Patents Assigned to Sandvik
-
Patent number: 7041252Abstract: A copper base alloy, which is resistant or immune to carburization, metal dusting and coking, and resistant to oxidation, the alloy having the following composition (all contents in weight %): Al >0–15 Si 0–6 Mg 0–6 one or more of the group of Rare Earth Metal (REM), yttrium, hafnium, zirconium, lanthanum, cerium) up to 0.3 wt. % each; Cu balance; and normally occurring alloying additions and impurities. Related articles of manufacture and methods are also described.Type: GrantFiled: February 28, 2003Date of Patent: May 9, 2006Assignee: Sandvik Intellectual Property ABInventors: Peter Szakalos, Mats Lundberg, Johan Hernblom
-
Publication number: 20060093860Abstract: A coated product is disclosed consisting of a metallic substrate and a coating of a MAX material type. Furthermore, a method of producing such a coated product is disclosed using vapor deposition technique in a continuous roll to roll process.Type: ApplicationFiled: December 29, 2004Publication date: May 4, 2006Applicant: SANDVIK ABInventors: Mikael Schuisky, Jens-Petter Palmqvist
-
Patent number: 7036748Abstract: A new method and apparatus for manufacturing powders of cemented carbide, cermets, ceramics and similar materials with good abrasive wear resistance starting from a slurry, wherein the slurry is introduced into a drop forming device including at least one essentially horizontal oriented rotating drop forming disk (12), from which the drops are slung out to solidify by centrifugal force.Type: GrantFiled: August 25, 2003Date of Patent: May 2, 2006Assignee: Sandvik ABInventors: Alf Andersson, Bo Nelander, Ulf Jutterström
-
Patent number: 7037051Abstract: A cutting insert comprises first and second polygonally-shaped main faces arranged substantially parallel to one another, and a side face structure interconnecting the first and second main faces to define a peripheral edge. At least the first main face includes at least one projection extending to the peripheral edge, the projection formed by: a portion of the first main surface (defining a relief surface), a portion of the side face structure (defining a rake surface), and a portion of the peripheral edge (defining a cutting edge). The insert includes support surfaces defined by a portion of the second main face, and by portions of the side surface structure other than the rake surface.Type: GrantFiled: June 9, 2004Date of Patent: May 2, 2006Assignee: Sandvik ABInventor: Günter Wermeister
-
Patent number: 7036647Abstract: A conveying apparatus includes a conveying assembly and a vertical funnel assembly mounted at a discharge end of the conveying assembly for guiding the discharge of bulk material. The funnel assembly includes a vertical row of frames slidably disposed on a pair of vertical wires. Adjacent frames are connected by flexible connecting elements. Each frame releasably carries a funnel element for conducting the bulk material so that a funnel element can be replaced without having to dismantle all of the funnel elements. Each funnel element includes a safety release connection enabling the funnel assembly to collapse under excessive loads, thereby protecting the conveyor from damage.Type: GrantFiled: October 28, 2004Date of Patent: May 2, 2006Assignee: Sandvik Intellectual Property ABInventor: Mats Malmberg
-
Publication number: 20060088390Abstract: A tool body includes an insert seat for receiving a cutting insert for chip-removing machining. The insert seat includes a bottom surface and support surfaces upstanding from the bottom surface. Each support surface comprises at least three ridges separated by grooves. Each groove has a depth greater than zero and no greater than 0.015 mm. An insert mounted in the seat by a screw has a center hole whose axis is offset from the axis of a threaded hole of the body in which the screw is connected. That offset distance creates a prestress of the insert toward the ridges. The depth of the grooves (i.e., the height of the ridges) is substantially less than the distance of the offset.Type: ApplicationFiled: August 26, 2005Publication date: April 27, 2006Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Lars-Gunnar Wallstrom, Lennart Wihlborg
-
Patent number: 7032684Abstract: A rock drill includes a string of components interconnected by screw threads and connected to a shank. A percussion piston is reciprocated against the shank during a drilling operation, while a support device applies axial support to the rear of the shank, to enhance the drilling action. When the components are being unscrewed, the percussion piston is actuated to strike the rear end of the drill string, after the support device has at least partially released the axial support of the shank, to enable tensile stress to be generated in the components by the percussive impacts to facilitate unscrewing of the components.Type: GrantFiled: June 18, 2001Date of Patent: April 25, 2006Assignee: Sandvik Intellectual Property ABInventors: Timo Muuttonen, Pekka Salminen
-
