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公开(公告)号：US11242584B2
公开(公告)日：2022-02-08
申请号：US15746006
申请日：2016-07-20
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Daniel Gullberg , Christina Haraldsson , Anders Wilson , Alexander Scheerder , Kirk Ofei
IPC: C22C38/44 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/42 , C21D6/00 , C21D9/08 , B01D3/32 , C07C273/04 , F28F21/08 , B01J19/02 , C21D8/00 , C22C33/02 , C22C38/58 , C22C33/04 , B22F3/15 , C21D8/10
Abstract: The present disclosure relates to a corrosion resistant duplex stainless steel (ferritic austenitic alloy), which is suitable for use in a plant for the production of urea and uses thereof. The disclosure also relates to objects made of the duplex stainless steel. Furthermore, the present disclosure relates to a method for the production of urea and to a plant for the production of urea having one or more parts made from the duplex stainless steel, and to a method of modifying an existing plant for the production of urea.
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公开(公告)号：US11229960B2
公开(公告)日：2022-01-25
申请号：US16472713
申请日：2017-11-10
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Thomas Eriksson , Jorgen Jansson Udd
Abstract: A cutting insert and a shoulder milling tool are disclosed. The cutting insert includes a surface-wiping secondary cutting edge inclined in relation to a median plane of the cutting insert, such that a distance to the median plane decreases in a direction toward a corner cutting edge. A circumferential surface includes a clearance surface extending along a main cutting edge. The clearance surface along the main cutting edge extends at an acute angle to the median plane, such that the clearance surface forms a negative nominal clearance angle, and wherein the circumferential surface includes first and second abutment surfaces configured for abutment against axial and/or radial support surfaces of the milling tool, the abutment surfaces extending along at least part of the main cutting edge and the surface-wiping secondary cutting edge.
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公开(公告)号：US11185933B2
公开(公告)日：2021-11-30
申请号：US16612062
申请日：2018-05-03
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Rasmus Hemph , Hakan Carlberg
Abstract: A drill body and a drill are disclosed. The drill body has a rotational axis and comprises a central chip flute extending along a periphery of the drill body. A central chip flute cross-section has a centre line extending in a plane extending perpendicularly to the rotational axis, and through the rotational axis. The central chip flute cross-section has a depth, as seen along the centre line, and a width as seen perpendicularly to the centre line. The central chip flute cross-section has a maximum depth Dp within a range of Dp=0.75×D/2 to Dp=0.90×D/2, and a maximum width W within a range of W=0.75×D/2 to W=0.90×D/2, and wherein the maximum width W extends symmetrically about the centre line.
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公开(公告)号：US11163293B2
公开(公告)日：2021-11-02
申请号：US16259926
申请日：2019-01-28
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Saigopal Nelaturi , Arvind Rangarajan , Tolga Kurtoglu , Christian Fritz
IPC: G06F17/10 , G05B19/4097 , G06F30/00
Abstract: Automated fixture layout is approached in two distinct stages. First, the spatial locations of clamping points on the work piece are determined to ensure immobility of the fixtured part under any infinitesimal perturbation. Second, spatial locations are matched against a user-specified library of reconfigurable clamps to synthesize a valid fixture layout or configuration that includes clamps that are accessible and collision free. The spatial locations matching during the second stage can be the same spatial locations chosen in the first stage to ensure immobility, or a different set of spatial locations.
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公开(公告)号：US11135618B2
公开(公告)日：2021-10-05
申请号：US16461688
申请日：2016-11-17
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Mats Malmberg , Thomas Fransson , Eskil Beckdahl
Abstract: Screening media is arranged to screen oversized material, the media having a main body and a plurality of openings extending through the main body between an upward facing contact face and a downward facing bottom face. A textured pattern is provided at the contact face to provide a roughened surface for the partial entrapment of material fines. Such a configuration protects the screen media from aggressive contact with the material to be screened and provides a bedding layer that is maintained by material-on-material attrition during bulk material flow over the media.
