MULTIPLE ALLOY BUSHING ASSEMBLY

摘要

A filament forming apparatus (5) has a bushing that includes structural components and non-structural components. The structural components which include at least a perforated bottom tip plate (14) are formed of a first material having a high creep strength and the ability to withstand corrosive effects of molten mineral materials. The non-structural components which include at least a screen (16) positioned above the sidewells (40) and the end walls (50) of the bushing are formed of at least a second material that is different from the first material.