銅(tong)(tong)包鋁(lv)線(xian)是指以鋁(lv)芯線(xian)為主體，外(wai)面鍍一定比例的(de)銅(tong)(tong)層(ceng)的(de)電(dian)線(xian)，可以用作同(tong)軸電(dian)纜用導體及(ji)電(dian)氣裝備中電(dian)線(xian)電(dian)纜導體。鋁(lv)線(xian)比重(zhong)小(xiao)，但其(qi)焊(han)接性能(neng)不(bu)好(hao)，故在(zai)鋁(lv)線(xian)外(wai)包銅(tong)(tong)層(ceng)，這種銅(tong)(tong)包鋁(lv)線(xian)既可利用鋁(lv)比重(zhong)小(xiao)的(de)優點，也(ye)可改善(shan)焊(han)接性能(neng)。 ?適用于電(dian)力、電(dian)器(qi)行業(ye)，蘇州銅(tong)(tong)包鋁(lv)，類別等級(ji)為國際、國內。

主要功能

因為該種電(dian)線(xian)(xian)的(de)(de)主要功能(neng)(neng)是(shi)傳(chuan)輸信號，其流過(guo)的(de)(de)電(dian)流很小。但(dan)是(shi)，由于鋁的(de)(de)導(dao)電(dian)率只有銅(tong)的(de)(de)2/3，銅(tong)包(bao)鋁電(dian)磁線(xian)(xian)，所以國家(jia)biaozhun規定凡(fan)是(shi)用作(zuo)傳(chuan)輸電(dian)能(neng)(neng)的(de)(de)電(dian)線(xian)(xian)電(dian)纜必須用不鍍金屬或鍍金屬的(de)(de)退火銅(tong)線(xian)(xian)作(zuo)導(dao)體(ti)，禁(jin)止用鋁線(xian)(xian)（包(bao)括銅(tong)包(bao)鋁線(xian)(xian)）作(zuo)導(dao)體(ti)。

銅包鋁漆(qi)包線(xian)應用(yong)領域：

★用于制作要(yao)求重量輕(qing)、相(xiang)對導電率較高、散(san)熱性好的(de)繞組，特別是傳輸高頻信號的(de)繞組

★高頻變壓器(qi)、普通變壓器(qi)、電(dian)感線圈、電(dian)機、家用電(dian)機及微型馬達用電(dian)磁(ci)線；

★微(wei)型(xing)電(dian)機轉子線圈等(deng)用漆包線；

★用于(yu)音響(xiang)線圈、光(guang)驅的特殊電磁線；

★顯(xian)示器偏轉(zhuan)線圈用電(dian)磁線；

★消磁線圈用(yong)電磁線；

★用于手(shou)機內部線圈、手(shou)表驅(qu)動元件等的電(dian)磁線；

★其他特殊電磁線。

銅包鋁電力電纜

具(ju)有(you)良(liang)好的(de)(de)(de)(de)耐腐(fu)蝕性(xing)。鋁(lv)比銅(tong)(tong)(tong)易腐(fu)蝕，但由于(yu)銅(tong)(tong)(tong)包鋁(lv)材(cai)料已經(jing)完全冶金化(hua)，電(dian)(dian)(dian)鍍銅(tong)(tong)(tong)包鋁(lv)，鋁(lv)完全被(bei)銅(tong)(tong)(tong)所(suo)覆，不(bu)(bu)(bu)會(hui)(hui)被(bei)水、空氣接觸，完全達到與銅(tong)(tong)(tong)一樣(yang)的(de)(de)(de)(de)性(xing)能(neng)。銅(tong)(tong)(tong)包鋁(lv)/銅(tong)(tong)(tong)復合導體(ti)還更(geng)用(yong)利于(yu)避免電(dian)(dian)(dian)纜在長期使(shi)用(yong)過程中由于(yu)腐(fu)蝕、碰傷或因緊(jin)壓、錫(xi)焊(han)接不(bu)(bu)(bu)好使(shi)導體(ti)與接線端子接觸不(bu)(bu)(bu)良(liang)、發熱引起(qi)銅(tong)(tong)(tong)層(ceng)脫落和(he)銅(tong)(tong)(tong)鋁(lv)兩種金屬之間形成(cheng)電(dian)(dian)(dian)勢(shi)差(cha)，加速電(dian)(dian)(dian)化(hua)腐(fu)蝕，造(zao)成(cheng)電(dian)(dian)(dian)纜端部燒毀的(de)(de)(de)(de)隱患(huan)。對于(yu)鋁(lv)導體(ti)，特(te)別是在沿海地區，大氣中鹽霧所(suo)含有(you)的(de)(de)(de)(de)氯離子會(hui)(hui)凝聚在鋁(lv)的(de)(de)(de)(de)表面(mian)，易在表面(mian)的(de)(de)(de)(de)雜質和(he)缺陷周圍引起(qi)局部腐(fu)蝕，形成(cheng)孔(kong)洞、裂紋(wen)和(he)微(wei)電(dian)(dian)(dian)池，加劇鋁(lv)導體(ti)的(de)(de)(de)(de)腐(fu)蝕。