Patents Assigned to Sandvik Intellectual Property AB
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Patent number: 12065928Abstract: A control unit for controlling machine functions of a mining machine, such as an underground mining machine, tunneling machine or bolting rig, includes a flameproof housing having at least one fluid inlet and at least one fluid outlet, and a plurality of fluid control valves respectively communicating with the at least one inlet and outlet. In particular, the fluid control valves are formed inside at least one valve monoblock, the monoblock including a plurality of distinct fluid passages.Type: GrantFiled: January 8, 2021Date of Patent: August 20, 2024Assignee: Sandvik Intellectual Property ABInventors: Reinhold Pogatschnigg, Christian Umundum
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Patent number: 12031207Abstract: A coated cutting tool includes a substrate coated with a multi-layered wear resistant coating having a layer of ?-Al2O3 and a layer of titanium carbonitride TixCyN1-y, with 0.85?x?1.3 and 0.4?y?0.85, deposited on the ?-Al2O3 layer. The TixCyN1-y exhibits a texture coefficient TC(hkl), measured by X-ray diffraction using CuK? radiation and ?-2? scan. The TC(hkl) is defined according to Harris formula: TC ? ( hkl ) = I ? ( hkl ) I 0 ? ( hkl ) ? [ 1 n ? ? n = 1 n ? I ? ( hkl ) I 0 ? ( hkl ) ] - 1 , wherein I(hkl) is the measured intensity (integrated area) of the (hkl) reflection; I0(hkl) is standard intensity of the standard powder diffraction data according to JCPDS card no. 42-1489; n is the number of reflections used in the calculation, and where the (hkl) reflections used are (1 1 1), (2 0 0), (2 2 0), (3 1 1), (3 3 1), (4 2 0) and (4 2 2), and wherein TC(1 1 1)?3.Type: GrantFiled: March 26, 2018Date of Patent: July 9, 2024Assignee: Sandvik Intellectual Property ABInventors: Erik Lindahl, Linus Von Fieandt
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Publication number: 20240141466Abstract: A corrosion resistant duplex stainless steel (ferritic austenitic alloy) is suitable for use in a plant for the production of urea. Uses of the corrosion resistant duplex stainless steel include in objects made of said duplex stainless steel, in methods for the production of urea, in a plant for the production of urea comprising one or more parts made from said duplex stainless steel, and in methods of modifying an existing plant for the production of urea. In one aspect, the composition consists of in weight % (wt %): C 0.010 to 0.015; S 0.08 to 0.23; Mn 1.0 to 1.05; Cr 29.07 to 29.92; Ni 5.76 to 7.17; Mo 3.0 to 4.0; W max 2.55; N 0.3 to 0.35; Cu max 0.01; S max 0.008; P max 0.008; at least one of Ti, Nb, Hf, Ca, Ba, V, and B max 0.5 total; balance Fe and unavoidable occurring impurities.Type: ApplicationFiled: January 9, 2024Publication date: May 2, 2024Applicant: Sandvik Intellectual Property ABInventors: Daniel GULLBERG, Christina HARALDSSON, Anders WILSON, Alexander SCHEERDER, Kirk OFEI
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Patent number: 11890683Abstract: A parting/grooving insert and a method of grinding a parting/grooving insert including rotating a plane grinding surface having a normal vector parallel to the axis of rotation and a tangential direction of rotation; providing a parting/grooving insert including a rake surface, a main clearance surface, and a main cutting edge formed between the rake and main clearance surfaces; orienting/positioning the insert relative to the grinding surface, such that the main clearance surface is parallel to the grinding surface, the normal vector of the main cutting edge being in the plane of the main clearance surface and with a vector component in the direction of rotation forming an angle to the tangential direction of rotation at the insert of at least 20 degrees from parallel orientation; and grinding the main clearance surface to provide grinding marks having an angle to the normal vector of the main cutting edge corresponding to the angle to the tangential direction of rotation.Type: GrantFiled: September 24, 2020Date of Patent: February 6, 2024Assignee: Sandvik Intellectual Property ABInventors: Tobias Jarvstrom, Henrik Imrell
