GB2497123A - Support for use during heat treatment - Google Patents
Support for use during heat treatment Download PDFInfo
- Publication number
- GB2497123A GB2497123A GB1120703.2A GB201120703A GB2497123A GB 2497123 A GB2497123 A GB 2497123A GB 201120703 A GB201120703 A GB 201120703A GB 2497123 A GB2497123 A GB 2497123A
- Authority
- GB
- United Kingdom
- Prior art keywords
- text
- heat
- support platform
- elongate member
- treatment
- 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.)
- Withdrawn
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 74
- 229910052751 metal Inorganic materials 0.000 claims abstract description 30
- 239000002184 metal Substances 0.000 claims abstract description 30
- 230000007246 mechanism Effects 0.000 claims abstract description 19
- 238000000034 method Methods 0.000 claims description 18
- 230000001419 dependent effect Effects 0.000 claims 4
- 238000001816 cooling Methods 0.000 abstract description 22
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 229910045601 alloy Inorganic materials 0.000 description 5
- 239000000956 alloy Substances 0.000 description 5
- 238000010791 quenching Methods 0.000 description 3
- 230000000171 quenching effect Effects 0.000 description 3
- 238000003754 machining Methods 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 229910000897 Babbitt (metal) Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005236 sound signal Effects 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
- 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
- F27D3/0024—Charging; Discharging; Manipulation of charge of metallic workpieces
-
- 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
- F27D3/12—Travelling or movable supports or containers for the charge
-
- 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
- F27D5/0006—Composite supporting structures
-
- 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
- F27D5/0056—Hangers
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (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)
- Heat Treatment Of Articles (AREA)
Abstract
An apparatus for supporting one or more metal components during heat treatment comprising a support platform 20 having an elongate core member 22extending therefrom. The core member is removably attached to the support member via a locking mechanism. The core can be removed from the support platform after the required heat treatment so that any residual heat in the core does the affect the uniformity of the cooling rate of said treated component. The locking mechanism preferably comprises a plurality of pivoting locking members 30 operated via an actuator 32 and a lock plunger 34. Sensors may be provided to ensure the core is correctly positioned.
Description
Heat-treatment method and apparatus
Field of the Invention
This invention relates to a method and apparatus for heat-treatment of metal components.
Background
In order to ensure the desired strength of certain alloys, they undergo a heat treatment process which involves heating a component above its transformation temperature range and then quenching it (cooling it) to a temperature substantially below its transformation range. This process can be performed to normalise an alloy (refine grains which have been deformed through cold work) or to austenise an alloy (force a phase change to harden the alloy). Some alloys are quenched in oil (rapidly cooled) while others are quenched in air (slowly cooled).
During the heat treat of some large components for aircraft landing gear, the components are positioned on a heat-treatment apparatus comprising a lightweight platform and a heavy central core designed to withstand the load of heavy metal components. The heat-treatment apparatus, complcte with the components to be heat-treated, is lifted into a furnace, thc components arc heat-treated, and the apparatus is then lifted out of the furnace and stood to cool in air. During this cooling process the treated components are left attached to the heat-treatment apparatus.
It is important for the cooling rate of the components to be as uniform as possible throughout the cross-section of each heat-treated component, to minimise any physical distortion that may arise due to uneven contraction rates of the metal. However, due to its large thermal mass, the central core of the heat-treatment apparatus acts as a residual heat sourcc which continues to heat one side of each affixed component during cooling. This causes a differential in the cooling rate across the cross-section of the components, leading to their physical distortion.
A need therefore exists for a means to increase the uniformity of cooling rates during air cooling (quenching) of metal components in order to minimize distortion during the heat-treatment process.
Summary
In accordance with a first aspect of the present invention, there is provided an apparatus for supporting one or more metal components during heat treatment comprising: a support platform; and an elongate member extending from the support platform and removably attached to the support platform.
Accordingly, during air cooling (quenching) of heat-treated components, the elongate member of the heat-treatment apparatus can be removed from the vicinity of the cooling components. This means that any residual heat from central core does not affect the uniformity of cooling rates of the one or more metal components which may otherwise result in physical distortion during the heat-treatment process. Since physical distortion is minimized, pre heat-treated components can be made to more precise dimensions before heat-treatment, without the risk of being written off due to impcrmissible warping during the cooling process. Further, machining of the much harder post heat-treated components can be kept to a minimum, since the majority of the milling work is done before heat-treat, with only minor refinements being required post heat-treatment.
