精密無縫鋼管是一種經過冷拉或熱軋的高精度鋼管材料。精密無縫鋼管主要用于生產氣(qi)動或(huo)(huo)液壓元(yuan)件，如氣(qi)缸或(huo)(huo)油缸，可以是(shi)無(wu)縫或(huo)(huo)焊管，因為它具有內外壁無(wu)氧化層、高壓不泄漏、高精度(du)、高精度(du)加工、無(wu)冷彎變形、無(wu)膨脹、平(ping)直無(wu)裂紋(wen)的優點。

普通鋼管和精密無縫(feng)鋼管的(de)區別

1.無(wu)縫(feng)(feng)鋼管的(de)主要(yao)特點是無(wu)焊縫(feng)(feng)，能承受很大壓力。產品可以是非常粗糙的(de)鑄(zhu)態(tai)或冷軋零件。

2.精(jing)密鋼管是近年來出現的產品(pin)，主要對內孔和外壁(bi)尺(chi)寸(cun)有嚴格(ge)的公差和粗糙度。

冷(leng)(leng)拔精(jing)(jing)(jing)密鋼(gang)管(guan)(guan)的(de)特點1。外徑更小(xiao)。2.精(jing)(jing)(jing)度(du)高，可小(xiao)批量生產(chan)；3.冷(leng)(leng)拉產(chan)品精(jing)(jing)(jing)度(du)高，表面(mian)質量好。4.鋼(gang)管(guan)(guan)的(de)橫截(jie)面(mian)更復雜。5.鋼(gang)管(guan)(guan)性能優越，金屬致密。熱(re)(re)(re)(re)軋(ya)(ya)(ya)(ya)(ya)(ya)精(jing)(jing)(jing)密鋼(gang)管(guan)(guan)后(hou)(hou)差熱(re)(re)(re)(re)軋(ya)(ya)(ya)(ya)(ya)(ya)精(jing)(jing)(jing)密無縫鋼(gang)管(guan)(guan)以連鑄圓(yuan)管(guan)(guan)坯(pi)或(huo)初軋(ya)(ya)(ya)(ya)(ya)(ya)板坯(pi)為原料(liao)，經步進(jin)梁式加熱(re)(re)(re)(re)爐加熱(re)(re)(re)(re)，高壓水除鱗，然(ran)后(hou)(hou)進(jin)入粗軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)。粗軋(ya)(ya)(ya)(ya)(ya)(ya)后(hou)(hou)的(de)材料(liao)被(bei)切(qie)(qie)割成(cheng)頭(tou)部和尾部，然(ran)后(hou)(hou)進(jin)入精(jing)(jing)(jing)軋(ya)(ya)(ya)(ya)(ya)(ya)機(ji)，由計(ji)算機(ji)控(kong)制(zhi)軋(ya)(ya)(ya)(ya)(ya)(ya)制(zhi)。終軋(ya)(ya)(ya)(ya)(ya)(ya)后(hou)(hou)，用層(ceng)流冷(leng)(leng)卻，用卷(juan)(juan)(juan)取機(ji)卷(juan)(juan)(juan)成(cheng)直(zhi)發(fa)卷(juan)(juan)(juan)。直(zhi)發(fa)卷(juan)(juan)(juan)發(fa)的(de)頭(tou)尾往(wang)往(wang)呈舌狀(zhuang)、魚尾狀(zhuang)，粗細(xi)和寬度(du)的(de)準確性較差。邊緣往(wang)往(wang)有波浪形(xing)、折邊、塔形(xing)等(deng)缺陷。卷(juan)(juan)(juan)重較重，鋼(gang)卷(juan)(juan)(juan)內(nei)徑760mm，經過切(qie)(qie)頭(tou)、切(qie)(qie)尾、切(qie)(qie)邊、多(duo)道次矯直(zhi)、整(zheng)平等(deng)精(jing)(jing)(jing)整(zheng)線處理后(hou)(hou)，將直(zhi)發(fa)卷(juan)(juan)(juan)切(qie)(qie)成(cheng)板材或(huo)重卷(juan)(juan)(juan)，成(cheng)為熱(re)(re)(re)(re)軋(ya)(ya)(ya)(ya)(ya)(ya)鋼(gang)板、熱(re)(re)(re)(re)軋(ya)(ya)(ya)(ya)(ya)(ya)扁(bian)鋼(gang)卷(juan)(juan)(juan)、縱切(qie)(qie)帶材等(deng)產(chan)品。如果熱(re)(re)(re)(re)軋(ya)(ya)(ya)(ya)(ya)(ya)精(jing)(jing)(jing)軋(ya)(ya)(ya)(ya)(ya)(ya)卷(juan)(juan)(juan)酸洗去(qu)除氧化(hua)皮并涂(tu)有熱(re)(re)(re)(re)軋(ya)(ya)(ya)(ya)(ya)(ya)酸洗卷(juan)(juan)(juan)。