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Patent number: 11890686Abstract: A milling insert for a side and face milling tool includes an upper side defining an upper extension plane, a lower side defining a lower extension plane, and a side surface extending between the upper and the lower sides around a periphery of the insert that includes a main radial clearance surface, two opposite axial clearance surfaces and two corner clearance surfaces. At least one cutting edge is formed in a transition between the upper and the side surfaces, wherein each cutting edge includes a main cutting edge extending above the main radial clearance surface and two corner cutting edges extending above the corner clearance surfaces on opposite sides of the main cutting edge. The main cutting edge slopes downward toward a midpoint of the main cutting edge and the main cutting edge and the main radial clearance surface slope outward from the corner cutting edges toward the midpoint.Type: GrantFiled: February 21, 2023Date of Patent: February 6, 2024Assignee: Sandvik Intellectual Property ABInventors: Linda Stefansson, Ulrik Sunnvius
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Patent number: 11866371Abstract: The present disclosure relates to a heating element, wherein at least one part of the heating element is manufactured from a molybdenum disilicide composition and wherein in the molybdenum disilicide composition, molybdenum is substituted by chromium according to (Mo1-xCrx)Si2 and x is in the range of 0.16?x?0.19.Type: GrantFiled: March 15, 2019Date of Patent: January 9, 2024Assignee: Sandvik Intellectual Property ABInventors: Erik Ström, Petter Lindblom
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Patent number: 11826836Abstract: A cutting insert for a rotary drill tool and drill tool assembly in which an insert and a support body are coupled via a plurality of axial support surfaces. The support surfaces include a first declined orientation in the axial direction and a second declined orientation in the circumferential direction, so as to manage and control transmission of loading forces at the region of mounting the insert at the support body.Type: GrantFiled: July 4, 2018Date of Patent: November 28, 2023Assignee: Sandvik Intellectual Property ABInventor: Helena Pabel
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Patent number: 11724299Abstract: The present disclosure relates to a method for straightening of a tube comprising a ferritic FeCrAl-alloy. One reason for the challenges regarding the cold working of a hollow of a ferritic FeCrAl-alloy into a finished tube is that FeCrAl-alloys have a low ductility. Even if a tube of a FeCrAl-alloy is obtained by cold working a hollow into a tube, the tube can hardly be straightened. This is even more a problem if a tube obtained is annealed, wherein the annealing leads to a deformation of tube along the longitudinal direction of the tube. Therefore, there is a need for a method for straightening of a tube comprising a ferritic FeCrAl-alloy. Thus, according to the present disclosure a method for straightening of a tube is suggested, wherein the method comprises the steps of providing a tube comprising a ferritic FeCrAl-alloy, heating the tube, and straightening and forming the heated tube by stretching.Type: GrantFiled: December 21, 2018Date of Patent: August 15, 2023Assignee: Sandvik Intellectual Property ABInventors: Fernando Rave, Krister Wickman, Thomas Froböse
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Patent number: 11679428Abstract: A connection tube (1) for connecting two tubes (8, 9) of different alloys, wherein the connection tube has a central through-hole extending along a longitudinal axis and comprises a first end portion (2) of a first alloy, a second end portion (3) of a second alloy, and a middle portion (4) which is at least partly double-layered with said second alloy forming an annular inner layer and said first alloy forming an annular outer layer, wherein a metallic bond has been formed between said layers. The inner and outer layers are mechanically interlocked by means of at least one helically extending thread formed in an interface between said layers. The connection tube is manufactured from a base component and an outer component threaded onto the base component to form a work piece, which is hot worked to form a metallic bond.Type: GrantFiled: December 22, 2017Date of Patent: June 20, 2023Assignee: Sandvik Intellectual Property ABInventors: Olle Eriksson, Henrik Häll
