Address:
Glafo, Box 5157,
SE-350 05 Växjö
SWEDEN

Visitor's address:
Vejdes plats 3

Tel: +46 10 516 63 50
E-mail: info@glafo.se

You find a map at the
"about Glafo" page.

STUDIES OF THE FLOWABILITY OF GLASS WOOL MELT


The objective is to study and optimise a mixture of raw materials for glass wool melts with respect to flowability and energy use in a specially designed top loading furnace at laboratory scale.

Glass wool manufacturers today use a large percentage of recycled glass/cullet as raw material. The quality of cullet varies, and this can modify the flowability of the melt, energy use during the melting process and the quality of the finished product.

Cullet is received from a number of recycled glass firms and from flat glass, and may contain certain impurities such as stones, ceramics and porcelain. Variations in the chemical composition of the recycled glass are balanced by adding genuine raw materials. In spite of this, during certain periods there are variations in fibration properties which result in products of inferior properties.

The flowability of the melt is to be studied at laboratory scale in a specially designed furnace built for the project. A number of methods will be developed for measuring the flowability of the melt at fibration temperature.

Melting tests with different types of raw materials and batches will be made and optimised with regard to flowability and energy use. The tendency of the melt to crystallise will also be studied.

CURRENT PROJECTS