CS248261B1 - Shaft electric furnace for nitriding - Google Patents

Abstract

The solution concerns furnaces for thermochemical processing. The essence of the solution is a furnace for nitriding in a magnetic field, designed in such a way that the furnace body is a closed magnetic circuit and four electromagnets with pole pieces facing the muffle are placed between the muffle and the body, with the electromagnet axes intersecting at a right angle in the middle of the muffle. This allows controlling the parameters of the magnetic field, intensifying the process and increasing the quality of nitriding.

Description

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ΦΟΡΜΥΠΑ H3OEPETEHHH

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Claims (2)

248 261 PftEDMET OF THE INVENTION A shaft electric furnace for nitriding consisting of a body having a lining with heaters, a muffle with a removable lid and a gas supply system characterized in that the body is filled with a closed magnetic circuit and between the muffle to control the magnetic field parameters, process intensification and increase the quality of the nitriding. and four electromagnets are mounted with the body with the pole pieces of the inverted muffle, the axes of the solenoid intersecting in the center-shell at a right angle. 2. An electric furnace according to claim 1, characterized in that the heating coil is bifilar.