EP0108047A1 - Pusher-type oven - Google Patents
Pusher-type oven Download PDFInfo
- Publication number
- EP0108047A1 EP0108047A1 EP83890165A EP83890165A EP0108047A1 EP 0108047 A1 EP0108047 A1 EP 0108047A1 EP 83890165 A EP83890165 A EP 83890165A EP 83890165 A EP83890165 A EP 83890165A EP 0108047 A1 EP0108047 A1 EP 0108047A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sliding
- rails
- shoes
- furnace
- sliding plates
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 4
- 238000005299 abrasion Methods 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 230000001771 impaired effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006735 deficit Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000009528 severe injury Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/26—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on or in trucks, sleds, or containers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
- F27B9/00—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity
- F27B9/14—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment
- F27B9/20—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace
- F27B9/22—Furnaces through which the charge is moved mechanically, e.g. of tunnel type; Similar furnaces in which the charge moves by gravity characterised by the path of the charge during treatment; characterised by the means by which the charge is moved during treatment the charge moving in a substantially straight path tunnel furnace on rails, e.g. under the action of scrapers or pushers
-
- 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
- F27D3/022—Skids
- F27D3/024—Details of skids, e.g. riders
Definitions
- the invention relates to a push furnace with rails for sliding shoes that carry the material to be transported through the furnace, and with sliding elements that reduce the friction between the rails and the sliding shoes.
- Such pusher furnaces are generally used for the annealing treatment of bars made of aluminum or aluminum alloys, the bars, which can have a weight of several tons, usually being pushed through the furnace with the aid of a hydraulic pusher.
- sliding shoes with an essentially U-shaped cross section have at least one sliding element on their inner web side provided, which is preferably designed as a longitudinally extending slide bar and consists of an alloy with colloidal graphite as a self-lubricant.
- the arrangement or attachment of the sliding elements on the sliding shoes has various disadvantages.
- the glide shoes are loaded outside the furnace, then have to go through the furnace and finally have to leave the furnace again, they are at a shocking temperature exposed to change, which brings a considerable load on the sliding elements. If there are differences in height at the unavoidable rail joints, the sliding elements can easily break out on their end faces. There is also a risk of breakage for the sliding elements due to impact loads, for example when heavy bars weighing several tons are placed on the sliding shoes. The material waste which occurs when the sliding elements break out and the normal material abrasion / inevitably remain on the rails and naturally impair the sliding properties of the sliding elements of the subsequent sliding shoes. Finally, there is a risk that loosening the fastening means, for example the screws, for the sliding elements on the sliding shoes will result in the shoe transport being blocked inside or outside the furnace, which can result in severe damage to the entire furnace by tipping over the upright bars .
- the invention is therefore based on the object of eliminating these deficiencies and creating a pusher furnace of the type described in the introduction, in which the friction between the rails and the slide shoes and also the breakaway forces at the start of the pusher process are significantly reduced without endangering the slide elements or have to accept an impairment of their sliding properties or other damage.
- the invention solves this problem in that the sliding elements are designed as sliding plates inserted in flat recesses on the top of the rails.
- the sliding elements are therefore no longer attached to the inside or underside of the web of the sliding shoes, but rather are arranged on the top of the rails. You ver therefore always remain in the same place, that is to say at a constant operating temperature, and are not subjected to shock-like temperature changes.
- the sliding plates arranged in two longitudinal rows have surface grooves that run obliquely to the longitudinal direction of the rails, the surface grooves of the sliding plates in one longitudinal row being arranged in mirror image of the surface grooves of the sliding plates forming the other longitudinal row.
- the abrasion and the like. discharged from the sliding shoes over it into the free space outside the relevant sliding plate, the mirror-image arrangement of the surface grooves causing a cancellation of frictional forces occurring transversely to the longitudinal direction of the rail.
- a particularly advantageous embodiment is achieved in that the slide plates each cover the rail joint, so that slight differences in height of the rail pieces in the joint area are compensated for.
- Heating burners 2 are installed in the ceiling of a furnace 1.
- a ceiling fan 3 and gas baffles 4 are provided for circulating the furnace gases.
- Rails 5 are mounted on supports on the bottom of the furnace 1, on which Sliding shoes 6 are displaceable, which carry the material to be treated, for example rolled bars 7. According to FIG. 2, the rails 5 have flat surfaces / recesses 8 in which sliding elements in the form of sliding plates 9 are inserted.
