EP1602472B1 - Procédé et installation pour la préparation d'une pièce compactée à partir de poudre - Google Patents

Procédé et installation pour la préparation d'une pièce compactée à partir de poudre Download PDF

Info

Publication number
EP1602472B1
EP1602472B1 EP05008976.2A EP05008976A EP1602472B1 EP 1602472 B1 EP1602472 B1 EP 1602472B1 EP 05008976 A EP05008976 A EP 05008976A EP 1602472 B1 EP1602472 B1 EP 1602472B1
Authority
EP
European Patent Office
Prior art keywords
die
die bushing
wall
powder
bushing
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.)
Active
Application number
EP05008976.2A
Other languages
German (de)
English (en)
Other versions
EP1602472A1 (fr
Inventor
Matthias Holthausen
Martin Zingsem
Guido Schrömges
Rolf Vest
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.)
SMS Group GmbH
Original Assignee
SMS Meer GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SMS Meer GmbH filed Critical SMS Meer GmbH
Publication of EP1602472A1 publication Critical patent/EP1602472A1/fr
Application granted granted Critical
Publication of EP1602472B1 publication Critical patent/EP1602472B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
    • B30B15/02—Dies; Inserts therefor; Mounting thereof; Moulds
    • B30B15/022—Moulds for compacting material in powder, granular of pasta form
    • B30B15/024—Moulds for compacting material in powder, granular of pasta form using elastic mould parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/04—Compacting only by applying fluid pressure, e.g. by cold isostatic pressing [CIP]
    • B22F3/045—Semi-isostatic pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B11/00—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses
    • B30B11/007—Presses specially adapted for forming shaped articles from material in particulate or plastic state, e.g. briquetting presses, tabletting presses using a plurality of pressing members working in different directions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B30—PRESSES
    • B30B—PRESSES IN GENERAL
    • B30B7/00—Presses characterised by a particular arrangement of the pressing members
    • B30B7/04—Presses characterised by a particular arrangement of the pressing members wherein pressing is effected in different directions simultaneously or in turn
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/02—Compacting only
    • B22F3/03—Press-moulding apparatus therefor
    • B22F2003/033—Press-moulding apparatus therefor with multiple punches working in the same direction

