Title: Improvements in or relating to glass melting tanks and to refractory materials for use therein
Application Number: 85108670 Application Date: 1985.11.27
Publication Number: 1000708 Publication Date: 1986.05.10
Approval Pub. Date: 1990.11.07 Granted Pub. Date: 1990.11.07
International Classifi-cation: C03B5/04;C04B35/48;C04B35/62
Applicant(s) Name: Pllkington Brothers P.L.C. Address:
Inventor(s) Name: Stanley Lythgoe
Attorney & Agent: LV XIGYONG
Abstract:
    The glass melting tank for supplying a flat glass forming process has a melting zone for melting solid batch material and a refining zone with reduced return flow of glass. The base of the refining zone comprises a fusion cast refractory material comprising alumina, silica and between 31% and 43% by weight of zirconia. The refractory is conditioned by oxidation at at least 1450 DEG C. for 24 hours.
Time: 5