| 摘要 |
PURPOSE:To prevent breakdown of a solid electrolyte during immersion into molten steel in an easy way, by covering the lower part of the protruded solid electrolyte with a metallic cylinder. CONSTITUTION:The solid electrolyte 3 made mainly of zirconia is protruded on the end face of the housing 2 of a main support, and in its inside, the end part is filled with a standard substance 5 and the bottom part is filled with a heat resistant power 6. The bottom part of the solid electrode 3 is surrounded with the metallic cylinder 10. Abrupt temperature grade occurring on the border face of the housing 2 and the solid electrolyte 3 is alleviated by said constitution, and breakdown of the solid electrolyte 3 is prevented during its immersion into molten steel. |
