METHOD FOR MANUFACTURING A SEMICONDUCTOR ELEMENT OF A SPARK PLUG Russian patent published in 2022 - IPC H01T21/02 C04B35/45 

FIELD: spark plugs manufacturing.

SUBSTANCE: invention relates to the field of manufacturing surface-discharge spark plugs, and specifically to a technology for producing a semiconductor element for glow plugs that can be used in gas turbine engine ignition systems. A method for manufacturing a semiconductor element of a spark plug includes preparing a mixture containing silver, copper (II) oxide, manganese oxide, molybdenum, nickel oxide, chromium oxide, silicon oxide. The application of the mixture on the working surface of the corundum ceramic insulator is carried out in two layers with drying of each layer. Next, drying is carried out at a temperature of 250-300°C, firing at a temperature of 1200±5°C, slow cooling in a muffle furnace until complete cooling, stabilization at a temperature of 700±20°C with further cooling in air until complete cooling.

EFFECT: invention improves manufacturability and production flexibility.

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