Stir chambers for stirring molten glass and high-temperature sealing articles for the same

摘要

Stir chambers for stirring molten glass are disclosed. The stir chambers include a support frame, a sealing article, and a removable cover panel. The stir chambers also include a gland coupled to one of the support frame or the removable cover panel, and into which the sealing article is inserted. The stir chambers further include a seal land coupled to one of the support frame or the removable cover panel. The sealing article includes a plurality of ceramic filaments bundled together to form a core portion and a jacket portion that includes a plurality of ceramic filaments woven together. The removable cover panel is coupled to the support frame such that at least a portion of the seal land is positioned inside the gland to compress the sealing article.

主权项

1. A stir chamber for stirring molten glass comprising:
a support frame; a removable cover panel selectively coupled to the support frame; a gland coupled to one of the support frame or the removable cover panel, the gland having a back wall and two sidewalls extending from the back wall by a groove depth, wherein the two sidewalls are spaced apart from one another a groove width; a seal land coupled to the other one of the support frame or the removable cover panel and positioned proximate to the gland, the seal land comprising a seal interface portion having a thickness less than the groove width of the gland; and a sealing article comprising a plurality of ceramic filaments bundled together to form a core portion and a jacket portion comprising a plurality of ceramic filaments woven together, wherein the jacket portion surrounds the core portion,wherein the seal interface portion is positioned inside the gland such that the sealing article is compressed and contacts the back wall of the gland, and the seal interface portion is positioned a spacing distance away from the back wall, wherein the spacing distance is less than the groove depth.