Abstract: The invention pertains to a soldering device (01) for soldering work pieces, wherein said soldering device (01) features at least one heating element (06), at least two heating current supply lines (07, 08) and at least one sensor (05, 06, 07, 08, 09, 10, 11, 13), wherein the heating element can be supplied with a heating current via the heating current supply lines (07, 08), wherein the soldering device (01) features a computer unit (12), and wherein the sensor (05, 06, 07, 08, 09, 10, 11, 13) is connected to the computer unit (12).

Abstract: A centrifugal pot spinning process for spinning yarn of classical character is provided in which either in one stage a fully twisted yarn or in a first stage a partially twisted yarn is spun in a centrifuge (6) and removed from it and, in the case of the partially twisted yarn, the remaining twist is imparted to the yarn in a second stage upon removal while being wound up. A centrifuge (6), a drawing frame (1), a piecing mechanism (2), and a traversing thread guide tube (4) are used. The centrifuge (6) rotates in a space (7) under reduced pressure (pu). Normal air pressure (pn) prevails inside the centrifuge (6) and spinning is carried out under normal air pressure (pn) inside the centrifuge. The reduced pressure (pu) is adjusted in such a way that, during rotation of the centrifuge (6), essentially only the bearing friction of the centrifuge still occurs but the air friction of the outer wall of the centrifuge (6, 35, 45, 53) against the housing (5') is largely suppressed.