EP3655178A1 - Dispositif et procédé de fabrication de lopins métalliques - Google Patents
Dispositif et procédé de fabrication de lopins métalliquesInfo
- Publication number
- EP3655178A1 EP3655178A1 EP18735344.6A EP18735344A EP3655178A1 EP 3655178 A1 EP3655178 A1 EP 3655178A1 EP 18735344 A EP18735344 A EP 18735344A EP 3655178 A1 EP3655178 A1 EP 3655178A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cavities
- slugs
- walls
- metal
- under
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/103—Distributing the molten metal, e.g. using runners, floats, distributors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0608—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars formed by caterpillars
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
- B22D11/0637—Accessories therefor
- B22D11/064—Accessories therefor for supplying molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/04—Influencing the temperature of the metal, e.g. by heating or cooling the mould
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
- B22D27/15—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using vacuum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D29/00—Removing castings from moulds, not restricted to casting processes covered by a single main group; Removing cores; Handling ingots
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
- B22D39/06—Equipment for supplying molten metal in rations having means for controlling the amount of molten metal by controlling the pressure above the molten metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D5/00—Machines or plants for pig or like casting
- B22D5/02—Machines or plants for pig or like casting with rotary casting tables
Definitions
- Embodiments of the present invention relate to the field of manufacturing metal slugs.
- metal slugs is applied to metal masses intended to be shaped, generally hot, in order to produce particular metal objects or parts, for example by injection, forging, stamping or molding. or others, and in particular in the form of pellets, pebbles or balls.
- metals or metal alloys any metals or metal alloys, whatever their compositions and their states.
- metallic glasses' refers to metallic materials which are not crystalline and also applies to metallic materials which are partially crystalline and which therefore contain a mass or volume fraction of crystals. , usually less than 50%.
- the metal or molten metal alloy that exits the extrusion orifice is naturally segmented by beading.
- the molten metal or metal alloy flows by gravity from the extrusion orifice forming a net which is segmented under the effect of a magnetic field. Then, the falling metal slugs are cooled by the ambient gas and / or during their penetration into a coolant.
- the above extrusion methods can in particular be applied to the manufacture of small metal glass slugs, generally not exceeding millimetric dimensions when cooled in gas and larger in size when cooled. in a liquid.
- a liquid When cooled in a liquid, there is a problem of pollution of the material constituting the slugs by the liquid.
- US patent 2009/0308560 discloses a molding device which comprises a plurality of circumferentially rotatably displaced molding cups and a gutter for discharging the liquid metal into the cups successively during the rotational movement of the cups along that cup. circumference. The formed parts are extracted by successive tilting down the buckets.
- FR 2 290 266 discloses a molding device which comprises an endless chain provided with plates extending outwardly. Along an upper path, the plates are close together and form molding cavities between them, which are successively filled with a liquid metal from a spout of a tilting vessel. The formed parts are discharged at a tilting end of the endless chain as the plates move apart from each other.
- a device for manufacturing metal plots which comprises a movable support having a plurality of cavities separated by cutting walls, so that the cavities move on a course; and feeding means positioned above a location on said path and capable of forming a molten metal net, flowing under the effect of gravity, so that during continuous movement of the movable support, the continuous stream of molten metal from the feed means is divided or fragmented into pieces successively formed in said cavities, under the effect of said sectioning walls.
- the feeding means comprises a crucible adapted to receive the metallic material and provided with at least one lower extrusion orifice, a means for heating the metallic material contained in the crucible and a pressure means acting on the surface of the metal contained in the crucible.
- the amount of material constituting the slugs can be controlled and the slugs can be cooled in contact with the tray.
- the movable support may comprise a rotary plate, said cavities being formed on an annular zone of this plate.
- the device may comprise evacuation means capable of evacuating cavities from the formed metal slugs.
- Said evacuation means may comprise pushers mounted on the plate and an actuating cam of these pushers.
- Said evacuation means may comprise at least one nozzle capable of generating a gas and a gas.
- Said evacuation means may comprise a deflection blade.
- the tray may comprise at least one peripheral annular washer with an upper face adapted to receive the slugs extracted cavities.
- the device may comprise means for evacuating the plots disposed on said flange.
- Said cavities may respectively have a bottom and may be delimited internally by a common annular partition projecting upwards and circumferentially by cutting walls which separate them, these partition walls being able to extend in the direction of the axis of rotation to the top from the bottoms and radially outwardly from the common annular septum, so that the cavities are open upward and radially outward, opposite the common annular septum and are of equivalent shapes.
- the device may comprise evacuation means able to evacuate cavities, radially outwardly, the metal slugs formed.