Definitions

  • the invention relates to a method for producing a molded part from powder, in particular metal powder, from a doughy material containing a powder, from a flowable material containing a powder or from pre-pressed material, wherein a device is used which comprises: a die which consists of a base body and a die sleeve inserted therein, wherein the die sleeve has a preferably at least partially cylindrical contour which forms a molding surface for the molding, and at least one press die, which enter into the defined by the preferably cylindrical contour of the die sleeve opening and in can compact through the preferably cylindrical contour defined space located powder or material.
  • the invention further relates to an apparatus for producing a molded part from powder, from a doughy material containing a powder, from a flowable material containing a powder or from pre-pressed material.
  • a plurality of punches are used, which can move in an axial direction.
  • the punches can dive into an axially closed on one side mold or come in an axially open in both directions die from both axial directions. Occasionally, through mandrel rods are used, but primarily have no compression function, but a positive displacement function.
  • the punches can also dip laterally into the die to create undercuts or other geometric shapes. To demould the molded part, these radially dipping punch are withdrawn so far that the demolding is not hindered.
  • the die usually consists of a die ring (matrix base body) and a die bushing or sleeve inserted therein with the workpiece contour. Since the stamping pressure is transferred from the powder to the die wall, the die expands during the pressing process. If, after completion of the pressing operation, the pressing dies are withdrawn again, the elastic, widened die presses the powder radially together. However, since the powder has already become a molded part (compact) whose properties are comparable to those of a solid, the shaped part of the spring back resists the matrix.
  • the resulting molded part gives way plastically. If the radial pressure of the die has reached the yield point corresponding to the current stress state, the plastic deflection ends; it remains an elastic tension between the compact and die.
  • the elastic tension causes high friction forces during removal of the molding from the die. These frictional forces lead to wear of the die and damage to the molding.
  • the size of the Springback depends on the flow limit of the molded part. When using the same powder mixture, the yield point increases with the level of pressing force. This results in a dependence of the geometry of the formed molded part of the maximum applied punching force. The Springback is bigger, the more elastic the die is. Because tungsten carbide has a significantly higher modulus of elasticity than steel, die liners made of tungsten carbide are therefore used to reduce the springback.
  • a lubricant is often added to the powder. Depending on the amount added, this lubricant influences the density of the molded part more or less adversely. As a result, in turn, the strength of the finished molded part is reduced. The more lubricant added, the lower the density and strength of the molding.
  • WO 02/32655 A1 From the WO 02/32655 A1 is a powder press tool is known, which is provided that it is formed in a Auspressabites so that the Auspresskanal supporting die walls are becoming increasingly thin. By thinning walls in this area, a gradually increasing compliance of the tool is achieved, whereby the demolding is to be facilitated.
  • a pressing device for powdery and granular material in which two matrices whose end faces include the contour of the molded part, by means of guides einsch manen an angle, the surfaces of the end faces of the matrices when reaching the final contour of the molding directly close to each other.
  • segment matrices in which the contour of the molded part is formed by a number of pressing segments, there is the great disadvantage that powder can penetrate between the individual segments, which leads to a frequent disturbance of the production process.
  • a press device with a die and a plurality of dies is known, wherein a segment slider is used, which can be moved by means of appropriate feed and retraction devices also during the pressing operation for the molding after closing the mold.
  • hydrostatic compaction An alternative to the axial compaction of powdered materials as described above is hydrostatic compaction.
  • the compact is exposed to stresses that are approximately the same size in all axes. As a result, the unfavorable shear stresses are largely avoided.
  • Due to the hydrostatic compression method compacts with higher density and better material properties can be produced. The process usually takes place in a high pressure liquid container. The powder is surrounded by a flexible shell, so that an approximately equal compression takes place in all axes.
  • the invention is therefore in the light of the problems described above during pressing and demoulding of the molded part from the die, a device of the type mentioned in such a way that it is possible to facilitate the pressing and demolding and thus a total of the powder molding process to improve. Furthermore, possibilities are to be created to make the method of powder pressing so that an improvement of the process and the product are possible.
  • This object is achieved by the invention according to the method in that during the production cycle of a molding at least once a preferably radial compression or expansion with subsequent decompression or relaxation of a located in a die, preferably at least partially cylindrical die sleeve is made, wherein prior to insertion or during the insertion of at least one press ram into the die sleeve of the die, the preferably radial compression or widening of the die sleeve takes place in such a manner that a forming surface of the die sleeve assumes a desired caliber dimension.
