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<怒江>安達億邦金屬材料 批發20#大口徑無縫鋼管_廠家

不(bu)(bu)銹(xiu)鋼(gang)(gang)管(guan)(guan)(guan)(guan)也(ye)常用作各種常規武器、槍管(guan)(guan)(guan)(guan)、炮彈等(deng).不(bu)(bu)銹(xiu)鋼(gang)(gang)無縫(feng)鋼(gang)(gang)管(guan)(guan)(guan)(guan)的(de)(de)制(zhi)造工(gong)藝是(shi)在2200°的(de)(de)溫度(du)(du)下(xia)在不(bu)(bu)銹(xiu)鋼(gang)(gang)方坯中沖(chong)(chong)壓(ya)出一個孔，在此高溫下(xia)，工(gong)具鋼(gang)(gang)經沖(chong)(chong)壓(ya)和(he)拉延變(bian)得柔(rou)軟并螺旋狀地從孔中成形(xing)出來。這樣管(guan)(guan)(guan)(guan)道的(de)(de)壁(bi)厚(hou)不(bu)(bu)均勻且偏(pian)心度(du)(du)高。不(bu)(bu)銹(xiu)鋼(gang)(gang)管(guan)(guan)(guan)(guan)因而允(yun)許(xu)無縫(feng)管(guan)(guan)(guan)(guan)的(de)(de)壁(bi)厚(hou)差比有縫(feng)管(guan)(guan)(guan)(guan)的(de)(de)壁(bi)厚(hou)差大(da)。有縫(feng)管(guan)(guan)(guan)(guan)是(shi)通(tong)過(guo)的(de)(de)冷軋板(ban)(ban)(每卷寬(kuan)度(du)(du)為4-5英(ying)尺)制(zhi)成。不(bu)(bu)銹(xiu)鋼(gang)(gang)管(guan)(guan)(guan)(guan)這些冷軋板(ban)(ban)通(tong)常大(da)的(de)(de)壁(bi)厚(hou)差為0.002英(ying)寸。鋼(gang)(gang)板(ban)(ban)被剪(jian)成πd的(de)(de)寬(kuan)度(du)(du)，其(qi)中d為管(guan)(guan)(guan)(guan)道的(de)(de)外(wai)徑(jing)。