Recently, a premium glass container producer in western Europe confronted the pain of repeated refractory stirrer change-outs every two weeks. They also faced streaked glass and too many rejected containers. The stirrers they relied on were supplied by a well-known European manufacturer, but they degraded too rapidly. Then they tried Pyrotek's refractory stirrers.
Pyrotek Rigid Glasweve® Filters: Choice of the Industry's Best Casters
BMW in Landshut, Germany, developed and has advanced metal quality and casting processes with the highest specifications, incorporating technology like RGW filters.
The Clear Advantages of Near Net Shape (NNS) Casting of Expendable Refractories
Most of Pyrotek's competitors' orifice rings require the orifices to be machined to size, and the machining by core drills exposes internal porosity. It is well known that one of the causes of blister in glass is from porosity in expendable refractories. When in contact with hot glass, the porosity will release nitrogen and carbon dioxide into the glass. In one case study, it showed that more than $100,000 a year in container rejections and loss of production was attributable to this problem.
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