- the sliding plates 9 are arranged on each rail 5 in two longitudinal rows and are within the rows and between these distances, so that free spaces are formed in which abrasion and the like. can collect without affecting the sliding properties.
- the rails 5 consist of sections 5a (Fig. 3), wherein the rail joint is bridged by sliding plates 9. As shown in FIG. 4, the sliding plates 9 forming one longitudinal row can also be offset in the longitudinal direction of the rail compared to the sliding plates 9a arranged in the other longitudinal row.
- the cross-sectional shape of the rails can be selected differently, the only important thing is that there is a flange on both long sides, which the shoes can grip under.
- the sliding plates 9 and 9a preferably consist of a sintered material in a special alloy.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
- Tunnel Furnaces (AREA)
- Vending Machines For Individual Products (AREA)
- Furnace Charging Or Discharging (AREA)
Abstract
Ein Stoßofen weist Schienen (5) für Gleitschuhe (6) auf, die das Behandlungsgut tragen, das durch den Ofen transportiert wird. Um die Reibung zwischen den Schienen (5) und den Gleitschuhen (6) zu verringern, sind Gleitelemente vorgesehen. Diese Gleitelemente sind als Gleitplatten (9) ausgebildet, die in flachen Ausnehmungen (8) an der Oberseite der Schienen (5) eingesetzt sind. Durch diese besonders ausgebildeten und angeordneten Gleitelemente werden die Reibung zwischen den Schienen und den Gleitschuhen und die Losbrechkräfte bei Beginn des Gleitvorganges wesentlich herabgesetzt.A pusher furnace has rails (5) for sliding shoes (6) which carry the material to be treated which is transported through the furnace. In order to reduce the friction between the rails (5) and the sliding shoes (6), sliding elements are provided. These sliding elements are designed as sliding plates (9), which are inserted in flat recesses (8) on the top of the rails (5). These specially designed and arranged sliding elements significantly reduce the friction between the rails and the sliding shoes and the breakaway forces at the start of the sliding process.
Description
Die Erfindung bezieht sich auf einen Stoßofen mit Schienen für Gleitschuhe, die das durch den Ofen zu transportierende Behandlungsgut tragen, und mit die Reibung zwischen den Schienen und den Gleitschuhen verringernden Gleitelementen.The invention relates to a push furnace with rails for sliding shoes that carry the material to be transported through the furnace, and with sliding elements that reduce the friction between the rails and the sliding shoes.
Derartige Stoßöfen dienen in der Regel zur Glühbehandlung von Barren aus Aluminium oder Aluminiumlegierungen, wobei die Barren,die ein Gewicht von mehreren Tonnen aufweisen können, meist mit Hilfe einer hydraulischen Stoßvorrichtung durch den Ofen geschoben werden. Um die bei Beginn des Stoßvorganges auftretenden Losbrechkräfte herabzusetzen, eine ruckfreie Verschiebung der hochbelasteten Gleitschuhe auf den Schienen zu erreichen und eine Verschleißminderung herbeizuführen, ist bereits vorgeschlagen worden, die einen im wesentlichen U-förmigen Querschnitt besitzenden Gleitschuhe auf ihrer inneren Stegseite mit mindestens einem Gleitelement zu versehen, das vorzugsweise als in Schubrichtung längsverlaufende Gleitleiste ausgebildet ist und aus einer Legierung mit Kolloidalgraphit als Selbstschmiermittel besteht. Die Anordnung bzw. Befestigung der Gleitelemente an den Gleitschuhen bringt aber verschiedene Nachteile mit sich.Such pusher furnaces are generally used for the annealing treatment of bars made of aluminum or aluminum alloys, the bars, which can have a weight of several tons, usually being pushed through the furnace with the aid of a hydraulic pusher. In order to reduce the breakaway forces that occur at the start of the impact process, to achieve a jerk-free displacement of the highly loaded sliding shoes on the rails and to reduce wear, it has already been proposed that sliding shoes with an essentially U-shaped cross section have at least one sliding element on their inner web side provided, which is preferably designed as a longitudinally extending slide bar and consists of an alloy with colloidal graphite as a self-lubricant. The arrangement or attachment of the sliding elements on the sliding shoes has various disadvantages.
