EP0805218B1 - Abtropfstation und ein Abtropfstation enthaltende Wärmebehandlungsvorrichtung - Google Patents

Abtropfstation und ein Abtropfstation enthaltende Wärmebehandlungsvorrichtung Download PDF

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Publication number
EP0805218B1
EP0805218B1 EP96107005A EP96107005A EP0805218B1 EP 0805218 B1 EP0805218 B1 EP 0805218B1 EP 96107005 A EP96107005 A EP 96107005A EP 96107005 A EP96107005 A EP 96107005A EP 0805218 B1 EP0805218 B1 EP 0805218B1
Authority
EP
European Patent Office
Prior art keywords
enclosure
draining
station
opening
charges
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 - Lifetime
Application number
EP96107005A
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English (en)
French (fr)
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EP0805218A1 (de
Inventor
Thierry Spérisen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Patherm SA
Original Assignee
Patherm SA
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Filing date
Publication date
Application filed by Patherm SA filed Critical Patherm SA
Priority to DE69611905T priority Critical patent/DE69611905D1/de
Priority to AT96107005T priority patent/ATE199405T1/de
Priority to EP96107005A priority patent/EP0805218B1/de
Publication of EP0805218A1 publication Critical patent/EP0805218A1/de
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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
    • C21D1/62—Quenching devices
    • C21D1/63—Quenching devices for bath quenching
    • 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
    • C21D9/0062—Heat-treating apparatus with a cooling or quenching zone
    • 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
    • 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
    • C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
    • 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

