t2紫銅板(ban)顧(gu)名思義(yi)是紫銅家族中(zhong)的其中(zhong)一個種類,t2紫銅板(ban)的材料介(jie)紹
材(cai)料名(ming)稱(cheng):t2紫銅(tong)板 標準:(GB/T5231-2001) 特性(xing)(xing)(xing)及適用范圍:有良好的(de)導電.導熱(re)(re).耐蝕和(he)(he)(he)加工性(xing)(xing)(xing)能,可(ke)以焊(han)接和(he)(he)(he)纖焊(han)。含降(jiang)低(di)導電.導熱(re)(re)性(xing)(xing)(xing)的(de)雜質較少(shao),微量的(de)氧(yang)對導電.導熱(re)(re)和(he)(he)(he)加工等性(xing)(xing)(xing)能影響不大,但易引(yin)起“氫(qing)病”,不宜在(zai)高(gao)溫(如>370°)還原性(xing)(xing)(xing)氣氛中加工(退火.焊(han)接等)和(he)(he)(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)銅(tong)棒就是(shi)(shi)銅(tong)單質(zhi),因其顏(yan)色為(wei)紫(zi)紅(hong)色而(er)得名。各種性質(zhi)見銅(tong)。紫(zi)銅(tong)就是(shi)(shi)工業純銅(tong),其熔點為(wei)1083℃,無同素異構轉變,相(xiang)對(dui)密度為(wei)8.9,為(wei)鎂(mei)的五倍。比普通鋼還(huan)重約15%。其具(ju)有(you)玫瑰(gui)紅(hong)色,表(biao)面形成氧(yang)化膜后(hou)呈紫(zi)色,故一(yi)般稱為(wei)紫(zi)銅(tong)。它是(shi)(shi)含(han)(han)有(you)一(yi)定氧(yang)的銅(tong),因而(er)又(you)稱含(han)(han)氧(yang)銅(tong)。
1.t2紫銅(tong)板的性質
紫(zi)(zi)銅(tong)(tong)(tong)(tong)因呈(cheng)紫(zi)(zi)紅色而得(de)名。它不(bu)一(yi)定是純銅(tong)(tong)(tong)(tong),有(you)時還加(jia)入少量脫(tuo)氧(yang)(yang)元素或其(qi)他元素,以(yi)改善(shan)材(cai)(cai)質和(he)(he)性能因此(ci)也(ye)歸入銅(tong)(tong)(tong)(tong)合(he)金。中(zhong)國紫(zi)(zi)銅(tong)(tong)(tong)(tong)加(jia)工(gong)材(cai)(cai)按成分(fen)可分(fen)為:普通紫(zi)(zi)銅(tong)(tong)(tong)(tong)(T1、T2、T3、T4)、無氧(yang)(yang)銅(tong)(tong)(tong)(tong)(TU1、TU2和(he)(he)高純、真空無氧(yang)(yang)銅(tong)(tong)(tong)(tong))、脫(tuo)氧(yang)(yang)銅(tong)(tong)(tong)(tong)(TUP、TUMn)、添(tian)加(jia)少量合(he)金元素的特種(zhong)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(lei)。紫(zi)(zi)銅(tong)(tong)(tong)(tong)的電導率和(he)(he)熱導率僅次于銀,廣泛(fan)用于制(zhi)(zhi)作導電、導熱器材(cai)(cai)。紫(zi)(zi)銅(tong)(tong)(tong)(tong)在大氣、海水(shui)和(he)(he)某(mou)些非氧(yang)(yang)化性酸(鹽(yan)(yan)酸、稀(xi)硫酸)、堿、鹽(yan)(yan)溶液及多種(zhong)有(you)機酸(醋(cu)酸、檸檬酸)中(zhong),有(you)良好(hao)的耐蝕性,用于化學(xue)工(gong)業(ye)。另外,紫(zi)(zi)銅(tong)(tong)(tong)(tong)有(you)良好(hao)的焊接性,可經冷、熱塑性加(jia)工(gong)制(zhi)(zhi)成各種(zhong)半成品和(he)(he)成品。20世紀(ji)70年代,紫(zi)(zi)銅(tong)(tong)(tong)(tong)的產量超(chao)過了其(qi)他各類(lei)銅(tong)(tong)(tong)(tong)合(he)金的總產量。
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(bai)銅3大(da)類(lei)。
純凈的銅是紫紅色的金屬,俗稱“紫銅(tong)(tong)”、“紅銅(tong)(tong)”或(huo)“赤銅(tong)(tong)”。 紫銅(tong)(tong)富有(you)延展性。象一滴水那么大小的(de)(de)(de)純銅(tong)(tong),可(ke)拉成長(chang)達兩公里的(de)(de)(de)細絲,或(huo)壓延成比床還大的(de)(de)(de)幾乎透明的(de)(de)(de)箔。紫銅(tong)(tong)最(zui)可(ke)貴的(de)(de)(de)性質是(shi)導(dao)電性能非常好,在所有(you)的(de)(de)(de)金屬中僅次(ci)于銀。但(dan)銅(tong)(tong)比銀便宜得多(duo),因此成了電氣(qi)工業的(de)(de)(de)“主角(jiao)”。
2.t2紫銅板的用途
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、鉍等雜質會(hui)使銅的結晶不(bu)能結合在一起(qi),造(zao)成熱脆,也會(hui)影響純銅的加工。
t2紫銅(tong)棒是比(bi)較純凈的一種銅(tong),一般可(ke)近似認為(wei)是純銅(tong),導(dao)電性、塑(su)性都較好,但強度、硬度較差一些。