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Publication number: 20230182187Abstract: A high temperature iron-chromium-aluminium (FeCrAl) alloy tube extending along a longitudinal axis, wherein the tube is formed from a continuous strip of a high temperature FeCrAl alloy and comprises a helical welded seam. The high temperature FeCrAl alloy tube is manufactured by feeding a continuous strip of the high temperature FeCrAl alloy toward a tube shaping station, helically winding the strip such that long edges of the strip abut each other and a rotating tube moving forward in a direction parallel to its longitudinal axis is formed, and continuously joining said abutting long edges together in a welding process directly when the tube is formed, whereby a welded tube comprising a helical welded seam is obtained.Type: ApplicationFiled: February 8, 2023Publication date: June 15, 2023Applicant: Sandvik Intellectual Property ABInventor: Krister WICKMAN
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Patent number: 11623283Abstract: A turning insert includes a head portion connected to a stem portion. A CBN cutting edge includes a surface generating cutting edge and two major cutting edge portions, such that each major cutting edge portion forms an angle of 5-20° in relation to a tangent line of the cutting edge at a forward point of the cutting edge.Type: GrantFiled: December 19, 2017Date of Patent: April 11, 2023Assignee: Sandvik Intellectual Property ABInventor: Sacha Kotarac
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Patent number: 11603585Abstract: The present disclosure relates to an austenitic stainless alloy comprising in weight % (wt %): C less than 0.03; Si less than 1.0; Mn less than or equal to 1.2; Cr 26.0 to 30.0; Ni 29.0 to 37.0; Mo 6.1 to 7.1 or (Mo+W/2) 6.1 to 7.1; N 0.25 to 0.36; P less than or equal to 0.04; S less than or equal to 0.03; Cu less than or equal to 0.4; balance Fe and unavoidable impurities and to the use thereof and to products made thereof. Thus, the austenitic stainless alloy comprises a low content of manganese in combination with a high content of nitrogen. The present disclosure also relates to the use of said austenitic stainless alloy, especially in highly corrosive environments and to products made of thereof.Type: GrantFiled: March 8, 2021Date of Patent: March 14, 2023Assignee: Sandvik Intellectual Property ABInventors: Ulf Kivisakk, Karin Antonsson, Peter Stenvall
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Patent number: 11602780Abstract: A high temperature iron-chromium-aluminium (FeCrAl) alloy tube extending along a longitudinal axis, wherein the tube is formed from a continuous strip of a high temperature FeCrAl alloy and comprises a helical welded seam. The high temperature FeCrAl alloy tube is manufactured by feeding a continuous strip of the high temperature FeCrAl alloy toward a tube shaping station, helically winding the strip such that long edges of the strip abut each other and a rotating tube moving forward in a direction parallel to its longitudinal axis is formed, and continuously joining said abutting long edges together in a welding process directly when the tube is formed, whereby a welded tube comprising a helical welded seam is obtained.Type: GrantFiled: July 8, 2022Date of Patent: March 14, 2023Assignee: Sandvik Intellectual Property ABInventor: Krister Wickman
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Publication number: 20220339688Abstract: A high temperature iron-chromium-aluminium (FeCrAl) alloy tube extending along a longitudinal axis, wherein the tube is formed from a continuous strip of a high temperature FeCrAl alloy and comprises a helical welded seam. The high temperature FeCrAl alloy tube is manufactured by feeding a continuous strip of the high temperature FeCrAl alloy toward a tube shaping station, helically winding the strip such that long edges of the strip abut each other and a rotating tube moving forward in a direction parallel to its longitudinal axis is formed, and continuously joining said abutting long edges together in a welding process directly when the tube is formed, whereby a welded tube comprising a helical welded seam is obtained.Type: ApplicationFiled: July 8, 2022Publication date: October 27, 2022Applicant: Sandvik Intellectual Property ABInventor: Krister WICKMAN
