发明名称 |
FOLHA DE TUBO, CONJUNTO DE FOLHA DE TUBO/FIBRA OCA E PROCESSO PARA FABRICACAO DE CONJUNTO DE FOLHA DE TUBO/FIBRA OCA |
摘要 |
A small amount of SiO2 is added to a sodium borate solder glass for making tubesheets in hollow fiber, high temperature battery cells. The glass is more easily ground and has a lower softening temperature. When the powdered glass is fused, to form the tubesheet and sealingly engage the fibers (3), the fiber-weakening fluxing action of the glass is considerably reduced. The invention also resides in a method of making the tubesheet whereby the internal structure is modified so that it has a closed upper surface (2) while the underlying structure of the tubesheet is more open or porous (1). |
申请公布号 |
BR8000980(A) |
申请公布日期 |
1980.10.29 |
申请号 |
BR19808000980 |
申请日期 |
1980.02.15 |
申请人 |
THE DOW CHEMICAL CO |
发明人 |
REVAK T;JOGINDER NATH ANAND;LEVINE C;FLORIS YUNG TSANG |
分类号 |
C03C3/064;C03C3/14;C03C8/24;C03C13/00;H01M10/39;(IPC1-7):H01M4/08 |
主分类号 |
C03C3/064 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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