Abstract: The present disclosure relates to a martensitic stainless steel suitable for rock drill steel rods. Furthermore, the present disclosure also relates to the use of the martensitic stainless steel and to products manufactured thereof, especially drill rods.

Abstract: Transport system which makes to transport a wire or sheet of any length and with the required quality to the location of the use of the wire or the sheet. The transport system has a transport platform, a receptacle for the wire or the sheet, wherein the receptacle is configured such that the wire or the sheet may be received coiled on the receptacle, a drive, wherein the drive is configured such that the wire or the sheet may be conveyed by the drive in a transport direction, and a straightening device, wherein the straightening device is configured such that the wire or the sheet can be straightened with the straightening device, wherein the receptacle, the drive and the straightening device are arranged on the transport platform such that the wire or the sheet may be drawn automatically from the receptacle and fed to the straightening device by the drive.

Abstract: Transport system makes it possible to transport a pipe of any length and with the required quality to the location of the use of the pipe. The transport system for a pipe has a transport platform, a receptacle for the pipe, wherein the receptacle is configured in such a manner that the pipe may be received coiled on the receptacle, a drive, wherein the drive is configured in such a manner that the pipe may be conveyed by the drive in a transport direction, and a straightening device, wherein the straightening device is configured in such a manner that the pipe can be straightened with the straightening device. The receptacle, the drive and the straightening device are arranged on the transport platform in such a manner that the pipe may be drawn automatically from the receptacle and fed to the straightening device by the drive.

Abstract: A rock drill button having a body of sintered cemented carbide that has hard constituents of tungsten carbide (WC) in a binder phase of Co, wherein the cemented carbide has 4-12 mass % Co and balance WC and unavoidable impurities. The cemented carbide also has Cr in such an amount that the Cr/Co ratio is within the range of 0.043-0.19, and that the WC grain size mean value is above 1.75 ?m.

Abstract: A seal for a tool of a breaking hammer, a sealing arrangement, a breaking hammer and a method of sealing a tool of breaking hammer is provided. The seal includes a resilient first seal element and a rigid second seal element. The first seal element is fastened to a seal housing and the second seal element is fastened to the first seal element. The second seal element provides mechanical protection for the first seal element.

Abstract: 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.

Abstract: The present disclosure relates to a heating element comprising at least two parts which are composed of different molybdenum disilicide-based compositions, wherein at least one of the molybdenum disilicide-based parts is based on a chromium-alloyed based molybdenum disilicide composition ((Mo1-xCrx)Si2 where x is of from 0.05 to 0.25); and at least one part is based on a molybdenum disilicide-based composition comprising more than or equal to 90 weight % Mo(Si,Al)2. The present disclosure also relates to the use of the heating element.

Abstract: The present disclosure relates to a duplex stainless steel comprising in weight % (wt %): C less than 0.03; Si less than 0.60; Mn 0.40 to 2.00; P less than 0.04; S less than or equal to 0.01; Cr more than 30.00 to 33.00; Ni 6.00 to 10.00; Mo 1.30 to 2.90; N 0.15 to 0.28; Cu 0.60 to 2.20; Al less than 0.05; balance Fe and unavoidable impurities. The present disclosure also relates to a component or a construction material comprising the duplex stainless steel. Additionally, the present disclosure also relates to a process for manufacturing a component comprising said duplex stainless steel.

Abstract: The present invention relates to a method for forming a hollow 26 of a ferritic FeCrAl alloy into a tube 2. While tubes made of powder metallurgical, dispersion hardened, ferritic FeCrAl alloys are commercially available, hollows made of FeCrAl alloys so far can hardly be formed into tubes of small dimensions. The major reason for the problems in forming hollows of a ferritic FeCrAI alloy into a finished product is that FeCrAl alloys are brittle. It is therefore an aspect of the present invention to provide a tube 2 made of a ferritic FeCrAl alloy having arbitrary small dimensions. Furthermore, it is an aspect of the present invention to provide a machine 1 and a method for forming a tubular hollow 26 into a finished tube 2 of a ferritic FeCrAl alloy. At least one of the above aspects is addressed by a method for forming a hollow into a tube 2 comprising the steps providing the hollow 26 of a ferritic FeCrAl alloy, heating the hollow 26 to a temperature in a range from 90° C. to 150° C.

Abstract: A 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, comprising: —providing a base component (301) of the second alloy, having a central through-hole and an externally threaded section (302), —providing an outer component (401) of the first alloy, having an internally threaded section (402) configured to engage with the externally threaded section, —forming 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, —hot working 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.

