Process for manufacturing low sealing glasses

Details Process for manufacturing low sealing glasses Process for manufacturing low sealing glasses

C - Chemistry, Metallurgy

03

C

261/17

C03C 8/24 (2006.01) C03C 3/074 (2006.01)

Patent

CA 1043822

A PROCESS FOR MANUFACTURING LOW TEMPERATURE SEALING GLASSES Abstract of the Disclosure A process for manufacturing a sealing glass composition con- sisting essentially of the following ingredients in the following proportions: Image The process comprises the steps of providing the batch of ingredients to the above proportions and insuring a full mixture or mixing of the same. There- after, in one embodiment of the process, the batch may be heated to between 750 and 850°C to form a liquid melt and then the liquid melt is further heated until the temperature is 1100? 20°C. The temperature of the melt is heldbetween the aforementioned limits for a period of at least 3 hours and no longer than 3 1/2 hours, and thereafter the temperature of the melt is lowered to effectively inhibit bubbling of the liquid melt, and then the melt is removed for further processing. -1-

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