| 摘要 |
9D-MA-17029 APPLICATION OF CONDUCTIVE METALLIC FILM TO A GLASS CERAMIC SUPPORT SURFACE A method of applying a metal film on a glass ceramic plate comprising the following steps: applying a thin layer of a metal paste comprising an metallo-organic compound preferably substantially devoid of flux material to the glass ceramic plate surface in the desired pattern; slowly heating the plate to burn off the organic components of the paste; after cooling, covering the resultant strips of metallic film with a thin protective layer of an organic resin material, characterized by a vaporization temperature in the normal operating temperature range to which the glass is exposed when in use. On the first operational use of the glass the organic resin cleanly vaporizes away thereby preventing the protective coating from interfering with proper sensor operation. This protective layer compensates for the reduced bonding of pastes having little or no flux, protecting the metal film from abrasion prior to and during assembly of the cooktop appliance. Preferably the paste is a noble metal paste containing a substantial percentage of gold and the organic resin material is a clear acrylic resin. |
