公开(公告)号：US3904426A

公开(公告)日：1975-09-09

申请号：US49501474

申请日：1974-08-05

Applicant: IBM

Inventor： FRIESER RUDOLF G ,  POWELL JIMMIE L ,  TUMMALA RAO R

IPC: C03B5/00 ,  C03C3/074 ,  C03C8/10 ,  C03C8/24 ,  C03C3/10

CPC classification number: C03C8/245 ,  C03C3/0745

Abstract: A process for manufacturing a sealing glass composition consisting essentially of the following ingredients in the following proportions:

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. Thereafter, 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 1,100 + OR - 20*C. The temperature of the melt is held between 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.

Abstract translation: 一种密封玻璃组合物的制造方法，主要由下列成分组成：}重量％} PbO 66.0} B2O3 14.0} SiO2 2.0} Al2O3 3.5} ZnO 10.5} CuO 2.5} Bi2O3 1。