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銅業十大品牌是由CN10排排榜技術研究部門和CNPP品牌數據研究部門聯合重磅推出的銅業品牌排行榜,榜單由品牌數據研究部門基于大數據統計及人為根據市場和參數條件變化的分析研究專業測評而得出,是大數據、云計算、數據統計真實客觀呈現的結果。名單以企業實力、品牌榮譽、網絡投票、網民口碑打分、企業在行業內的排名情況、企業獲得的榮譽及獎勵情況等為基礎,綜合了多家機構媒體和網站排行數據,通過特定的計算機模型對廣泛的數據資源進行采集分析研究,并由研究人員綜合考慮市場和參數條件變化后最終才形成數據并在網站顯示。
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銅業行業簡介

一、銅是什么

銅(tong)(Cuprum)是(shi)一種(zhong)金(jin)屬元素(su),也(ye)是(shi)一種(zhong)過渡元素(su),化學符(fu)號Cu,英(ying)文copper,原子序數29。純銅(tong)是(shi)柔軟的(de)金(jin)屬,表(biao)面剛切開時(shi)為紅橙(cheng)色帶金(jin)屬光澤,單質呈(cheng)紫紅色。延展性好,導熱(re)性和導電(dian)(dian)性高,因此在電(dian)(dian)纜和電(dian)(dian)氣、電(dian)(dian)子元件是(shi)最常用(yong)的(de)材料(liao),也(ye)可(ke)用(yong)作建(jian)筑材料(liao),可(ke)以組(zu)成眾多種(zhong)合(he)金(jin)。銅(tong)合(he)金(jin)機械性能(neng)優(you)異,電(dian)(dian)阻率很低,其中最重要的(de)數青銅(tong)和黃銅(tong)。此外,銅(tong)也(ye)是(shi)耐用(yong)的(de)金(jin)屬,可(ke)以多次回收(shou)而無(wu)損(sun)其機械性能(neng)。

二、銅的種類及用途

銅的種(zhong)類主要(yao)有紫銅,黃銅,青銅和白銅四種(zhong)。

1、紫銅

又名紅銅(tong)(tong)(tong)(tong),是銅(tong)(tong)(tong)(tong)單質(zhi),因其具有(you)玫瑰紅色(se),表面(mian)形成氧化(hua)膜后呈紫(zi)(zi)色(se),故一般稱(cheng)為紫(zi)(zi)銅(tong)(tong)(tong)(tong)。中國紫(zi)(zi)銅(tong)(tong)(tong)(tong)加工材按(an)成分可分為:普通紫(zi)(zi)銅(tong)(tong)(tong)(tong)(T1、T2、T3、T4)、無氧銅(tong)(tong)(tong)(tong)(TU1、TU2和高純、真空無氧銅(tong)(tong)(tong)(tong))、脫氧銅(tong)(tong)(tong)(tong)(TUP、TUMn)、添加少量合金元素的特種銅(tong)(tong)(tong)(tong)(砷銅(tong)(tong)(tong)(tong)、碲銅(tong)(tong)(tong)(tong)、銀銅(tong)(tong)(tong)(tong))四類。紫(zi)(zi)銅(tong)(tong)(tong)(tong)具有(you)很好的導(dao)(dao)電(dian)(dian)(dian)性和導(dao)(dao)熱性,塑性極好,易于熱壓(ya)和冷壓(ya)力加工,大量用(yong)于制(zhi)造電(dian)(dian)(dian)線、電(dian)(dian)(dian)纜、電(dian)(dian)(dian)刷、電(dian)(dian)(dian)火花專用(yong)電(dian)(dian)(dian)蝕銅(tong)(tong)(tong)(tong)等要求導(dao)(dao)電(dian)(dian)(dian)性良好的產(chan)品。

2、黃銅

黃(huang)(huang)銅(tong)是由(you)銅(tong)和鋅(xin)(xin)所組成(cheng)的(de)(de)合(he)金(jin),具(ju)有(you)美(mei)觀(guan)的(de)(de)黃(huang)(huang)色。由(you)銅(tong)、鋅(xin)(xin)組成(cheng)的(de)(de)黃(huang)(huang)銅(tong)就叫作普通黃(huang)(huang)銅(tong),如果是由(you)二種以上(shang)的(de)(de)元素組成(cheng)的(de)(de)多種合(he)金(jin)就稱為特(te)殊黃(huang)(huang)銅(tong)。黃(huang)(huang)銅(tong)有(you)較(jiao)強的(de)(de)耐磨(mo)性能,常被用于制造閥(fa)門、水管、空調內(nei)外機連接管和散熱(re)器等。

