碲銅的介紹及用途：
先了解一(yi)下(xia)碲(di)(di)(di)銅(tong)(tong)(tong)：納入(ru)GB/T5233-2001標準中(zhong)的(de)碲(di)(di)(di)銅(tong)(tong)(tong)為QTe0.5，等同于(yu)美國的(de)銅(tong)(tong)(tong)合(he)金C14500，其成(cheng)分（%）為：0.40~0.7Te，0.004~0.012P，99.90（含Te+Su）Cu。碲(di)(di)(di)在(zai)銅(tong)(tong)(tong)中(zhong)的(de)固(gu)溶度，800℃時(shi)不超過(guo)0.01%，碲(di)(di)(di)對銅(tong)(tong)(tong)的(de)電(dian)導率(lv)(lv)及(ji)熱導率(lv)(lv)的(de)影響很小(xiao)。碲(di)(di)(di)以彌散的(de)獨立相(xiang)Cu2Te存(cun)在(zai)于(yu)銅(tong)(tong)(tong)中(zhong)，使(shi)(shi)切屑易斷(duan)，提高銅(tong)(tong)(tong)的(de)切削(xue)性能。為減少(shao)碲(di)(di)(di)銅(tong)(tong)(tong)的(de)脆性，Te含量(liang)不應(ying)大(da)于(yu)0.7%，并在(zai)淬火(huo)和(he)加工狀態下(xia)使(shi)(shi)用(yong)。不回火(huo)，因為回火(huo)（600℃左右）時(shi)Cu2Te會沿晶界(jie)析出，使(shi)(shi)材料變(bian)脆。碲(di)(di)(di)使(shi)(shi)銅(tong)(tong)(tong)的(de)可焊性能惡化。
了解了碲(di)銅(tong)之(zhi)后，再來看一下(xia)碲(di)銅(tong)棒(bang)，碲(di)銅(tong)棒(bang)是(shi)(shi)一種較為重(zhong)(zhong)要(yao)的(de)金屬材(cai)(cai)料，是(shi)(shi)用(yong)碲(di)青銅(tong)擠制或拉制棒(bang)材(cai)(cai)。在許多(duo)方(fang)面都有著(zhu)非常重(zhong)(zhong)要(yao)的(de)作用(yong)，缺他(ta)不可。例如：制造(zao)電(dian)子電(dian)器、儀表儀器、自動控制、通訊系統、航天(tian)航空、軍工(gong)配套等(deng)產品(pin)零件的(de)最佳(jia)材(cai)(cai)料，既(ji)有高導電(dian)率，高切削性能和抗腐蝕的(de)優點(dian)，又是(shi)(shi)無鉛無鎘的(de)環保型材(cai)(cai)料，有圓、方(fang)、六角(jiao)等(deng)多(duo)種形(xing)狀。
碲銅棒的用途：
碲銅棒的(de)主要用途：用于(yu)電(dian)導率、可切削性、抗蝕性高的(de)零件，如電(dian)氣接插件、汽車(che)零件、開關零件、管(guan)件、釬焊頭、焊炬(ju)頭、晶體管(guan)基極和爐內組裝件。
