Process for making refractory shapes

Details Process for making refractory shapes Process for making refractory shapes

1975-10-20

1977-06-07

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

106 65, 106 734, 264 63, 264176R, C04B 3332

Patent

active

040284530

ABSTRACT:
This application relates to a process for making ceramic shapes from nonplastic size graded ceramic materials comprising the formulation of a unique batch. The batch is processed in a water-cooled pug mill-extruder to prepare a deaired and densified column. The column is cut into constant volume billets. The billets are then pressed or reformed at low pressures into uniformly sized shapes which are thereafter dried and fired to develop a ceramic bond.

REFERENCES:
patent: 3067050 (1962-12-01), Miller
patent: 3231401 (1966-01-01), Price et al.
patent: 3512571 (1970-05-01), Phelps
patent: 3565646 (1971-02-01), Housh
patent: 3652307 (1972-03-01), Bakker
patent: 3804644 (1974-04-01), Wilkinson et al.
White et al., "Extrusion Properties of Non-Clay Oxides", Cir. Bull., 42[11] (1963) pp. 698-702.

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