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.

NEW POT MATERIALS - INDUSTRIAL TRIALS (PR183) - finished 1999
Natural clays are used as basic material for those pots used today at melting of art and household glasses for manual production. In the Scandinavic countries about 60 % of all glass production is hand made glasses. The objective with this project is to find alternative and better material for pot melting.

Glass defects from the pot
The glass is melted discontinous in a pot and has a direct contact with the pot material. The pot material is not resistent to glass so the pot will give rise to stones or cords.More resisitant material like alumina-zirconia refractories for tanks minimize this problem and improve the glass quality.

A pot made of zirconmullite sawed in two. At right an enlargement of the pot showing the glass attack in the glass line.

Improved glass quality
During the latest years considerable efforts have been made to increase the glass quality. The melting process has been improved by better raw material and batch mixing and new modern technics have been introduced for control and regulation of the furnaces.The furnace constructions have also been improved.

Since a lot of efforts have been made to improved quality, now the industry has the ambition to improve the glass quality by reducing the defects which originate from the pot material.

CURRENT PROJECTS