| 摘要 |
PURPOSE:To allow a face heater used for various electric equipment to live longer by allowing the heater to be insulated from higher electricity and providing higher moisture and heat-impact resistance. CONSTITUTION:A heater element 2 is located between a pair of electric insulating materials 1a, 1b consisting of composite phologopite and non-alkali amorphous glass such that the heater element 2 and the pair of electric insulating materials 1a, 1b are integrated. This constitution improves, heat,, voltage, and heat-impact resistance as well as local heating, resolves safety and sanitary problems, and limits the composition of non-alkali amorphous glass as well as the glass transition point to restrict the reaction of the glass to the heater element 2, allowing the panel heater to live longer. |
