DE294612C - - Google Patents
Info
- Publication number
- DE294612C DE294612C DENDAT294612D DE294612DA DE294612C DE 294612 C DE294612 C DE 294612C DE NDAT294612 D DENDAT294612 D DE NDAT294612D DE 294612D A DE294612D A DE 294612DA DE 294612 C DE294612 C DE 294612C
- Authority
- DE
- Germany
- Prior art keywords
- oil
- temperature
- parts
- bath
- regulating
- 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
- 238000005496 tempering Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 229910000760 Hardened steel Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 238000003303 reheating Methods 0.000 description 1
- 239000010959 steel Substances 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
- C21D1/34—Methods of heating
- C21D1/44—Methods of heating in heat-treatment baths
- C21D1/50—Oil baths
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (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.
Beim Anlassen gehärteter Stahlteile ist besonders darauf zu achten, daß die Erwärmung der Teile möglichst gleichmäßig und in kürzester Zeit erfolgt. Die bisher in Gebrauch befindlichen Einrichtungen zum Anlassen von Stahlteilen entsprechen diesen Bedingungen nur unvollkommen. In vielen Fällen benutzt man zum Anlassen Ölbäder, die durch Kohle-, öl- oder Gasfeuerung auf die entsprechendeWhen tempering hardened steel parts, particular care must be taken that the heating of the parts takes place as evenly as possible and in the shortest possible time. Those previously in use Facilities for tempering steel parts only incompletely meet these conditions. Used in many cases one for tempering oil baths, which by coal, oil or gas firing on the appropriate
ίο Anlaßtemperatur gebracht werden. Nachdem das in einem Tiegel befindliche öl genügend erhitzt ist, werden die anzulassenden Teile in einem Drahtkorb oder einer sonstigen Vorrichtung in das Ölbad eingehängt und verbleiben darin so lange, bis sie die Temperatur des Ölbades angenommen haben. Da nun das öl eine sehr geringe Wärmeleitungsfähigkeit besitzt, ist es außerordentlich schwer, das Ölbad durchgehend gleichmäßig zu er-ίο the tempering temperature can be brought. After this the oil in a crucible is sufficiently heated, the parts to be tempered are in suspended in a wire basket or other device in the oil bath and remain in place in it until they have reached the temperature of the oil bath. Since now the oil has a very low thermal conductivity it is extremely difficult to keep the oil bath evenly
ao wärmen. Außerdem nimmt die Erwärmung der anzulassenden Teile lange Zeit in Anspruch, weil durch die eingeführten kälteren Teile dem öl eine große Wärmemenge entzogen wird, welche nur durch Wärmeleitung des umgebenden Öles ersetzt werden kann. Durch das nachstehend beschriebene und auf beiliegender Zeichnung dargestellte Ver-" fahren werden diese Nachteile beseitigt.ao warm. In addition, the heating of the parts to be tempered takes a long time, because a large amount of heat was withdrawn from the oil due to the colder parts introduced which can only be replaced by conduction of the surrounding oil. Through the below described and The method shown in the accompanying drawing eliminates these disadvantages.
Die anzulassenden Teile werden genau wie früher mittels Drahtkorbes oder sonstiger Vorrichtungen in einen möglichst isolierten Behälter b eingehängt, in den das in einem besonderen Apparat e auf Anlaßtemperatur erwärmte öl von irgendeiner Seite her unter Druck eingeführt wird. Das warme Öl durchströmt mit entsprechender Geschwindigkeit den Behälter und gibt seine Wärme an die anzulassenden Teile ab. Durch das beständig nachgedrückte warme Öl wird das sich nur um wenige Grade abkühlende öl stetig verdrängt und durch eine Absaugevorrichtung f in den Ölerhitzer zwecks Wiedererwärmung auf die Anlaßtemperatur zurückgeführt.The parts to be tempered are hung, just as before, by means of wire cages or other devices in a container b , which is as insulated as possible, into which the oil, heated to tempering temperature in a special apparatus e , is introduced from any side under pressure. The warm oil flows through the container at a corresponding speed and gives off its heat to the parts to be cured. The oil, which is only cooled by a few degrees, is constantly displaced by the constantly pushed in warm oil and returned to the starting temperature by a suction device f in the oil heater for the purpose of reheating.
Durch Regelung der Strömungsgeschwindigkeit und der Temperatur im Erhitzer ist die Möglichkeit gegeben, im Flüssigkeitsbade jede gewünschte Temperatur zu erzielen und während der Arbeitsdauer zu erhalten.By regulating the flow rate and the temperature in the heater, the Given the possibility of achieving any desired temperature in the liquid bath and during the duration of the work.
Claims (2)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE294612C true DE294612C (en) |
Family
ID=549159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT294612D Active DE294612C (en) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE294612C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639138A (en) * | 1947-10-28 | 1953-05-19 | Doris B Dow | Heat-treating apparatus |
-
0
- DE DENDAT294612D patent/DE294612C/de active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2639138A (en) * | 1947-10-28 | 1953-05-19 | Doris B Dow | Heat-treating apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0571426A1 (en) | Process for cleaning workpieces contaminated with organic matter. | |
| DE294612C (en) | ||
| AT84035B (en) | Method and device for tempering hardened metal objects. | |
| DE102009038077B4 (en) | Device for preheating and partial degassing of fresh water in a feed water reservoir for steam generators | |
| DE908739C (en) | Cooling device for intermittent electrical ovens and methods of cooling | |
| DE396946C (en) | Method and device for hardening objects | |
| DE63764C (en) | Method and apparatus for sterilizing water | |
| DE178774C (en) | ||
| DE63512C (en) | Bathtub with douche facility | |
| DE542845C (en) | Method and device for intermediate heating of liquids during distillation | |
| DE412479C (en) | Device for regulating the temperature of overheated steam | |
| DE2507062C2 (en) | Device for warming up pulp waste liquors | |
| DE102005058812A1 (en) | Device for heating at least one continuous casting rod | |
| DE333569C (en) | Process for decarbonising liquids for industrial purposes, in particular industrial water | |
| DE955493C (en) | Device for the continuous concentration of caustic solutions | |
| DE578784C (en) | Process and device for distillation or pressurized heat splitting of hydrocarbon oils | |
| DE444919C (en) | Device for heating oils and hydrocarbons by means of electricity | |
| DE1293521B (en) | Process for the temperature control of phosphating baths using plate heat exchangers | |
| DE526529C (en) | Process for pumping gases or steam in a closed circuit | |
| DE92803C (en) | ||
| DE549552C (en) | Process for the decomposition of heavy hydrocarbon oils under pressure | |
| DE1471462C (en) | Process for the steam treatment of moldings made of siliceous substances and binders intended for construction | |
| DE550480C (en) | Method and device for splitting hydrocarbon oils and tars | |
| DE147429C (en) | ||
| DE588666C (en) | Process for the decomposition of heavy hydrocarbon oils under pressure |