| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive resistor paste for heater having an optional resistance value and minimized in the change with the lapse of time of the resistance value to heating and temperature rise and fall by adjusting the mixing ratio of aluminum powder to silver powder. SOLUTION: In this resistor paste for heater, 1-50 parts by weight of aluminum powder is mixed to 100 parts by weight of silver powder. The particle size of silver powder is set less than 20μm, and the particle size of aluminum powder is suitably less than 50μm. These powders suitably have spherical or flake-like forms. The paste is used by dissolving an organic vehicle of general electrode paste material, for example, cellulose resin in a solvent such as terpineol or cellosolve. Further, glass powder is used as other additives in order to provide the bonding strength with a base. According to this constitution, an inexpensive resistor paste for heater having an optional resistance value and minimized in the change with the lapse of time of the resistance value to heating and temperature rise and fall is provided.
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