Ceramic Crucible and Method for Producing Thereof
Ceramic crucible and coating of that inner surface for the melting of metals in the fast operation inductive kiln, for example, requirement in the dental technique. In order to prolong lifetime of aluminium silicate crucible, namely, to increase number of melting cycle in this crucible, for example, by melting of alloy steel, inner surface of crucible is covered with aluminium silicate coating. Coating is made up by pour in - pour out method and is thermal treatment carried out at temperature 830 to 850 centigrade in the oxygen containing atmosphere. Lifetime of the covered crucible is 18 to 22 cycles at temperature 1500 to 1550 centigrade.
BIDERMANIS LAIMONIS [LV]; SVINKA VISVALDIS [LV]; SVINKA RUTA [LV]; LAGZDINA SILVIJA [LV]; CIMMERS ANDRIS [LV]
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