Manufacturing method of electric heating type catalyst device, metal thin plate for electrode of electric heating type catalyst device, and electric heating type catalyst device

摘要

PROBLEM TO BE SOLVED: To improve the quality of an electrically heated catalyst device. SOLUTION: Each wiring portion 23 is used as a material of a metal electrode layer having a plurality of wiring portions 23 fixed on the surface of a surface electrode layer formed on the outer peripheral surface of the catalyst carrier and extending in the circumferential direction of the catalyst carrier. Has a first and second bases 22 and 31 spanned in between, and a terminal portion 24 and a false terminal portion 32 extending from the first and second base portions 22 and 31, respectively, and each wiring portion. A thin metal plate 30 having a narrow portion 33 having a narrower width than the other portions of the wiring portion 23 is used at the end portion of the 23 on the side of the second base portion 31. Then, the wiring portion 23 is fixed to the surface of the surface electrode layer in a state where the wiring portion 23 is in close contact with the surface of the surface electrode layer by grasping the terminal portion 24 and the false terminal portion 32, respectively, and applying tension to the metal thin plate 30. After that, an electric current was passed between the terminal portion 24 and the false terminal portion 32 to melt the narrow portion 33, thereby separating the unnecessary portion of the metal thin plate 30. [Selection diagram] FIG. 4