Method of manufacturing a contact body

Details Method of manufacturing a contact body Method of manufacturing a contact body

1975-04-01

1977-05-03

Hoffman, James R.

Stock material or miscellaneous articles

Structurally defined web or sheet

Nonplanar uniform thickness material

156210, 427344, 427352, 427376A, B32B 328, B32B 1908, B05D 304, B05D 302

Patent

active

040215903

ABSTRACT:
A method of manufacturing a contact body is disclosed wherein layers of asbestos are formed and arranged so that the individual layers bear against one another at mutually spaced positions to provide a plurality of channels extending through the body from one end to the other with the layers being heated together with at least one substance containing silicon and aluminum to sintering temperature. The addition of silicon and alumina to the contact body is adjusted so that in the sintered layers the ratio, by weight, of the oxide of silicon to the oxides of aluminum and magnesium is in the range of 45-55% SiO.sub.2, 30-45% Al.sub.2 O.sub.3 and 10-20% MgO.

REFERENCES:
patent: 1972500 (1934-09-01), Taohey et al.
patent: 2354350 (1944-07-01), Schuetz
patent: 2354351 (1944-07-01), Schuetz
patent: 2434466 (1948-01-01), Marc
patent: 3499812 (1970-03-01), Glav

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