SLEEVE INNER SURFACE INDUCTION HEATER Russian patent published in 2010 - IPC H05B6/38 

FIELD: heating.

SUBSTANCE: invention relates to induction teat treatment of metal products. Proposed heater comprises rod inductor representing a water-cooled conducting tube connected, via split clamps and buses, with high-frequency current source and arranged inside heated sleeve with a gap. Proposed heater differs from known designs in that it incorporates detachable conducting barrel with conducting covers arranged aligned with rod inductor tube and enveloping aforesaid heated sleeve. Note here that one of said covers is made integral with said barrel, while the other one has a galvanic contact with said barrel. Note also that one of the covers is short-circuited to rod inductor tube and the other one features a circular gap thereabout.

EFFECT: uniform heating.

1 dwg