TWO-STEP FRIT FUSION METHOD AND FURNACE

摘要

The invention relates to a frit production method which is characterised in that it comprises two different fusion phases. According to the invention, the first fusion phase takes place in a tank furnace which is connected to a distribution channel by means of a neck element. The aforementioned distribution channel conveys and distributes the glass to the second fusion channels for the second fusion step. The furnace associated with inventive method consists of the following zones: a tank in which the first fusion step takes place and in which the base glass is melted, said glass having a composition that is defined as the maximum common divider of the group of frits to be produced, thereby eliminating the most corrosive components; a neck element which connects the tank to the distribution channel; a distribution channel; and one or more channels, to which the rest of the necessary raw materials are added in order to obtain each of the frits and in which the second fusion step takes place.