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Patent Agency Ranking
公开(公告)号：US11105153B2
公开(公告)日：2021-08-31
申请号：US15768068
申请日：2015-10-14
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Christoph Haberer , Andreas Bischof
Abstract: The present disclosure relates to an extendable apparatus, such as an extendable apparatus for a drill head, a drill head including an extendable apparatus, and a method of operating a drill head. The extendable apparatus includes a base section, a drive section, an extension section, and a functional section. The base section and the drive section are moveable with respect to the extension section and the functional section along a longitudinal axis. The drive section and the functional section are rotationally rigidly coupled to each other. The base section and the extension section are rotationally rigid coupled to each other, and the drive section and the functional section are rotationally moveably coupled to the extension section.
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公开(公告)号：US11104979B2
公开(公告)日：2021-08-31
申请号：US16093541
申请日：2017-04-06
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Carl-Johan Maderud , John De Flon
IPC: B22F3/15 , C22C29/06 , C22C1/05 , B22F10/10 , B33Y10/00 , B33Y70/00 , B22F1/00 , B23B27/14 , B23C5/16 , B24D3/00 , B22F3/10 , E21C35/183 , E21B10/46 , B33Y80/00 , B22F5/00
Abstract: The present invention relates to a powder mixture for three-dimensional (3D) printing of a cermet or a cemented carbide body. The powder mixture includes 65-85 wt % of porous cemented carbide or cermet particles of a median particle size (D50) of 10-35 μm, and 15-35 wt % of a dense cemented carbide or cermet particles of a median particle size (D50) of 3-10 μm. The present invention also relates to a method of making a cermet or cemented carbide body, the method including the steps of forming the powder mixture, 3D printing a body using the powder mixture and a printing binder and thereby forming a 3D printed cermet or cemented carbide green body and sintering the green body and to form a cermet or cemented carbide body.
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公开(公告)号：US11054065B2
公开(公告)日：2021-07-06
申请号：US16472461
申请日：2017-12-22
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Olle Eriksson , Henrik Häll
Abstract: Method for manufacturing a composite tube having at least one double-layered portion with an annular outer layer of a first alloy and an annular inner layer of a second alloy provides a base component of the second alloy, having a central through-hole and an externally threaded section, provides an outer component of the first alloy, having an internally threaded section configured to engage with the externally threaded section, forms a tubular work piece by mounting the outer component around the base component such that the internally threaded section is in engagement with the externally threaded section, and hot works the work piece so that a metallic bond is formed between the threaded sections while the mechanical interlock is maintained, and so that the work piece is elongated and its outer diameter is reduced, thus forming a composite tube.
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公开(公告)号：US11047235B2
公开(公告)日：2021-06-29
申请号：US16606193
申请日：2018-03-30
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Luis Garcia , Guenther Staber
Abstract: A cutting head for cutting apparatus suitable for creating tunnels or subterranean roadways and the like. The cutting head includes a rotatable cutting head body and a plurality of cutting units mounted thereon. The cutting units include at least first and second different types of cutting units. The first type of cutting unit has a first rotatable cutter having a first disc body and a first arrangement of buttons for abrading rock. The first buttons are mounted in a radially peripheral portion of the disc body and protrude outwardly therefrom. The second type of cutting unit has a second rotatable cutter having a second disc body and a second arrangement of buttons. The second buttons are mounted in a radially peripheral portion of the disc body and protrude outwardly therefrom. The different types of cutting units differ from one another by at least the arrangements of their buttons.
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公开(公告)号：US11045885B2
公开(公告)日：2021-06-29
申请号：US16339627
申请日：2017-06-16
Applicant: SANDVIK INTELLECTUAL PROPERTY AB
Inventor： Damien Joly , Gilles Marie , Yannick Sarton , Philippe Andre , Vincent Lemoine , Marc Rue
Abstract: A face milling tool includes a tool body having an axial front end surface with several seats. Each seat has support surfaces for rotationally locking and supporting a tangential cutting insert in the seat. One of the support surfaces is a flat axial support surface for supporting the tangential cutting insert in an axial direction defined by the central rotation axis. The flat axial support surface extends perpendicular to the central rotation axis and is situated axially foremost in the seat. A side wall of each seat is formed out of round side support surfaces. Each tangential cutting insert includes an axial back side with a flat axial contact surface abutting the flat axial support surface and a projecting member extending axially from the flat axial contact surface and having a circumferential side surface forming out of round side contact surfaces abutting the out of round side support surfaces.
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