Preferably, the apparatus comprises a locking mechanism which locks the elongate member to the platform.
Advantageously, the locking mechanism comprises a plurality of engagement portions pivotally mounted at a first end of the elongate member and arranged to engage with the interior of a bore in the support platform. Preferably, the locking mechanism comprises at least three of said engagement portions.
Advantageously, the engagement portions arc biased radially inward into an unlocked position.
Alternativ&y, the engagement portions are biased radially outward into a locked position.
The apparatus may thrther comprise a lock plunger disposed within the elongate member and arranged to be movable along the longitudinal axis of the elongate member, the locking plunger being moveable into a locked position in which the lock plunger holds the plurality of engagement portions radially outward.
Preferably, the apparatus further comprises an actuator for actuating the locking mechanism.
Advantageously, the apparatus tIirther comprises a guide attached to the platform arranged to receive the elongate member therein.
Preferably, the apparatus further comprises a sensor to verif' whether or not the elongate member is attached to the support platform. Accordingly, an indication as to whether the central core and support platform are attached to one another may be communicated to an operator. In embodiments comprising a plurality of engagement portions, the sensor may determine the position of the engagement portions relative to the interior of the bore in the supporting platform. Where a lock plunger is incorporated into the design, the sensor may determine the position of the lock plunger relative to the plurality of engagement portions.
In accordance with a second aspect of the invention, there is provided a method for the heat-treatment of metal components comprising: positioning a metal component on a heat-treatment apparatus according to claims I to 12; transferring the heat-treatment apparatus into a heat treatment furnace; heat treating the metal element; removing the heat-treatment apparatus from the heat-treatment fbrnace; and disengaging the elongate member from the support platform.
Preferably, the method further comprises, before heat treating the metal component, disengaging the elongate member from the support platform and removing it from the heat-treatment furnace; and after heat treating the metal element, reengaging the elongate member with the support platform.
Brief Description of the Drawings
By way of example only, embodiments of the invention will now be described by reference to the accompanying drawings, in which: Figure 1 is a diagram of a conventional apparatus used to support metal components during heat treatment.
Figure 2 is a diagram of the apparatus of Figure 1, illustrating how metal components are positioned on the apparatus.
Figure 3a is a diagram of a heat-treatment apparatus according to an embodiment of the present invention, including a support platform and a removable central portion locked and engaged with the supporting platform.
Figure 3b is a diagram of a heat-treatment apparatus of Figure 3a, with the locking mechanism of the central portion disengaged fromthe supporting platform.
Figure 3c is a diagram of a heat-treatment apparatus of Figure 3b, illustrating how the central portion can be removed from the supporting platform. tion
Referring to Figure 1, a diagram of a known heat-treatment apparatus 1 is shown. The heat-treatment apparatus I typically comprises a support platform 10, upon which is welded a heavy gauge central core 12. The central core 12 includes a Lifting ring 14 to allow the heat-treatment apparatus 1 to be lifted in and out of a heat-treatment furnace and fastening members 16 which protrude from central core 12 and to which the metal components may be fastened to prevent any undue movement during placement in and removal from the heat-treatment fuimace. Referring additionally to Figure 2, metal components such as aircraft landing gear components ISa and 18b may be positioned on the support platform 10 and secured via fastening members 16 to the central core.
The support platform 10 comprises a load-bearing metal frame with a mesh plate welded thereon. To minimise the thermal mass of the support platform 10, a lightweight design is employed. However, the central core must be strong enough to withstand the load of the support platform and multiple components positioned thereon (typically 3 to 4 tonnes), and the stresses associated with repeated annealing over its lifetime. Accordingly, the central core comprises a heavy gauge pipe preferably made of steel, which is approximately an order of magnitude heavier than the support platform 10. As will be evident to a person skilled in the art, due to its thickness, the central core has a very large thermal mass capable of holding residual heat for extended periods of time.
