銅套
銅(tong)套(tao),也稱銅(tong)軸(zhou)套(tao),分為多種(zhong),包括機(ji)用銅(tong)輥、銅(tong)軸(zhou)承等(deng)。用于各種(zhong)輕(qing)工、大型(xing)(xing)、重(zhong)型(xing)(xing)機(ji)械(xie)上(shang),是機(ji)械(xie)上(shang)的(de)重(zhong)要組成件。產品具(ju)有(you)傳統的(de)錫(xi)青銅(tong)軸(zhou)承功(gong)能(neng),以電解銅(tong)為原料配以多種(zhong)微量金屬元素(su),經高溫(wen)燒結(jie),通過氣(qi)壓離心鑄(zhu)(zhu)造(zao)加工而成。硬度高,耐(nai)磨性(xing)(xing)極好(hao)(hao),不易產生咬死現象,有(you)較好(hao)(hao)的(de)鑄(zhu)(zhu)造(zao)性(xing)(xing)能(neng)和(he)(he)切削加工性(xing)(xing)能(neng),在大氣(qi)和(he)(he)淡水中(zhong)有(you)良好(hao)(hao)的(de)耐(nai)蝕性(xing)(xing)。在缺乏潤滑(hua)劑和(he)(he)用水質潤滑(hua)劑條件下,滑(hua)動性(xing)(xing)和(he)(he)自潤滑(hua)性(xing)(xing)能(neng)好(hao)(hao),易切削,鑄(zhu)(zhu)造(zao)性(xing)(xing)能(neng)差,對稀(xi)硫酸耐(nai)蝕性(xing)(xing)能(neng)好(hao)(hao)。一般用途的(de)結(jie)構件,船舶、儀表等(deng)使用的(de)外型(xing)(xing)簡單的(de)的(de)鑄(zhu)(zhu)件,如套(tao)筒、襯套(tao)、軸(zhou)瓦(wa)、滑(hua)塊等(deng)。