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Patent number: 11471957Abstract: A method for hole cutting in a workpiece made of CFRP with a cutting tool including at least one cutting edge is provided. Further, a hole cutting assisting apparatus and an apparatus for hole cutting includes a cutting tool, a drive for rotating the cutting tool, and a heating element configured for heating at least a portion of the cutting edge of the cutting tool.Type: GrantFiled: May 30, 2017Date of Patent: October 18, 2022Assignee: Sandvik Intellectual Property ABInventor: Eleanor Merson
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Patent number: 11446722Abstract: A high temperature iron-chromium-aluminium (FeCrAl) alloy tube extending along a longitudinal axis, wherein the tube is formed from a continuous strip of a high temperature FeCrAl alloy and comprises a helical welded seam. The high temperature FeCrAl alloy tube is manufactured by feeding a continuous strip of the high temperature FeCrAl alloy toward a tube shaping station, helically winding the strip such that long edges of the strip abut each other and a rotating tube moving forward in a direction parallel to its longitudinal axis is formed, and continuously joining said abutting long edges together in a welding process directly when the tube is formed, whereby a welded tube comprising a helical welded seam is obtained.Type: GrantFiled: November 14, 2016Date of Patent: September 20, 2022Assignee: Sandvik Intellectual Property ABInventor: Krister Wickman
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Patent number: 11396047Abstract: A method to form a surface on a metal work piece includes providing a turning insert that has a nose angle formed between first and second cutting edges less than or equal to 85°; providing a turning tool having a tool body with an insert seat in which the turning insert is mountable; arranging the orientation of the second cutting edge such that it forms a back clearance angle of more than 90° in a feed direction; rotating the metal work piece around a rotational axis in a first direction; moving the turning insert in a direction parallel to or at an angle less than 45° relative to the rotational axis; and setting the longitudinal axis of the tool body at an angle greater than zero but less than or equal to 90° relative to the rotational axis of the metal work piece.Type: GrantFiled: August 14, 2019Date of Patent: July 26, 2022Assignee: Sandvik Intellectual Property ABInventors: Ronnie Lof, Adam Johansson
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Patent number: 11365477Abstract: A coated cutting tool includes a multilayer of alternating sublayers of ?-Al2O3 and sublayers of TiN, TiC, TiCN, TiCO or TiCNO. The multilayer includes at least 3 sublayers of ?-Al2O3. The multilayer further exhibits an XRD diffraction over a ?-2? scan of 15°-140°, wherein the 0 0 2 diffraction peak (peak area) is the strongest peak originating from the ?-Al2O3 sublayers of the multilayer.Type: GrantFiled: June 19, 2018Date of Patent: June 21, 2022Assignee: Sandvik Intellectual Property ABInventors: Erik Lindahl, Jan Engqvist
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Patent number: 11311948Abstract: A cutting insert for a rotary drill tool and a drill tool assembly in which an insert and a support body are coupled via cooperative contact surfaces and a mounting screw. The contact surfaces provide a dual function to axially and rotationally lock the insert at the support body in addition to providing a centring function of the insert.Type: GrantFiled: July 4, 2018Date of Patent: April 26, 2022Assignee: Sandvik Intellectual Property ABInventor: Patrik Johansson
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Patent number: 11313006Abstract: A process of producing an austenitic stainless steel tube comprises the steps of: a) producing an ingot or a continuous casted billet of the austenitic stainless steel, b) hot extruding the ingot or the billet obtained from step a) into a tube, c) cold rolling the tube obtained from step b) to a final dimension thereof. The outer diameter D of the cold rolled tube is 70-250 mm and the thickness t thereof is 6-25 mm, and the cold rolling step is performed such that the following formula is satisfied: (2.5×Rc+1.85×Rh?17.7×Q)=(Rp0.2target+49.3?1073×C?21Cr?7.17×Mo?833.3×N)±Z??(1) wherein Rp0.2target is targeted yield strength and is 750?Rp0.2target?1000 MPa, 30?Rc?75%, 50%?Rh?90%, 1?Q?3.6, and Z is 65.Type: GrantFiled: December 28, 2016Date of Patent: April 26, 2022Assignee: Sandvik Intellectual Property ABInventors: Erik Könberg, Daniel Svedberg