銅包鋼絞線優點
1、電氣性能更佳
銅(tong)包鋼絞線表層為無(wu)氧(yang)銅(tong),導電性(xing)能好(hao),內層為優質碳素鋼,集膚效應原理導電,導磁(ci)特性(xing)優異(yi)。電阻(zu)遠(yuan)低于鋼材、鍍鋅鋼材等常規(gui)材料。表層為無(wu)氧(yang)銅(tong)。
2、銅層粘合度高
因為是(shi)(shi)銅層(ceng)(ceng)和(he)鋼(gang)的(de)表面是(shi)(shi)分子的(de)結合(he),所以粘合(he)度(du)高,在絞(jiao)合(he)成(cheng)絞(jiao)線(xian)的(de)時候(hou),銅層(ceng)(ceng)都不(bu)會(hui)遭到破壞,不(bu)會(hui)出現脫節、翹皮(pi)、開(kai)裂現象。
3、價格低廉
因其防腐(fu)蝕能(neng)力,電氣(qi)性(xing)能(neng),抗拉強度等性(xing)能(neng)完全等同(tong)于純(chun)銅產品,所以(yi)可以(yi)直(zhi)接替代純(chun)銅導(dao)體(ti)。相比純(chun)銅的接地導(dao)體(ti),價格低廉,為工程項目節約大量資金。
4、制造工藝獨特
采(cai)用水平連(lian)鑄生產工(gong)藝(yi),該(gai)工(gong)藝(yi)為(wei)國(guo)內首創。連(lian)鑄工(gong)藝(yi)采(cai)用的是將電解銅加熱至(zhi)1200oC時銅結(jie)(jie)合面形成合金(jin)化過鍍層,雙金(jin)屬界面完(wan)全牢固結(jie)(jie)合,從而(er)實現(xian)(xian)銅與鋼之間(jian)可延性(xing)冶(ye)金(jin)熔(rong)接,成為(wei)單(dan)一(yi)(yi)復合體,可像拉(la)拔(ba)單(dan)一(yi)(yi)金(jin)屬一(yi)(yi)樣任(ren)意拉(la)拔(ba),不出現(xian)(xian)脫(tuo)節、翹皮、開裂(lie)現(xian)(xian)象(xiang)。
5、防腐特性更優
雙金(jin)屬內(nei)(nei)部(bu)(bu)無殘(can)留(liu),耐腐(fu)(fu)蝕(shi)(shi)性(xing)更(geng)優。水(shui)平連鑄工(gong)藝采用(yong)高溫熔化,殘(can)留(liu)物(wu)被(bei)煅(duan)燒后溢出銅(tong)(tong)(tong)(tong)面(mian)(mian),不(bu)會(hui)(hui)殘(can)留(liu)在(zai)銅(tong)(tong)(tong)(tong)包剛導(dao)(dao)體內(nei)(nei),因(yin)而(er)內(nei)(nei)部(bu)(bu)不(bu)會(hui)(hui)出現(xian)腐(fu)(fu)蝕(shi)(shi)現(xian)象(xiang)(xiang)。用(yong)扁鋼(gang)(gang)(gang)或建設物(wu)基(ji)礎作為接(jie)(jie)地(di)(di)體,由于(yu)耐腐(fu)(fu)蝕(shi)(shi)效(xiao)果(guo)差而(er)影響了(le)(le)接(jie)(jie)地(di)(di)裝置的可靠性(xing)。采用(yong)鍍鋅角鋼(gang)(gang)(gang)(圓鋼(gang)(gang)(gang))做接(jie)(jie)地(di)(di)體,雖然(ran)減(jian)慢(man)了(le)(le)鋼(gang)(gang)(gang)的腐(fu)(fu)蝕(shi)(shi),但因(yin)鋅比鋼(gang)(gang)(gang)活潑(po)(po),鋅的腐(fu)(fu)蝕(shi)(shi)速度(du)比鋼(gang)(gang)(gang)更(geng)快,由于(yu)鍍鋅層與(yu)土(tu)壤接(jie)(jie)角,而(er)它卻在(zai)不(bu)斷的腐(fu)(fu)蝕(shi)(shi)不(bu)斷的變化,穩(wen)定性(xing)差,使用(yong)壽命(ming)(ming)較(jiao)短(一(yi)般均在(zai)5年以下)每年還需檢(jian)測電阻(zu)阻(zu)值,工(gong)作量(liang)大(da)(da)。