Figures 3a, 3b and 3c show a heat-treatment apparatus 2 in accordance with an embodiment of the present invention. Like the known heat-treatment apparatus 1 shown in figures 1 and 2, the heat-treatment apparatus 2 shown in Figures 3a, 3b and 3c includes a lightweight support platform 20 and a central core 22. However, in this embodiment, the central core 22 is detachable from the support platform 20. Accordingly, during air cooling of heat-treated components, the thermally massive central core 22 of the heat-treatment apparatus can be removed from the vicinity of the cooling components. This means that any residual heat from central core 22 does not affect the uniformity of cooling rates of each component which would otherwise result in physical distortion during the heat-treatment process. Since physical distortion is minimized, pre heat-treated components can be made to more precise dimensions before heat-treatment, without the risk of being written off due to impermissiblc warping during the cooling process. Further, machining of the much harder post hcat-treated components can be kept to a minimum, since the majority of the milLing work is done before heat-treat, with only minor refinements being required post heat-treatment.
Returning to Figure 3a, support platform 20 preferably consists of a bad-bearing frame upon which is welded a mesh plate similar in construction to that of the known support platform 10. The support platform 20 fhrther comprises a central bore. The lower portion of the bore is recessed with respect to the upper edge, creating a lip 24 and recess 26 with which the central core 22 can engage.
The central core 22 preferably comprises a hollow heavy gauge metal pipe able to withstand loading from one or more components positioned on the support platform. A lifting ring 28 is incorporated at the top end of thc central core 22 to enable the heat- treatment apparatus to be lifted in and out of a furnace and transported around a heat-treatment facility using a crane or other lifting apparatus.
In the preferred embodiment, a locking mechanism is incorporated into the apparatus comprising a p'urality of locking elements 30 pivotally mounted about the base of the central core 22, each locking element being arranged to engage with the recess 26 in the support platform 20. The locking elements 30 are preferably biased into an unlocked position with respect to the recess 26 allowing default disengagement of the central core 22 from the support platform 20, as illustrated in Figure 3c.
The locking mechanism preferably further comprises an actuator 32 and a lock plunger 34.
The actuator 32 is preferably a hydraulic actuator comprising a case 36 and rod 38, the rod being constrained and arranged to slide along the longitudinal axis of the case 36.
Alternatively, the actuator may be a mechanical or electrical actuator or any other actuator known in the art.
In an unlocked configuration, as shown in Figure 3c, the lock plunger 34 is retracted into the central core 22 by the actuator 32. Since the locking elements 30 are biased into an unlocked position, the central core 22 can be freely inserted and withdrawn from the central bore of the support platform 20. When the central core 22 is then lowered into an engaging position in relation to the support platform 20 (Figure 3b), the actuator 32 extends lock plunger 34 into the locked position, pivoting the locking elements 30, which engage with the recess 26 underneath the lip 24 of the support platform 20 (Figure 3a).
The heat-treatment apparatus can then be Lifted and transported complete with support platform 20 and any components positioned thereon.
Preferably, one or more sensors may be incorporated into the heat-treatment apparatus to verit if the central core 22 is attached to the support platform 20. In one embodiment one or more sensors are arranged to determine the position of the locking elements in relation to the recess 26 or lip 24 of the support platform. The sensors may be incorporated into the lip or recess of the support platform. Preferably however, sensors are integrated into one or more of the locking elements. Accordingly, an indication of the successful engagement of each locking element may be obtained and would allow for straightforward connection of each sensor to an indicator outside of the fumace via the central core 22.
Additionally or alternatively, one or more sensors may be arranged to determine the position of the lock plunger 34 relative to the central core 22 or the locking elements 30. A sensor could be incorporated into the interior of the central core 22, sensitive to the presence of the lock plunger. Alternatively, the sensor could be integrated into the actuator in order to confirm that the plunger has been actuated into a locked position. A sensor may also be located on the lock plunger itself measuring, for example, its position relative to the locking elements 30. In such embodiments, the sensors may incorporate a simple microswitch or proximity sensor. In practice, any appropriate sensor means known in the art could be used.
An indication as to whether the central core 22 and support platform 20 are attached to one another may then be communicated to an operator by way of a light indication or sound signal, or be communicated to a central display or any other appropriate communication means known in the art.
