Abrégé

A method of manufacturing powder from a first and a second materials for use in additive manufacturing, the manufacturing process including melting the first and second materials by an electric arc; spraying the melted materials so as to form droplets; cooling the droplets by a carrier gas so as to form solid particles; separating the solid particles from the carrier gas and collecting the solid particles so as to form the powder; and enriching the droplets and/or the particles by an active substance.

Classes IPC  ?

• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensions; Appareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p.ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation
• B22F 1/145 - Traitement chimique, p.ex. passivation ou décarburation
• B22F 1/065 - Particules sphériques

Abrégé

The present invention relates to a powder storage device comprising an enclosure (1) suitable for containing a powder (2) and an atmosphere, the device comprising at least one sensitive element (3) arranged inside the enclosure, such that at least one optical property of the sensitive element (3) depends on the atmosphere inside the enclosure, the device comprising observation means comprising at least one observation part (5), which is at least partially transparent, the observation means making it possible to observe the optical property of the sensitive element from outside of the enclosure (1).

Classes IPC  ?

• G01N 21/77 - Systèmes dans lesquels le matériau est soumis à une réaction chimique, le progrès ou le résultat de la réaction étant analysé en observant l'effet sur un réactif chimique
• G01N 21/78 - Systèmes dans lesquels le matériau est soumis à une réaction chimique, le progrès ou le résultat de la réaction étant analysé en observant l'effet sur un réactif chimique produisant un changement de couleur
• G01N 21/80 - Indication de la valeur du pH
• G01N 21/81 - Indication de l'humidité
• G01N 21/03 - Dispositions ou appareils pour faciliter la recherche optique - Détails de structure des cuvettes
• G01N 21/64 - Fluorescence; Phosphorescence
• B29C 64/255 - Enceintes pour le matériau de construction, p.ex. récipients pour poudre

Abrégé

The invention relates to a device for continuously mixing a first powder and a second powder, characterized in that the device comprises: • - a first metering device (3A) for continuously metering the first powder, and a second metering device (3B) for continuously metering the second powder, • - a mixer (4) designed to mix the first powder metered by the first metering device and the second powder metered by the second metering device so as to supply a continuous stream of powder mixed according to a determined ratio, and • - a sampling device (5) designed to sample a fraction of the stream of mixed powder.

Classes IPC  ?

• B01F 23/60 - Mélange de solides avec des solides
• B01F 23/70 - Prétraitement des matières à mélanger
• B01F 23/80 - Post-traitement du mélange
• B01F 27/50 - Mélangeurs de tuyaux, c. à d. mélangeurs dans lesquels les matières à mélanger circulent en continu dans des tuyaux, p.ex. mélangeurs à colonne
• B01F 27/724 - Mélangeurs à agitateurs tournant dans des récipients fixes; Pétrins avec des agitateurs tournant autour d'un axe horizontal ou incliné avec des hélices ou des sections d'hélices avec une seule hélice étroitement entourée d'un boîtier
• B01F 35/71 - Mécanismes d'alimentation
• B01F 35/00 - Accessoires pour mélangeurs; Opérations auxiliaires ou dispositifs auxiliaires; Parties ou détails d'application générale

Abrégé

An aspect of the invention concerns a method for manufacturing powder (5) from first and second materials (1a, 1b), intended to be used in the field of additive manufacturing, the manufacturing method comprising: - a step of melting the first and second materials (1a, 1b), by means of an electric arc (314); - a step of spraying the molten materials (1a, 1b) so as to form droplets (2); - a step of cooling the droplets (2) by means of a carrier gas (11) so as to form solid particles (3); - a step of separating the solid particles from the carrier gas (11) and of collecting the solid particles (3) so as to form the powder (5); and - a step of enriching the droplets (2) and/or the particles (3) by means of an active substance (16).

Classes IPC  ?

• B22F 1/00 - Poudres métalliques; Traitement des poudres métalliques, p.ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensions; Appareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p.ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation

Abrégé

One aspect of the invention relates to a method for manufacturing powder (5) from first and second materials (1a, 1b), said powder being intended to be used in the field of additive manufacturing, the manufacturing method comprising: - a step of melting first and second materials (1a, 1b), by means of an electric arc (314); - a step of spraying the molten materials (1a, 1b) so as to form droplets (2); - a step of cooling the droplets (2) by means of a carrier gas (11) so as to form solid particles (3); - a step of separating the solid particles from the carrier gas (11) and of collecting the solid particles (3) so as to form the powder (5); and - a step of enriching the droplets (2) and/or particles (3) by means of an active substance (16).

Classes IPC  ?

• B22F 1/00 - Poudres métalliques; Traitement des poudres métalliques, p.ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 9/08 - Fabrication des poudres métalliques ou de leurs suspensions; Appareils ou dispositifs spécialement adaptés à cet effet par des procédés physiques à partir d'un matériau liquide par coulée, p.ex. à travers de petits orifices ou dans l'eau, par atomisation ou pulvérisation

Abrégé

One aspect of the invention concerns a method (101) for purifying a powder (10) containing grains (1) and contaminants (2), comprising: - a step of preparing (120) a suspension (4) containing the powder (10) and a solvent (3); - then applying a mechanical energy (5) to the suspension (4); - a step of dispersing (130) the grains (1) and the contaminants (2) in the solvent (3); - a step of removing (140) the contaminants (2) and the solvent (3); - a step of drying (150) the grains (1) in a controlled atmosphere.

Classes IPC  ?

