DE2839782C2 - Grate for heat treatment furnace - Google Patents
Grate for heat treatment furnaceInfo
- Publication number
- DE2839782C2 DE2839782C2 DE19782839782 DE2839782A DE2839782C2 DE 2839782 C2 DE2839782 C2 DE 2839782C2 DE 19782839782 DE19782839782 DE 19782839782 DE 2839782 A DE2839782 A DE 2839782A DE 2839782 C2 DE2839782 C2 DE 2839782C2
- Authority
- DE
- Germany
- Prior art keywords
- grate
- attached
- connecting pieces
- end faces
- carrier
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D3/00—Charging; Discharging; Manipulation of charge
- F27D3/02—Skids or tracks for heavy objects
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D5/00—Supports, screens, or the like for the charge within the furnace
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Furnace Charging Or Discharging (AREA)
Description
2525th
Die vorliegende Erfindung betrifft einen Rost für Warmbehandlungsöfen, bestehend aus einem gitterartigen Rahmen aus Gußeisen, auf dem die zu behandelnden Werkstücke durch den Ofen gefördert werden.The present invention relates to a grate for heat treatment furnaces, consisting of a grid-like Cast iron frame on which the workpieces to be treated are conveyed through the furnace.
Derartige Roste sind bekannt. Sie bestehen im wesentlichen aus sich unter einem rechten Winkel kreuzenden, hochkantstehenden Trägern. Als Material wird Gußeisen oder ein anderes warmfestes Material verwendet. Such grids are known. They essentially consist of intersecting at a right angle, edgewise straps. Cast iron or another heat-resistant material is used as the material.
Werden solche Roste gemeinsam mit den wärmebehandelten Werkstücken in ein Abschreckbad getaucht, so kommt es bei den bekannten Konstruktionen zu Rissen an den Verbindungsstellen der Träger. Diese Rißbildung ist auf die höhere Wännekapatzität des Rostes an diesen Stellen sowie auf die an diesen Stellen beim Gießen der Roste entstehenden Lunker zurückzuführen.If such grates are immersed in a quenching bath together with the heat-treated workpieces, so it comes with the known constructions to cracks at the connection points of the carrier. This cracking is due to the higher Wännekapatzität the grate at these points as well as the at these points when pouring The voids caused by the grates can be traced back.
Der vorliegenden Erfindung liegt die Aufgabe zugrunde, die bekannten Roste dahingehend zu verbessern, daß eine Lunkerbildung bei der Herstellung der Roste selbst sowie eine Rißbildung beim Eintauchen in ein Abschreckbad weitestgehend vermieden werden kann.The present invention is based on the object of improving the known grates in such a way that that the formation of cavities in the production of the grates themselves and cracking when immersed in a quenching bath can be largely avoided.
Diese Aufgabe wird dadurch gelöst, daß der Rost aus einer Anzahl hochkantstehender Träger besteht, die durch flach liegende Verbindungsstücke miteinander verbunden sind.This object is achieved in that the grate consists of a number of upright supports which are connected to each other by connecting pieces lying flat.
Vorzugsweise stehen die Träger zueinander parallel und sind die Verbindungsstücke auf oder seitlich neben den Stirnseiten der Träger befestigt. Diese Konstruktion vermeidet die Materialanhäufungen an den Verbindungsstellen zwischen Trägern und Verbindungsstükken, so daß sowohl bei der Herstellung der Roste selbst als auch bei Erwärmen im Ofen sowie beim Abschrekken im Abschreckbad alle Bereiche gleichmäßig schnell abkühlen bzw. sich erwärmen. Dies wird noch dadurch unterstützt, daß auch sonstiges zm Rahmen befestigte Hilfsteile, wie Aufhänger, Füße usw. . auf oder neben den Stirnseiten der Träger befestigt sind.The carriers are preferably parallel to one another and the connecting pieces are fastened on or laterally next to the end faces of the carriers. This construction avoids the accumulation of material at the connection points between the girders and the connecting pieces, so that all areas cool or heat up evenly and quickly during the production of the grids themselves and when they are heated in the furnace and when quenching in the quenching bath. This is further supported by the fact that other auxiliary parts attached to the frame, such as hangers, feet, etc. are attached on or next to the end faces of the carrier.
Anhand der Zeichnung soll die Erfindung in Form von Ausführungsbeispielen näher erläutert werden. Es zeigtThe invention is to be explained in more detail in the form of exemplary embodiments with the aid of the drawing. It shows
F i g. I in perspektivischer Darstellung einen Ausschnitt ims einem Rost für einen Herdofen,F i g. I a perspective view of a section in a grate for a hearth furnace,
Hierzu 2 Blatt ZeichnungenFor this purpose 2 sheets of drawings
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782839782 DE2839782C2 (en) | 1978-09-13 | 1978-09-13 | Grate for heat treatment furnace |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19782839782 DE2839782C2 (en) | 1978-09-13 | 1978-09-13 | Grate for heat treatment furnace |
Publications (2)
Publication Number | Publication Date |
---|---|
DE2839782A1 DE2839782A1 (en) | 1980-03-27 |
DE2839782C2 true DE2839782C2 (en) | 1985-03-07 |
Family
ID=6049320
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19782839782 Expired DE2839782C2 (en) | 1978-09-13 | 1978-09-13 | Grate for heat treatment furnace |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2839782C2 (en) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE464708C (en) * | 1928-08-23 | Louis Sacklowski | Melting basket for ceramic purposes | |
GB1240204A (en) * | 1969-08-12 | 1971-07-21 | Acme Marls Ltd | Improvements relating to supports for pottery and the like articles during firing and like heat treatment |
-
1978
- 1978-09-13 DE DE19782839782 patent/DE2839782C2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2839782A1 (en) | 1980-03-27 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OD | Request for examination | ||
D2 | Grant after examination | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: RUHRGAS AG, 4300 ESSEN, DE |
|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |