We produce stirrers from molybdenum and coat these with Al2O3 for the processing of particularly high-grade types of glass for optical components. The stirrers are then platinized by our partners in the platinum industry.
Partially platinized molybdenum stirrers
Molybdenum is extremely corrosion-resistant. During the homogenization of borosilicate glass- and opal glass melts, molybdenum performs well, even in direct comparison with the glass melt. We developed our partially platinized stirrers for exactly this purpose. Only the stirrer shaft outside the glass melt is protected against oxidation by means of a platinum sleeve.
Fully platinized molybdenum stirrers
Fully platinized stirrers are used if stringent purity requirements exist for the end product during the processing of particularly corrosive types of glass. With its high creep resistance and high-temperature stability, molybdenum provides the necessary mechanical stability. The soft platinum cladding provides optimum corrosion protection.