Definitions

  • the invention generally relates to installations heat treatment plant and in particular a station system for draining loads to be treated such as metal parts from a bin cooling containing a liquid bath.
  • the invention also relates to an installation for heat treatment including in particular at least one oven having a downward opening and at least one cooling with an opening upwards, the oven and the tank can be brought into position superimposed by a relative movement of one with respect to the other of so that the opening of the oven can come next to opening of the container, means for transferring loads between the oven and the tank, the installation comprising besides such a drip station.
  • a heat treatment installation such as defined above and comprising at least one open oven down, usually referred to as a bell oven, and a closure cap is already known for example from document EP-A-0 296 102.
  • thermal treatment plants type of that described in document EP-A-0 296 102 and with cooling or quenching tanks open upward and containing a quench medium liquid, and it is necessary to drain the treated charge leaving the bin before transferring it elsewhere, by example to another treatment station.
  • quenching media such as oils, molten salts, are often highly polluting and avoid that they come into contact with certain elements of the installation.
  • the charges are generally high above the quenching medium using means risers and the load can then drip into the tank cooling for a desired time.
  • This draining operation has the disadvantage to mobilize the cooling tank for the duration which is roughly of the same order as magnitude as the duration of a quench, thus prohibiting any other soaking in this tank during draining. Through elsewhere it has been found that such a drainage could lead to productivity losses of around 30%.
  • the main purpose of the invention is to remedy to the disadvantages of the aforementioned prior art in providing a drip station which allows simple and economical to recover the product from draining without having to mobilize a bin of cooling and so increase so significant performance of treatment facilities thermal including them.
  • the drip station according to the invention also has to avoid environmental pollution immediate by the vapors and fumes that emanate from loads during the draining operation.
  • the invention also aims to provide a heat treatment plant of the type indicated more high, in which a drip station is integrated to allow optimal exploitation of the production of the elements that compose it.
  • the invention relates to a station system for draining loads to be treated such as metal parts from a bin cooling containing a liquid bath, characterized in what it includes an enclosure having an opening entry open down and allowing loading and unloading said enclosure with said loads on anchoring means, in that said enclosure comprises means for sealing said entry opening made lower than the charges anchored and in that said closure means include a drip liquid collector.
  • the drip station allows on the one hand to collect autonomously the medium of quenching flowing from the load which is in progress drip and secondly to confine the fumes and vapors from these charges. We thus limit importantly the risk of environmental pollution of the installation.
  • the cooling tank is therefore immediately available for quenching another charge as soon as the transfer of the previous charge soaked in the drip station has been completed.
  • the means shutter include a movable drawer according to a direction parallel to the plane of said inlet opening and thus allowing its lateral release, said drawer comprising said collector.
  • sealing means comprising a drawer allows to move the liquid collector according to a horizontal plane and thus decrease considerably risks of loss of the liquid collected during opening and closing movements of the station drip. Furthermore, this drawer structure is compact and therefore does not increase significantly disadvantageous the congestion of the drip station.
  • the invention relates to a thermal treatment installation comprising at least an oven with a downward opening and at least one pan having an opening upwards, the oven and the tray can be brought into superimposed position by a relative movement of one with respect to the other of so that the opening of the oven can come next to opening of the container, means for transferring a load between the oven and the tray, characterized in that it further includes a drip station comprising a enclosure having an entrance opening open downward and allowing loading, in particular from the cooling, and unloading of said enclosure with said load on anchoring means, said enclosure comprising means for closing off said entry opening, lower than the anchored load, and said closure means comprise a collector drip liquid.
  • Such a heat treatment installation allows avoid immobilization of the cooling tank at above which the draining of charges normally takes place in prior art installations and so optimize the use of the installation by making these bins immediately available for new quenching charges.
  • a drip station according to the invention, designated by the general reference numeral 1.
  • This station 1 is intended to drain a charge 2 formed by a piece or a set of metal pieces to treat from a cooling tank 4 having a opening upwards (figure 3) and containing a bath B.
  • the load is placed on a support plate 6 made for example in the form of a flat rigid grid dimpled.
  • the drip station 1 comprises an enclosure 8 suspended by suspension means 10 from a structure support 12.
  • the enclosure 8 has an opening inlet 14 opening down and allowing the loading and unloading enclosure 8 from the below station 1, typically from the ferry cooling 4.
