DEVICE FOR DETERMINING TEMPERATURE GRADIENT IN PROFILE WELDING AREA DURING BUTT RESISTANCE WELDING Russian patent published in 2017 - IPC B23K11/02 G01K7/02 

FIELD: metallurgy.

SUBSTANCE: device is intended for placement of forming knife of a jig plate in a channel and contains thermocouples and a pressure screw for pressing joints of thermocouples to part surface. The outer surface of a bushing made of electrically insulating material is identical to the shape of the channel of the jig plate forming knife, and the inner surface has vertical grooves. The metal bushing is spring-loaded relative to the pressure screw and the bushing made of electrically insulating material, and provided with a central opening and is mounted concentrically with the bushing made of electrically insulating material for reciprocating movement. Its projections are arranged in the vertical grooves of the bushing made of electrically insulating material. The pressure screw is provided with a longitudinal channel for receiving thermocouples therein. The thermocouples are connected to control means of the welding process. The joints thermocouples are arranged in one plane and fixed by epoxy resin in said central hole of the bushing.

EFFECT: invention provides high accuracy of observance of optimal heating parameters and improvement of weld quality.

4 dwg