Abstract: A method and arrangement for producing a three-dimensional material composite using an expansion body includes at least two metal bodies having surface regions resting loosely against one another. The composite is heated to a target temperature and the surface regions are pressed against one another so that an integral connection is established. At least one expansion cavity having a predefined initial volume is arranged in one of the metal bodies or in an additional expansion body resting against one of the metal bodies in such a manner that when the expansion cavity expands, the surface regions to be connected are pressed against one another. A predefined quantity of at least one substance which is gaseous at least at a target temperature is hermetically enclosed in the expansion cavity before the target temperature is reached.

Abstract: A method and arrangement for producing a three-dimensional material composite using an expansion body includes at least two metal bodies having surface regions resting loosely against one another. The composite is heated to a target temperature and the surface regions are pressed against one another so that an integral connection is established. At least one expansion cavity having a predefined initial volume is arranged in one of the metal bodies or in an additional expansion body resting against one of the metal bodies in such a manner that when the expansion cavity expands, the surface regions to be connected are pressed against one another. A predefined quantity of at least one substance which is gaseous at least at a target temperature is hermetically enclosed in the expansion cavity before the target temperature is reached.

Abstract: The invention relates to a hydrostatic axial piston engine (1), having a housing (2), which with two transverse walls (18a, 18b) and a peripheral wall (2c) connecting these longitudinally to one another surrounds an interior (3), a driving shaft (19), which extends longitudinally in the housing (2) and is mounted rotatably in the housing (2), and a swash plate (4), which is mounted longitudinally adjacent to the cylinder drum (5) in the housing (2) and supported against which in an articulated manner are pistons (9) that are reciprocably mounted in approximately longitudinally extending piston holes (6) in the cylinder drum (5).

Abstract: A safety device for an automatically operating installation determines at least one movement variable of a moving installation part in a safety-related manner. The safety device includes an acceleration sensor and an evaluation unit. The acceleration sensor is adapted to be coupled to the moving installation part in order to detect any acceleration of the moving installation part. The evaluation unit determines a movement velocity and/or a movement travel of the installation part on the basis of the acceleration.

Abstract: A safety device for an automatically operating installation determines at least one movement variable of a moving installation part in a safety-related manner. The safety device includes an acceleration sensor and an evaluation unit. The acceleration sensor is adapted to be coupled to the moving installation part in order to detect any acceleration of the moving installation part. The evaluation unit determines a movement velocity and/or a movement travel of the installation part on the basis of the acceleration.

Abstract: A steel mold has a mold body with a molding surface and heat-conducting members with a first and a second end embedded in the mold body. The heat-conducting members have a length and a thickness and are made of a material having a melting point above 950.degree. C. The heat-conducting members are spaced at a distance from the molding surface wherein a ratio of the thickness to the distance is 1:1 to 1:3 and wherein the length is 3 to 10 times the thickness. A cooling system is embedded within the mold body whereby one of the ends of the heat conducting members is connected to the cooling system.

Abstract: The invention is directed to an apparatus for pulling a plurality of fuel ds out of a fuel element structure and has a gripping device which is capable of clamping the fuel rods. To reliably pull the fuel rods from an irradiated nuclear reactor fuel element, the apparatus includes an upper guide rod and a lower tension rod which lie horizontally and are arranged one above the other. The rods extend through a plurality of clamping plates in a direction perpendicular to the latter. The clamping plates are mounted so as to be parallel to each other and spacers are arranged between each two mutually adjacent ones of the clamping plates. The spacers are arranged on both rods with the width of the spacers on the lower rod beign slightly less than the diameter of a fuel rod. The clamping plates are pressable together by means of a tensioning device. The apparatus of the invention enables the gripping device to be placed on the fuel element in a simple manner.