一、繞包線是什么

定義

繞包線是用天然絲、滌綸(lun)絲、玻(bo)璃絲、絕緣(yuan)(yuan)紙或合成樹脂薄(bo)膜(mo)等(deng)(deng)緊密繞包(bao)在導(dao)電線芯上(shang)，形成絕緣(yuan)(yuan)層。也有在漆包(bao)線上(shang)再統包(bao)絕緣(yuan)(yuan)層的(de)。除薄(bo)膜(mo)絕緣(yuan)(yuan)層外，其(qi)他如(ru)玻(bo)璃絲等(deng)(deng)須經膠粘絕緣(yuan)(yuan)漆的(de)浸漬處(chu)理，以提高其(qi)電性(xing)(xing)能，機(ji)械性(xing)(xing)能和防潮(chao)性(xing)(xing)能，實(shi)際上(shang)是組合絕緣(yuan)(yuan)。

特點

具有優良的(de)電(dian)(dian)(dian)絕(jue)緣(yuan)(yuan)(yuan)性能(neng)(neng)、耐高(gao)(gao)電(dian)(dian)(dian)壓(ya)、高(gao)(gao)頻(pin)損耗小、不吸潮、絕(jue)緣(yuan)(yuan)(yuan)電(dian)(dian)(dian)阻大；具有優良的(de)耐燃、耐老化性能(neng)(neng)、使(shi)用壽命(ming)長。繞(rao)包(bao)線(xian)的(de)絕(jue)緣(yuan)(yuan)(yuan)層(ceng)較漆(qi)包(bao)線(xian)厚，是組合(he)絕(jue)緣(yuan)(yuan)(yuan)，電(dian)(dian)(dian)性能(neng)(neng)較高(gao)(gao)，能(neng)(neng)較好地承受(shou)過電(dian)(dian)(dian)壓(ya)及過載負荷(he)，一般應用于大中(zhong)整電(dian)(dian)(dian)工產品中(zhong)。薄膜(mo)統(tong)包(bao)線(xian)具有更高(gao)(gao)的(de)機(ji)械性能(neng)(neng)和電(dian)(dian)(dian)性能(neng)(neng)，用于大、中(zhong)型電(dian)(dian)(dian)機(ji)，效果良好。

二、繞包線與漆包線的區別

漆包線(xian)(xian)是繞組(zu)線(xian)(xian)的(de)一個主要品種(zhong)，由導(dao)體和絕緣層兩部(bu)組(zu)成，裸線(xian)(xian)經退火軟化后，再經過(guo)多次涂漆，烘焙而成。但(dan)要生產出既符合標準要求(qiu)(qiu)，又滿(man)足客(ke)戶要求(qiu)(qiu)的(de)產品并不容(rong)易(yi)，它受原(yuan)材料質量，工藝參(can)數，生產設(she)備，環境(jing)等因素影響(xiang)，因此(ci)，各種(zhong)漆包線(xian)(xian)的(de)質量特性(xing)(xing)(xing)各不相同，但(dan)都具備機(ji)械性(xing)(xing)(xing)能，化學(xue)性(xing)(xing)(xing)能，電(dian)性(xing)(xing)(xing)能，熱性(xing)(xing)(xing)能四大(da)性(xing)(xing)(xing)能。

1、擠包(bao)線：由橡膠(jiao)、塑料、鉛、鋁等材料包(bao)覆而成(cheng)。

2、縱包線：由橡(xiang)皮、皺紋鋁帶材料包覆(fu)而成。

3、繞包線：由(you)帶狀(zhuang)的紙帶、云(yun)母帶、無堿玻(bo)璃纖(xian)維帶、無紡布(bu)、塑料帶等，線狀(zhuang)的棉(mian)紗、絲等纖(xian)維材(cai)料包覆而成。

三、絕緣繞包是什么

絕(jue)緣繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)工(gong)藝是該繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)線的(de)(de)關鍵(jian)加工(gong)工(gong)序。包(bao)(bao)(bao)(bao)(bao)薄膜(mo)(mo)寬(kuan)度(du)(du)(du)和厚度(du)(du)(du)、搭蓋(gai)率、繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)節距(ju)、繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)角(jiao)度(du)(du)(du)之間必(bi)須實現完美(mei)配比，同時在結構設(she)計(ji)時必(bi)須考(kao)慮(lv)薄膜(mo)(mo)的(de)(de)拉伸。在繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)過(guo)程中(zhong)，由于張(zhang)力(li)的(de)(de)作(zuo)用，實際(ji)包(bao)(bao)(bao)(bao)(bao)到(dao)導(dao)線上面的(de)(de)薄膜(mo)(mo)寬(kuan)度(du)(du)(du)要(yao)比薄膜(mo)(mo)本身寬(kuan)度(du)(du)(du)窄，為保證產(chan)(chan)品(pin)搭蓋(gai)率均(jun)勻、穩定(ding)，必(bi)須考(kao)慮(lv)繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)薄膜(mo)(mo)的(de)(de)拉伸效果。此外，繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)張(zhang)力(li)對(dui)產(chan)(chan)品(pin)表面的(de)(de)密(mi)實程度(du)(du)(du)、耐磨性(xing)、耐干濕電弧試驗等均(jun)有重(zhong)要(yao)影(ying)響。按照美(mei)軍(jun)標SAEAS22759的(de)(de)要(yao)求，該新型航空用復合絕(jue)緣繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)線繞(rao)(rao)(rao)(rao)包(bao)(bao)(bao)(bao)(bao)搭蓋(gai)率應為50．4%～54．0%，但在實際(ji)生產(chan)(chan)時要(yao)求則更高，一般應控制在52%±0.5%范圍(wei)內。