碲銅的介紹及用途：
先(xian)了解一下碲(di)(di)銅(tong)(tong)(tong)(tong)：納(na)入GB/T5233-2001標準中(zhong)的(de)碲(di)(di)銅(tong)(tong)(tong)(tong)為QTe0.5，等同于美國的(de)銅(tong)(tong)(tong)(tong)合金C14500，其成(cheng)分（%）為：0.40~0.7Te，0.004~0.012P，99.90（含(han)(han)Te+Su）Cu。碲(di)(di)在銅(tong)(tong)(tong)(tong)中(zhong)的(de)固溶(rong)度，800℃時(shi)不(bu)超過0.01%，碲(di)(di)對(dui)銅(tong)(tong)(tong)(tong)的(de)電導率及熱導率的(de)影響很小。碲(di)(di)以(yi)彌散的(de)獨立(li)相Cu2Te存在于銅(tong)(tong)(tong)(tong)中(zhong)，使(shi)切(qie)屑易斷，提高銅(tong)(tong)(tong)(tong)的(de)切(qie)削(xue)性能。為減少碲(di)(di)銅(tong)(tong)(tong)(tong)的(de)脆(cui)性，Te含(han)(han)量(liang)不(bu)應大(da)于0.7%，并(bing)在淬火(huo)和(he)加工狀態下使(shi)用(yong)。不(bu)回(hui)火(huo)，因為回(hui)火(huo)（600℃左右）時(shi)Cu2Te會沿晶界析出，使(shi)材料變(bian)脆(cui)。碲(di)(di)使(shi)銅(tong)(tong)(tong)(tong)的(de)可(ke)焊性能惡化(hua)。
了解了碲(di)銅(tong)之后，再來看一下碲(di)銅(tong)棒(bang)(bang)，碲(di)銅(tong)棒(bang)(bang)是(shi)一種較為重要的(de)金屬材(cai)料(liao)，是(shi)用碲(di)青銅(tong)擠制(zhi)或拉(la)制(zhi)棒(bang)(bang)材(cai)。在許多方面都有(you)著(zhu)非常重要的(de)作用，缺他(ta)不可。例如：制(zhi)造電(dian)子電(dian)器(qi)、儀表(biao)儀器(qi)、自動控制(zhi)、通訊(xun)系統(tong)、航(hang)天航(hang)空、軍工配套等產品零(ling)件的(de)最佳材(cai)料(liao)，既有(you)高(gao)導(dao)電(dian)率，高(gao)切削(xue)性能和抗腐蝕的(de)優點，又是(shi)無鉛無鎘的(de)環保型材(cai)料(liao)，有(you)圓、方、六角等多種形狀。
碲銅棒的用途：
碲銅棒的主要用途：用于電導(dao)率、可切削(xue)性、抗蝕性高的零件(jian)，如電氣接插件(jian)、汽車(che)零件(jian)、開關(guan)零件(jian)、管(guan)件(jian)、釬焊頭(tou)、焊炬(ju)頭(tou)、晶體管(guan)基極和爐內組裝件(jian)。
