High-frequency induction surface hardening working for the steel

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  Interm.  Induction surface hardening HDTV inner ring chamfer inductor with ferrite magnetic core by rotating the valve
induction hardening HDTV rotating bodies made with the rotation of hardened parts. Long parts hardened inductor in series with the movement along the axis of the member. Cooling the workpiece immediately after the heating is performed by jets of water or a liquid composition from a specially selected spreera pressure.

Interm.  Serial tempering valve annular portion HDTV
Serial tempering valve annular area with access to the quenching zone collar

 

Quenching subjected chamfer hole 50 mm in diameter located at a depth of 30 mm and two annular portions, 30 mm wide on the external surface of the valve.

Tempering Circle produced a ring inductor with ferrite magnetic core by rotating the valve. At the same time heats the entire quenching surface, and the rotation is necessary to ensure uniformity of heating.

Interm.  Sequential induction hardening HDTV ring portion valve opening area hardening on the collar
Serial tempering valve annular portion

Quenching ring portions on the outer surface of the valve is made flat inductor with ferrite magnetic core rotating valve. In this case, heat a small area under the inductor and heating zone is moved by rotating parts. There is a consistent hardening annular surface width of 30 mm per rotation parts.

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