電纜大家都不是陌(mo)生，今日小編為你講解(jie)交聯聚乙烯絕緣線芯生產過程(cheng)中表面凹(ao)凸不平(ping)、鼓包等(deng)問題，亨通電纜湖北總經銷，進行分析，提出解(jie)決方法及控(kong)制(zhi)對策。

其原因如下：

一、生膠現象

交聯(lian)絕緣線(xian)芯在生產過程中(zhong)有(you)時會出現(xian)(xian)生膠(jiao)現(xian)(xian)象，還會形成絕緣僵塊(kuai)或硬塊(kuai)。這一現(xian)(xian)象的原因主要有(you)：

(1)機(ji)頸或機(ji)頭溫度不夠，導致內部局部冷(leng)膠(jiao)產生。

(2)由于機(ji)體溫度或剪(jian)切(qie)力不(bu)(bu)足，造成局部塑化(hua)不(bu)(bu)良。

(3)如果過濾網襯墊不到位，終影響交聯絕緣料擠出壓力，還會產生生膠，使絕緣線芯表面出現凹凸硬塊。

電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)組(zu)成(cheng)結(jie)構(gou)：絕緣層(ceng)是(shi)包(bao)覆(fu)在導線外圍四周，起(qi)著(zhu)電(dian)(dian)(dian)(dian)氣絕緣作用的(de)(de)構(gou)件(jian)，即(ji)能(neng)(neng)確(que)保(bao)傳(chuan)輸的(de)(de)電(dian)(dian)(dian)(dian)流(liu)或電(dian)(dian)(dian)(dian)磁波、光(guang)波只沿(yan)著(zhu)導線行進(jin)而(er)不流(liu)向外面，導體上(shang)具(ju)有(you)的(de)(de)電(dian)(dian)(dian)(dian)位能(neng)(neng)被隔絕，既要保(bao)證(zheng)導線的(de)(de)正常(chang)傳(chuan)輸功能(neng)(neng)，又要確(que)保(bao)外界物(wu)體和人身的(de)(de)安全。然后是(shi)填充(chong)(chong)結(jie)構(gou)，很多電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)產(chan)品(pin)是(shi)多芯(xin)的(de)(de)，將(jiang)這些絕緣線芯(xin)或線對成(cheng)纜(lan)(lan)后，一是(shi)外形不圓整，二是(shi)絕緣線芯(xin)間(jian)留有(you)很大空(kong)隙(xi)，因此(ci)必(bi)須在成(cheng)纜(lan)(lan)時加入填充(chong)(chong)結(jie)構(gou)。屏(ping)蔽是(shi)一種將(jiang)電(dian)(dian)(dian)(dian)纜(lan)(lan)產(chan)品(pin)中(zhong)(zhong)的(de)(de)電(dian)(dian)(dian)(dian)磁場與外界的(de)(de)電(dian)(dian)(dian)(dian)磁場進(jin)行隔離的(de)(de)構(gou)件(jian)；而(er)護(hu)層(ceng)是(shi)當電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)產(chan)品(pin)安裝運行在各種不同(tong)的(de)(de)環境中(zhong)(zhong)時，必(bi)須具(ju)有(you)對產(chan)品(pin)整體，特別是(shi)對絕緣層(ceng)起(qi)保(bao)護(hu)作用的(de)(de)構(gou)件(jian)。還有(you)抗拉(la)元件(jian)，典(dian)型的(de)(de)結(jie)構(gou)是(shi)鋼芯(xin)鋁絞線、光(guang)纖光(guang)纜(lan)(lan)電(dian)(dian)(dian)(dian)纜(lan)(lan)等。