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[问题求助] 单模室内软光缆难题,请教高手
P:2010-11-30 12:30:04
1
急急急..单模室内软光缆难题,求高手指点....
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国产软光缆生产线,做1~12芯软光缆,紧包加芳纶填充,最近生产单模缆时数据总是时好时坏(多模一切正常,偶尔会有问题),芯数越大越严重.1550平均衰减2点几,3点几,有的有台阶.(紧包下来数据都是0.6以下的).一直找不到原因.最先考虑是芳纶用量过少,紧包和护套有粘结,增加芳纶用量,紧包线过滑石粉,把本来拆下没用的SZ绞又重新装上,都没有效果. 后来又考虑放线张力,芳纶张力,主机温度,包括冷却水温等因素,一一都调整过.也无改善. 而且1KM有台阶总是集中在700~800M之间. 有的数据不好,倒盘之后会变好一点.以上问题困扰多时,求高手指点.....
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