  • This approach allows a particularly advantageous way to compensate for wear.
  • the decompression or relaxation can take place. Furthermore, during the production cycle of a molded part, a repeated, pulsating, preferably radial compression or expansion with subsequent decompression or expansion of the die sleeve can be carried out.
  • a variant of the method is based on the fact that several means arranged along the direction of movement of the press die or in more than one plane perpendicular to this direction for applying a force to at least a part of the outer or inner wall of the die sleeve are actuated or actuated, that along the direction of movement of the press die or a time-variant course of the compression or expansion of the Matrizenhülse with subsequent decompression or relaxation takes place. It can in particular be provided that the time-variant course of the compression or expansion of the die sleeve followed by decompression or relaxation along the direction of movement of the press die or waves.
  • the die sleeve can also be subjected to varying degrees of local force by actuators.
  • actuators By specifically acting differently on the die sleeve or socket punch forces of the actuators can be a bending deformation with a larger deformation path and rotating waves produce. For the compact results in a uniform deformation result.
  • the device for producing a molded part from powder, in particular metal powder, from a doughy material containing a powder, from a flowable material containing a powder or from pre-pressed material comprises: a die consisting of a base body and a die sleeve inserted therein wherein the die sleeve has a preferably at least partially cylindrical contour, which forms a molding surface for the molding, and at least one ram, which enter the opening defined by the preferably cylindrical contour of the die sleeve and located in the defined by the preferably cylindrical contour space powder or compressing material, wherein in a preferably radially outwardly or inwardly extending to the outer or inner wall of the Matrizenhülse space are arranged means with which a preferably radially inwardly or outwardly directed force at least a part de r outer or inner wall of the die sleeve can be applied.
  • the means of at least one actuating element which between a wall of the space in the base body of the die and the outer or inner wall of the die sleeve a preferably radially directed force, and preferably consist of at least one pressure transmitting member which transmits the force generated by the actuating element to the outer or inner wall of the Matrizenhülse, wherein a number of actuators and associated pressure transmitting members disposed over the circumference of the wall of the space in the main body of the die are and wherein the pressure transmitting members are formed as a plunger which taper or widen at its the outer or inner wall of the die sleeve facing the end.
  • the actuating element is preferably a hydraulic piston-cylinder system.
  • the pressure transmitting members may be tapered such that their ends facing the outer wall of the die sleeve substantially or completely surround the circumference of the outer wall of the die sleeve adjacent to one another.
  • the pressure transmission members may be provided that the pressure transmission members widen so that their inner wall of the Matrizenhülse facing ends adjacent to each other largely or completely surround the circumference of the inner wall of the Matrizenhülse. This is the preferred procedure in the production of a substantially annular shaped body.
  • a single actuator having a preferably concentric with the Matrizenhülse formed, sealed to the environment space, and an element with which a hydraulic fluid under a predetermined pressure and / or with a predetermined volume flow into the room can be entered, wherein the preferably radially inwardly or outwardly facing end surface of the space adjacent to a number of pressure transmitting members.
  • an elastic band is arranged between the radially inwardly or outwardly end face of the space and the pressure transmitting members.
  • the band is preferably formed as a steel sleeve with a small thickness.
  • the die sleeve can be made in several parts and consist of several composite segments.
  • Another embodiment of the invention provides that along the direction of movement of the press die or in more than one plane perpendicular to this direction separately controllable or actuatable means are arranged, with which the force at least on a part of the outer or inner wall of the Matrizenhülse can be applied.
  • the process according to the invention can be further optimized by supporting the process by heat, by vacuum and by special lubricants, binders and pouring agents.
  • the method can also be used especially for multilayer and multilayer molded parts.
  • the wear on the radial inner wall of the die sleeve can furthermore be considerably reduced.
  • the caliber of the matrix is set with reference to the theoretical Sinterschwundes sintering based on the finished size. In the case of deviations from the desired final dimension, post-processing after sintering may be necessary. This can be compensated with the device according to the invention by appropriate application of a radial force.
  • Fig. 1 schematically a device is shown, with which a metal powder 15 can be pressed into a molded part.
