Device for the surface hardening of workpieces of different lengths
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United States of America Patent
Stats
-
Dec 22, 1992
Grant Date -
N/A
app pub date -
Aug 20, 1990
filing date -
Dec 23, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The invention relates to a device for hardening the surface of workpieces of different lengths, having: two clamping heads and a rotary drive, for clamping and rotating the workpiece to be hardened; inductors for the electroinductive heating of the workpiece surface; and a quenching spray. The characterizing feature of the invention is that disposed on opposite sides of the workpiece with provision for displacement in relation to one another in the direction of the workpiece axis for adaptation to the particular workpiece length are two line inductors (1a, 1b), each having two parallel conductor portions (2a, 2b) and end portions (5, 6) which are bent at right angles and an end portion (6a, 6b) of each of which extends arcuately or polygonally, more particularly at right angles, over the workpiece (4).
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