940-07-23 | Process for controllable cooling of glow ovens |
Publications (1)
Publication Number | Publication Date |
---|---|
DE732569C true DE732569C (en) | 1943-03-06 |
Family
ID=7541635
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DES141755D Expired DE732569C (en) | 1940-07-23 | 1940-07-23 | Process for controllable cooling of glow ovens |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE732569C (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1533836B1 (en) * | 1966-03-18 | 1971-07-29 | Fierro Esponja | Process for two-stage cooling of a metal sponge |
FR2810340A1 (en) * | 2000-06-20 | 2001-12-21 | Etudes Const Mecaniques | GAS QUENCHING CELL |
DE10304945A1 (en) * | 2003-02-06 | 2004-08-19 | Loi Thermprocess Gmbh | Process for the heat treatment of metal parts under protective gas |
-
1940
- 1940-07-23 DE DES141755D patent/DE732569C/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1533836B1 (en) * | 1966-03-18 | 1971-07-29 | Fierro Esponja | Process for two-stage cooling of a metal sponge |
FR2810340A1 (en) * | 2000-06-20 | 2001-12-21 | Etudes Const Mecaniques | GAS QUENCHING CELL |
EP1167549A1 (en) * | 2000-06-20 | 2002-01-02 | Etudes Et Constructions Mecaniques | Gas quenching chamber |
DE10304945A1 (en) * | 2003-02-06 | 2004-08-19 | Loi Thermprocess Gmbh | Process for the heat treatment of metal parts under protective gas |
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