  • the device has a die 1, which consists of a hollow cylindrical base body 2, into which a die sleeve 3 is coaxially inserted. So that the die sleeve 3 is highly resistant to wear, it preferably consists of hard metal.
  • the die sleeve defines a cylindrical molding surface 4.
  • the metal powder 15 is introduced into the space formed by this molding surface.
  • a respective ram 5 are inserted into the respective openings of the die sleeve 3 and axially moved towards each other. In this case, a pressing force F P is exerted on the punches 5, so that the powder 15 is compressed.
  • the invention is not only suitable for the processing of powder. Often an already preformed compact is re-pressed in a further step, especially in the final pressing with higher Press, which is a particularly important application of the device according to the invention and the corresponding method.
  • the overall device for powder pressing is in Fig. 2 shown.
  • stamping cylinders 17 are installed, which act on the press ram 5 with the pressing force F P to press the shaped body 18.
  • pressure sensors 19 and 20 and displacement sensors 21 and 22 are present. Further, a radial displacement sensor 23 is provided, with which the radial position of the wall of the die sleeve 3 can be determined.
  • the controller 24 initiates the process of the manufacturing process.
  • FIGS. 4a and 4b out A first embodiment of this concept is based on FIGS. 4a and 4b out.
  • the means 8 for generating the radially directed force F R of the space 7 itself which is designed as a sealed or sealed space for receiving hydraulic fluid.
  • the hydraulic fluid in the space 7 and 8 is passed (in the present case, there are two subspaces, in the axial direction of the die 1 are arranged offset), where it causes an expansion of the space and thus a radial compression of the die sleeve 3.
  • the reference numeral 9 also designates the hydraulic fluid or the line and the elements for influencing the hydraulic fluid with respect to pressure and / or volumetric flow.
  • the radial compression of the die sleeve 3 can be adjusted in a targeted and metered.
  • This embodiment is very simple in construction but requires high pressures p to operate efficiently.
  • the die sleeve 3 should be designed as thin as possible here. It is also important that the extent of the space 7 in the axial direction is sufficiently large.
  • FIGS. 5a and 5b Another type is in the FIGS. 5a and 5b to see.
  • an actuating element 10 in the form of a piston-cylinder system is provided for acting on the die sleeve 3 with the radial force F R.
  • the piston is acted upon by an element 9 for inputting hydraulic fluid (see above) with fluid predetermined pressure p, which urges him from the wall 11 radially inwardly.
  • the force generated by the hydraulic fluid is transmitted to a pressure transmitting member 12 which transmits the force to the outer wall 6 of the die sleeve 3 and thus radially compresses them.
  • the pressure transmitting members 12 formed as a pressure stamp - taper in this case in the direction of the die sleeve 3, that their ends together completely surround the circumference of the die sleeve 3. This is achieved in an advantageous manner that it comes to a uniform radial compression of the sleeve 3.
  • FIGS. 7a and 7b A further increase in the pressure force by the actuators 10 is possible with a variant as in the FIGS. 7a and 7b is shown.
  • piston-cylinder systems are used, which work with two pressure chambers and thus can generate a significantly higher power. It is a solution in which a series of multiple piston surfaces is connected in order to increase the forces; the effective piston area is thus increased.
  • FIGS. 8a and 8b One of the filigree construction in the FIGS. 5 to 7 arrangements shown deviating execution is in the FIGS. 8a and 8b shown. It is only a single sealed annular space 13 is formed, which is supplied via an element 9 with hydraulic fluid. Adjacent to the end surface 14 of this space 13 are a number of pressure transmitting members 12, which are pressed radially inwardly upon application of hydraulic fluid to the space 13 and expansion of the space 13 thereafter to radially compress the die sleeve 3.
  • the end surface 14 is quite large, so that it may be the adjacent surfaces of the pressure transmitting members 12. Thus, the radial force is large, which is passed from the pressure transmitting members 12.
  • FIGS. 9a and 9b It is shown that by accepting bending and maintaining the peel-off surface at the top, by expanding the hydraulic space downward, a larger pressurizing area can be achieved.
  • FIGS. 10a and 10b show an embodiment with various piston-cylinder elements in the application for the production of an elongated molding.
  • FIGS 11a and 11b an alternative embodiment of the invention is to be seen in which not - as in the above solutions - a radially inwardly directed pressure is exerted on a cylindrical shaped body, but in which it is about the production of a ring-shaped compact.
  • a die 1 which identifies an outer hollow-cylindrical basic body part 2 and an inner cylindrical basic body part 2, which adjoins the die sleeve 3 on the radially outer surface.
  • a sealed space 13 adjoining an inner wall 11 is formed which, in the manner already explained, can be acted upon by hydraulic fluid via elements 9 and expanded therewith.
  • the expansion of the space 13 leads via a ring-shaped metal band to a radially outwardly directed movement of the pressure transmission members 12, which in turn press radially outwards onto the die sleeve 3.
  • the powder or a precompressed body located in the space between the die sleeve 3 and the outer, hollow-cylindrical base body part 2 is thereby pressed into an annular component.
  • FIG. 12a and 12b is a further embodiment of the invention can be seen.
