Ett verktyg vid framställning av glas

摘要

The present invention relates to a tool for use in glass manufacture, such as a glass mould, plunger or the like, in which at least part of the surface of the tool has been provided with a layer produced by thermic spraying. The layer comprises mainly an intermetallic compound, a characterizing feature of which is that the strength values of the compound increase as a function of temperature from room temperature to at least 450 DEG C. Also, the whole tool or a part thereof can be manufactured by a suitable method from the same material as the surface layer.