Da die Gleitschuhe außerhalb des Ofens beladen werden, dann den Ofen durchlaufen und schließlich den Ofen wieder verlassen müssen, sind sie einem schockartigen Temperaturwechsel ausgesetzt, der eine beträchtliche Beanspruchung der Gleitelemente mit sich bringt. Bei Höhenunterschieden an den unvermeidbaren Schienenstößen können die Gleitelemente an ihren Stirnflächen leicht ausbrechen. Bruchgefahr für die Gleitelemente besteht auch durch Stoßbelastungen, z.B. beim Auflegen von tonnenschweren Barren auf die Gleitschuhe. Der bei einem Ausbrechen der Gleitelemente auftretende Materialabfall einerseits und der anderseits normale Materialabrieb/bleiben zwangsläufig auf den Schienen liegen und beeinträchtigen selbstverständlich die Gleiteigenschaften der Gleitelemente der nachfolgenden Gleitschuhe. Schließlich besteht die Gefahr, daß es durch Lockerung der Befestigungsmittel, z.B. der Schrauben, für die Gleitelemente an den Gleitschuhen zu einem Blockieren des Schuhtransportes innerhalb oder außerhalb des Ofens kommt, was schwere Beschädigungen des ganzen Ofens durch Umkippen der hochkant stehenden Barren zur Folge haben kann.Since the glide shoes are loaded outside the furnace, then have to go through the furnace and finally have to leave the furnace again, they are at a shocking temperature exposed to change, which brings a considerable load on the sliding elements. If there are differences in height at the unavoidable rail joints, the sliding elements can easily break out on their end faces. There is also a risk of breakage for the sliding elements due to impact loads, for example when heavy bars weighing several tons are placed on the sliding shoes. The material waste which occurs when the sliding elements break out and the normal material abrasion / inevitably remain on the rails and naturally impair the sliding properties of the sliding elements of the subsequent sliding shoes. Finally, there is a risk that loosening the fastening means, for example the screws, for the sliding elements on the sliding shoes will result in the shoe transport being blocked inside or outside the furnace, which can result in severe damage to the entire furnace by tipping over the upright bars .
Somit liegt der Erfindung die Aufgabe zugrunde, diese Mängel zu beseitigen und einen Stoßofen der eingangs geschilderten Art zu schaffen, bei dem die Reibung zwischen den Schienen und den Gleitschuhen und auch die Losbrechkräfte bei Beginn des Stoßvorganges wesentlich herabgesetzt sind, ohne eine Gefährdung der Gleitelemente oder eine Beeinträchtigung ihrer Gleiteigenschaften oder sonstige Beschädigungen in Kauf nehmen zu müssen.The invention is therefore based on the object of eliminating these deficiencies and creating a pusher furnace of the type described in the introduction, in which the friction between the rails and the slide shoes and also the breakaway forces at the start of the pusher process are significantly reduced without endangering the slide elements or have to accept an impairment of their sliding properties or other damage.
Die Erfindung löst die gestellte Aufgabe dadurch, daß die Gleitelemente als in flachen Ausnehmungen an der Oberseite der Schienen eingesetzte Gleitplatten ausgebildet sind.The invention solves this problem in that the sliding elements are designed as sliding plates inserted in flat recesses on the top of the rails.