• B22F 1/00 - Poudres métalliques; Traitement des poudres métalliques, p.ex. en vue de faciliter leur mise en œuvre ou d'améliorer leurs propriétés
• B22F 10/73 - Recyclage de la poudre
• B33Y 40/00 - Opérations ou équipements auxiliaires, p.ex. pour la manipulation de matériau

Produits et services

Machine tools, namely, machine tools in particular for making rapid prototypes and small series of objects, functional models and production models, and for manufacturing multi-material units and parts in the field of additive manufacturing; machine coupling and transmission components except for land vehicles; handling machines, namely, palletizers; machine tools for deforming materials; stereotype machines; printing machines for use on sheet metal; machines for three- dimensional modeling, in particular of objects, parts, prototypes, models, samples and molds by deposition of successive layers of material, namely, 3D printers; machines for model and mold making, namely, 3D printers; machines for rapid prototyping and manufacture by means of laser sintering, laser melting or three-dimensional printing; printer for the manufacturing from computer files of objects in three dimensions Scientific, photographic, optical, weighing, measuring, signaling, supervision/checking apparatus and instruments, namely, optical sensors; apparatus for the remote control by computer of machine tools; computer peripheral devices, namely, computer hardware and electronic data capture systems consisting of optical code readers; computer peripheral devices allowing the restitution of information during the interaction with virtual objects; analogical and digital converters notably scanners allowing the obtaining of a computer file in three dimensions of a device for study; sensor arm in the nature of a measuring apparatus for obtaining of a computer file in three dimensions; computer software tools for digital sculpture for obtaining of computer files in two and three dimensions in the field of additive manufacturing; apparatus for recording, transmission, reproduction or processing of sound or images; computer programs, namely, software for the creation, simulation, and animation of images in three dimensions on computers or graphic work stations in the field of additive manufacturing; data compression software for the transformation of the size of computer files in the field of additive manufacturing; software for the optimization of assisted manufacturing by computer in the field of additive manufacturing; software for the processing of scanned data in the field of additive manufacturing; software of retro conception for the reconstruction of models from physical pieces with the exclusion of software in relation to systems of management and surveying of telecommunications in the field of additive manufacturing; software for the modeling in three dimensions of objects, parts, prototypes, models, samples, molds by deposition of successive layers of material in the field of additive manufacturing; software for the controlling and piloting of a machine for three-dimensional modeling in the field of additive manufacturing; software for the transformation of image files in two dimensions in files of objects in three dimensions in the field of additive manufacturing; lasers not for medical purposes Treatment of metals; assembly of products for others; metal casting; metal laser sintering; cutting of textile materials and metals by means of laser melting; machining of materials and metals for others; metal plating; metal tempering; metalworking consisting of pressing, planing, surfacing, countersinking, screw-tapping, chamfering, shotblasting, drilling, and laminating; stripping, galvanizing and etching of metals; provision of material and metal treatment information; technical research relating to the treatment and cutting of materials and metals; rapid prototyping, in particular prototyping by means of laser melting, laser sintering and three-dimensional printing Education services, namely, workshops in the field of additive manufacturing processes; teaching services, namely, workshops in the field of additive manufacturing processes; training services, namely, workshops in the field of additive manufacturing processes; professional training services, namely, workshops in the field of additive manufacturing processes; providing practical and theoretical training and educational demonstrations for others in the fields of printing, three dimensional printing, scanning, equipment for three dimensional printing, and treatment of metals; professional advice and consultancy in the field of training for additive manufacturing processes; educational services for others, namely, providing training of technicians in the field of additive manufacturing; publishing of printed matter, namely, journals, magazines, audio and audio visual recordings, including cassettes and audio and/or video discs, visual and audio-visual optical compact discs, books, newspapers, newsletters, publications, pamphlets, manuals, guides; publication of articles and texts except publicity texts; providing of on-line electronic publications, not downloadable, namely, magazines in the field of additive manufacturing; arranging and conducting of educational programs, namely, student competitions in the field of additive manufacturing; arranging and conducting of educational conferences, meetings, seminars, congresses, discussions, debates, colloquiums, workshops and exhibitions in the field of additive manufacturing Industrial analysis of the goods and services of others for quality assurance and technological research services in the field of additive manufacturing machines; technical research for the design and development of molds, models and prototypes; surveying; engineering services; technical, scientific and technological project studies, namely, conducting scientific feasibility studies; engineering drawing; engineering consultancy in the field of manufacturing processes; engineering evaluation in the fields of technologies

Abrégé

The present application concerns a method of manufacturing an implant abutment (20) comprising a step of providing an insert (21) in a format and material that are predetermined and a step of forming a stump (26) of specific geometry by laser melting of a powder of the same material as the insert starting from a surface of the insert (21). It also concerns a device for its implementation comprising a plate comprising a planar upper surface with a plurality of cavities. It also concerns a machine, for implementing the method and comprising the device, as well as the abutment (20) so obtained. The insert comprises an upper part (21) having a roughness comprised between approximately 0.1 µm and 0.3 µm and a lower part (22) having a roughness comprised between approximately 0.7 µm and 0.9 µm and the stump (26) has a roughness comprised between approximately 5 and 10 µm.

Classes IPC  ?

• A61C 13/00 - Prothèses dentaires; Leurs procédés de fabrication
• A61C 8/00 - Moyens destinés à être fixés à l'os de la mâchoire pour consolider les dents naturelles ou pour y assujettir des prothèses dentaires; Implants dentaires; Outils pour l'implantation