以(yi)錫(xi)為主要(yao)合(he)金元素(su)的(de)(de)(de)(de)青(qing)(qing)銅(tong)。含錫(xi)量一般在3~14%之間(jian),主要(yao)用(yong)于制作(zuo)彈性(xing)(xing)(xing)(xing)元件和(he)(he)耐(nai)磨(mo)零件。變形(xing)錫(xi)青(qing)(qing)銅(tong)的(de)(de)(de)(de)含錫(xi)量不超過 8%,有時還添加(jia)磷、鉛、鋅等元素(su)。磷是良好(hao)的(de)(de)(de)(de)脫氧劑,還能(neng)(neng)(neng)(neng)改(gai)(gai)善流(liu)動(dong)性(xing)(xing)(xing)(xing)和(he)(he)耐(nai)磨(mo)性(xing)(xing)(xing)(xing)。錫(xi)青(qing)(qing)銅(tong)中加(jia)鉛可(ke)改(gai)(gai)善可(ke)切削性(xing)(xing)(xing)(xing)和(he)(he)耐(nai)磨(mo)性(xing)(xing)(xing)(xing),加(jia)鋅可(ke)改(gai)(gai)善鑄造性(xing)(xing)(xing)(xing)能(neng)(neng)(neng)(neng)。這(zhe)種合(he)金具(ju)(ju)有較高的(de)(de)(de)(de)力學性(xing)(xing)(xing)(xing)能(neng)(neng)(neng)(neng)、減磨(mo)性(xing)(xing)(xing)(xing)能(neng)(neng)(neng)(neng)和(he)(he)耐(nai)蝕(shi)性(xing)(xing)(xing)(xing),易(yi)切削加(jia)工(gong),釬(han)焊(han)和(he)(he)焊(han)接性(xing)(xing)(xing)(xing)能(neng)(neng)(neng)(neng)好(hao),收縮系數小,無(wu)磁性(xing)(xing)(xing)(xing)。可(ke)用(yong)線材火焰噴涂(tu)和(he)(he)電弧噴涂(tu)制備(bei)青(qing)(qing)銅(tong)襯套、軸(zhou)套、抗磁元件等涂(tu)層(ceng)。尺寸規格(ge)有Ф1.6mm、Ф2.3mm。具(ju)(ju)有較高的(de)(de)(de)(de)強度、耐(nai)蝕(shi)性(xing)(xing)(xing)(xing)和(he)(he)優良的(de)(de)(de)(de)鑄造性(xing)(xing)(xing)(xing)能(neng)(neng)(neng)(neng),長(chang)期以(yi)來廣泛應用(yong)于各工(gong)業(ye)部門中。