  • a number of pressure-transmitting members 12 with their respective actuating elements 10 are arranged one above the other in the direction of movement of the press die 5 (ie in the axial direction of the die 1).
  • the individual actuating elements 10 can be actuated separately or in groups. This is in Fig. 12b to see that at various points hydraulic fluid can be entered, which is indicated by the reference numerals p1, p2 and p3. It can thus be achieved that the centrally arranged die sleeve 3 can be acted upon along its longitudinal axis with different compression forces.
  • Fig. 12a is shown enlarged how - caused by appropriate control of the various actuators 10 - the die sleeve 3 is deformed and with it also the powder located in its interior.
  • the actuating elements 10 can in particular be controlled such that one or more compression waves along the circumference of the die bushing 3, along the die sleeve 3 in the direction of the axis of the ram 5 or be introduced in a superposition of both movements on the die sleeve 3 in the powder.
  • the proposed procedure is suitable for producing longer compacts in the axial direction of the die 1 than has hitherto been the case.
  • the wall friction reduces the pressure on the powder with increasing length. Due to the possibility of drastically reducing the wall friction due to the radial movement of the die sleeve 3 in spite of a high axial pressure, it is now possible to drive the axial pressure much further into the compact.
  • Fig. 12a and 12b sketched arrangement of several axially staggered arranged and independently controllable systems for generating and transmitting the pressure exist.
  • a special mode of operation of this arrangement is in a hydraulic control, which is characterized by specific order of pressurization or pulsating pressurization with phase offset for the individual zones (analogous to the wiring of a three-phase motor or a three-phase linear motor).
  • the Fig. 13 shows a variant in which the die sleeve 3 is applied locally differently with the punching forces P 1 to P 6, which can achieve a uniform deformation result for the compact, with a pressure curve, as in the diagram Fig. 14 outlined.
  • the hydrostatic compaction is a particularly favorable type of compaction, since an all-round compression of the powder takes place.
  • a permanent active control allows the greatest possible influence on the process of manufacturing the molded part. But even waiving elaborate controls can be significant improvements of the process - compared with previously known methods - realize.
  • the exact parameters of the process must be defined in the individual process. The freedom of choice of parameters is limited by the available radial forces as well as the amount of allowable elastic strain of the die sleeve.
  • the ram should not be clamped during the movement. In the resting state, however, they may be pressed radially. They dodge elastically inwards. The tool gap must not be too large, because then powder can get between the ram.
  • the molded part is transversely deformed in a phase in which the axial force is low. This can lead to cracks and damage. This damage to the molded part due to the transverse deformation can be significantly reduced if the active transverse deformation takes place under high pressure.
  • the "active die” now offers the possibility of carrying out the required radial movement in a controlled manner with a mainly rigid mold.
  • An expedient for the molding expiration consists in an axial compression up to the maximum axial pressing force. Thereafter, the standard die leads due to their elasticity during load change of the ram from pressing to unloading springback from. In this case takes place at low axial stress radial deformation. There may be internal sliding in the molded part, which is the Can damage the molded part. In the controlled die, however, the control force can be applied so that the inner contour of the female sleeve is seemingly rigid. The risk of damage to the molding is thereby significantly reduced.
  • An alternative procedure is to start the pressing process in the untensioned state of the die sleeve and during the pressing process to apply only the at least necessary pressure to the die sleeve in order to narrow the die sleeve at maximum axial pressing pressure.
  • a radial pressure must also be applied in order to avoid that the relatively thin wall of the die sleeve is pushed through.
  • At the highest pressure then takes place a radial compression. This compression should be calculated to achieve the hydrostatic state. Then, the axial and the radial pressing force is synchronized shut down until the lack of tension is brought about.
  • the hydrostatic pressure can be achieved during the pressure reduction entirely or only in approximation, depends on the size of the radial deformability of the die. In any case, however, there is an improvement over the conventional manufacturing process.
  • a low-friction demolding is achieved as well as an improvement of the pressing process by controlling the multiaxial stress state.
  • On the geometry of the molded part can be actively influenced, and also a correction of the tool wear is possible. Furthermore, it is possible to influence the instantaneous tool gap or the contact force between die sleeve and ram. By repeatedly reducing the radial pressure during the pressing and demolding process, a reduction in the effects of friction can occur.
  • the molded part has a better homogeneity when multiple radial opening and closing takes place during the pressing of the molded part.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Press Drives And Press Lines (AREA)
  • Powder Metallurgy (AREA)