Die Gleitelemente sind also nicht mehr an der Innen- bzw. Unterseite des Steges der Gleitschuhe befestigt, sondern an der Oberseite der Schienen angeordnet. Sie verbleiben daher immer an derselben Stelle, also auf gleichbleibender Betriebstemperatur, und werden nicht durch schockartigen Temperat ir'wechsel beansprucht. Zwischen den Gleitelementen bzw. Gleitplatten verbleibt genug Freiraum zur Aufnahme des Materialabriebs und von körnigem Materialabfall, so daß die Gleiteigenschaften nicht beeinträchtigt werden, da die Gleitschuhe auf der von Verunreinigungen freien Oberfläche der Gleitplatten gleiten und sich der Abrieb u.dgl. in dem von der Gleitfläche überragten Freiraum sammeln kann. Eine Beschädigung der Gleitplatten im Bereich der Schienenstöße ist selbstverständlich ausgeschlossen, da die Gleitplatten in den Schienen selbst angeordnet sind und nicht über diese hinweg bewegt werden müssen. Sollten sich die Befestigungsschrauben od.dgl. lockern, so wird dadurch der Schubvorgang der Gleitschuhe durch den Ofen nicht beeinträchtigt, da die bei der Bewegung der Gleitschuhe an den Gleitplatten auftretenden Reibungskräften von der Ausnehmungswand auf die Schiene übertragen und die Befestigungselemente selbst nicht beansprucht werden. Selbst zu Bruch gegangene Gleitplatten erfüllen in den für sie vorgesehenen Ausnehmungen problemlos ihre Aufgabe.The sliding elements are therefore no longer attached to the inside or underside of the web of the sliding shoes, but rather are arranged on the top of the rails. You ver therefore always remain in the same place, that is to say at a constant operating temperature, and are not subjected to shock-like temperature changes. There is enough space between the sliding elements or sliding plates to accommodate the material abrasion and granular material waste, so that the sliding properties are not impaired, since the sliding shoes slide on the surface of the sliding plates free of contaminants and the abrasion and the like. can collect in the space dominated by the sliding surface. Damage to the slide plates in the area of the rail joints is, of course, excluded, since the slide plates are arranged in the rails themselves and do not have to be moved over them. If the mounting screws or the like. loosen, the pushing process of the sliding shoes through the furnace is not impaired, since the frictional forces occurring during the movement of the sliding shoes on the sliding plates are transmitted from the recess wall to the rail and the fastening elements themselves are not stressed. Even sliding plates that have broken can easily do their job in the recesses provided for them.
In weiterer Ausbildung der Erfindung weisen die in zwei Längsreihen angeordneten Gleitplatten schräg zur Schienenlängsrichtung verlaufende Oberflächennuten auf, wobei die Oberflächennuten der Gleitplatten in der einen Längsreihe spiegeldbildlich zu den Oberflächennuten der die andere Längsreihe bildenden Gleitplatten angeordnet sind. Durch diese Oberflächennuten wird der Abrieb u.dgl. von den darübergleitenden Gleitschuhen in den Freiraum außerhalb der betreffenden Gleitplatte abgeführt, wobei die spiegelbildliche Anordnung der Oberflächennuten eine Aufhebung von quer zur Schienenlängsrichtung suftretenden Reibungskräften bewirkt.In a further embodiment of the invention, the sliding plates arranged in two longitudinal rows have surface grooves that run obliquely to the longitudinal direction of the rails, the surface grooves of the sliding plates in one longitudinal row being arranged in mirror image of the surface grooves of the sliding plates forming the other longitudinal row. Through these surface grooves, the abrasion and the like. discharged from the sliding shoes over it into the free space outside the relevant sliding plate, the mirror-image arrangement of the surface grooves causing a cancellation of frictional forces occurring transversely to the longitudinal direction of the rail.
Eine besonders vorteilhafte Ausbildung wird dadurch erreicht, daß die Gleitplatten jeweils den Schienenstoß überdecken, so daß geringe Höhenunterschiede der Schienenstücke im Stoßbereich ausgeglichen werden.A particularly advantageous embodiment is achieved in that the slide plates each cover the rail joint, so that slight differences in height of the rail pieces in the joint area are compensated for.
In der Zeichnung ist der Erfindungsgegenstand beispielsweise dargestellt, und zwar zeigen
- Fig. 1 einen erfindungsgemäßen Stoßofen schematisch im Querschnitt,
- Fig. 2 eine Schiene mit aufgesetztem Gleitschuh im größeren Maßstab schaubildlich,
- Fig. 3 einen Schienenstoß in Seitenansicht bei verändertem Maßstab,
- Fig. 4 eine Schiene mit anders angeordneten Gleitplatten in Draufsicht und
- Fig. 5 eine Schiene mit genuteten Gleitplatten, ebenfalls in Draufsicht.
- 1 shows a push oven according to the invention schematically in cross section,
- 2 shows a rail with a slide shoe attached on a larger scale,
- 3 shows a rail joint in a side view on a changed scale,
- Fig. 4 is a rail with differently arranged sliding plates in plan view and
- Fig. 5 is a rail with grooved sliding plates, also in plan view.
