熱浸鍍法(fa)(fa)可以生產(chan)高(gao)質量的(de)(de)(de)無氧(yang)銅(tong)(tong)鍍層鋼(gang)(gang)(gang)(gang)線材及(ji)銅(tong)(tong)合金鍍層鋼(gang)(gang)(gang)(gang)線材，銅(tong)(tong)層和(he)(he)鋼(gang)(gang)(gang)(gang)芯間的(de)(de)(de)結合力(li)好(hao)、可塑(su)性良好(hao)，生產(chan)的(de)(de)(de)銅(tong)(tong)包(bao)鋼(gang)(gang)(gang)(gang)線材的(de)(de)(de)銅(tong)(tong)附著比(bi)范(fan)圍(wei)較大，目前(qian)成為銅(tong)(tong)包(bao)鋼(gang)(gang)(gang)(gang)線材制造中(zhong)比(bi)較先進(jin)和(he)(he)具(ju)有(you)良好(hao)發(fa)展(zhan)前(qian)景的(de)(de)(de)工藝(yi)，但我(wo)(wo)國使用(yong)(yong)熱浸鍍法(fa)(fa)生產(chan)銅(tong)(tong)包(bao)鋼(gang)(gang)(gang)(gang)線材的(de)(de)(de)工藝(yi)還(huan)不成熟，生產(chan)廠家較少，有(you)待于(yu)進(jin)一步地(di)開(kai)發(fa)和(he)(he)推廣；用(yong)(yong)水平(ping)連鑄法(fa)(fa)生產(chan)銅(tong)(tong)覆鋼(gang)(gang)(gang)(gang)接地(di)材料具(ju)有(you)節省(sheng)人力(li)，自(zi)動化(hua)程度高(gao)，生產(chan)效率高(gao)等優點，但保溫(wen)、凝固和(he)(he)牽引的(de)(de)(de)工藝(yi)參(can)數(shu)必須(xu)相匹配，還(huan)有(you)待于(yu)繼(ji)續研(yan)究和(he)(he)開(kai)發(fa)。由于(yu)我(wo)(wo)國Ni、Cr資(zi)源匱乏，而且(qie)價格(ge)昂貴(gui)，所以我(wo)(wo)國發(fa)展(zhan)耐(nai)(nai)(nai)候(hou)鋼(gang)(gang)(gang)(gang)以Cu、P為基，加入國內富(fu)有(you)的(de)(de)(de)稀土(tu)元素，以提高(gao)鋼(gang)(gang)(gang)(gang)材的(de)(de)(de)耐(nai)(nai)(nai)大氣(qi)腐蝕性能。即(ji)發(fa)展(zhan)Cu—P—RE系(xi)(xi)列的(de)(de)(de)耐(nai)(nai)(nai)候(hou)鋼(gang)(gang)(gang)(gang)。由武漢鋼(gang)(gang)(gang)(gang)鐵公(gong)司(si)研(yan)制的(de)(de)(de)09CuPTiRE即(ji)為此(ci)系(xi)(xi)列的(de)(de)(de)耐(nai)(nai)(nai)候(hou)鋼(gang)(gang)(gang)(gang)之一，其(qi)耐(nai)(nai)(nai)大氣(qi)腐蝕性明顯(xian)優于(yu)普通(tong)碳素鋼(gang)(gang)(gang)(gang)，尤(you)其(qi)在受(shou)工業污染的(de)(de)(de)大氣(qi)和(he)(he)潮(chao)濕(shi)空(kong)氣(qi)中(zhong)為更佳(jia)。經過1.5～4年的(de)(de)(de)室外腐蝕試驗表明，其(qi)耐(nai)(nai)(nai)蝕性約為A3鋼(gang)(gang)(gang)(gang)的(de)(de)(de)1.5～2.6倍。銅(tong)(tong)覆鋼(gang)(gang)(gang)(gang)接地(di)材料降阻效果，就找(zhao)四川(chuan)健坤科技有(you)限(xian)公(gong)司(si)。陜西扁鋼(gang)(gang)(gang)(gang)商家

