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公开(公告)号：US20200024177A1
公开(公告)日：2020-01-23
申请号：US16477390
申请日：2018-02-23
发明人： Tsuyoshi FUJII , Masanori SAITO
IPC分类号： C03B37/02 , C03B37/083 , C03B37/075
摘要： A nozzle tip for producing glass fibers has a pair of long-side walls and a pair of short-side walls, each of the long-side walls and the short-side walls containing platinum or a platinum alloy, and a nozzle orifice for discharging the glass melt, the nozzle orifice being formed by the long-side walls and the short-side walls. The nozzle orifice has a flat hole shape in horizontal cross-section. Each of the long-side walls has a cut-out on a discharge side of the glass melt, a width of the cut-out being 10-55% of a length of a longitudinal center axis of the flat hole shape of the nozzle orifice. The pair of long-side walls has a symmetrical shape about the center axis of the nozzle orifice. This nozzle tip makes it possible to efficiently produce glass fibers having a desired cross-sectional shape.
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公开(公告)号：US20210403367A1
公开(公告)日：2021-12-30
申请号：US17269638
申请日：2019-08-15
发明人： Tsuyoshi FUJII , Masanori SAITO
IPC分类号： C03B37/083
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.
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