| 摘要 |
PURPOSE:To prevent a solid electrolyte tube from breaking at the time of temperature rise by filling the upper space of the solid electrolyte tube with a mixture of glass solder powder and powder or grains of melt-resistant sodium nature and sealing the opening so that the top end of the solid electrolyte tube is joined to an alpha-alumina ring with a sealing agent of main ingredients of fine powder of alpha-alumina and sodium silicate. CONSTITUTION:The upper space of a solid electrolyte tube 1 is filled with the mixture of glass solder powder 12 and powder or grains of alpha-alumina as powder or grains 11 of melt-resistant nature, heated in air or inert gas, and the top end of the electrolyte tube 1 and a cathode pipe 6 are joined together and sealed. A cathode cap 3 and an anode cap 4 are respectively heat pressed against the top and bottom surfaces of an alpha-alumina ring 2. The top end of the electrolyte tube 1 is inserted into the alpha-alumina ring 2, solution of a sealing agent 13 of main ingredients of alpha-alumina fine powder and sodium silicate is applied to the gap between the tube and ring, dried and heat-treated to make solid solution. |