Patent number: 7032686Abstract: The drilling and bolting head (7) of compact structure, is designed for use in mine galleries of small height. It comprises: a transverse table (8) connected to the carrying vehicle, preferably with a device (9 to 12) for lifting this table (8); a slide (13) displaceable along the table (8); an intermediate support (16) displaceable vertically on the slide (13); a vertical beam (21) mounted pivotally on the intermediate support (16); a vertical slideway (23) guided vertically on the beam (21); a drill (26), with a device (33, 34) for the drilling and setting of bolts, which is guided vertically on the slideway (23); motorized device (14, 18, 30) for controlling the various movements. The intermediate support (16) possesses an upper part (20) which can be used as a prop, in combination with a jack (18) arranged along the vertical pivot axis (19) of the beam (21).Type: GrantFiled: September 29, 2004Date of Patent: April 25, 2006Assignee: Sandvik Tamrock Secoma SASInventors: Jean-Claude Barthomeuf, Alain Comorge
-
Patent number: 7034260Abstract: A method of producing a heating element made from molybdenum silicide and alloys thereof, and which includes aluminum oxide on its surface. A material is produced that contains substantially Mo(Si1-xAlx)2 and Al2O3 by mixing a mixture of a silicon and molybdenum compound with an aluminum compound. Either of the silicon and molybdenum compounds include Mo(Si1-yAly)2 and are mixed with one or both of an aluminum compound in the form of Al2O3 or Al(OH)3 and optionally the compounds SiO2, Si, and MoO3, or by virtue of the mixture of the silicon and molybdenum compound containing MoO3 and Al and Si and/or SiO2. The input components together have a degree of purity corresponding to at least 98%. The mixture reacts exothermically and/or by being sintered, so that exchange reactions take place to form the compounds Mo(Si1-xAlx)2 and Al2O3, where x lies in the range of 0.4–0.6.Type: GrantFiled: April 4, 2003Date of Patent: April 25, 2006Assignee: Sandvik ABInventors: Mats Sundberg, Anders Magnusson
-
Publication number: 20060070505Abstract: A rotary cutter drum includes a cutter portion formed of a multiphase material and includes first and second substantially cylindrical, radially outwardly exposed surfaces, and a knife member formed of one piece with the exposed surfaces and arranged to axially separate the first and second surfaces from one another. The knife member protrudes by a distance in the range of 1 to 5 mm radially outwardly beyond a smallest diameter portion of the first and second exposed surfaces. The knife member includes two sides terminating at respective ones of the first and second exposed surfaces.Type: ApplicationFiled: June 24, 2005Publication date: April 6, 2006Applicant: Sandvik Intellectual Property ABInventors: Gilbert Grenier, Stephanie Baty
-
Patent number: 7021182Abstract: An indexible turning tool for chip forming machining, includes a holder equipped with insert pockets receiving replaceable inserts, as well as a securing portion intended to be received in a tool machine. At least one of the replaceable inserts has a main plane that extends laterally in relation to the tool's axial direction.Type: GrantFiled: October 27, 2003Date of Patent: April 4, 2006Assignee: Sandvik Intellectual Property ABInventor: Daniel Edler
-
Patent number: 7021871Abstract: The invention relates to an indexable milling insert (3) having a polygonal basic shape, comprising four peripheral sides, which meet each other in pairs in one the one hand two acute corners (15), and on the other hand two obtuse corners (16). Between chip surfaces (17) on the top side of the insert and flank surfaces (18) along the peripheral sides, cutting edges (19) are formed, which individually comprise on the hand a major edge portion (20), and, on the other hand, a rounded minor edge portion (21), formed in connection with an acute corner (15).Type: GrantFiled: January 3, 2002Date of Patent: April 4, 2006Assignee: Sandvik Intellectual Property AktiebolagInventors: Peder Arvidsson, Jan Johansson, Lars-Erik Enquist
-
Publication number: 20060065088Abstract: A rotary cutter includes a hollow rotary mantle having a cutter arbour on an outer periphery thereof, through holes extending radially through the mantle, and an air distribution mechanism. The air distribution mechanism includes first and second parts. The first part is affixed to the mandrel coaxially therein for rotation therewith. The second part is arranged inside the first part, wherein the first distribution part is rotatable relative to the second distribution part. The first and second air distribution parts define air passages for communicating selective ones of the through-holes of the mantle with an air source in response to relative rotation between the first and second distribution parts.Type: ApplicationFiled: June 27, 2005Publication date: March 30, 2006Applicant: SANDVIK INTELLECTUAL PROPERTY HBInventors: Gilbert Grenier, Lilian Monteil
-