- the bottoms of the cavities may extend in the same approximately radial plane, the upper edges of the partition walls being able to extend in the same radial plane and the partition walls being able to be distributed in equal circumferential pitches.
- the bottoms of the cavities may be inclined towards the common annular partition.
- the movable support may comprise a plurality of support members connected to each other in an articulated manner, forming an endless chain having an upper strand, said support members having at least one cavity, the feeding means being above a place of the course of said upper strand.
- Said pressure means may comprise a piston.
- Said pressure means may comprise a gas under pressure.
- the device may comprise means for cooling said mobile support.
- the device can be installed in a vacuum chamber or containing a neutral gas.
- the metal may be capable of forming an at least partially amorphous metallic glass.
- a method of manufacturing metal slugs which comprises: forming a continuous stream of molten metal material through at least one lower extrusion hole of a crucible containing the metallic material and under the effect of a pressure means acting on the surface of the metal contained in the crucible; let the molten metal stream flow, under the effect of gravity, over a course on which continuous movements of cavities of a movable support, separated by cutting walls, so that the molten metal net is divided or fragmented into pieces successively formed in said cavities, under the effect of said sectioning walls.
- Figure 1 shows a partial perspective view of a device for manufacturing metal plots, in a situation
- Figure 2 shows a perspective view in section of the device of Figure 1, including an ejection means
- Figure 3 is a perspective view in section of a detail of the device of Figure 1, including another ejection means;
- FIG. 4 shows a partial perspective view of the device of Figure 1, in another situation; and
- FIG. 5 is a perspective view of another device for manufacturing metal billets.
- a device 1 for manufacturing metal plots comprises a metal mobile support 2 consisting of a rotary radial plate 3 carried by a vertical shaft 4 and extending radially to this shaft .
- the shaft 4 is connected to an electrical or hydraulic drive means (not shown) for rotating the plate 2 at a controlled rotational speed.
- a plurality of cavities 5 On an annular zone of the plate 3 is arranged a plurality of cavities 5 so that the cavities 5 move on an annular or circular path when the plate 3 rotates.
- the cavities 5 respectively have a bottom 6 and are delimited internally by a common annular partition 7 projecting upwards and circumferentially by sectioning walls 8 which separate them, these partition walls extending in the direction of the axis of rotation upwards from the bottoms 6 and radially outwards from the common annular septum 7.
- sectioning walls 8 extend in the same radial plane.
- the bottoms 6 of the cavities 5 extend approximately in a same radial plane.
- the bottoms 6 of the cavities 5 are in the form of radial gutters situated above and adjacent to a plane that is even radial.
- the bottoms 6 of the cavities 5 may be slightly inclined a few degrees towards the common annular septum 7.
- the cavities 5 are open upwards and radially outwards, opposite the common annular septum 7 and are of equivalent shapes.
- sectioning walls 8 are distributed in equal circumferential pitches, so that the cavities 5 are identical.
- the upper part of the sectioning walls 8 is thin, or even shaped and / or serrated, so as to be able to produce a cutting effect (shear) as will be described later.
- the device 1 comprises a feed means 9 placed above a point in the annular path of the cavities 5.
- the feed means 9 comprises a crucible 10 which comprises a vertical cylindrical wall 11 and a bottom radial bottom 12 provided, for example in the middle, with a through-orifice 13 which is located radially approximately in the middle of the path annular cavities 5.
- the crucible 10 can be engaged a piston 14 whose upper rod 1 5 is connected to a drive means in vertical translation (not shown).
- the crucible 10 is equipped with a heating means 16, constituted for example by induction turns 17 which surround the cylindrical portion 11.
- the device 1 operates in the following manner.
- Pieces 10 of a metal material M such as a metal, several metals or a metal alloy, are deposited in the crucible.
- the piston 14 is engaged in the crucible 10.
- the metal material is heated until this material melts, at least partially.
- the plateau 3 is continuously rotated.
- the piston 14 Under the effect of the piston 14, pressure is exerted on the upper face of the metallic material M contained in the crucible 10. In doing so, the molten metal material is extruded through the extrusion orifice 13 of the crucible 10 and flows down under the effect of gravity, in the form of a continuous net F of molten metal material.
- the piston 14 could be replaced by a gas exerting a pressure on the free surface of the metal in the crucible 10.
- the tray 3 may be provided with channels (not shown) connected by a rotating seal to a source (not shown) of a coolant.
- the L-shaped slugs formed have the same amount of metallic material.
- the device 1 also comprises extraction means 1 8 able to extract cavities 5 the metal slugs L, so lidified at least at their periphery, at an extraction location before the slugs L 'reach the point where there is formed the net F of molten metal material, from the crucible 10.
