Abstract: An Al—Mg-based or Al—Mg—Si-based or Al—Zn-based or Al—Si-based starting material in the form of a powder or wire for an additive manufacturing process, the use thereof, and an additive manufacturing process using this starting material are disclosed.

Abstract: An Al—Mg-based or Al—Mg—Si-based or Al—Zn-based or Al—Si-based starting material in the form of a powder or wire for an additive manufacturing process, the use thereof, and an additive manufacturing process using this starting material are disclosed.

Abstract: The invention relates to a system for treating a refractory batch, a use of the system, a method for treating a refractory batch, and a use of a mould.

Abstract: A hardenable Al—Mg—Si-based aluminum alloy is shown. In order to provide a recycling-friendly, storage-stable and particularly thermosetting aluminum alloy, it is proposed that this aluminum alloy should contain from 0.6 to 1% by weight of magnesium (Mg), from 0.2 to 0.7% by weight of silicon (Si), from 0.16 to 0.7% by weight of iron (Fe), from 0.05 to 0.4% by weight of copper (Cu), a maximum of 0.15% by weight of manganese (Mn), a maximum of 0.35% by weight of chromium (Cr), a maximum of 0.2% by weight of zirconium (Zr), a maximum of 0.25% by weight of zinc (Zn), a maximum of 0.15% by weight of titanium (Ti), 0.005 to 0.075% by weight of tin (Sn) and/or indium (In), and the remainder aluminum and production-related unavoidable impurities, wherein the ratio of the weight percentages of Si/Fe is less than 2.5 and the content of Si is determined according to the equation wt. % Si=A+[0.3*(wt. % Fe)], with the parameter A being in the range of 0.17 to 0.4% by weight.

Abstract: The invention relates to a ceramic refractory stopper (a stopper device) for controlling a flow of molten metal at an outlet opening of a metallurgical vessel, such as a tundish.

Abstract: The invention relates to a ceramic refractory stopper (a stopper device) for controlling a flow of molten metal at an outlet opening of a metallurgical vessel, such as a tundish.

Abstract: The invention relates to a ceramic refractory stopper (a stopper device) for controlling a flow of molten metal at an outlet opening of a metallurgical vessel, such as a tundish.

Abstract: The invention relates to a ceramic refractory stopper (a stopper device) for controlling a flow of molten metal at an outlet opening of a metallurgical vessel, such as a tundish.

Abstract: A method of increasing the service life of a tool and a tool coated according to the method comprises a wear resist of MeX, where Me is a metal including at least 50% group IVb metal, and X is either carbon, oxygen, nitrogen or boron with at least 50% oxygen. An intermediate layer between the substrate of the tool and the wear resistent layer is made of CrX and has a thickness of 5 nm.ltoreq.d.ltoreq.1000 nm, where d is the thickness.

Abstract: In order to heat-up a commodity to be heated or a substrate to be coated, uniformly in a vacuum chamber or in a recipient, by means of a gas discharge or low voltage arc discharge, at least one locally variable and/or displaceable magnetic field is maintained in the vacuum chamber or in the recipient at least during the heating up step. Preferably, at least two magnet fields are maintained which partially overlap and which alternatingly are operated stronger or weaker, to therewith locally influence the current density in the vacuum chamber or recipient, in order to produce along the substrate or the commodity to be heated, alternatingly a stronger or less strong heating.

Abstract: During the guiding and centering of an electron beam by means of a magnet field arranged orthogonally to the axis of the electron beam in a vacuum coating plant the signals which are decisive regarding the configuration and control of the magnet field or its axis of rotation, resp., are supplied by a detecting of the burning spot of the electron beam on the surface of the evaporation source by means of a video system, i.e. by means of a video camera resp. and a corresponding picture evaluated.