Abstract: A ferritic alloy comprising in weight %: C: 0.01-0.1; N: 0.001-0.1; O: ?0.2; B: ?0.01; Cr: 9.0-13.0; Al: 2.5-8.0; Si: ?0.5; Mn: ?0.4; Y: ?2.2; Sc+Ce+La: ?0.2; Mo+W: ?4.0; Ti: ?1.7; Zr: ?3.3; Nb: ?3.3; V: ?1.8; Hf+Ta+Th: ?6.5; the balance being Fe and unavoidable impurities, wherein, the amounts of Ti+Zr+Nb+V+Hf+Ta+Th and C, N and O are balanced such that: at ? ? % ? ? Ti + at ? ? % ? ? Zr + at ? ? % ? ? Nb + at ? ? % ? ? V + at ? ? % ? ? Hf + at ? ? % ? ? Ta + at ? ? % ? ? Th - x * at ? ? % ? ? O - at ? ? % ? ? N at ? ? % ? ? C ? 1 wherein x is 0.5 unless the content of Y is more than or equal to 0.01 wt % then x is 0.67.

Abstract: A roller cutter unit is mountable at a cutting head of undercutting mining machines. The cutter unit includes an elongate mount shaft to position and support a cutter ring. The cutter ring is secured to the mount shaft via a bracket having a wedge segment configured to be wedged axially and radially between the cutter ring and the shaft. Accordingly, a mounting mechanism is provided to achieve a desired force transmission pathway from the cutter ring into the shaft so as to maximize the locking action of the cutter ring at the cutter unit.

Abstract: A milling tool for face milling includes a tool body and a plurality of cutting members arranged successively along a periphery of the tool body. Each cutting member includes a main cutting edge provided for a roughing operation and a subset having a first, a second and a third secondary cutting edge provided for a finishing operation. The first and third secondary cutting edges extend in a direction perpendicular to an axial direction and the second secondary cutting edge extends between the first and third secondary cutting edge. The main cutting edges are situated at the same radial position and the first secondary cutting edges are situated at the same axial position. A first end point of the second secondary cutting edges successively progress radially inward and a second end point of the second secondary cutting edges successively progress radially inward and axially outward along the periphery of the tool body.

Abstract: A method and a corresponding system and computer program product are provided. A model of an object to be manufactured is obtained. Information about one or more available machine tools and one or more available cutting tools is obtained. A geometric feature to be machined as part of manufacturing the object is identified. A database including strategies for machining different geometric features is accessed. The database includes a plurality of strategies defining different ways of machining the identified geometric feature. One or more strategies are selected from the plurality of strategies based on the obtained information. A computer simulation is performed for the one or more selected strategies, and user instructions responsive to the computer simulation are received. Instructions for causing one or more machine tools to manufacture the object via subtractive manufacturing are provided based on the user instructions and a strategy of the one or more selected strategies.

Abstract: A process for refining a nitrogen-containing metal alloy using arc remelting of a consumable electrode in a furnace, comprising: providing a consumable electrode of the metal alloy; providing a second electrode; providing a controlled atmosphere within the furnace; striking an arc between the consumable electrode and the second electrode to melt the consumable electrode and thereby form a molten metal alloy pool; maintaining the arc between the consumable electrode and the molten metal alloy pool; delivering the molten metal alloy into a mould and casting an ingot of refined metal alloy, wherein providing the controlled atmosphere comprises flowing Ar gas through the furnace at an Ar gas pressure of 1-500 Pa.

Abstract: An electric heater to heat a flow of a fluid having a jacket block comprising a plurality of longitudinal bores to allow the through-flow of a gas phase medium. An elongate heating element extends through each of the bores and is positionally stabilised relative to the jacket block via at least one support member, optionally in the form or an elongate rod to inhibit undesirable independent axial and/or lateral movement of the heating element relative to the jacket block.

Abstract: An electric heater to heat a flow of a fluid having a jacket block comprising a plurality of longitudinal bores to allow the through-flow of a gas phase medium. An elongate heating element extends through each of the bores that together with the jacket block define a heating assembly to heat the gas. The heating assembly is positionally stabilised within the electric heater via at least one brace configured to inhibit undesirable independent axial and/or lateral movement of the heating assembly within the electric heater.

Abstract: A mesh handler for a mining machine includes a generally U-shaped frame arranged for receiving and positioning at least one mesh against a roof portion of an underground tunnel. The frame includes at least one generally U-shaped rail and a guide mechanism arranged for guiding the mesh along the rail in a direction substantially perpendicular to a longitudinal direction of the mining machine. Moreover, a mining machine including the mesh handler is provided.

Abstract: 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.

Abstract: A method for producing a coating on a substrate, wherein the coating includes a PVD layer (A), deposited by cathodic arc evaporation, being a compound of the formula MexSiyAlzCaNbOc, wherein Me is one or more metals of groups 4, 5 and 6 in the IUPAC periodic table of elements. The PVD layer (A) is deposited by applying a pulsed bias voltage of from about ?40 to about ?450 V to the substrate and using a duty cycle of less than about 12% and a pulsed bias frequency of less than about 10 kHz. A coated cutting tool having a substrate and a coating is also disclosed, wherein the coating includes the PVD layer (A) with the compound of the formula MexSiyAlzCaNbOc. The PVD layer (A) is crystalline having a FWHM (Full Width at Half Maximum) value for the cubic (111) peak in X-ray diffraction of ?0.3 degrees (2theta).