Abstract

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).

IPC Classes  ?

• G01N 21/77 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
• G01N 21/78 - Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
• G01N 21/80 - Indicating pH value
• G01N 21/81 - Indicating humidity
• G01N 21/03 - Cuvette constructions
• G01N 21/64 - FluorescencePhosphorescence
• B29C 64/255 - Enclosures for the building material, e.g. powder containers

Abstract

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.

IPC Classes  ?

• B01F 23/60 - Mixing solids with solids
• B01F 23/70 - Pre-treatment of the materials to be mixed
• B01F 23/80 - After-treatment of the mixture
• B01F 27/50 - Pipe mixers, i.e. mixers wherein the materials to be mixed flow continuously through pipes, e.g. column mixers
• B01F 27/724 - Mixers with rotary stirring devices in fixed receptaclesKneaders with stirrers rotating about a horizontal or inclined axis with helices or sections of helices with a single helix closely surrounded by a casing
• B01F 35/71 - Feed mechanisms
• B01F 35/00 - Accessories for mixersAuxiliary operations or auxiliary devicesParts or details of general application

Abstract

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).

IPC Classes  ?

• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying

Abstract

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).

IPC Classes  ?

• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 9/08 - Making metallic powder or suspensions thereofApparatus or devices specially adapted therefor using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying

Abstract

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.

IPC Classes  ?

• B22F 1/00 - Metallic powderTreatment of metallic powder, e.g. to facilitate working or to improve properties
• B22F 10/73 - Recycling of powder
• B33Y 40/00 - Auxiliary operations or equipment, e.g. for material handling

Goods & 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

Abstract

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.

IPC Classes  ?

• A61C 13/00 - Dental prosthesesMaking same
• A61C 8/00 - Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereonDental implantsImplanting tools