- the extraction means 1 8 comprise a plurality of radial pushers 19 which extend through radial passages 20 arranged through the portions of the common annular partition 7 corresponding to the cavities 5.
- the radial pushers 19 have shoulders 21 located on the side of the cavities 5 and are subjected to springs 22 on the inner side of the annular partition 7.
- the pushers occupy an inwardly retracted position, in which the shoulders 2 1 are engaged in recesses 23 of the annular partition 7 under the effect of the springs 22, leaving the cavities free. .
- the radial pushers 19 When they pass successively to the extraction point, the radial pushers 19 are subjected to a fixed cam 24 which acts on the inner end of the pushers located on the inside of the annular partition 7. Successively, under the effect of the cam 24, the radial pushers 1 9 move radially against the springs 22 in a movement of going outwards and back inwards. During the outward movement, the radial pushers 19 radially push out the corresponding metal pieces L and extract them from the corresponding cavities 5.
- the extraction means 18 comprise a nozzle 25 connected to a source of a gas under pressure and one end of which is situated above and in the vicinity of the annular partition 7, at the extraction location, and is oriented towards the path of the cavities 5. Under the effect of the jet of gas leaving the nozzle 25, the slugs L are successively extracted from the cavities 5, radially outwardly.
- the slugs L could be extracted under the effect of a blade placed crosswise above the cavities 5 at the extraction point.
- the slugs L extracted from the cavities 5 at the extraction point can be discharged by falling directly into a recovery vessel.
- the residence time of the slugs L on the plate 3, between the feeding place and the extraction location is sufficient for the slugs L are sufficiently cooled and sufficiently solidified from their periphery.
- the plate 3 comprises a peripheral annular collar 26 having an annular upper face 27 located at the periphery of the cavities 5, at the same level or slightly below the bottoms 6 of the cavities 5.
- the annular upper face 27 may be radial or slightly inclined inwards a few degrees.
- the device 1 further comprises means 28 for evacuating the slugs L placed on the chord 26 at an evacuation location located before the slugs L 'reach the extraction place where they are extracted from cavities 5.
- the evacuation means 28 comprise a deflection plate 29 which extends above and at a short distance from the peripheral annular radiator 26.
- the evacuation means 28 could comprise a nozzle producing a gas and a gas able to evacuate the slugs L.
- the plate 3 could comprise a plurality of radially successive peripheral annular shells, the slugs L passing from one flange to the other under the flange. effect of successive evacuation means.
- another device 1 A for manufacturing metal billets comprises a metal mobile support 2A constituted by a plurality of support elements 30 articulated with respect to one another, by the intermediate transverse axes 3 1, forming an endless chain carried by horizontally spaced wheels 32 and 33 and mounted on parallel transverse axes 32a and 33a, so that this endless chain has a strand 34 and a lower strand 35.
- One of the axes 32a and 33a is connected to an electrical or hydraulic rotation drive means so as to continuously drive the endless chain constituted by the support elements 30.
- the support elements 30 comprise blocks in each of which is formed a cavity 36 open towards the outside relative to the course of the endless chain.
- the cavities 36 move on the same circumferential path and are identical.
- the cavities 36 have a bottom 37 and are delimited by opposite side walls 38 and 39 and opposite transverse walls 40 and 41.
- the end edges of the transverse walls 41 have flanges 42 capable of coming above the end edges of the transverse walls 40.
- transverse walls 40 and 41 adj acentes of two successive support members 30 bear against each other when the support members 30 are located on the upper strand 34, the flanges 42 covering the end edges of the walls.
- Transverse walls 40. Adjacent contiguous transverse walls 40 and 41 constitute, successively, sectioning walls 36a, separating cavities 36.
- the transverse walls 40 and 41 are spaced apart to form spacing Vs.
- the transverse walls 40 and 41 may be in contact or slightly apart by forming spacing V's.
- the device 1 A comprises a supply means 43, equivalent to the extrusion feed means 9, capable of forming a continuous thread F of a molten metal material flowing downwards.
- the feeding means 43 is placed at a feed point situated above and at a distance from the upper run 34, in a position such that the continuous thread F flows over the middle part of the path of the cavities 36. .
- the device 1 A operates in the following manner.
- the metal slugs L formed take a rounded shape under the effect of surface tensions, cool and at least partially, at least partially, in contact with the plate 3 and the gas which surrounds them.
- the device 1A may be equipped with means for cooling the support elements 30.
- these cooling means may comprise one or more fixed nozzles (not shown) connected to a source (not shown) of a cooling gas, generating cooling gas jets to the support members 30, for example over part of their path.
- the metal slugs L formed are carried by the support elements 30 in translation along the upper run 34, then in rotation on the return wheel 33.
- the metal slugs L successively extract cavities 36 under the effect of gravity and fall for example into a recovery container (not shown).