Preferably, the heat-treatment apparatus further comprises a support guide 40 made from a lightweight thin gauge material arranged to provide some guidance for the central core 22 during insertion and withdrawal from the support platform as well as providing locations at which to attach components to be heat treated, to prevent movement during placement and removal from the heat-treatment fttrnace.
During heat-treatment, components to be heat-treated are positioned on the support platform, and preferably fastened to the support guide 40. The heat-treatment apparatus 2 may then be lifted by a crane or other lifting apparatus and lowered into a heat treatment furnace. At this point the central core 22 may be disengaged from the support platform 20 by controlling the actuator 32 to retract the lock plunger 34, thus allowing the disengagement of the locking elements 30 from the support platform. The central core 22 may then removed while the support platform 20 and components remain in the furnace.
Alternatively, the central core 22 can remain attached to the support platform 20 and in the frirnace during heat-treatment. However, preferably the central core 22 is removed so that it is not subject to high temperatures in the ffirnace which may damage or wear components of the locking mechanism or other features of the central core 22.
Once heating in the furnace has been completed, the heat-treated components need to be removed from the furnace for air cooling. If previously removed, the central core 22 is lifted and lowered into engagement with the support platform 20. Tn this instance, due to the expansion of the hot metal comprising the support platform 20, the bore with which the central core 22 engages will have a reduced radius. The support platform 20 and the central core 22 are manufactured with a tolerance to account for the expansion of the bore.
This tolerance also allows for a degree of error in alignment of the central portion 22 with the bore of the support platform 20 during reengagement. Once the central core 22 has been lowered into position with respect to the support platform 20, the actuator 32 extends the locking plunger 34 which pivots the locking elements 30 into engagement with the recess 26 underneath the lip 26.
The heat-treatment apparatus can then be removed from the ffirnaee and placed in a cooling bay or other area for air cooling. Once the apparatus has been placed in the cooling area, the central core 22 can be removed, or left in engagement with the support platform 20. If the central core 22 was not removed during the heating stage however, the core is preferably removed using the method described above in order prevent residual heat from the central core 22 affecting the cooling rate of the heat-treated components.
An advantage of the apparatus and method described herein is that there need not be one central core 22 for every single support platform 20. Where several heat-treatment apparatus exist in one heat-treatment facility, a single central core 22 can be used to transport multiple support platforms 20 to and from furnaces and cooling areas. Further, the central core 22 need not be disengaged from the crane or lifting apparatus and could alternatively form part of the lifting means, being used only to transport the support platform from one place to another.
It will be appreciated that other mechanisms could be employed to allow a central core of a heat-treatment apparatus to be disassociated from a platform and the present invention is not limited to the described embodiments.
Although in embodiments described herein anding gear elements are primarily mentioned as the components to be heat-treated, it will be evident to a person skilled in the art that the heat-treatment apparatus of the present invention could used for the heat-treatment of any suitable metal component.
Claims (14)
- <claim-text>What is claimed is: 1. An apparatus for supporting one or more metal components during heat treatment comprising: a support platform; and an elongate member extending from the support platform and removably attached to thc support platform.</claim-text> <claim-text>2. The apparatus as claimed in claim I, wherein the apparatus comprises a locking mechanism which locks the elongate member to the platform.</claim-text> <claim-text>3. The apparatus as claimed in claim 2. wherein the locking mechanism comprises a plurality of engagement portions pivotally mounted at a first end of the elongate member and arranged to engage with the interior of a bore in the support platform.</claim-text> <claim-text>4. The apparatus as claimed in claim 3, wherein the locking mechanism comprises at least 3 of said engagement portions.</claim-text> <claim-text>5. The apparatus as claimed in claim 3 or 4, wherein the engagement portions are biased radially inward into an unlocked position.