  • the support plate 6 has a substantially complementary contour and dimensions slightly smaller than those of the opening inlet 14 so that the tray can pass without clutters with load 2 through opening 14. So, the support plate 6 provided with the load 2 can be introduced into the opening 14 via ME lifting means, for example integral with the cooling 4, while it is in a first position (shown in broken lines in Figure 2) in which the support plate is oriented parallel at the opening 14.
  • the support plate can pivot around its central axis X-X an angular distance ⁇ determined under the effect of a actuator (not shown) and be brought into a second position (shown in strong lines in the figure 2) in which parts 20 of the plate are located superimposed on the studs 16.
  • the means risers can lower and 20 parts can each rest on one of the studs 16.
  • These retaining studs 16 serve as means for anchoring the load 2 and thus support the support plate 6 provided with the load 2 during the draining operation. Unloading enclosure 8 is done simply by repeating the process above in reverse.
  • the enclosure 8 further comprises means shutter 22 of the inlet opening 14.
  • These means shutter 22 are arranged in a lower part from the drip station and more particularly in part of the station which is below the charge to drain.
  • These means 22 include a drawer 24 having a cavity in which the drip liquid is collection.
  • the drawer 24 is movable in one direction parallel to the plane of the entrance opening between two extreme positions, respectively a closed position (shown in strong lines in Figure 1) in which the drawer cavity is located opposite opening 14 and an open position (shown in broken lines on the figure 1) in which the drawer is released laterally and frees access to opening 14.
  • the drawer 24 slides, by means of rollers 26 integral with the drawer, along two slides parallel 28 (only one being visible in Figure 1) which extend on either side of the opening 14.
  • the slides 28 are integral with the enclosure 8 and can typically be formed from two cross-section profiles "C", the upper branch of "C” being fixed for example by welding on a lower wall of the enclosure 8 and the rollers 26 circulating on the upper face of the lower branch of "C".
  • the drawer 24 is set in motion by an actuator 30.
  • the latter can advantageously be formed by a control cylinder hydraulic, the cylinder of which is fixed to enclosure 8 and whose end of the rod is fixed to the drawer. So, the opening 14 can be released and closed without manual intervention by an operator.
  • the bottom 32 of the cavity of the drawer 24 is inclined to allow the draining liquid to flow to a lowest region of the bottom in which a orifice connected to a drain valve 34.
  • the bottom is shaped like a funnel strongly flared, but it is understood that one could consider any other form of background ensuring the same function of draining a liquid towards a point particular.
  • FIG. 4 an installation of heat treatment as shown in FIG. 3, in which the drip station 1 is not fixed by relative to its support structure but can be moved in a direction Y-Y from a first position (shown in strong lines) in which it is located above the cooling tank to a second position (shown in broken lines) in which it is released laterally and frees access to the cooling.
  • the means of suspension of the drip station are for example connected to rollers 36 running on two parallel rails 38 like this is shown schematically in the figure.
  • the station drip 1 can also be movable along another axis perpendicular to the Y-Y axis above the tank cooling.
  • the drip station 1 can be integrated into a thermal treatment installation comprising a conventional bell furnace 40 having a downward opening and a cooling tank 4.
  • the drip station 1 and the oven 40 are in upper position and the cooling tank 4 is in lower position.
  • the drip station 1 and the oven 40 are fixed one by relative to each other and the cooling tank 4 is mounted on casters 42 and therefore movable below of the line formed by the oven and the drip station.
  • the mobile drip station along an axis Y-Y shown in Figure 4 and the variant in which the drip station is mobile along two axes perpendicular find an advantageous application.
  • the drip station integrated in the installation shown in figure 5 can be used in the way next.
  • Load 2 is loaded in the oven enclosure 40 by conventional transfer means (not shown) in view of heating to a temperature of determined temper.
  • the quench tank 4 is then moved below the oven 40.
  • the oven is then opened and the ME lifting means transfer load 2 from ovens 40 to cooling bath B.
  • the tank 4 is placed under the drip station 1 so that the opening of the tank is substantially next to the drawer 24 or the inlet opening 14 of the enclosure 8.
  • the actuator 30 of the drawer 24 is then commanded to clear the entrance opening 14.
  • the charge 2 quenched which must to be drained is introduced and anchored in enclosure 8 to using ME lifting means and anchoring means 16 as already described above.
  • the bac cooling 4 is then still below opening 14 and collects part of the liquid dripping during the transfer of the load from the tank to the enclosure.
  • the actuator 30 of the drawer 24 is controlled to close inlet opening 14.
  • the drawer cavity is located then below load 2 and thus recover the quench liquid flowing from charge 2. Liquid recovered is then drained later after the completion of the draining operation by the simple opening of the valve 34.
  • the cooling tank and / or the station can be cleared to make the cooling 4 immediately available for new quenching operation.
  • the drip station may include means of evacuation of the vapors emerging from the charge towards processing means such as filters, washing columns or the like.
  • the installation which has just been described comprises a oven 40, a cooling tank 4 and a station 1 but it goes without saying that such an installation might include several of each of these.

