Abstract: Disclosed is a high strength steel sheet having excellent hydrogen embrittlement resistance. The steel sheet has a tensile strength of 1180 MPa or more, and satisfies the following conditions: with respect to an entire metallographic structure thereof, bainite, bainitic ferrite and tempered martensite account for 85 area % or more in total; retained austenite accounts for 1 area % or more; and fresh martensite accounts for 5 area % or less (including 0 area %).

Abstract: A process for the production of fat-liquored, tanned leather or pelt is provided. The process comprises the steps of fat-liquoring and tanning, wherein an animal hide, skin or pelt is fat-liquored with a substituted acylaminopolyorganosiloxane (A) in the presence of a surfactant or surfactant mixture (B), which is an anionic or nonionic surfactant or mixture of anionic or/and non-ionic surfactants, before, during or/and after tanning, wherein the substituted acylaminopolyorganosiloxane (A) is a polyorganosiloxane containing substituted acylamino groups linked to silicon atoms of the polysiloxane skeleton via alkylene bridges or mono- or oligo-[alkylene-amino or alkylene-(substituted acyl)amino]-alkylene bridges. Also provided are tanned pelt or leather, certain substituted acylaminopolyorganosiloxanes (A?) and related processes and compositions.

Abstract: An explosion protection housing constructed according to an explosion protection requirement having a temperature control system. The temperature control system includes a temperature control device that includes a pipe coil thermally connected to at least one of the walls of the housing. Optionally, temperature control fluid is directed through the pipe coil by means of circulating pump in order to increase or decrease the temperature of the housing, depending upon the explosion protection requirements.

Abstract: A pressure-tight encapsulated housing (10) having a temperature control device (20) including a first heat exchanger unit (21) arranged in the interior of the housing (10) and a second heat exchanger unit (22) arranged outside of the housing (10) and which are connected to one another via a liquid cycle (23). The liquid cycle (23) includes a feed line (24) and a return line (25) each connected to the first heat exchanger unit (21) and which each fluidically connect to a passage channel (27) of a respective leadthrough unit (26) arranged in flameproof manner in a wall (13) of the housing (10) so that the passage channel (27) extends through the wall (13). The control device (20) further includes a liquid monitoring sensor (41) for generating a liquid monitoring signal (F) characteristic of the filling of the passage channels (27) with liquid, and a monitoring unit (40) for receiving signals generated by the liquid monitoring sensor (41).

Abstract: The invention relates to a method for producing aqueous polyurethane-polyurea dispersions, where A) first a polyurethane prepolymer containing NCO groups is produced by reacting A1) polyisocyanates with A2) polymeric polyols and/or polyamines having number-average molecular weights of more than 400 to 8,000 g/mol, A3) possibly low-molecular-weight compounds having number-average molecular weights of 17-400 g/mol selected from the group comprising mono- and polyalcohols, mono- and polyamines, and amino alcohols, A4) isocyanate-reactive, ionically or potentially ionically hydrophilic compounds and/or isocyanate-reactive non-ionically hydrophilic compounds, A5) isocyanate-reactive compounds, which contain at least one C7 to C24 alkyl group or C7 to C24 alkenyl group, and A6) isocyanate-reactive compounds, which contain at least one polysiloxane group, and B); the NCO groups of the prepolymer that are not yet free are reacted with isocyanate-reactive monoamines, polyamines, hydrazine, and/or hydrazides, dimension

Abstract: An explosion-proof housing (10) with a pressure release device (11) and method of manufacture. The pressure release device (11) including a porous body (12) having a gas-permeable porous central area (13) and a surrounding edge zone (22). A peripheral surface (21) of the porous body (12) is arranged in the edge zone (22). The porosity and/or the pore size of the porous body is specified or changed at the peripheral surface (21), or at the edge zone (22), such that the penetration of liquid casting material (G) into the central area (13) of the porous body (12) is prevented across the peripheral surface (21) or the edge zone (22). The edge zone (22) thus forms a barrier (B) for the casting material (G) which enables the porous body (12) to be inserted in a casting mold (31) and insert molded with casting material (G) in production of an accommodating part (25) of the housing.

Abstract: A method and an apparatus for the non-contact support of a sensor and/or actuator device with respect to a substrate (2) which reflects sound at least in regions, in particular sheet metal, has a moving suspension device, a sensor and/or actuator device which is mechanically connected to the suspension device, and a positioning device which is mechanically connected to the suspension device and which has at least one non-contact bearing for the non-contact support of the sensor and/or actuator device with respect to the substrate. In order to ensure accurate positioning with respect to the substrate, the positioning device has at least one sonotrode for emitting an ultrasonic field which, between the sonotrode and the substrate, forms acoustic levitation waves for the non-contact support of the sensor and/or actuator device with respect to the substrate by a non-contact bearing which is designed as an ultrasonic bearing.

