t2紫銅棒(bang)顧名思義是紫銅家族(zu)中(zhong)的(de)其中(zhong)一個(ge)種(zhong)類,t2紫銅棒(bang)的(de)材料介(jie)紹
材料名稱:t2紫銅棒 標準:(GB/T5231-2001) 特性及適用范圍:有(you)良好的導(dao)(dao)電.導(dao)(dao)熱.耐蝕和(he)加工性能,可以焊(han)接和(he)纖(xian)焊(han)。含降低導(dao)(dao)電.導(dao)(dao)熱性的雜(za)質較少,微(wei)量的氧(yang)對導(dao)(dao)電.導(dao)(dao)熱和(he)加工等性能影響不大,但易引(yin)起“氫病”,不宜(yi)在高溫(如>370°)還原性氣(qi)氛中加工(退火.焊(han)接等)和(he)使用。
化學成分及力學性能
化學成分:
Cu+Ag: 99.90
Sb: 0.002
As: 0.002
Fe: 0.005
Pb: 0.005
S: 0.005
力學性能:
抗拉強度:(Rm/MPa)≥295 伸長率:(%)≥3
t2紫(zi)(zi)銅(tong)棒就是銅(tong)單質,因其(qi)顏色為(wei)紫(zi)(zi)紅(hong)色而得名。各(ge)種性(xing)質見銅(tong)。紫(zi)(zi)銅(tong)就是工業純銅(tong),其(qi)熔點為(wei)1083℃,無(wu)同(tong)素異構轉變,相對(dui)密度為(wei)8.9,為(wei)鎂的(de)五(wu)倍。比普(pu)通鋼(gang)還重(zhong)約(yue)15%。其(qi)具有(you)玫瑰紅(hong)色,表面形成(cheng)氧(yang)化膜后呈紫(zi)(zi)色,故一般稱(cheng)為(wei)紫(zi)(zi)銅(tong)。它是含有(you)一定氧(yang)的(de)銅(tong),因而又(you)稱(cheng)含氧(yang)銅(tong)。
1.t2紫銅棒(bang)的性質
紫(zi)(zi)銅(tong)(tong)(tong)(tong)因(yin)呈紫(zi)(zi)紅色而得名(ming)。它不一定(ding)是純銅(tong)(tong)(tong)(tong),有(you)(you)時還加入(ru)少(shao)(shao)量脫(tuo)氧(yang)元素或其(qi)他(ta)(ta)元素,以(yi)改善材(cai)質和性能因(yin)此也歸入(ru)銅(tong)(tong)(tong)(tong)合金。中(zhong)國(guo)紫(zi)(zi)銅(tong)(tong)(tong)(tong)加工(gong)材(cai)按成(cheng)分可(ke)分為:普通(tong)紫(zi)(zi)銅(tong)(tong)(tong)(tong)(T1、T2、T3、T4)、無氧(yang)銅(tong)(tong)(tong)(tong)(TU1、TU2和高純、真空無氧(yang)銅(tong)(tong)(tong)(tong))、脫(tuo)氧(yang)銅(tong)(tong)(tong)(tong)(TUP、TUMn)、添加少(shao)(shao)量合金元素的(de)特種(zhong)銅(tong)(tong)(tong)(tong)(砷銅(tong)(tong)(tong)(tong)、碲銅(tong)(tong)(tong)(tong)、銀(yin)銅(tong)(tong)(tong)(tong))四類(lei)。紫(zi)(zi)銅(tong)(tong)(tong)(tong)的(de)電(dian)導(dao)率(lv)和熱導(dao)率(lv)僅次于銀(yin),廣(guang)泛用于制(zhi)作導(dao)電(dian)、導(dao)熱器材(cai)。紫(zi)(zi)銅(tong)(tong)(tong)(tong)在大氣、海水和某些非氧(yang)化性酸(suan)(鹽酸(suan)、稀(xi)硫酸(suan))、堿、鹽溶液及多種(zhong)有(you)(you)機酸(suan)(醋酸(suan)、檸(ning)檬(meng)酸(suan))中(zhong),有(you)(you)良好的(de)耐蝕性,用于化學工(gong)業。另外,紫(zi)(zi)銅(tong)(tong)(tong)(tong)有(you)(you)良好的(de)焊接性,可(ke)經冷、熱塑性加工(gong)制(zhi)成(cheng)各種(zhong)半成(cheng)品和成(cheng)品。20世紀70年代,紫(zi)(zi)銅(tong)(tong)(tong)(tong)的(de)產(chan)量超過了其(qi)他(ta)(ta)各類(lei)銅(tong)(tong)(tong)(tong)合金的(de)總產(chan)量。
t2紫銅棒中的微量雜質對銅的導電、導熱性能有嚴重影響。其中鈦、磷、鐵、硅等顯著降低電導率,而鎘、鋅等則影響很小。氧、硫、硒、碲等在銅中的固溶度很小,可與銅生成脆性化合物,對導電性影響不大,但能降低加工塑性。普通紫銅在含氫或一氧化碳的還原性氣氛中加熱時,氫或一氧化碳易與晶界的氧化亞銅(Cu2O)作用,產生高壓水蒸氣或二氧化碳氣體,可使銅破裂。這種現象常稱為銅的“氫病”。 具有優良的導電性﹑導熱性﹑延展性和耐蝕性。主要用于制作發電機﹑母線﹑電纜﹑開關裝置﹑變壓器等電工器材和熱交換器﹑管道﹑太陽能加熱裝置的平板集熱器等導熱器材。常用的銅合金分為黃銅﹑青銅﹑白銅3大類。
純凈的銅是紫紅色的金屬,俗(su)稱(cheng)“紫(zi)銅”、“紅銅”或(huo)“赤銅”。 紫(zi)銅富(fu)有延(yan)展性。象一滴(di)水(shui)那么大小(xiao)的(de)(de)純(chun)銅,可拉成(cheng)長達兩(liang)公里的(de)(de)細絲,或(huo)壓延(yan)成(cheng)比床還大的(de)(de)幾乎(hu)透(tou)明的(de)(de)箔(bo)。紫(zi)銅最可貴的(de)(de)性質是導(dao)電(dian)性能非(fei)常好,在所有的(de)(de)金屬(shu)中僅次(ci)于(yu)銀(yin)。但銅比銀(yin)便宜得多,因(yin)此成(cheng)了電(dian)氣(qi)工業(ye)的(de)(de)“主角(jiao)”。
2.t2紫(zi)銅(tong)棒的用(yong)途
紫銅的用途比純鐵廣泛得多,每年有50%的銅被電解提純為純銅,用于電氣工業。這里所說的紫銅,確實要非常純,含銅達99.95%以上才行。極少量的雜質,特別是磷、砷、鋁等,會大大降低銅的導電率。銅中含氧(煉銅時容易混入少量氧)對導電率影響很大,用于電氣工業的銅一般都必須是無氧銅。另外,鉛、銻(ti)、鉍等雜質會使(shi)銅(tong)的結晶不能結合在一(yi)起,造成(cheng)熱脆(cui),也會影響(xiang)純(chun)銅(tong)的加工。
t2紫銅棒是(shi)比較純凈的(de)一(yi)種銅,一(yi)般(ban)可近似認為是(shi)純銅,導電性、塑(su)性都(dou)較好(hao),但強度(du)、硬度(du)較差一(yi)些(xie)。