METHOD AND DEVICE FOR CONTROLLED INFLUENCING OF THE INTERNAL AND / OR EXTERNAL DIAMETER IN THE COOLING PROCESS OF WORKPIECES TO BE HARDENED.

摘要

The invention relates to a method and a device for controlling the inner and/or outer diameter of articles when they harden during their cooling stage, the method being characterised in that at least one vertically movable piston, designed conically in the outer circumference and/or inner diameter, enters into the inner and/or outer diameter of an article or engages around it and thereby controls the dimensional characteristics and centricity of the article to be hardened. The device for carrying out this method is characterised in that it comprises at least one vertically movable piston, which can be subjected to an adjustable pressure and is designed conically in the outer circumference and/or inner diameter, as well as an upper die and a lower die. IMAGE