| 摘要 |
PURPOSE:To obtain a spinneret uniformly raising temperature of spinning holes, carrying out spinning smoothly and not causing end breakage, having the surface part of spinning hole bonded through an electrical insulating material to a Pt plate, a Pt-Rh alloy plate or a oxide dispersed type Pt. CONSTITUTION:The surface part of spinning holes 19 of a stainless steel spinneret 22 is bonded through electrical insulating materials (e.g. Al2O3) 11 and 15 to a Pt plate, a Pt-Rh alloy plate or an oxide dispersed type 13 to give a spinneret suitable for producing raw carbon yarn and providing raw carbon yarn having stable section texture.
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