Application and schemes of induction preliminary heating in magnetic-pulse treatment of metals

The features of the processes magnetic-pulse processing metals in traditional schemes technological modern industrial production are highlighted. work is a brief description state, application, and also proposed induction pre-heating metals. A method for increasing efficiency performing specified operations considered. use preheating leads to significant improvement quality while reducing energy consumption. New directions noted, implying transformation natural repulsive forces metal processed object into attraction with decrease operating frequencies acting fields. makes it possible not only go from repulsion attraction, but working ferromagnetic non-ferromagnetic ones. For example, becomes attract aluminum blanks. Examples heating blanks industry given. Various devices used these operations, offered on market, by both domestic foreign manufacturers, physics Lenz-Joule heat release described, result which conductors Foucault currents external electromagnetic field instrument. Schemes practical implementation preliminary during blanks, allowing autonomous exciting eddy stationary connection, same purpose, an additional source electricity. As work, possibility plasticity when workpiece, as well limitations described technology associated increase active resistance noted.