談談關于裸銅絲的特殊性能

大(da)家都(dou)應該知道，紫(zi)銅(tong)(tong)的(de)用途比純(chun)鐵廣泛得多，每(mei)年有50%的(de)銅(tong)(tong)被電(dian)(dian)解提純(chun)為(wei)純(chun)銅(tong)(tong)，用于電(dian)(dian)氣(qi)工業(ye)。這里所說的(de)紫(zi)銅(tong)(tong)，確實要非常純(chun)，含(han)銅(tong)(tong)達99.95%以上(shang)才行，極少量的(de)雜質，特(te)別是(shi)磷、砷(shen)、鋁(lv)等，會(hui)大(da)大(da)降低(di)銅(tong)(tong)的(de)導(dao)電(dian)(dian)率。銅(tong)(tong)中含(han)氧(yang)對導(dao)電(dian)(dian)率影響很大(da)，用于電(dian)(dian)氣(qi)工業(ye)的(de)銅(tong)(tong)一般都(dou)是(shi)無氧(yang)銅(tong)(tong)。

另外，鉛、銻、鉍等雜質會使銅(tong)(tong)(tong)(tong)的結晶(jing)不(bu)能結合在(zai)一起，造成熱脆，也會影(ying)響純(chun)(chun)銅(tong)(tong)(tong)(tong)的加工。這種(zhong)純(chun)(chun)度很高的純(chun)(chun)銅(tong)(tong)(tong)(tong)，一般用(yong)電解(jie)法(fa)精制：把不(bu)純(chun)(chun)銅(tong)(tong)(tong)(tong)作陽極，純(chun)(chun)銅(tong)(tong)(tong)(tong)作陰極，以硫酸(suan)銅(tong)(tong)(tong)(tong)溶液為電解(jie)液。當(dang)電流通過后，陽極上不(bu)純(chun)(chun)的銅(tong)(tong)(tong)(tong)逐漸(jian)熔解(jie)，純(chun)(chun)銅(tong)(tong)(tong)(tong)便逐漸(jian)沉淀在(zai)陰極上。

據華仕(shi)鍍錫銅線廠(chang)家(jia)介紹，的導(dao)電(dian)(dian)性很好，大量用于制造(zao)電(dian)(dian)線、電(dian)(dian)纜、電(dian)(dian)刷等(deng)(deng)；導(dao)熱性好，常用來制造(zao)須防磁性干擾的磁學儀器、儀表(biao)，如(ru)羅(luo)盤、航(hang)空(kong)儀表(biao)等(deng)(deng)；易于熱壓和冷(leng)壓力加工，可制成(cheng)管、棒、線、條(tiao)、帶(dai)、板(ban)、箔等(deng)(deng)銅材(cai)。廣(guang)泛應(ying)用于航(hang)空(kong)、艦(jian)船、軍(jun)工、冶金、電(dian)(dian)子、機(ji)電(dian)(dian)、紡織(zhi)、交通、建筑、化工、五(wu)金、輕(qing)工、能源(yuan)等(deng)(deng)國民經濟(ji)各領域。