</claim-text> <claim-text>6. The apparatus of claim 5 further comprising a lock plunger disposed within the ebngate member and arranged to be movable along the longitudinal axis of the elongate member, the locking plunger being moveable into a locked position in which the lock plunger holds the plurality of engagement portions radially outward.</claim-text> <claim-text>7. The apparatus as claimed in claim 3 or 4, wherein the engagement portions are biased radially outward into a locked position.</claim-text> <claim-text>8. The apparatus as claimed in any of claims 2 to 7 further comprising an actuator for actuating the locking mechanism.</claim-text> <claim-text>9. The apparatus as claimed in any preceding claim, further comprising a guide attached to the platform arranged to receive the elongate member therein.</claim-text> <claim-text>10. The apparatus as claimed in claims 3 to 9, further comprising a sensor to verify if the elongate member is attached to the support platform.</claim-text> <claim-text>11. The apparatus as claimed in claim 10 when dependent on claims 3 to 9 wherein the sensor determines the position of the plurality of engagement portions relative to interior of the bore in the support platform..</claim-text> <claim-text>12. The apparatus of claim 10 when dependent on claims 3 to 9 wherein the sensor determines the position of the lock plunger relative to the plurality of engagement portions.</claim-text> <claim-text>13. A method for the heat-treatment of metal components comprising: positioning a metal component on a heat-treatment apparatus according to any preceding claim; transferring the heat-treatment apparatus into a heat treatment furnace; heat-treating the metal element; removing the heat-treatment apparatus from the heat-treatment fhrnace; disengaging the elongate member from the support platform.</claim-text> <claim-text>14. The method as claimed in claim 13 further comprising: before heat treating the metal component, disengaging the elongate member from the support platform and removing it from the heat-treatment fliniace; afier heat treating the metal element, reengaging the elongate member with the support platform.What is claimed is: 1. An apparatus for supporting one or more metal components during heat treatment comprising: a support platform; an elongate member extending from the support platform and removably attached to the support platform wherein the elongate member has a greater thermal mass than the support platform.
- 2. The apparatus as claimed in claim 1, wherein the apparatus comprises a locking mechanism which locks the elongate member to the platform.
- 3. The apparatus as claimed in claim 2, wherein the locking mechanism comprises a Y) plurality of engagement portions pivotally mounted at a first end of the elongate member r and arranged to engage with the interior of a bore in the support platform. c\J0
- 4. The apparatus as claimed in claim 3, wherein the locking mechanism comprises at I.!) least 3 of said engagement portions.
- 5. The apparatus as claimed in claim 3 or 4, wherein the engagement portions arc biased radially inward into an unlocked position.
- 6. The apparatus of claim 5 further comprising a lock plunger disposed within the elongate member and arranged to be movable along the longitudinal axis of the elongate member, the locking plunger being moveablc into a locked position in which the lock plunger holds the plurality of engagement portions radially outward.
- 7. The apparatus as claimed in claim 3 or 4, wherein the engagement portions are biased radially outward into a locked position.
- 8. The apparatus as claimed in any of claims 2 to 7 further comprising an actuator for actuating the locking mechanism.
- 9. The apparatus as claimed in any preceding claim, further comprising a guide attached to the platform arranged to receive the elongate member therein.
- 10. The apparatus as claimed in claims 3 to 9, further comprising a sensor to verify if the elongate member is attached to the support platform.
- 11. The apparatus as claimed in claim 10 when dependent on claims 3 to 9 wherein the sensor determines the position of thc plurality of engagement portions relative to interior of the bore in the support platform.
- 12. The apparatus as claimed in claims 10 when dependent on claims 3 to 9 wherein the sensor determines the position of the lock plunger relative to the plurality of engagement portions.r
- 13. A method for the heat-treatment of metal components comprising: (\J positioning a metal component on a heat-treatment apparatus according to 0 any preceding claim; LI) transfening the heat-treatment apparatus into a heat treatment furnace; heat-treating the metal element; rcmoving the heat-treatment apparatus from the heat-treatment furnace; disengaging the elongate member from the support platform.