銅(tong)(tong)(tong)(tong)包鋼(gang)(gang)(gang)絞(jiao)線而(er)采用(yong)銅(tong)(tong)(tong)(tong)包金(jin)屬復合(he)材(cai)料做接(jie)(jie)地(di)(di)體及防(fang)雷導(dao)(dao)體,由于(yu)銅(tong)(tong)(tong)(tong)的金(jin)屬活潑(po)(po)性(xing)差,一(yi)般不(bu)會(hui)(hui)與(yu)酸、堿、鹽(yan)發(fa)生(sheng)反應(ying)。根據(ju)集膚(fu)效(xiao)應(ying),當表面(mian)(mian)銅(tong)(tong)(tong)(tong)層大(da)(da)于(yu)0.25mm時(shi),鋼(gang)(gang)(gang)芯載流很小(xiao),利用(yong)鋼(gang)(gang)(gang)的強度(du)將銅(tong)(tong)(tong)(tong)導(dao)(dao)體送(song)到(dao)地(di)(di)下,表面(mian)(mian)銅(tong)(tong)(tong)(tong)導(dao)(dao)體送(song)到(dao)地(di)(di)下,表面(mian)(mian)銅(tong)(tong)(tong)(tong)層不(bu)會(hui)(hui)發(fa)生(sheng)腐(fu)(fu)蝕(shi)(shi)現(xian)象(xiang)(xiang),因(yin)而(er)接(jie)(jie)地(di)(di)棒電阻(zu)不(bu)會(hui)(hui)隨著時(shi)間的推(tui)移發(fa)生(sheng)變化,可實現(xian)免維護,壽命(ming)(ming)一(yi)般可達(da)50年。
6、安裝便捷
水平連(lian)鑄銅包鋼接地產品采(cai)用放熱焊劑進行(xing)熔焊,接頭牢固、穩定性好,使用方便,能滿足特(te)殊場合低(di)阻值要(yao)求(qiu)。
銅包鋼絞線連接方法
1、首先要按設(she)計圖紙安裝好銅(tong)包鋼接(jie)地極,銅(tong)包鋼接(jie)地極之間距離要按要嚴格按照要求(qiu)擺(bai)設(she),打(da)入地下的(de)銅(tong)包鋼接(jie)地極尾(wei)部要一般(ban)高,不能相差(cha)太多。
2、然后(hou)沿銅(tong)(tong)包(bao)(bao)鋼(gang)接地(di)極鋪設銅(tong)(tong)包(bao)(bao)鋼(gang)絞線,一切準備(bei)工作完(wan)成后(hou)就開始為銅(tong)(tong)包(bao)(bao)鋼(gang)接地(di)極與銅(tong)(tong)包(bao)(bao)鋼(gang)絞線連(lian)接做準備(bei)。
3、接下(xia)來(lai)就是(shi)為連接做下(xia)一步準備,首(shou)先(xian)準備好放熱熔(rong)焊接模具(ju),焊粉,點火槍,清潔刷,等一切用具(ju)。
4、準備好后開(kai)始清潔銅(tong)包鋼絞線與(yu)銅(tong)包鋼接地極上(shang)的污染物(wu)。
5、連接采(cai)(cai)用(yong)(yong)采(cai)(cai)用(yong)(yong)高溫放熱(re)熔(rong)焊(han)接,焊(han)粉采(cai)(cai)用(yong)(yong)的高純(chun)度放熱(re)焊(han)粉,高純(chun)度放熱(re)焊(han)粉無殘留物,不(bu)會出(chu)現腐蝕性(xing)現象。表面(mian)銅層較厚(平(ping)均厚度大于0.3mm)耐腐性(xing)強,使用(yong)(yong)壽命長(大于30年(nian)),免維護(hu)。