In der Decke eines Ofens 1 sind Heizungsbrenner 2 eingebaut. Für die Umwälzung der Ofengase sind ein Deckenventilator 3 und Gasleitbleche 4 vorgesehen. Auf dem Boden des Ofens 1 sind auf Stützen Schienen 5 gelagert, auf denen Gleitschuhe 6 verschiebbar sind, die das zu behandelnde Gut, beispielsweise Walzbarren 7, tragen. Gemäß Fig. 2 weisen flache die Schienen 5 an ihrer Oberseite/Ausnehmungen 8 auf, in denen Gleitelemente in Form von Gleitplatten 9 eingesetzt sind. Die Gleitplatten 9 sind auf jeder Schiene 5 in zwei Längsreihen angeordnet und weisen innerhalb der Reihen und zwischen diesen Abstände auf, so daß Freiräume gebildet sind, in denen sich Abrieb u.dgl. sammeln kann, ohne die Gleiteigenschaften zu beeinträchtigen.
Die Schienen 5 bestehen aus Teilstücken 5a (Fig. 3), wobei jeweils der Schienenstoß durch Gleitplatten 9 überbrückt ist. Wie Fig. 4 zeigt, können auch die die eine Längsreihe bildenden Gleitplatten 9 gegenüber den in der anderen Längsreihe angeordneten Gleitplatten 9a in Schienenlängsrichtung versetzt sein.The
Die Gleitplatten 9 gemäß Fig. 5 weisen schräg zur Schienenlängsrichtung verlaufende Oberflächennuten 10 auf, wobei die Oberflächennuten 10 der Gleitplatten 9 in der einen Längsreihe spiegelbildlich zu den Oberflächennuten 10 der die andere Längsreihe bildenden Gleitplatten 9 angeordnet sind.5 have
Die Querschnittsform der Schienen kann verschieden gewählt sein, wesentlich ist nur, daß an beiden Längsseiten je ein Flansch vorhanden ist, den die Schuhe untergreifen können. Die Gleitplatten 9 bzw. 9a bestehen bevorzugt aus einem Sinterwerkstoff in Sonderlegierung.The cross-sectional shape of the rails can be selected differently, the only important thing is that there is a flange on both long sides, which the shoes can grip under. The
Claims (3)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0363582A AT382956B (en) | 1982-10-01 | 1982-10-01 | SHOCK OVEN |
| AT3635/82 | 1982-10-01 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0108047A1 true EP0108047A1 (en) | 1984-05-09 |
| EP0108047B1 EP0108047B1 (en) | 1986-02-26 |
Family
ID=3553248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP83890165A Expired EP0108047B1 (en) | 1982-10-01 | 1983-09-21 | Pusher-type oven |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4540364A (en) |
| EP (1) | EP0108047B1 (en) |
| JP (1) | JPS59100210A (en) |
| AT (1) | AT382956B (en) |
| CA (1) | CA1170448A (en) |
| DE (1) | DE3362325D1 (en) |
| ES (1) | ES8407104A1 (en) |
| IN (1) | IN158243B (en) |
| NO (1) | NO157632C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0543101A1 (en) * | 1991-11-21 | 1993-05-26 | Gautschi Electro-Fours SA | Transporting device for a pusher type or continuous oven |
| WO2001027548A1 (en) * | 1999-10-13 | 2001-04-19 | Otto Junker Gmbh | Pusher furnace rails with plate-shaped sliding supports and sliding shoes |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0752830A (en) * | 1994-03-22 | 1995-02-28 | Iseki & Co Ltd | Fender of tractor |
| DE4420464A1 (en) * | 1994-06-13 | 1995-12-14 | Loi Ind Ofenanlagen | Furnace for heating workpieces |
| US7674109B2 (en) * | 2005-12-07 | 2010-03-09 | Ajax Tocco Magnethermic Corporation | Guidance system for pusher plate for use in pusher furnaces |
| DE102015220908A1 (en) | 2015-09-15 | 2017-03-16 | Sms Group Gmbh | Method of operating a furnace and oven |
| CN108036641A (en) * | 2017-12-25 | 2018-05-15 | 江苏三恒高技术窑具有限公司 | A kind of high temperature pusher kiln high-strength wearable push plate |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1851913A (en) * | 1931-02-24 | 1932-03-29 | Edward A Lange | Heat treating apparatus |
