Method for the production of refractory bricks

Details Method for the production of refractory bricks Method for the production of refractory bricks

1992-11-25

1994-04-26

Derrington, James

Plastic and nonmetallic article shaping or treating: processes

Including step of generating heat by friction

264 66, 501132, C04B 3512

Patent

active

053064518

ABSTRACT:
A method for the production of refractory bricks, major components of which are a high proportion of chromium oxide and a small proportion of titanium oxide, makes provision for the chromium oxide and titanium oxide to be mixed, moulded and fired in a reducing atmosphere in order to achieve a solid solution of the titanium oxide in the chromium oxide. The fired intermediate units are then crushed. Other units are then formed from the sieve fractions of the crushed intermediate units and these are fired in a second firing operation to produce the refractory bricks. Non-fired chromium oxide is added to the sieve fractions of the crushed intermediate units and mixed in with this. The other units which are to be reductive-fired in the second firing operation are formed from this mixture.

REFERENCES:
patent: 5024793 (1991-06-01), Wilkening
Specification of Japanese Patent Application SHO59-94526.
"Low Density and Low Thermal Conductivity Chrome Oxide Refractories for Glass-Melting Furnaces for Fiber Production", 1981.
"Properties of Chromic Oxide Refractories", Mar. 1977.

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