Claims (14)

  1. Procédé de fabrication d'une pièce moulée à partir de poudre, en particulier de poudre métallique, d'une matière pâteuse contenant une poudre, d'une matière pouvant couler contenant une poudre ou d'une matière pré-compactée, sachant qu'un dispositif est employé, qui présente:
    - une matrice (1) qui est constituée d'un corps de base (2) et d'un manchon de matrice (3) inséré dans celui-ci, sachant que le manchon de matrice (3) présente de préférence au moins sur des portions un contour cylindrique qui forme une surface de moulage (4) pour la pièce moulée, et
    - au moins un poinçon de compression (5) qui peut pénétrer dans l'ouverture définie à travers le contour de préférence cylindrique du manchon de matrice (3) et peut compacter la poudre, respectivement la matière se trouvant dans l'espace défini par le contour de préférence cylindrique,
    caractérisé en ce que
    pendant le cycle de production d'une pièce moulée, il est effectué au moins une fois une compression ou un élargissement de préférence radial(e) avec une décompression ou expansion consécutive d'un manchon de matrice (3) de préférence cylindrique au moins sur des portions, se trouvant dans une matrice (1), sachant qu'avant la poussée, ou pendant la poussée d'au moins un poinçon de compression (5) dans le manchon de matrice (3) de la matrice (1), la compression ou l'élargissement de préférence radial(e) du manchon de matrice (3) a lieu de façon à ce qu'une surface de moulage (4) du manchon de matrice (3) adopte une dimension calibrée souhaitée.
  2. Procédé selon la revendication 1,
    caractérisé en ce que
    la décompression ou l'expansion a lieu avant le démoulage de la pièce moulée du manchon de matrice (3).
  3. Procédé selon la revendication 1,
    caractérisé en ce que
    pendant le cycle de production d'une pièce moulée, une compression pulsatoire ou un élargissement de préférence radial(e) avec décompression ou expansion consécutive du manchon de matrice (3) est effectué(e) à plusieurs reprises.
  4. Procédé selon la revendication 1,
    caractérisé en ce que
    plusieurs moyens (8) disposés le long du sens de déplacement du, respectivement, des poinçon(s) de compression (5) dans plus d'un plan perpendiculaire à ce sens, destinés à appliquer une force (FR) au moins sur une partie de la paroi extérieure ou intérieure (6) du manchon de matrice (3), sont ainsi commandés, respectivement, actionnés, que le long du sens de déplacement du, respectivement, des poinçon(s) de compression (5), un parcours variant temporellement de la compression ou de l'élargissement du manchon de matrice (3) avec décompression ou expansion consécutive a lieu.
  5. Procédé selon la revendication 4,
    caractérisé en ce que
    le parcours variant temporellement de la compression ou de l'élargissement du manchon de matrice (3) avec décompression ou expansion consécutive le long du sens de déplacement du, respectivement, des poinçon(s) de compression (5) est effectué de façon ondulatoire.
  6. Procédé selon la revendication 1,
    caractérisé en ce que
    le manchon de matrice (3) est alimenté localement avec une intensité différente par des éléments d'actionnement (8; 10).
  7. Dispositif pour la fabrication d'une pièce moulée à partir de poudre, en particulier de poudre métallique, d'une matière pâteuse contenant une poudre, d'une matière pouvant couler contenant une poudre ou d'une matière pré-compactée, qui présente:
    - une matrice (1) qui est constituée d'un corps de base (2) et d'un manchon de matrice (3) inséré dans celui-ci, sachant que le manchon de matrice (3) présente de préférence au moins sur des portions un contour cylindrique qui forme une surface de moulage (4) pour la pièce moulée, et
    - au moins un poinçon de compression (5) qui peut pénétrer dans l'ouverture définie à travers le contour de préférence cylindrique du manchon de matrice (3) et peut compacter la poudre, respectivement la matière se trouvant dans l'espace défini par le contour de préférence cylindrique,
    sachant que des moyens (8) sont disposés dans un espace (7) s'étendant de préférence radialement vers l'extérieur ou l'intérieur sur la paroi extérieure ou intérieure (6) du manchon de matrice (3), avec lesquels une force (FR) appliquée de préférence radialement vers l'intérieur ou l'extérieur peut être appliquée au moins sur une partie de la paroi extérieure ou intérieure (6) du manchon de matrice (3),
    caractérisé en ce que
    les moyens (8) sont constitués d'au moins un élément d'actionnement (10) qui peut produire une force (FR) dirigée de préférence radialement, entre une paroi (11) de l'espace (7) dans le corps de base (2) de la matrice (1) et la paroi extérieure ou intérieure (6) du manchon de matrice (3), ainsi que de préférence d'au moins un membre de transmission de pression (12) qui transmet la force (FR) produite par l'élément d'actionnement (10) sur la paroi extérieure ou intérieure (6) du manchon de matrice (3),
    sachant qu'un nombre d'éléments d'actionnement (10) et de membres de transmission de pression (12) correspondants sont disposés sur le pourtour de la paroi (11) de l'espace (7) dans le corps de base (2) de la matrice (1) et
    sachant que les membres de transmission de pression (12) sont formés en tant que poinçons de compression qui rétrécissent ou s'élargissent sur leur extrémité tournée vers la paroi extérieure ou intérieure (6) du manchon de matrice (3).
  8. Dispositif selon la revendication 7,
    caractérisé en ce que
    l'élément d'actionnement (10) est un système piston-cylindre hydraulique.
  9. Dispositif selon la revendication 7,
    caractérisé en ce que
    les membres de transmission de pression (12) rétrécissent de telle façon que leurs extrémités tournées vers la paroi extérieure (6) du manchon de matrice (3), adjacentes les unes aux autres, entourent dans une large mesure ou complètement le pourtour de la paroi extérieure (6) du manchon de matrice (3).
  10. Dispositif selon la revendication 7,
    caractérisé en ce que
    les membres de transmission de pression (12) s'élargissent de telle façon que leurs extrémités tournées vers la paroi intérieure (6) du manchon de matrice (3), adjacentes les unes aux autres, entourent dans une large mesure ou complètement le pourtour de la paroi intérieure (6) du manchon de matrice (3).
  11. Dispositif selon l'une des revendications 7 à 10,
    caractérisé en ce qu'
    un seul élément d'actionnement (10) est prévu, qui présente un espace (13) étanchéifié contre l'environnement et formé dé préférence de manière concentrique au manchon de matrice (3), ainsi qu'un élément (9) avec lequel un fluide hydraulique peut être introduit dans l'espace (13) à une pression (p) prédéfinie et/ou un débit volumique prédéfini sachant qu'un nombre de membres de transmission de pression (12) avoisinent la surface d'extrémité (14) dirigée de préférence radialement vers l'intérieur ou l'extérieur de l'espace (13).
  12. Dispositif selon la revendication 11,
    caractérisé en ce qu'
    une bande élastique est disposée entre la surface d'extrémité (14) dirigée de préférence radialement vers l'intérieur ou l'extérieur de l'espace (13) et les membres de transmission de pression (12).
  13. Dispositif selon l'une des revendications 7 à 12,
    caractérisé en ce que
    le manchon de matrice (3) est conçu en plusieurs parties et est constitué de plusieurs segments agencés ensemble.
  14. Dispositif selon l'une des revendications 7 à 13,
    caractérisé en ce que
    des moyens (8) pouvant être commandés ou actionnés de façon séparée sont disposés le long du sens de déplacement du, respectivement, des poinçon(s) de compression (5) dans plus d'un plan perpendiculaire à ce sens, avec lesquels une force (FR) peut être appliquée au moins sur une partie de la paroi extérieure ou intérieure (6) du manchon de matrice (3).
EP05008976.2A 2004-06-02 2005-04-23 Procédé et installation pour la préparation d'une pièce compactée à partir de poudre Active EP1602472B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102004026968 2004-06-02
DE102004026968A DE102004026968A1 (de) 2004-06-02 2004-06-02 Vorrichtung und Verfahren zum Herstellen eines Formteils