銅(tong)(tong)覆鋼(gang)圓(yuan)線(xian)(鍍(du)銅(tong)(tong)圓(yuan)鋼(gang))產品優點：銅(tong)(tong)層平均厚度(du)(du)≥0.25mm；平直度(du)(du)誤差(cha)≤1mm；抗拉強度(du)(du)≥300N/mm；銅(tong)(tong)層可(ke)塑性(xing)好(hao)，鍍(du)銅(tong)(tong)圓(yuan)鋼(gang)彎曲90度(du)(du)時，折(zhe)角(jiao)內外(wai)緣無裂(lie)縫現(xian)象。銅(tong)(tong)層結合(he)度(du)(du)好(hao)，經附著力(li)試驗，經軋(ya)尖機軋(ya)制，變形部分銅(tong)(tong)鋼(gang)結合(he)良好(hao)未出現(xian)開(kai)裂(lie)，剝(bo)離(li)現(xian)象。廣泛應用(yong)于石油、化工(gong)、電力(li)等酸(suan)、堿各類強腐蝕性(xing)土壤介質(zhi)。使用(yong)銅(tong)(tong)覆鋼(gang)接(jie)(jie)(jie)地(di)圓(yuan)線(xian)和利(li)用(yong)放(fang)熱焊(han)接(jie)(jie)(jie)（或稱熱熔(rong)焊(han)劑、火泥焊(han)接(jie)(jie)(jie)）連(lian)接(jie)(jie)(jie)來建造的(de)接(jie)(jie)(jie)地(di)裝(zhuang)置，我們可(ke)以看作是(shi)一個可(ke)靠、穩定(ding)，免維(wei)護的(de)銅(tong)(tong)質(zhi)地(di)網，無論(lun)其使用(yong)壽命、導電性(xing)能(neng)、網內電位差(cha)、工(gong)藝施(shi)工(gong)及投(tou)資(zi)成本都要比傳統熱鍍(du)鋅鋼(gang)建造的(de)接(jie)(jie)(jie)地(di)裝(zhuang)置優越得多(duo)。陜西扁鋼(gang)商家四(si)川健坤科技(ji)有限公司(si)為大家提供銅(tong)(tong)覆鋼(gang)接(jie)(jie)(jie)地(di)材(cai)料接(jie)(jie)(jie)地(di)材(cai)料。

富銅(tong)(tong)相的(de)(de)(de)(de)形成(cheng)(cheng)與加(jia)(jia)熱(re)溫(wen)(wen)度(du)(du)、加(jia)(jia)熱(re)速度(du)(du)及保溫(wen)(wen)時(shi)(shi)間等因素有關。當鋼(gang)坯(pi)加(jia)(jia)熱(re)溫(wen)(wen)度(du)(du)高于銅(tong)(tong)的(de)(de)(de)(de)熔(rong)點(dian)(1083℃),析出的(de)(de)(de)(de)富銅(tong)(tong)相處于熔(rong)融(rong)狀態,熔(rong)融(rong)的(de)(de)(de)(de)銅(tong)(tong)原(yuan)子(zi)沿奧(ao)氏體晶界(jie)(jie)擴展(zhan)，削弱了晶粒間的(de)(de)(de)(de)聯(lian)系。銅(tong)(tong)的(de)(de)(de)(de)強度(du)(du)和熔(rong)點(dian)都比鋼(gang)低很多，銅(tong)(tong)在(zai)(zai)鋼(gang)中(zhong)(zhong)沿晶界(jie)(jie)滲擴削弱了鋼(gang)中(zhong)(zhong)晶粒與晶粒之(zhi)間的(de)(de)(de)(de)聯(lian)系，達到一定程度(du)(du)時(shi)(shi),在(zai)(zai)變形過(guo)(guo)程中(zhong)(zhong)就會(hui)導(dao)致表(biao)(biao)(biao)面開裂(lie),形成(cheng)(cheng)“銅(tong)(tong)脆”缺(que)陷(xian)。熱(re)軋時(shi)(shi)銅(tong)(tong)比鐵(tie)難(nan)氧化(hua)，將銅(tong)(tong)加(jia)(jia)熱(re)到1100-1200℃，氧化(hua)性氣體與鋼(gang)坯(pi)發生(sheng)(sheng)氧化(hua)反應，使表(biao)(biao)(biao)層(ceng)(ceng)的(de)(de)(de)(de)鐵(tie)含量(liang)(liang)降(jiang)低，銅(tong)(tong)含量(liang)(liang)因而相對(dui)增加(jia)(jia)，直至(zhi)超過(guo)(guo)在(zai)(zai)鐵(tie)中(zhong)(zhong)的(de)(de)(de)(de)溶解度(du)(du)，銅(tong)(tong)在(zai)(zai)鱗(lin)皮下(xia)富集(ji)形成(cheng)(cheng)液態銅(tong)(tong)層(ceng)(ceng)并(bing)侵蝕晶界(jie)(jie)，沿晶界(jie)(jie)擴散(san)(san)，形成(cheng)(cheng)網絡(luo)狀富銅(tong)(tong)相，產生(sheng)(sheng)微(wei)裂(lie)紋，類似過(guo)(guo)燒(shao)樣龜裂(lie)狀裂(lie)紋缺(que)陷(xian)或密集(ji)分布的(de)(de)(de)(de)麻點(dian)狀表(biao)(biao)(biao)面缺(que)陷(xian),輕(qing)則(ze)影(ying)響鋼(gang)板(ban)表(biao)(biao)(biao)面質量(liang)(liang),重則(ze)造(zao)成(cheng)(cheng)鋼(gang)材報廢。含銅(tong)(tong)鋼(gang)對(dui)升溫(wen)(wen)速度(du)(du)也比較(jiao)(jiao)敏感(gan)，銅(tong)(tong)在(zai)(zai)高溫(wen)(wen)條件下(xia)的(de)(de)(de)(de)表(biao)(biao)(biao)現形式為滲透(tou)及擴散(san)(san)。滲透(tou)是指(zhi)銅(tong)(tong)向奧(ao)氏體晶界(jie)(jie)滲透(tou)的(de)(de)(de)(de)傾(qing)向，較(jiao)(jiao)強的(de)(de)(de)(de)滲透(tou)傾(qing)向導(dao)致銅(tong)(tong)在(zai)(zai)晶界(jie)(jie)富集(ji)，這是“銅(tong)(tong)脆”缺(que)陷(xian)產生(sheng)(sheng)的(de)(de)(de)(de)根(gen)本原(yuan)因；擴散(san)(san)是指(zhi)氧化(hua)物對(dui)銅(tong)(tong)的(de)(de)(de)(de)吸收(shou)能力(li)及銅(tong)(tong)在(zai)(zai)基體中(zhong)(zhong)的(de)(de)(de)(de)擴散(san)(san)能力(li)，這種擴散(san)(san)危(wei)害不大。要防止“銅(tong)(tong)脆”必須減緩銅(tong)(tong)在(zai)(zai)高溫(wen)(wen)下(xia)的(de)(de)(de)(de)滲透(tou)行為，這就要求嚴格控制加(jia)(jia)熱(re)工藝(yi)。