Publication number: 20060061206Abstract: A tool for mining rock by means of undercutting includes an attachment part which defines a center longitudinal axis, and a holder mounted to the attachment part by bearings for rotation relative thereto about the axis. An outer surface of the holder includes a circumferentially extending first groove. A button disk is mounted on the cutter and includes an inner surface having a circumferentially extending second groove. One of the grooves is superimposed relative to the other groove to define therewith a space. A wire extends within the space to hold the button disk on the cutter.Type: ApplicationFiled: August 19, 2005Publication date: March 23, 2006Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventor: Peter Nava
-
Publication number: 20060060389Abstract: A rock drill bit for percussive drilling includes a front face which has radially outer and inner portions. Fluid channels are disposed in the head portion in communication with the inner portion of the front face. The inner portion of the front face carries a plurality of front buttons. The outer portion comprises circumferentially spaced steel portions which are axially raised relative to the inner portion. Each raised portion carries one or two peripheral buttons located radially outwardly of an imaginary circle which intersects at least two of the front buttons and at least two of the flushing channels. The imaginary circle is arranged coaxially relative to the center axis.Type: ApplicationFiled: August 19, 2005Publication date: March 23, 2006Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Per-Ola Hadin, Fredrik Bjork
-
Publication number: 20060060388Abstract: A drill bit intended for percussive rock drilling is formed to reduce the occurrence of cavitation during percussive drilling. The drill bit includes an integral skirt and at least one channel for transport of flush medium, such as water. The drill bit has a front face provided with buttons, which define a greatest first external diameter (D0). A recess with a female thread, such as a rope or trapezoid thread for percussive drilling, extends into the drill bit from a rear end face of the drill bit. The recess has an axial depth (L0). The external surface of the skirt includes a conical portion having an axial extension that is greater than one-eighth of the depth (L0) of the recess but smaller than the depth (L0) of the recess.Type: ApplicationFiled: August 17, 2005Publication date: March 23, 2006Applicant: SANDVIK INTELLECTUAL PROPERTY ABInventors: Johan Linden, Bo Carlstrom
-
Patent number: 7013773Abstract: A tool holder simultaneously carries at least two diametrically arranged tool heads, each tool head carrying cutting inserts for chip removing machining. The tool holder includes an adaptor connected to a coupling. The adaptor has at least two diametrically opposite side surfaces which-diverge away from the coupling. The side surfaces have seats in order to replaceably receive respective tool heads. A line which lies in both a first basal plane and in one of the side surfaces forms an angle in the interval 1°–15° with a longitudinal center line of the tool holder.Type: GrantFiled: December 10, 2002Date of Patent: March 21, 2006Assignee: Sandvik ABInventor: Per Hansson
-
Patent number: 7013996Abstract: An impact device for a rock drill. The rock drill includes a tool and a mechanism for delivering a stress pulse to the tool. That mechanism includes an impact element supported to a frame of the drill, and a mechanism for subjecting the impact element to stress and thereafter releasing the impact element suddenly from the stress, whereupon stored stress energy in the impact element is discharged in the form of a stress pulse directed at the tool.Type: GrantFiled: January 2, 2004Date of Patent: March 21, 2006Assignee: Sandvik Tamrock OyInventors: Markku Keskiniva, Jorma Mäki, Erkki Ahola, Esa Rantala
-
Publication number: 20060055229Abstract: A holder block is mounted on a carrier and has formed therein a first hole and a water passage. A sleeve is mounted in the first hole and receives a cutter bit. The sleeve includes a shank and an enlarged flange disposed at a front end thereof. The shank is disposed in the first hole. The flange includes a rearwardly facing shoulder bearing against an outer surface of the block. A second hole extends through the shank and the flange and is adapted to receive the cutter bit. A spray nozzle is disposed in the flange and is connected to the water passage by way of an annular groove, for receiving water which it sprays forwardly against the cutter bit.Type: ApplicationFiled: September 15, 2004Publication date: March 16, 2006Applicant: SANDVIK ABInventor: Stephen Stehney
-
Patent number: 7011867Abstract: A coated cutting tool is composed of one or more layers of refractory compounds of which at least one layer is single-phase ?-alumina with a pronounced columnar grain-structure and strong texture in the [300]-direction. The alumina layer is preferably deposited by CVD (Chemical Vapor Deposition) and the preferred microstructure and texture are achieved by adding a second metal halide, and a texture modifying agent, to the reaction gas. When coated cemented carbide cutting tools according to the invention are used in the machining of steel or cast iron, several important improvements compared to prior art have been observed, particularly in the machining of nodular cast iron.Type: GrantFiled: April 14, 2004Date of Patent: March 14, 2006Assignee: Sandvik AktiebolagInventor: Per M{dot over (a)}rtensson