Abstract: An actuation device (11) for an explosion-proof housing (10) in compliance with the ignition protection category “pressure-proof encapsulation”. The actuation device (11) has an actuation unit (15) with a manually actuatable actuation element (16), and an actuation device (11) having a switch unit (14) with a switch element (14) for switching an associated electrical contact. The actuation unit (15) is located outside the housing (10), whereas the switch unit (13) is located in the interior space (12) of the housing (10). An adapter device (22) mechanically connects the actuation unit (15) and the switch unit (13) and comprises at least one adapter plunger (38) that is supported so as to be movable in axial direction (A) in order to transmit the movement of the actuation element (16) via the adapter plunger (38) to the switch element (14). The adapter plunger (38) is arranged in an adapter channel (39) so as to be axially shiftable while forming a gap (53) that is resistant to ignition transmission.

Abstract: A lance and a method determine reaction data of the course of a reaction, in which a reaction gas is top-blown by at least one lance onto a metallic melt in a metallurgical vessel and measured data are determined in this way, reaction data for the course of the reaction are determined as a function of these, where the lance for determining measured data blows out a gas which is conveyed separately from the reaction gas through at least one outlet opening of at least one measuring conduit. The lance for determining measured data blows out the gas which is conveyed separately from the reaction gas laterally through at least one outlet opening of at least one measuring conduit and the internal pressure of at least one gas bubble of this gas formed at this outlet opening of the respective measuring conduit is measured.

Abstract: A housing (10) which has a first part (14) with a first wall (22) having an outer wall surface (28) and a second part (18) with a second wall (24) having an inner wall surface (30). The wall surfaces can have for example a cylindrical casing shape at least in some sections. Portions of the first wall (22) and the second wall (24) overlap in an overlap region (26). The first wall (22) and the second wall (24) are connected along the circumference of the wall surfaces (28, 30) by means of a rotational friction welding seam (32) arranged in the overlap region (26). The rotational friction welding seam (32) has a compact zone (48) with a first elastic modulus and a mixing zone (44) with a different second elastic modulus.

Abstract: A method for heat treating a manganese steel product whose alloy comprises: a carbon fraction (C) between 0.09 and 0.15 wt. %, and a manganese fraction (Mn) in the range of 3.5 wt. %?Mn?4.9 wt. %, the method comprising: performing a first annealing process (S4.1) with the substeps heating (E1) the steel product to a first holding temperature (T1), which lies above 780° C., holding (H1) the steel product during a first time period (?1) at the first holding temperature (T1), cooling (A1) the steel product, performing a second annealing process (S4.2) with the substeps heating (E2) the steel product to a holding temperature (T2), which lies above 630° C. and below 660° C., holding (H2) the steel product during a second time period (?2) at the holding temperature (T2), cooling (A2) the steel product.

Abstract: A method of producing shaped articles made from single-sidedly or double-sidedly galvanized steel sheet, starting from galvanized steel strip, at least one of the steps of the method being a transport operation, and in which, for protection from black-spot corrosion, a corrosion preventive oil is applied which comprises at least one phosphoric acid polyoxyalkylene ester.

Abstract: The invention relates to a method for producing a semi-finished product or component (2), in which a hardenable coating (6, 17) with fiber-reinforced plastic is applied to a metal carrier (3), particularly a metal sheet (4), and the coated metal carrier (3) is formed, particularly deep-drawn or bent, in a subsequent step to produce a semi-finished product or component (2). According to the invention, for an improved and cost-effective method, the metal carrier (3) is coated at most only in certain regions and is only subjected to the forming when the coating thereof (6, 17) has hardened to produce at least a block-resistant surface (12), the coated metal carrier (3) being formed such that the plastic changes in shape follow forming radii (21) and are produced substantially, preferably exclusively, in the coating-free regions (15) of the metal carrier.

Abstract: In a method for producing a structural part from an iron-manganese-stell sheet (1), a sheet-metal workpiece (2) is cold-formed in a forming die (3). The formed sheet-metal workpiece is heated to a temperature between 500° C. and 700° C. (4) and calibrated in a calibrating die (5).

Abstract: Exemplary methods of making an applique are disclosed. Exemplary methods may include providing a fabric layer, and transferring a graphic onto the fabric layer, the graphic having a plurality of registration marks configured to align an embroidery contour. The methods may further include creating an adjusted embroidery contour using at least the registration marks, and applying an embroidery along the adjusted embroidery contour.