- each billet L is directly a function of the flow velocity and the section of the thread F, the linear displacement velocity of the cavities 5 along the upper strand and the separation pitch of the partition walls formed by the adjacent transverse walls 40 and 41.
- the L-shaped slugs formed comprise the same amount of metallic material.
- the devices 1 and 1A can be housed inside controlled atmosphere enclosures, neutral vis-à-vis the metallic material implemented or vacuum.
- the gases that may be used for cooling the supports 2 and 2A, the gases that may be used for cooling the formed slugs L and the gases that may be used to evacuate the formed slugs L may be neutral with respect to the metallic material used. implemented.
- the devices 1 and 1 A can advantageously be used for the manufacture of metal slugs L in metallic glasses or in materials capable of forming metallic glasses, in particular based on zirconium (Zr), magnesium (Mg), iron ( Fe), copper (Cu), aluminum (Al), palladium (Pd), platinum (Pt), titanium (Ti), cobalt (Co).
- Zr zirconium
- Mg magnesium
- Fe iron
- Cu copper
- Al aluminum
- Pd platinum
- Pt platinum
- Ti titanium
- cobalt Co
- the weight of the slugs L formed may be between one gram to twenty grams.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Furnace Details (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Manufacture Of Metal Powder And Suspensions Thereof (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR1756745A FR3068900B1 (fr) | 2017-07-17 | 2017-07-17 | Dispositif et procede de fabrication de lopins metalliques |
| PCT/EP2018/068574 WO2019016015A1 (fr) | 2017-07-17 | 2018-07-09 | Dispositif et procédé de fabrication de lopins métalliques |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP3655178A1 true EP3655178A1 (fr) | 2020-05-27 |
| EP3655178B1 EP3655178B1 (fr) | 2021-05-05 |
| EP3655178B8 EP3655178B8 (fr) | 2021-06-16 |
Family
ID=60515474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18735344.6A Active EP3655178B8 (fr) | 2017-07-17 | 2018-07-09 | Dispositif et procédé de fabrication de lopins métalliques |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US11097336B2 (fr) |
| EP (1) | EP3655178B8 (fr) |
| FR (1) | FR3068900B1 (fr) |
| WO (1) | WO2019016015A1 (fr) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US650372A (en) * | 1899-04-07 | 1900-05-29 | David T Croxton | Casting apparatus. |
| US2595780A (en) * | 1949-12-23 | 1952-05-06 | Gen Electric | Method of producing germanium pellets |
| DE1239066B (de) * | 1965-03-05 | 1967-04-20 | Ullrich & Roser Ges Mit Beschr | Vorrichtung zum fortlaufenden Formen und Giessen von metallischen Werkstuecken |
| ZA734874B (en) | 1972-08-05 | 1974-06-26 | Rheinstahl Ag | Process for teeming starting material for rolling mills and installations for applying the process |
| US3993119A (en) | 1974-11-08 | 1976-11-23 | Norton Company | Progressively or continuously cycled mold for forming and discharging a fine crystalline material |
| EP0136866B1 (fr) | 1983-09-30 | 1991-12-27 | Kabushiki Kaisha Toshiba | Procédé de fabrication d'un alliage à bas point de fusion pour fermer hermétiquement une lampe fluorescente |
| US4589467A (en) * | 1984-08-01 | 1986-05-20 | Hunter Automated Machinery Corporation | Mold handling system |
| JP2540619B2 (ja) * | 1988-11-18 | 1996-10-09 | 新東工業株式会社 | 溶湯加圧送給保持炉の操業方法 |
| US7849910B2 (en) * | 2008-06-12 | 2010-12-14 | Pcc Airfoils, Inc. | Method and apparatus for casting metal articles |
| CN104582877A (zh) * | 2012-03-23 | 2015-04-29 | 苹果公司 | 无定形合金铸块的连续无模制造 |
-
2017
- 2017-07-17 FR FR1756745A patent/FR3068900B1/fr not_active Expired - Fee Related
-
2018
- 2018-07-09 EP EP18735344.6A patent/EP3655178B8/fr active Active
- 2018-07-09 WO PCT/EP2018/068574 patent/WO2019016015A1/fr not_active Ceased
- 2018-07-09 US US16/631,650 patent/US11097336B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP3655178B8 (fr) | 2021-06-16 |
| US20200238369A1 (en) | 2020-07-30 |
| EP3655178B1 (fr) | 2021-05-05 |
| WO2019016015A1 (fr) | 2019-01-24 |
| US11097336B2 (en) | 2021-08-24 |
| FR3068900A1 (fr) | 2019-01-18 |
| FR3068900B1 (fr) | 2021-12-03 |
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