| DE925950C (en) * | 1952-01-10 | 1955-04-04 | Degussa | Process for the production of slideways in furnace hearths, especially in metallurgical furnaces |
| DE2656989A1 (en) * | 1976-12-16 | 1978-06-22 | Riedhammer Ludwig Fa | Tunnel kiln for sintering ferrite(s) - using conveyors consisting of heat insulating plates fitted with skids gliding along rails |
| FR2498308A1 (en) * | 1981-01-16 | 1982-07-23 | Gautschi Electro Fours Sa | PUSH FOR PUSHING OVEN |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE597928C (en) * | 1934-06-05 | Johannes Rothe | Water-cooled slide rail | |
| US1647665A (en) * | 1925-02-16 | 1927-11-01 | Jacob P Riche | Support for metal trays |
| GB931261A (en) * | 1960-10-01 | 1963-07-17 | Kloeckner Werke Ag | Improvements in or relating to slide rails for furnaces |
| DE2039507C3 (en) * | 1970-08-08 | 1973-12-06 | Huettenwerk Oberhausen Ag, 4200 Oberhausen | Attachment pieces for water-cooled supporting tubes of a pusher-type furnace |
| DE2508206A1 (en) * | 1975-02-26 | 1976-09-09 | Koppers Wistra Ofenbau Gmbh | SUPPORT RAIL FOR HEATER STOVES |
| US4125365A (en) * | 1977-04-07 | 1978-11-14 | Oliver Machinery Company | Roll through billet heater |
| JPS58730B2 (en) * | 1979-12-26 | 1983-01-07 | ロザイ工業株式会社 | pusher type heating furnace |
-
1982
- 1982-10-01 AT AT0363582A patent/AT382956B/en not_active IP Right Cessation
-
1983
- 1983-09-21 EP EP83890165A patent/EP0108047B1/en not_active Expired
- 1983-09-21 DE DE8383890165T patent/DE3362325D1/en not_active Expired
- 1983-09-23 IN IN1166/CAL/83A patent/IN158243B/en unknown
- 1983-09-23 US US06/535,156 patent/US4540364A/en not_active Expired - Lifetime
- 1983-09-26 NO NO833461A patent/NO157632C/en unknown
- 1983-09-30 ES ES526162A patent/ES8407104A1/en not_active Expired
- 1983-09-30 JP JP58180904A patent/JPS59100210A/en active Pending
- 1983-09-30 CA CA000438083A patent/CA1170448A/en not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1851913A (en) * | 1931-02-24 | 1932-03-29 | Edward A Lange | Heat treating apparatus |
| DE925950C (en) * | 1952-01-10 | 1955-04-04 | Degussa | Process for the production of slideways in furnace hearths, especially in metallurgical furnaces |
| DE2656989A1 (en) * | 1976-12-16 | 1978-06-22 | Riedhammer Ludwig Fa | Tunnel kiln for sintering ferrite(s) - using conveyors consisting of heat insulating plates fitted with skids gliding along rails |
| FR2498308A1 (en) * | 1981-01-16 | 1982-07-23 | Gautschi Electro Fours Sa | PUSH FOR PUSHING OVEN |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0543101A1 (en) * | 1991-11-21 | 1993-05-26 | Gautschi Electro-Fours SA | Transporting device for a pusher type or continuous oven |
| US5301929A (en) * | 1991-11-21 | 1994-04-12 | Gautschi Electro-Fours Sa | Conveying device for push-type or continuous-heating furnaces |
| WO2001027548A1 (en) * | 1999-10-13 | 2001-04-19 | Otto Junker Gmbh | Pusher furnace rails with plate-shaped sliding supports and sliding shoes |
Also Published As
| Publication number | Publication date |
|---|---|
| NO833461L (en) | 1984-04-02 |
| NO157632B (en) | 1988-01-11 |
| JPS59100210A (en) | 1984-06-09 |
| IN158243B (en) | 1986-10-04 |
| ES526162A0 (en) | 1984-08-16 |
| EP0108047B1 (en) | 1986-02-26 |
| US4540364A (en) | 1985-09-10 |
| ATA363582A (en) | 1986-09-15 |
| ES8407104A1 (en) | 1984-08-16 |
| DE3362325D1 (en) | 1986-04-03 |
| CA1170448A (en) | 1984-07-10 |
| AT382956B (en) | 1987-05-11 |
| NO157632C (en) | 1988-04-20 |
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