當變電站發(fa)生故(gu)障(zhang)(zhang)或(huo)遭到(dao)雷擊時，冷鍍(du)銅(tong)覆鋼接地(di)材(cai)料(liao)通過非(fei)常大(da)的(de)(de)(de)故(gu)障(zhang)(zhang)電流(liu)或(huo)雷電流(liu)，導(dao)體(ti)本身發(fa)熱而產(chan)生大(da)量的(de)(de)(de)氣(qi)泡，通過故(gu)障(zhang)(zhang)電流(liu)的(de)(de)(de)電鍍(du)銅(tong)覆鋼表層(ceng)(ceng)往往會產(chan)生裂紋等(deng)缺陷。國(guo)(guo)家(jia)關于銅(tong)覆鋼鍍(du)銅(tong)層(ceng)(ceng)厚度(du)要求(qiu)較低(di)，銅(tong)層(ceng)(ceng)厚度(du)≥0.254mm即(ji)可(ke)，各個生產(chan)廠家(jia)的(de)(de)(de)鍍(du)銅(tong)工藝參(can)差不齊等(deng)多種原(yuan)因導(dao)致(zhi)了(le)銅(tong)覆鋼材(cai)料(liao)在電力系(xi)統未(wei)得(de)到(dao)廣泛(fan)(fan)應用。在接地(di)材(cai)料(liao)的(de)(de)(de)發(fa)展(zhan)過程(cheng)中(zhong)，國(guo)(guo)內已(yi)有部分公司對熱鑄銅(tong)覆鋼接地(di)導(dao)體(ti)材(cai)料(liao)進行了(le)相關的(de)(de)(de)研究，由于前文所述(shu)的(de)(de)(de)加工工藝等(deng)原(yuan)因，一些(xie)技術性(xing)問(wen)題未(wei)得(de)到(dao)根本解決(jue)，暫未(wei)得(de)到(dao)廣泛(fan)(fan)應用。銅(tong)覆鋼接地(di)材(cai)料(liao)耐腐蝕嗎，就找(zhao)四川健坤科(ke)技有限公司。

