湿法纺丝鹅颈管的阳极保护研究  

ANODIC PROTECTION OF GOOSENECK IN WET SPINNING

作　　者：胡肆福[1] 

机构地区：[1]中国科学院福建物质结构研究所二部,厦门361012

出　　处：《腐蚀与防护》2000年第11期492-494,共3页Corrosion & Protection

摘　　要：采用电化学方法研究维尼纶湿法纺丝生产设备中的 1Cr18Ni9Ti不锈钢鹅颈管 (输送纺丝 PVA原液到喷丝头 )的管内外壁分别在 PVA原液 (98°C,2 0 0 k Pa)和凝固液 (4 5°C,10 0 k Pa)中的电化学极化行为 ;探讨不锈钢鹅颈管腐蚀现象的原因 ,认识到它是一种电偶腐蚀的行为。结果表明 :恒电位 (10～ - 5 0 m V,vs.SCE)极化技术在降低喷丝头更换率 ,提高丝的产、质量的同时 ,不锈钢鹅颈管得到了保护。The electrochemical polarization actions have been investigated on the interior and exterior surfaces in the primary liquor (98°C,200kPa) and solidifying liquor (45°C, 100kPa), of the gooseneck of stainless steel 1Cr18Ni9Ti used in the equipment of wet spinning of vinglon The reasons why the stainless steel of gooseneck corrodes have been surveyed and attributed to an action of galvanic corrosion The results show that the static potential technology (10^-50mV, vs SCE) can decrease the replacing rate of spinning jet and can improve the quality and quantity of the silk, meanwhile the gooseneck can be anodically protected

关 键 词：湿法纺丝 不锈钢鹅颈管 阳极保护 维尼纶 

分 类 号：TQ342.42[化学工程—化纤工业]