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  • 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)
  • Drying Of Solid Materials (AREA)
  • Treatment Of Fiber Materials (AREA)

Claims (10)

  1. Abtropfstation (1) zum Abtropfenlassen von zu behandelnden Chargen (2), wie etwa Metallteile, die von einem ein Bad enthaltenden Abkühlungsgefäß (4) kommen, wobei die Station dadurch gekennzeichnet ist, daß sie einen Behälter (8) aufweist, der eine nach unten offene Einlaßöffnung (14) besitzt und das Be- und Entladen des Behälters (8) mit den Chargen (2) auf Verankerungsmitteln (16) ermöglicht, daß der Behälter (8) außerdem Verschlußmittel (22) für die Einlaßöffnung (14) aufweist, die weiter unten als die verankerten Chargen (2) angeordnet sind, und daß die Verschlußmittel (22) einen Abtropfflüssigkeitssammler (24) umfassen.
  2. Abtropfstation nach Anspruch 1, dadurch gekennzeichnet, daß die Verschlußmittel (22) einen Schieber umfassen, der in einer Richtung parallel zur Einlaßöffnung (14) beweglich ist und somit sein Öffnen in seitlicher Richtung ermöglicht.
  3. Abtropfstation nach Anspruch 2, dadurch gekennzeichnet, daß der Schieber (24) auf parallelen Gleitschienen (28) gleitet, die mit dem Behälter (8) fest verbunden sind.
  4. Abtropfstation nach Anspruch 3, dadurch gekennzeichnet, daß sie außerdem einen Betätiger (30) aufweist, der einerseits mit dem Behälter (8) und andererseits mit dem Schieber (24) verbunden ist, um den Schieber mit der Einlaßöffnung (14) in Eingriff und außer Eingriff zu bringen.
  5. Abtropfstation nach Anspruch 1, dadurch gekennzeichnet, daß der Sammler (24) ein Entleerungsventil (34) aufweist, das an seiner Unterseite angeordnet ist.
  6. Abtropfstation nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß sie Mittel aufweist, die Dämpfe, die von den Chargen freigesetzt werden, an Behandlungsmittel abführen.
  7. Wärmebehandlungsanlage, die wenigstens einen Ofen (40) mit einer nach unten gerichteten Öffnung und ein Abkühlungsgefäß (4) mit einer nach oben gerichteten Öffnung, wobei der Ofen und das Gefäß durch eine Bewegung relativ zueinander in eine übereinanderliegende Position gebracht werden können, so daß die Öffnung des Ofens (40) in eine Position gegenüber der Öffnung des Gefäßes gelangen kann, sowie Mittel zum Transportieren einer Charge (2) zwischen dem Ofen und dem Gefäß umfaßt, dadurch gekennzeichnet, daß sie außerdem eine Abtropfstation umfaßt, die einen Behälter (8) mit einer nach unten offenen Einlaßöffnung (14), die das Beladen, insbesondere vom Abkühlungsgefäß, sowie das Entladen des Behälters (8) mit der Charge auf Verankerungsmitteln (16) ermöglicht, wobei der Behälter Mittel zum Verschließen der Öffnung aufweist, die weiter unten als die verankerte Charge (2) angeordnet sind, und die Verschlußmittel einen Abtropfflüssigkeitssammler (24) umfassen.
  8. Wärmebehandlungsanlage nach Anspruch 7, dadurch gekennzeichnet, daß die Abtropfstation (1) wie der Ofen (40) über der Anlage angeordnet ist.
  9. Wärmebehandlungsanlage nach Anspruch 7 oder 8, dadurch gekennzeichnet, daß die Abtropfstation der in einem der Ansprüche 2 bis 7 definierten entspricht.
  10. Wärmebehandlungsanlage nach einem der Ansprüche 7 bis 9, dadurch gekennzeichnet, daß die Abtropfstation, die Öfen (40) und die Gefäße (4) relativ zueinander beweglich sind.
EP96107005A 1996-05-03 1996-05-03 Abtropfstation und ein Abtropfstation enthaltende Wärmebehandlungsvorrichtung Expired - Lifetime EP0805218B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69611905T DE69611905D1 (de) 1996-05-03 1996-05-03 Abtropfstation und ein Abtropfstation enthaltende Wärmebehandlungsvorrichtung
AT96107005T ATE199405T1 (de) 1996-05-03 1996-05-03 Abtropfstation und ein abtropfstation enthaltende wärmebehandlungsvorrichtung
EP96107005A EP0805218B1 (de) 1996-05-03 1996-05-03 Abtropfstation und ein Abtropfstation enthaltende Wärmebehandlungsvorrichtung

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP96107005A EP0805218B1 (de) 1996-05-03 1996-05-03 Abtropfstation und ein Abtropfstation enthaltende Wärmebehandlungsvorrichtung

Publications (2)

Publication Number Publication Date
EP0805218A1 EP0805218A1 (de) 1997-11-05
EP0805218B1 true EP0805218B1 (de) 2001-02-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP96107005A Expired - Lifetime EP0805218B1 (de) 1996-05-03 1996-05-03 Abtropfstation und ein Abtropfstation enthaltende Wärmebehandlungsvorrichtung

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EP (1) EP0805218B1 (de)
AT (1) ATE199405T1 (de)
DE (1) DE69611905D1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100532586C (zh) * 2004-06-23 2009-08-26 光洋热系统株式会社 淬火方法及使用该方法的装置
CN115044765A (zh) * 2022-06-13 2022-09-13 玉环普天单向器有限公司 变速箱单向器星轮的热处理设备

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB987338A (en) * 1963-04-03 1965-03-24 Gibbons Brothers Ltd New or improved transfer devices for articles
US4861000A (en) * 1987-06-03 1989-08-29 Pierre Beuret Installation having several elements for heat treatments
ATE155822T1 (de) * 1991-09-19 1997-08-15 Codere Sa Wärmebehandlungsanlage für aufeinanderfolgende chargen
DE69418853T2 (de) * 1994-03-12 2000-06-29 Solo Fours Industriels S.A., Bruegg B. Biel Wärmebehandlungsanlage

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Publication number Publication date
ATE199405T1 (de) 2001-03-15
EP0805218A1 (de) 1997-11-05
DE69611905D1 (de) 2001-04-05

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