DEVICE FOR HEAT AND PRESSURE TREATMENT Russian patent published in 2018 - IPC C21D9/28 

FIELD: machine engineering.

SUBSTANCE: device contains stocks made with an expansion ratio greater than that of the shaft, at both ends of which the supports and the external heating element are located. The upper support has two flats on the guide part, the lower support has the through groove. The upper support rests on the upper end of the stocks through two bevelled profile washers, in the upper support perpendicular to its axis there is an axis on which the cylindrical rod with thread is supported through a demountable spherical shell, the stocks along the perimeter has short grooves performed on spiral lines, repeated with equal pitch along the perimeter, a heat-insulating pipe is installed inside the stocks, with an internal heating element inside it, which is executed with a possibility of installation around the treated shaft.

EFFECT: improving the quality of heat and pressure treatment of the shaft.

5 dwg