Method Of Preventing Flooding Of A Surface With Molten Glass Or Like Heat-Softened Vitreous Material

Where a large number of streams of glass are attenuated from a single feeder to form a single strand, the molten glass tends to wet and flood the platinum alloy surface around the orifices. To prevent this, an inert gaseous environment is provided around the orifice part of the alloy surface. To this is supplied a heat decomposable gas which provides a constituent to reduce the tendency of the glass to adhere to the surface. The constituent may be carbon produced from a hydrocarbon gas.