Abstract: Seamless tubing of a nonferrous material is made by continuously and concomitantly advancing a tubular workpiece of the nonferrous material along an axis through a rolling station, radially squeezing the workpiece in the station between external rolls and an internal mandrel to radially reduce a wall thickness of the workpiece and increase an axial length of the workpiece so that the workpiece is heated, and spraying a liquid coolant against the workpiece in and upstream of the station to maintain the workpiece at a temperature below a recrystallization temperature of the material.

Abstract: Seamless tubing of a nonferrous material is made by continuously and concomitantly advancing a tubular workpiece of the nonferrous material along an axis through a rolling station, radially squeezing the workpiece in the station between external rolls and an internal mandrel to radially reduce a wall thickness of the workpiece and increase an axial length of the workpiece so that the workpiece is heated, and spraying a liquid coolant against the workpiece in and upstream of the station to maintain the workpiece at a temperature below a recrystallization temperature of the material.

Abstract: A process for producing welded pipes, from Cu and Cu alloys in a combined production line, having a casting installation for raw materials, a hot-rolling mill, a pipe-shaping and welding section and a drawing device for the welded pipe. The process has the sequence of the following process steps: a. casting of a virtually endless initial strip, b. hot-rolling of the cast initial strip at a rolling speed=casting speed×extension, to form an intermediate strip, c. cooling of the intermediate strip to ≦100° C. to RT and descaling of the surface of the intermediate strip, d. cold-rolling of the intermediate strip to form a strip, e. coiling of the untrimmed strip to form coils of predetermined weights, the steps a to e being carried out as an in-line process followed, directly or after interim storage, by the following further operating steps, f. unwinding and shaping of the strip to form a longitudinal seam pipe, g. welding of the longitudinal seam to form a longitudinal seam pipe, h.

Abstract: A continuous casting installation with a heatable, pressure-regulated multiple-chamber furnace and a furnace-dependent mold for casting a molten metal. The pressure ratios in the pressure chamber of the furnace are regulated in accordance with its degree of fullness by a pressure generating device in order to maintain a constant metallostatic pressure in the mold chamber of the furnace. In order to improve the reliability with which the filling state is determined, the mold is fitted statically to a furnace-independent supporting frame and the multiple-chamber furnace is dynamically supported on a weighing device. Additionally, the mold is connected with the multiple-chamber furnace in a frictional engagement via a compressible seal.

Abstract: A process and a device for threading elongated tubes into a drawing apparatus for cross-sectional reduction in at least one drawing step by means of at least two successive drawing units that grasp the workpiece at the outer circumference with revolving driving chains which, after the drawing point formed at the start of the tube is threaded in, draw the workpiece continuously through a drawing ring which is arranged in front of each drawing unit. The device includes at least two chain-type drawing machines 1, 2, 3 which are arranged one behind the other with driving chains, 1a to 3a and 1b to 3b, which move apart radially and with a gripper 8 arranged behind every chain-type drawing machine 1, 2, 3 for grasping the drawing point 6 which is formed at the beginning of the tube.

Abstract: A process and an apparatus for strand-casting near to final size cast formats from non-ferrous metals for the purpose of further cold working, especially strips, bars or tubes of copper or copper alloys. The process includes continuously casting the melt in a vertical mold to form a vertical strand, withdrawing the solidified strand from the mold in a centrally guided manner and directly threading into a surface treatment machine, removing the surface of the strand, laterally cutting the surface-finished strand in a predetermined manner, and removing the cut strand pieces from the machine. The machine for carrying out the process has a base frame which is connected to a foundation and on which a withdrawal device, a surface treatment unit, a cross-cutting device, and a conveying device are provided in line.

Abstract: Horizontal casting apparatus which includes a composite sleeve or ring at the entrance to the mould comprising a graphite inner portion and an insulating outer portion. The apparatus can optionally have an inert gas shield around the composite ring to protect the graphite component thereof against oxidation.

Abstract: Horizontal casting apparatus which includes a composite sleeve or ring at the entrance to the mould comprising a graphite inner portion and an insulating outer portion. The apparatus can optionally have an inert gas shield around the composite ring to protect the graphite component thereof against oxidation.

Abstract: In a method for oscillating an inherently rigid horizontal continuous casting mold for metals, by subjecting the mold to sinusoidally oscillating horizontal stroke movements alternately in the casting direction and in the direction opposite to the casting direction, while casting is advanced in the casting direction and is removed continuously, the mold is oscillated at a frequency, f, of at least about 100 cycles/minute, and the oscillation frequency, f, and mold stroke, H, are given values related to casting rate, V.sub.0, such that the average value of 2 fH/V.sub.0 is at least 0.64 and the displacement of the mold relative to the casting during each movement of the mold in the casting direction is no greater than 1 mm.

Abstract: A device for handling semi-continuously vertically cast rectangular strands, especially of aluminum and aluminum alloys. The strands are simultaneously adjacent to each other lowered by means of a downwardly movable casting table, brought into engagement with a supporting member, and by a pivoting movement of the dummy bars and of the supporting member which are operatively connected to the casting table are moved into an at least nearly horizontal positon with regard to the casting table. The above mentioned pivoting movement is coupled to the upward movement of the casting table. The strands are cast in such a way that one of their narrow sides is located opposite the supporting member. During the upward movement of the casting table, the supporting member with the strands one narrow side of which engages the supporting member are pivoted about a pivot axis which is eccentrically located with regard to the longitudinal plane of symmetry of the casting table.

Abstract: A continuous mold with a mold chamber, preferably a rectangular mold chamber, for continuously casting metals, especially copper and copper alloys, which includes a one piece or more piece graphite block and also includes cooling pipes forming components of a cooling circuit and being frictionally connected to the graphite block for improving the heat transfer to the mold chamber of the graphite block. The cooling circuit is structurally separate from the graphite block, and the cooling pipes yieldably engage the outer surface of the graphite block.