3、青銅

青(qing)銅(tong)(tong)是金屬冶(ye)鑄(zhu)史(shi)上最早的(de)合金,在純(chun)銅(tong)(tong)(紫銅(tong)(tong))中(zhong)加(jia)入錫(xi)或鉛的(de)合金,有特(te)殊重要性(xing)和歷史(shi)意義,主要品種有錫(xi)青(qing)銅(tong)(tong)、鋁青(qing)銅(tong)(tong)、特(te)殊青(qing)銅(tong)(tong)(又稱高銅(tong)(tong)合金)。與純(chun)銅(tong)(tong)(紫銅(tong)(tong))相比,青(qing)銅(tong)(tong)強度高且(qie)熔點(dian)低(25%的(de)錫(xi)冶(ye)煉青(qing)銅(tong)(tong),熔點(dian)就會降低到800℃。純(chun)銅(tong)(tong)(紫銅(tong)(tong))的(de)熔點(dian)為1083℃)。青(qing)銅(tong)(tong)鑄(zhu)造(zao)性(xing)好,耐磨(mo)且(qie)化學(xue)性(xing)質穩定,適用于鑄(zhu)造(zao)各種器具、機械零件(jian)、軸承(cheng)、齒輪等。

4、白銅

白(bai)(bai)銅(tong)(tong)是以鎳為(wei)主要添(tian)加元素(su)的(de)銅(tong)(tong)基合金(jin),呈銀白(bai)(bai)色(se),有(you)金(jin)屬(shu)光(guang)澤,故名(ming)白(bai)(bai)銅(tong)(tong)。銅(tong)(tong)鎳之間彼此(ci)可(ke)無限(xian)固溶,從而形(xing)成連(lian)續固溶體(ti),即不(bu)論彼此(ci)的(de)比例多少,而恒為(wei)α-單(dan)相合金(jin)。當把鎳熔入紅銅(tong)(tong)里(li),含(han)(han)量超(chao)過16%以上時,產生的(de)合金(jin)色(se)澤就變得潔(jie)白(bai)(bai)如銀,鎳含(han)(han)量越高,顏色(se)越白(bai)(bai)。白(bai)(bai)銅(tong)(tong)中鎳的(de)含(han)(han)量一般為(wei)25%。

銅(tong)鎳二(er)元合(he)金稱(cheng)普通白(bai)銅(tong);加有錳、鐵、鋅、鋁等元素(su)的(de)白(bai)銅(tong)合(he)金稱(cheng)復雜白(bai)銅(tong)。工(gong)業用白(bai)銅(tong)分(fen)為結(jie)構白(bai)銅(tong)和電(dian)(dian)工(gong)白(bai)銅(tong)兩(liang)大類。結(jie)構白(bai)銅(tong)的(de)特(te)點是機械(xie)性(xing)能(neng)和耐蝕性(xing)好(hao)(hao),色澤美(mei)觀(guan)。這種白(bai)銅(tong)廣泛用於(wu)制(zhi)造精(jing)密(mi)(mi)(mi)機械(xie)、化工(gong)機械(xie)和船舶構件。電(dian)(dian)工(gong)白(bai)銅(tong)一般有良好(hao)(hao)的(de)熱電(dian)(dian)性(xing)能(neng)。錳銅(tong)、康銅(tong)、考銅(tong)是含錳量不(bu)同的(de)錳白(bai)銅(tong),是制(zhi)造精(jing)密(mi)(mi)(mi)電(dian)(dian)工(gong)儀(yi)器(qi)、變阻(zu)器(qi)、精(jing)密(mi)(mi)(mi)電(dian)(dian)阻(zu)、應變片、熱電(dian)(dian)偶等用的(de)材(cai)料。

三、黃銅青銅紫銅白銅哪個貴

在價(jia)格方面,紫銅最(zui)(zui)貴(gui),白銅次之,隨后是青銅,最(zui)(zui)便宜(yi)的是黃銅。不過最(zui)(zui)便宜(yi)的也要(yao)比鐵(tie)貴(gui)出幾倍(bei)。

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