Bushing for Manufacturing Glass Fiber, and Method for Manufacturing Glass Fiber

摘要

The bushing for producing glass fibers of the present disclosure includes a base plate; and nozzles arranged on the base plate and each configured to discharge glass melts. The base plate is provided with base orifices each having a horizontally flat cross section. Each of the nozzles is provided with a nozzle wall projecting from the base plate along an outline of a corresponding base orifice, and a nozzle orifice that penetrates the nozzle from the base orifice to a distal end of the nozzle wall while keeping the shape of the base orifice. The nozzle wall is provided with a pair of cutouts that do not project from the base plate. The cutouts oppose each other with a longitudinal center axis of the nozzle orifice in between. The width of each of the cutouts is 10% or more and 95% or less of the length of the longitudinal center axis of the nozzle orifice.