鋼芯鋁絞線是指單層或多層鋁股線絞合在鍍鋅鋼芯線外的加強型導線。主要應用于電力和輸電線路行業。由此可以看出其質量直接影響著電力的輸送安全。以下小編將對影響鋼芯鋁絞線質量的主要原因及改進方法進行探討。
01/影響鋼芯鋁(lv)絞線(xian)(xian)(xian)(xian)質(zhi)量的主(zhu)要原(yuan)因一、單(dan)(dan)(dan)(dan)(dan)線(xian)(xian)(xian)(xian)拉絲加工(gong)方面(mian)二、絞線(xian)(xian)(xian)(xian)工(gong)藝方面(mian)1.單(dan)(dan)(dan)(dan)(dan)線(xian)(xian)(xian)(xian)斷裂(lie):主(zhu)要原(yuan)因:1)單(dan)(dan)(dan)(dan)(dan)線(xian)(xian)(xian)(xian)在線(xian)(xian)(xian)(xian)盤上繞得(de)松散,或(huo)單(dan)(dan)(dan)(dan)(dan)線(xian)(xian)(xian)(xian)在線(xian)(xian)(xian)(xian)位上拉得(de)過(guo)(guo)緊;2)穿線(xian)(xian)(xian)(xian)管因摩擦產生溝槽把線(xian)(xian)(xian)(xian)嵌(qian)死;單(dan)(dan)(dan)(dan)(dan)線(xian)(xian)(xian)(xian)打結,或(huo)放線(xian)(xian)(xian)(xian)盤制動大(da)(da)緊。2.單(dan)(dan)(dan)(dan)(dan)線(xian)(xian)(xian)(xian)起拱.松散.蛇形彎主(zhu)要原(yuan)因:1)節徑(jing)比(bi)選擇不合(he)理;2)絞籠分(fen)線(xian)(xian)(xian)(xian)板上各單(dan)(dan)(dan)(dan)(dan)線(xian)(xian)(xian)(xian)位置錯(cuo)列和分(fen)布不均(jun);3)壓(ya)模(mo)孔(kong)徑(jing)過(guo)(guo)大(da)(da);4)個別(bie)單(dan)(dan)(dan)(dan)(dan)線(xian)(xian)(xian)(xian)張力過(guo)(guo)大(da)(da)。
三、生產管理面
在生產過程中,要嚴格控制進廠原材料(liao)的(de)質(zhi)(zhi)量;注意(yi)要避(bi)(bi)免線盤在運(yun)輸(shu)過程中由于磕碰引起的(de)機械損傷;注意(yi)鋁(lv)線的(de)存放地點(dian),應(ying)避(bi)(bi)免腐蝕(shi)性介質(zhi)(zhi)潮濕(shi)空氣的(de)侵(qin)蝕(shi)而造成損傷。
02采取的措施
一、絞線工藝方面
1)檢查(cha)單線(xian)(xian)是否有(you)排線(xian)(xian)不平整(zheng)或有(you)壓線(xian)(xian)現象,應(ying)在拉絲工序(xu)中(zhong)注意要(yao)收線(xian)(xian)盤(pan)排線(xian)(xian)整(zheng)齊(qi);
2)要及時更換磨損嚴(yan)重的穿線管;
3)檢查線盤頂(ding)轉動是否靈活,要保證軸承(cheng)潤(run)滑良(liang)好;
4)檢查放線盤(pan)張(zhang)力(li)設(she)置(zhi)是否均勻一(yi)致(zhi),要根據實際情況調節張(zhang)力(li)大小。
二、絞線工藝方面
1)生產前首先(xian)選擇合(he)適的(de)節徑比,絞入率,絞合(he)節距長度及(ji)絞向等參數。它(ta)們(men)對產品質量(liang)、穩(wen)定性(xing)、強度、電阻以(yi)及(ji)材(cai)料(liao)消(xiao)耗有(you)直較(jiao)影響(xiang);
2)根(gen)據工(gong)作(zuo)經(jing)驗合(he)理調(diao)整單線(xian)在分(fen)線(xian)板上(shang)位置分(fen)布;
3)選用合適的壓(ya)孔格(ge),一般要求壓(ya)模孔徑要比線外徑小0.3-0.5mm之間;
4)要合理調節放線盤張力,保證各單線張力適(shi)中、一致(zhi);
5)調(diao)整好退扭裝置,角(jiao)度要(yao)一致,以消除導作在加工過程中產(chan)生(sheng)的內(nei)應力;
6)絞合制程中盡量(liang)減少(shao)停(ting)車次數(shu),盡量(liang)勻速生產。
鋼(gang)芯(xin)鋁絞線具(ju)有(you)結構簡單、架設與(yu)維護方(fang)便、線路造價低、傳輸(shu)容量大、又利于(yu)跨(kua)越江(jiang)河和(he)山谷等特(te)殊地理(li)條件的(de)(de)敷設、具(ju)有(you)良好的(de)(de)導電性能(neng)和(he)足夠的(de)(de)機(ji)械強度、抗(kang)拉強度大、塔桿距離可放(fang)大等特(te)點。因此廣泛(fan)應用于(yu)各種電壓(ya)等級的(de)(de)架空輸(shu)配電線路中。