Publications (2)

Publication Number Publication Date
EP1602472A1 EP1602472A1 (fr) 2005-12-07
EP1602472B1 true EP1602472B1 (fr) 2014-03-19

Family

ID=34935657

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05008976.2A Active EP1602472B1 (fr) 2004-06-02 2005-04-23 Procédé et installation pour la préparation d'une pièce compactée à partir de poudre

Country Status (4)

Country Link
US (1) US7150851B2 (fr)
EP (1) EP1602472B1 (fr)
CA (1) CA2508528C (fr)
DE (1) DE102004026968A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007109774A2 (fr) * 2006-03-22 2007-09-27 3M Innovative Properties Company Milieu filtre
DE102006020213B4 (de) * 2006-05-02 2009-09-10 Fette Gmbh Presse zur Herstellung von Preßlingen aus Pulvermaterial
US8033805B2 (en) 2007-11-27 2011-10-11 Kennametal Inc. Method and apparatus for cross-passageway pressing to produce cutting inserts
US8062014B2 (en) * 2007-11-27 2011-11-22 Kennametal Inc. Method and apparatus using a split case die to press a part and the part produced therefrom
EP2098317A1 (fr) * 2007-12-04 2009-09-09 Osterwalder AG Procédé et dispositif de fabrication d'une pièce moulée en poudre de métal
CH710828B1 (de) * 2015-03-05 2019-06-28 Dietmar W Kramer Dr Sc Techn Eth Phd Pulverpresse sowie ein Futtergehäuse mit vorzugsweise mehreren für ein Querpressen verschiebbaren Stempeln.
CN110815926A (zh) * 2018-08-08 2020-02-21 马会峰 全自动饼式压榨机组脱圈清边机
CN109396424B (zh) * 2018-11-23 2019-10-29 南京宁阪特殊合金有限公司 球化剂压块的制备方法
CN110976856B (zh) * 2019-12-27 2021-11-09 哈尔滨工程大学 一种金属粉末成形装置
CN114799166B (zh) * 2022-05-11 2024-04-26 余姚市盛达粉末冶金有限公司 一种粉末冶金生产系统及工艺

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3134139A (en) * 1961-02-28 1964-05-26 Gen Electric High pressure apparatus
US3832100A (en) * 1973-01-05 1974-08-27 Gleason Works Tooling for receiving and supporting a quantity of powder material to be pressed into a self-supporting compact
SE451239B (sv) * 1982-11-18 1987-09-21 Cold Isostatic Press Syst Kb Kassett innefattande en pressform for semi-isostatisk kompaktering av ett pulver som er innehallet i pressformens kavitet
DE19508952C2 (de) 1995-03-13 1998-04-16 Schwaebische Huettenwerke Gmbh Preßvorrichtung zur Erzeugung eines Formteils und entsprechendes Formteil
DE19722779A1 (de) 1997-06-02 1998-12-03 Hoechst Ag Formkörper aus texturiertem Supraleitermaterial und Verfahren zu ihrer Herstellung
JP3620250B2 (ja) 1997-11-20 2005-02-16 株式会社村田製作所 セラミック積層体のプレス装置及びプレス方法
DE19830601A1 (de) 1998-07-09 2000-03-09 Friedrich Tilman Hes Formvorrichtung zur Herstellung homogener Formteile
DE19953244A1 (de) 1999-11-04 2001-05-17 Itt Mfg Enterprises Inc Presse
SE0003755L (sv) 2000-10-17 2002-04-18 Skf Ab Metod och anordning fö pulverpressning

Also Published As

Publication number Publication date
US7150851B2 (en) 2006-12-19
EP1602472A1 (fr) 2005-12-07
CA2508528A1 (fr) 2005-12-02
US20050269729A1 (en) 2005-12-08
CA2508528C (fr) 2009-07-21
DE102004026968A1 (de) 2006-01-05

