Hoganas Ab

Hoganas Aktiebolag

Paul Lennart Ivarsson

Ingvar G Blom

Ingvar Gustav Blom

Peter Harry Havranek

Lars G Berg

Refractory lining for e.g. casting boxes comprising a refractory matrix and precipitated silica, the silica being precipitated in situ to form a structure, imparting to the material a volume weight of from about 0.8 to about 1.2 g/cm.sup.3, the material being substantially free from carbon, hydrogen and available oxygen; process for the manufacture of such refractory lining.

Refractory lining and process for its manufacture

A refractory material contains a small quantity of colloidal silica. The colloidal silica increases the resistance of the material against aggressive slags.

Refractory linings

This invention relates to a refractory mass of the art known per se for casting, ramming or stamping refractory linings and for metallurgical ladles or tapping channels, based on refractory grog and binder, to which mass there has been added straw-shaped, channel-forming elements, equally distributed throughout the mass, in sufficient amount to make possible rapid-drying.

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Hoganas, Sweden

Paul Lennart Ivarsson