無縫鋼管切割的質量檢測

　　無縫(feng)鋼管切割的(de)質量檢測

　　無縫鋼管切割的質量要想過(guo)關，需通過(guo)以(yi)下的一(yi)些檢測(ce)，這(zhe)樣質量才能有(you)保證，從而避(bi)免在使用過(guo)程中一(yi)些不必要的問題出現。

　　1.化(hua)學成(cheng)分(fen)(fen)(fen)(fen)(fen)(fen)(fen)分(fen)(fen)(fen)(fen)(fen)(fen)(fen)析(xi)(xi)(xi)。可采(cai)(cai)用(yong)儀器分(fen)(fen)(fen)(fen)(fen)(fen)(fen)析(xi)(xi)(xi)法(fa)(fa)和化(hua)學分(fen)(fen)(fen)(fen)(fen)(fen)(fen)析(xi)(xi)(xi)法(fa)(fa)。用(yong)于化(hua)學分(fen)(fen)(fen)(fen)(fen)(fen)(fen)析(xi)(xi)(xi)的試樣(yang)(yang)分(fen)(fen)(fen)(fen)(fen)(fen)(fen)熔(rong)煉試樣(yang)(yang)、錠鉆屑試樣(yang)(yang)、管材試樣(yang)(yang)。熔(rong)煉試樣(yang)(yang)一般采(cai)(cai)用(yong)儀器分(fen)(fen)(fen)(fen)(fen)(fen)(fen)析(xi)(xi)(xi)法(fa)(fa)、管材成(cheng)品試樣(yang)(yang)采(cai)(cai)用(yong)化(hua)學分(fen)(fen)(fen)(fen)(fen)(fen)(fen)析(xi)(xi)(xi)法(fa)(fa)和一起分(fen)(fen)(fen)(fen)(fen)(fen)(fen)析(xi)(xi)(xi)法(fa)(fa)。

　　2.尺(chi)寸和外形檢測。檢查內容主要(yao)包括壁厚、外徑、長度(du)、彎曲(qu)度(du)、橢圓度(du)、端口坡度(du)及鈍邊角度(du)和異形鋼(gang)管橫截(jie)面(mian)形狀等。

　　3.表面(mian)(mian)(mian)質(zhi)量檢(jian)(jian)測。人工(gong)肉眼檢(jian)(jian)查和無損探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)檢(jian)(jian)查，無損檢(jian)(jian)測的方(fang)法有很多(duo)，如超(chao)(chao)(chao)聲(sheng)波(bo)探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、渦流探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、磁粉探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、漏磁探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、電(dian)磁超(chao)(chao)(chao)聲(sheng)波(bo)探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)和滲透(tou)(tou)探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)等。每種方(fang)法各有優缺(que)點(dian)。適合(he)檢(jian)(jian)測鋼管表面(mian)(mian)(mian)或者近表面(mian)(mian)(mian)：渦流探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、磁粉探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、漏磁探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、滲透(tou)(tou)探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)。其中滲透(tou)(tou)探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)僅限于鋼管表面(mian)(mian)(mian)開口缺(que)陷(xian)的檢(jian)(jian)查;磁粉探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、漏磁探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)、渦流探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)只限于鐵(tie)磁性(xing)材(cai)料(liao)檢(jian)(jian)查。渦流探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)對(dui)(dui)點(dian)狀缺(que)陷(xian)比較敏感，其他探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)對(dui)(dui)裂紋(wen)敏感。而(er)超(chao)(chao)(chao)聲(sheng)波(bo)探(tan)(tan)(tan)(tan)傷(shang)(shang)(shang)(shang)(shang)對(dui)(dui)對(dui)(dui)鋼管表面(mian)(mian)(mian)檢(jian)(jian)測反應比較迅速，對(dui)(dui)鋼管內部定性(xing)分析尚存(cun)在一定的困難，并(bing)且超(chao)(chao)(chao)聲(sheng)波(bo)檢(jian)(jian)查還受到鋼管的形狀和晶粒度的限制。

　　4.化學(xue)性(xing)能檢測。在(zai)常(chang)溫或(huo)一定溫度下的力學(xue)性(xing)能實(shi)驗(yan)，液壓(ya)試驗(yan)和(he)腐蝕(shi)試驗(yan)。

　　5.工藝性能試驗。包括壓扁實(shi)驗、環拉實(shi)驗、擴(kuo)口和卷邊實(shi)驗、彎曲(qu)實(shi)驗。

　　6.金相分析(xi)。包(bao)括低倍(bei)和高倍(bei)檢查(cha)。

　　7.石油專用(yong)管(guan)(guan)螺紋參數檢(jian)(jian)測。包括接(jie)箍紋檢(jian)(jian)測、管(guan)(guan)體螺紋檢(jian)(jian)測以及管(guan)(guan)體與接(jie)箍擰(ning)緊后(hou)的檢(jian)(jian)測。