變(bian)電(dian)(dian)站(zhan)(zhan)的防雷(lei)接(jie)(jie)地(di)(di)系(xi)統是(shi)(shi)(shi)結(jie)合(he)防雷(lei)接(jie)(jie)地(di)(di)、工作接(jie)(jie)地(di)(di)和(he)保護(hu)接(jie)(jie)地(di)(di)為一體的有機整體，其主要(yao)功(gong)能(neng)首先是(shi)(shi)(shi)保證電(dian)(dian)氣(qi)設備(bei)發生故障時運(yun)(yun)行(xing)人員(yuan)的人身全，其次是(shi)(shi)(shi)保證重要(yao)電(dian)(dian)氣(qi)設備(bei)本(ben)體的安全可(ke)靠(kao)運(yun)(yun)行(xing)，避免不必要(yao)的經濟(ji)損失。2000年以后，銅(tong)(tong)覆(fu)鋼接(jie)(jie)地(di)(di)材(cai)料(liao)(liao)作為接(jie)(jie)地(di)(di)材(cai)料(liao)(liao)慢慢被業界認可(ke)并得到不斷的嘗試和(he)應用(yong)；但由于國內(nei)(nei)對此方面的研(yan)究(jiu)不夠(gou)充足(zu)，且相(xiang)關制約的規范(fan)及標準未(wei)形成，導致銅(tong)(tong)覆(fu)鋼材(cai)料(liao)(liao)質量參差不齊，銅(tong)(tong)層脫落、厚度不足(zu)、加速(su)腐蝕等(deng)問(wen)題時常發生，嚴(yan)重威脅著(zhu)變(bian)電(dian)(dian)站(zhan)(zhan)的安全可(ke)靠(kao)運(yun)(yun)行(xing)。目(mu)前國內(nei)(nei)變(bian)電(dian)(dian)站(zhan)(zhan)接(jie)(jie)地(di)(di)網(wang)材(cai)料(liao)(liao)主要(yao)還(huan)是(shi)(shi)(shi)熱鍍鋅(xin)鋼和(he)純銅(tong)(tong)材(cai)料(liao)(liao)兩(liang)種，同(tong)時銅(tong)(tong)覆(fu)鋼等(deng)新(xin)材(cai)料(liao)(liao)的研(yan)究(jiu)還(huan)在繼續。銅(tong)(tong)覆(fu)鋼接(jie)(jie)地(di)(di)材(cai)料(liao)(liao)抗扭性能(neng)，就找(zhao)四(si)川(chuan)健坤科技(ji)有限公(gong)司。四(si)川(chuan)鍍銅(tong)(tong)鋼棒費用(yong)

銅(tong)覆鋼(gang)接地材料銅(tong)層厚(hou)度，就找四川健坤科技有限公司。陜西扁(bian)鋼(gang)商家(jia)

鍍(du)鋅(xin)鋼(gang)(gang)和(he)(he)銅覆鋼(gang)(gang)接地材料隨土壤(rang)厚度的變化(hua)規(gui)律相(xiang)同(tong)：當一(yi)層(ceng)(ceng)(ceng)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)率大(da)于(yu)(yu)二(er)層(ceng)(ceng)(ceng)時，沖(chong)擊(ji)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)和(he)(he)厚度呈(cheng)(cheng)正相(xiang)關(guan)(guan)關(guan)(guan)系；當一(yi)層(ceng)(ceng)(ceng)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)率小于(yu)(yu)二(er)層(ceng)(ceng)(ceng)時，沖(chong)擊(ji)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)值(zhi)(zhi)和(he)(he)厚度呈(cheng)(cheng)反相(xiang)關(guan)(guan)關(guan)(guan)系；但無論是(shi)一(yi)層(ceng)(ceng)(ceng)還是(shi)二(er)層(ceng)(ceng)(ceng)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)率大(da)，當厚度增(zeng)加到一(yi)定(ding)程度時，沖(chong)擊(ji)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)阻(zu)(zu)(zu)值(zhi)(zhi)趨于(yu)(yu)穩定(ding)。沖(chong)擊(ji)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)阻(zu)(zu)(zu)值(zhi)(zhi)的特(te)性(xing)(xing)和(he)(he)工(gong)頻電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)阻(zu)(zu)(zu)值(zhi)(zhi)隨一(yi)層(ceng)(ceng)(ceng)土壤(rang)厚度變化(hua)的特(te)性(xing)(xing)一(yi)致(zhi)。在(zai)外界條件相(xiang)同(tong)的情況(kuang)下，銅覆鋼(gang)(gang)的工(gong)頻接地電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)小于(yu)(yu)鍍(du)鋅(xin)鋼(gang)(gang)；其次，二(er)者工(gong)頻接地電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)特(te)性(xing)(xing)一(yi)致(zhi)，均(jun)與雙層(ceng)(ceng)(ceng)土壤(rang)中一(yi)層(ceng)(ceng)(ceng)土壤(rang)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)率成線性(xing)(xing)關(guan)(guan)系，且受(shou)一(yi)層(ceng)(ceng)(ceng)土壤(rang)厚度影響，但增(zeng)加或(huo)減少的速率會慢慢下降并(bing)趨于(yu)(yu)穩定(ding)；鍍(du)鋅(xin)鋼(gang)(gang)和(he)(he)銅覆鋼(gang)(gang)的沖(chong)擊(ji)接地電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)特(te)性(xing)(xing)基本相(xiang)同(tong)，由于(yu)(yu)涂(tu)層(ceng)(ceng)(ceng)較薄，內導體鋼(gang)(gang)芯磁導率較大(da)，沖(chong)擊(ji)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)特(te)性(xing)(xing)以鋼(gang)(gang)為主導。陜(shan)西扁鋼(gang)(gang)商家

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