Abstract: A method of and an arrangement for transmitting electric current to a furnace that is heated, either completely or partially, by electric current conducted in the furnace wall. The current is conducted through electrically conductive devices connected to the furnace wall. At least one of the devices in proximity to the furnace wall includes a section that has a smaller cross-sectional area than the remainder of the device. The current flow through the smaller cross-section develops heat in the region of the smaller section of a magnitude that corresponds substantially to the heat magnitude that would have been conducted from the furnace wall to the electrically conductive device in the absence of the smaller cross-sectional area.

Abstract: The present invention relates to a method relating to the operation of a burner and/or cooler (3), wherein gases are caused to flow through an inner pipe (7), out into an outer pipe (5) which surrounds the inner pipe (7), and back through that part of the volume of the outer pipe (5) not accommodated by the volume of the inner pipe (7). The invention is characterised by placing an inner bottom plates (8) in the outer pipe (5) in spaced relationship with the closed bottom (9) of said outer pipe (5), whereby the gases flowing through the inner pipe (7) and out into the outer pipe (5) are caused to turn back and pass between the outer pipe (5) and the inner pipe (7), thereby creating a gas pocket (12) between the bottom (9) of said outer pipe (5) and the bottom plate (8).

Abstract: A cutting insert includes a body comprising a superhard material or a superhard material and a cemented carbide, a hole through said body, and a preformed hole inlay in said hole to allow securing of the insert to a holder. The method of making same is also disclosed.

Abstract: 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.

Abstract: A rotary cutter for a rotary cutting apparatus. The rotary cutter includes a shaft and a mantle having at least one cutting member. The shaft is non-rotatable, and the mantle is rotatably mounted to the shaft and can be removed therefrom in an axial direction. The shaft is adapted to be rigidly mounted in a frame part, wherein the mantle is rotatably arranged relative to the shaft. The shaft may be in the form of a single piece, or a pair of axially spaced shaft portions.

Abstract: The present invention relates to a cutting insert particularly for turning of stainless steel comprising a cemented carbide substrate and a post-treated coating with a substrate of cemented carbide having a composition of from about 5.0 to less than about 8.0 wt % Co, from about 3.0 to about 8.0 wt % cubic carbides of the metals Ti, Ta and Nb with a Ti/(Ti+Ta+Nb) ratio of from about 0.05 to about 0.3 and balance tungsten carbide (WC) having a grain size of from about 1.5 to about 3.5 ?m in the as-sintered state. Further, the substrate has a surface zone of from about 5 to about 30 ?m characterized by an enrichment of binder phase and a depletion of cubic carbides, and a coating having a first, innermost layer system of one or several layers of TiCxNyOz with x+y+z?1 with a total thickness of from about 0.7 to about 5.

Abstract: A method of crushing material includes the steps of feeding a first flow of material to be crushed to a rotor rotating around a vertical axis, the rotor accelerating the first flow of material towards an impact wall section, and feeding a second flow of material to be crushed into the path of the accelerated first flow of material. The second flow of material is fed in a direction having a substantially tangential component in relation to the rotor, such that the second flow of material will have a substantially tangential component of movement in relation to the rotor when reaching the path of the first flow of material. A crusher is adapted to feed the second flow of material such that it will have a substantially tangential component of movement in relation to the rotor when reaching the path of the first flow of material.

Abstract: A distributor plate adapted to be releasably mounted on a horizontal lower disc of a rotor of a vertical shaft impact crusher. The rotor has an opening for the intake of material to be crushed and at least one outflow opening for material leaving the rotor. The distributor plate is an equilateral polygon as seen from above.

Abstract: A rotor of a vertical shaft impact crusher includes a vertical rotor wall segment having a first wall portion being substantially tangential in relation to the rotor and a second wall portion being angled in relation to the first wall portion. A tip holder for mounting at an outflow opening of such a rotor includes a holding part for holding a wear tip. A fastening mechanism is attached to the holding part. The fastening mechanism is adapted to extend along the first wall portion and through the second wall portion from one side thereof. A fixing mechanism is detachably fixable to the fastening mechanism at the other side of the second wall portion.

Abstract: A holding member for holding a horizontal wear plate in position on a rotor for a vertical shaft impact crusher. The holding member includes a holding part for holding the wear plate and a fixing mechanism for releasably fixing the holding member to a vertical wall segment of the rotor such that the wear plate bears against a first side of the wall segment.

Abstract: A high temperature corrosion resistant stainless steel having a composition (by weight) of: C?0.2%, but more than zero, N?0.1% but more than zero, O?0.1% but more than zero, Si?0.4% but more than zero, Al<0.5% but more than zero, Mn?0.5% but more than zero, Cr 20 to 25%, Ni?2.0% but more than zero, Zr+Hf 0.01 to 0.1%, Ti?0.5% but more than zero, Mo+W?2.5% but more than zero, Nb+Ta?1.25% but more than zero, V?0.5% but more than zero, and balance of Fe and naturally occurring impurities and not more than 0.010% of S impurity. This steel is particularly suitable for the manufacturing of interconnects in solid oxide fuel cells.

Abstract: A crusher includes a replaceable first crushing member having a first crusher surface and a replaceable second crushing member having a second crusher surface. The co-operation of the crusher surfaces is defined by at least one crusher setting parameter. From measurements of a quality parameter, which relates to the nature of the crushed material, on at least two different occasions during the service life of a set of replaceable first and second crushing members and on each occasion for at least two different settings of the crusher setting parameter, a control function can be determined that describes a value, of the at least one crusher setting parameter, which on a given occasion gives a crushed material the quality parameter of which is substantially optimal.

Abstract: A vibrating screen for conducting material in a longitudinal direction while screening the material comprises a screening deck, exchangeable modular screening media, and an adapter arrangement for mounting the screening media on the deck. The screening deck includes transverse carriers oriented transversely of the longitudinal direction. The adapter arrangement comprises longitudinal support carriers arranged substantially in the longitudinal direction, and connecting elements oriented transversely of the longitudinal direction for interconnecting the support carriers and connecting the interconnected support carriers on the transverse carriers.