Abstract: The linear motor pump for a wave soldering apparatus comprises in accordance with the invention several pumping channels arranged substantially parallel to each other and separate from each other. It includes preferably a multiply segmented stator. Each stator segment has one pumping channel allocated to same. By means of this a homogeneous pumping performance i.e. homogeneous pumping pressure distribution over a practically arbitrary width is achieved, which leads to a homogeneous solder wave. By the arrangement of the pumping channels and the design of the stator in accordance with the invention a turbulent whirling of the solder is made practically impossible.

Abstract: The invention concerns a wave soldering device with a heated tub that accommodates molten solder, which is suctioned out of the tub by at least one pump and forced back into the tub through at least one nozzle to create at least one wave that falls back into the tub, with a layer of oil hat covers the surface of the solder in the tub, with an oil reservoir and oil cleaner, with a tub lip associated with the oil reservoir, and with an oil pump that communicates at the vacuum end with the oil reservoir and at the pressure end with the tub through an oil supply and associated heat exchanger.

Abstract: A soldering installation (1) is provided for run-through and shuttle operation, in particular for the run-through soldering of printed circuit boards on a soldering machine. It is equipped with a feeder mechanism (4) for the transport of soldering frames (18) to which printed circuit boards are fixed. The feeder mechanism (4) has a travel distance of at least 2 frames. In the first half of the feeder mechanism (4) is a device (31) for the holding of a frame (18) as well as an activator (32) for the release of the frame (18). A transport mechanism, (5) running synchronously with the feeder mechanism (4) bridges the soldering machine. An electric motor (37) with adjustable speed and reversibility drives these parts (4 and 5).

Abstract: A plant for casting a continuous slab which comprises a slabbing train formed by a plurality of opposed rolls for guiding the slab therebetween. At least one of the rolls of the slabbing train is a deflection controlled roll having a roll shell rotatably mounted about a fixed beam and a plurality of hydraulic piston support elements disposed along the roll between the roll shell and the beam for exerting forces therebetween. The bearing surfaces of the support elements have recesses which are supplied with water under pressure. The water flowing from the recesses cools the roll shell and forms a hydrostatic cushion between the bearing surfaces of the support elements and the interior of the shell on which the roll shell is supported without direct contact with the support elements.