| 摘要 |
<p>PURPOSE:To obtain the title paste which can give a fluorescent display tube of an excellent luminous efficiency in good yields, by mixing a graphite powder with a binder aid comprising an Al2O3 powder, an SiO2 powder and a water glass in a specified weight ratio and a solvent. CONSTITUTION:1pts.wt. graphite powder (A) is mixed with a binder aid (B) comprising 1.0-2.0pts.wt. Al2O3 powder (a), 0.002-1.0pts.wt. SiO2 powder (b) and 0.01-0.25pts.wt. water glass (c), and a solvent (C) in an amount necessary to give a desired viscosity to the mixture to obtain the title paste having the lowest possible water glass content.</p> |