- 14. The method as claimed in claim 13 further comprising: before heat treating the metal component, disengaging the elongate member from the support platform and removing it from the heat-treatment fhrnace; after heat treating the metal element, reengaging the elongate member with the support platform.</claim-text>
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1120703.2A GB2497123A (en) | 2011-12-01 | 2011-12-01 | Support for use during heat treatment |
| PCT/GB2012/052954 WO2013079951A1 (en) | 2011-12-01 | 2012-11-30 | Heat-treatment method and apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1120703.2A GB2497123A (en) | 2011-12-01 | 2011-12-01 | Support for use during heat treatment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB201120703D0 GB201120703D0 (en) | 2012-01-11 |
| GB2497123A true GB2497123A (en) | 2013-06-05 |
Family
ID=45509025
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1120703.2A Withdrawn GB2497123A (en) | 2011-12-01 | 2011-12-01 | Support for use during heat treatment |
Country Status (2)
| Country | Link |
|---|---|
| GB (1) | GB2497123A (en) |
| WO (1) | WO2013079951A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015135846A1 (en) * | 2014-03-14 | 2015-09-17 | Imerys Kiln Furniture Hungary | Plate tower |
| DE102014108514A1 (en) | 2014-06-17 | 2015-12-17 | Friedr. Lohmann GmbH Werk für Spezial- & Edelstähle | Furnace rack for charging a furnace with a heat treatment material |
| EP3578910A1 (en) * | 2018-06-07 | 2019-12-11 | CRONITE CZ s.r.o. | Device for holding a part for heat treatment for vertical furnaces |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB753001A (en) * | 1953-11-30 | 1956-07-18 | Chromium Mining & Smelting Cor | Improvements in or relating to tray structure for holding a furnace charge |
| GB874873A (en) * | 1959-02-18 | 1961-08-10 | Pacific Scientific Co | Load handling apparatus |
| DE2742844A1 (en) * | 1977-09-23 | 1979-03-29 | Band Zink Gmbh | Heat treatment jig for holding workpieces - where jig is assembled from three sections, each free to expand and contract |
| CN102251090A (en) * | 2011-05-09 | 2011-11-23 | 新兴铸管股份有限公司 | Special lifting appliance for pit type heat treatment furnace |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4815971A (en) * | 1987-11-27 | 1989-03-28 | Westinghouse Electric Corp. | Multi-tier load fixture for a top-loading furnace furnace |
| DE19654385C1 (en) * | 1996-12-24 | 1998-08-06 | Theo Fuchs | Firing trays for the dental laboratory |
| FR2793311B1 (en) * | 1999-05-05 | 2001-07-27 | Snecma | DEVICE FOR LOADING WORKPIECES TO BE HEAT TREATED |
| KR20030037238A (en) * | 2003-03-24 | 2003-05-12 | 한미에이디엠 (주) | Pull out apparatus of crucible for crucible furnace |
| BRPI0400619B1 (en) * | 2004-01-30 | 2009-05-05 | pit furnace closing system. |
-
2011
- 2011-12-01 GB GB1120703.2A patent/GB2497123A/en not_active Withdrawn
-
2012
- 2012-11-30 WO PCT/GB2012/052954 patent/WO2013079951A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB753001A (en) * | 1953-11-30 | 1956-07-18 | Chromium Mining & Smelting Cor | Improvements in or relating to tray structure for holding a furnace charge |
| GB874873A (en) * | 1959-02-18 | 1961-08-10 | Pacific Scientific Co | Load handling apparatus |
| DE2742844A1 (en) * | 1977-09-23 | 1979-03-29 | Band Zink Gmbh | Heat treatment jig for holding workpieces - where jig is assembled from three sections, each free to expand and contract |
| CN102251090A (en) * | 2011-05-09 | 2011-11-23 | 新兴铸管股份有限公司 | Special lifting appliance for pit type heat treatment furnace |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015135846A1 (en) * | 2014-03-14 | 2015-09-17 | Imerys Kiln Furniture Hungary | Plate tower |
| DE102014108514A1 (en) | 2014-06-17 | 2015-12-17 | Friedr. Lohmann GmbH Werk für Spezial- & Edelstähle | Furnace rack for charging a furnace with a heat treatment material |
| DE102014108514B4 (en) | 2014-06-17 | 2018-08-30 | Friedr. Lohmann GmbH Werk für Spezial- & Edelstähle | Furnace rack for charging a furnace with a heat treatment material |
| EP3578910A1 (en) * | 2018-06-07 | 2019-12-11 | CRONITE CZ s.r.o. | Device for holding a part for heat treatment for vertical furnaces |
| FR3082294A1 (en) * | 2018-06-07 | 2019-12-13 | Cronite Cz S.R.O | DEVICE FOR HOLDING A WORKPIECE FOR A HEAT TREATMENT FOR VERTICAL OVENS |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013079951A1 (en) | 2013-06-06 |
| GB201120703D0 (en) | 2012-01-11 |
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