Similar Documents

Publication Publication Date Title
EP1602472B1 (fr) Procédé et installation pour la préparation d'une pièce compactée à partir de poudre
EP2480358B1 (fr) Procédé de fabrication d'un élément composite
DE102009042598A1 (de) Verfahren zur Herstellung eines Grünlings
WO2016124511A1 (fr) Presse à poudre présentant une infrastructure conique
EP1602473B1 (fr) Installation pour la préparation d'une pièce compactée à partir de poudre
WO2015051947A1 (fr) Dispositif d'approche pour générer un mouvement d'approche secondaire d'un outil
EP3349926B1 (fr) Presse pour pièce frittée et son procédé
EP2180964A2 (fr) Outil et procédé pour produire un élément creux
DD244721A5 (de) Isostatische pressform zur herstellung von formlingen aus keramischer masse
EP1731246B1 (fr) Appareil pour la fabrication d'une diversité des objets moulés de poudre.
DE102017130680B4 (de) Matrize für eine Presse sowie Verfahren zur Herstellung mindestens eines Grünlings mit einer solchen Presse
EP0516222B1 (fr) Panneau adaptateur avec dispositives de formage à outil oscillant pour une presse axiale
DE3923358A1 (de) Verfahren und presse zur herstellung kaltgeformter rohrfoermiger koerper
WO1990009874A1 (fr) Procede et dispositif pour fabriquer un profile fait essentiellement de matieres ceramiques
EP1657007B1 (fr) Procédé de formage de pièces
DE102010033997A1 (de) Metall- oder Keramikpulver-Elektropresse und Steuerverfahren dafür
DE976579C (de) Presswerkzeug zum Herstellen von zu sinternden Presskoerpern aus Metallpulver
AT525599B1 (de) Verfahren zur Herstellung eines Bauteils aus einem Metallpulver und/oder Keramikpulver
DE19504458C1 (de) Vorrichtung zur Herstellung von Keramikteilen oder porösen Metallkörpern
DE1238829B (de) Vorrichtung zum Pressen von Hohlbausteinen in einer Form mittels im Querschnitt dehnbarer Kerne
EP3530446B1 (fr) Presse à poudre dotée de levier à genouillère et d'entraînement électrique
AT228026B (fr)
EP2215364B1 (fr) Matrice, rotor fritté et méthode de frittage
EP3501778A1 (fr) Procédé ainsi que dispositif de fabrication de tubes d'emballage
DE10021189A1 (de) Verfahren und Vorrichtung zur Herstellung von Bauteilen mit Verzahnungen, insbesondere innenverzahnten Hohlrädern

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA HR LV MK YU

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VEST, ROLF

Inventor name: HOLTHAUSEN, MATTHIAS

Inventor name: SCHROEGES, GUIDO

Inventor name: ZINGSEM, MARTIN

17P Request for examination filed

Effective date: 20060601

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

17Q First examination report despatched

Effective date: 20091016

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20131031

RIN1 Information on inventor provided before grant (corrected)

Inventor name: VEST, ROLF

Inventor name: ZINGSEM, MARTIN

Inventor name: SCHROEMGES, GUIDO

Inventor name: HOLTHAUSEN, MATTHIAS

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005014252

Country of ref document: DE

Owner name: SMS GROUP GMBH, DE

Free format text: FORMER OWNER: SMS MEER GMBH, 41069 MOENCHENGLADBACH, DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

REG Reference to a national code

Ref country code: AT

Ref legal event code: REF

Ref document number: 657364

Country of ref document: AT

Kind code of ref document: T

Effective date: 20140415

Ref country code: CH

Ref legal event code: NV

Representative=s name: SCHMAUDER AND PARTNER AG PATENT- UND MARKENANW, CH

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 502005014252

Country of ref document: DE

Effective date: 20140424

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

REG Reference to a national code

Ref country code: NL

Ref legal event code: VDEP

Effective date: 20140319

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20140418

Year of fee payment: 10

Ref country code: FR

Payment date: 20140422

Year of fee payment: 10

Ref country code: AT

Payment date: 20140411

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140619

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140719

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: NL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: MC

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502005014252

Country of ref document: DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140721

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

26N No opposition filed

Effective date: 20141222

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20140619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 502005014252

Country of ref document: DE

Effective date: 20141222

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140423

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140619

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 657364

Country of ref document: AT

Kind code of ref document: T

Effective date: 20150423

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005014252

Country of ref document: DE

Representative=s name: HEMMERICH & KOLLEGEN PATENTANWAELTE, DE

Ref country code: DE

Ref legal event code: R082

Ref document number: 502005014252

Country of ref document: DE

Representative=s name: HEMMERICH & KOLLEGEN, DE

Ref country code: DE

Ref legal event code: R081

Ref document number: 502005014252

Country of ref document: DE

Owner name: SMS GROUP GMBH, DE

Free format text: FORMER OWNER: SMS MEER GMBH, 41069 MOENCHENGLADBACH, DE

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150430

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150430

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20151231

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150423

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20150430

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140620

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

Effective date: 20050423

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140319

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20140423

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20140430

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20220620

Year of fee payment: 19

P01 Opt-out of the competence of the unified patent court (upc) registered

Effective date: 20230707