Abstract: The invention relates to a clip applicator for ligature clips, particularly for laparoscopic operations, comprising a tubular rod system, at whose one end is provided a two-part, scissor-like handle and at whose opposite end are provided jaws for receiving a clip, in which one handle part of the scissor-like handle is fixed to one part of the rod system, while the other handle part brings about about a closure of the jaws if the two handle parts are moved relative to one another, against spring tension, about their pivot axis located below and at right angles to the longitudinal axis of the tubular rod system, characterized in that in the tubular rod system (2) is movably arranged a restoring wire (30), whose front or proximal end (32) is constructed in hook-like manner and in the inoperative position is positioned with an upwardly open hook alongside the jaws (24, 26), while the rear or distal end (34) of the restoring wire (30) is connected in the vicinity of the handle (4) to an operating lever (36) projec

Abstract: A method and apparatus centers of an electron beam (3) in a surface coating installation with movable substrates. A rotating magnetic field is superimposed on a main magnetic field which serves to guide and focus the electron beam. A focal spot of the electron beam is thus caused to rotate about a theoretical axis (17) of the electron beam (3) and the beam sweeps the entire surface (32) of a raw material source (4). Changes in the consumption of reactive gas supplied to the installation are measured by a flowmeter (21). Through a control unit (20) connected to the flowmeter, stationary magnetic fields are superimposed on the rotating magnetic field and the electron beam (3) is aimed at the center of the surface (32) of the raw material source (4) as a function of variations in the reactive gas flow.

Abstract: A method of depositing hard, wear-resistant coatings on workpieces and utility articles by evaporating a metal such as titanium in a reactive atmosphere. To make the coating hard as far as possible, wear resistant, and less susceptible to oxidation, the deposition is effected in an atmosphere containing nitrogen, oxygen and carbon, with the atomic number proportion of O to C ranging between 0.5 and 1.5. An evaporation by means of a low voltage arc discharge and the use of CO as the residual gas atmosphere are particularly advisable.

Abstract: An apparatus for treating photopolymer printing plates, which have already been exposed, with liquid media, in which the plate, mounted on a vertically movable holder, can be moved up and down between an upper loading and unloading chamber and a lower treatment chamber, separated from the upper chamber by a partially open partition, and in which upper and lower rim elements of the plate holder seal the aperture in the partition in a vapor-tight manner when the plate holder is in its terminal positions.

Abstract: A process for producing flexible formed explosive charges includes the steps of admixing at least one elastomer which exhibits an elongation of at least 800% and a tear strength of between 50 and 350 kp./cm.sup.2, at least one high-brisance explosive component and at least one plasticizer that has a melting point of less than -20.degree. C. and that does not substantially evaporate up to a temperature of 90.degree. C. and thereafter forming the resulting admixture into a shaped or formed explosive charge. The high-brisance explosive component has a detonating velocity of at least 6000 m/sec.

Abstract: A process for the production of bilaterally corrugated plastic sheets by extruding a plastic synthetic resin composition, preferably soft PVC, from a slotted nozzle fashioned in a double comb-like shape, stretching the sheet in the longitudinal direction of the ribs during the drawing-off process and passing the sheet through a cooled glazing or smoothing calender. Also disclosed are various sheets produced by the above-process as well as methods for joining the same together.

Abstract: To isolate shock deburring valve units in a shock deburring system and prevent back-flash or backfire during operation of the deburring system, and absorb thermal and pressure shocks exerted against the deburring valves--which, in operation, are closed--at least one of the valves is separated from the mixing chamber where the explosive force arises by a connecting line which is long enough and encloses therein a volume of the respective gas which is such that under the pressure due to an explosion in the mixing chamber, the gas can compress within the respective connecting line to thermally isolate the valve from the chamber and provide a compressible thermally isolating shock cushion for the respective valve to protect the valve against thermal damage and shock.

Abstract: The valve for use in thermal shock deburring apparatus, in which oxygen and hydrogen are combined under explosive conditions, and which provides reliable shut-off of the respective gas component being supplied to an explosion jet chamber, and which prevents backfire or backflash, is enclosed in a housing formed with a bore, preferably cylindrical, in which an insert sleeve is located; a resiliently deformable sealing material such as, for example, Teflon, is located between a portion of the bore and the sleeve.