| 摘要 |
PURPOSE:To obtain a spinning nozzle for inorganic continuous fiber precursor having excellent abrasion resistance and corrosion resistance, by embedding a ceramic chip having specific shape and structure in a nozzle plate in a manner to form a protrusion to the dope-extrusion side and bonding or fixing the chip to the plate. CONSTITUTION:A dope passing hole 5 and a dope inlet hole 2 are bored to the dope-inlet side of a nozzle plate 1 and a chip insertion part 3 and a holding part 4 are bored to the dope extrusion side thereof. A ceramic chip 6 coated with an adhesive at the back is inserted and embedded in the insertion part. An adhesive is poured into the holding part 4 to bond or fix the chip. The ceramic chip is a hollow thin cylindrical tube having an inner diameter of 0.05-0.4mm, an outer diameter of 1-3mm and a length of <=16mm. The wall thickness of the tube is <=0.5mm at the tip end.
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