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專業生產銷售大口徑厚壁國標螺旋鋼管,廠內加工防腐/保溫/涂塑

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首頁 > 鋼管百科 > 螺旋管與無縫管的比較

螺旋管與無縫管的比較

日期:2019-12-30

無縫管是一種空心型材,外圍無帶鋼接頭。無縫鋼管無接縫,冷熱成型工藝。

特征僅限于良好。

螺旋管與無縫管的比較

螺旋管特點:直縫焊管生產工藝簡單,生產效率高,成本低。螺旋焊管的強度通常要比直縫焊管的強度高,后者可以使用較窄的方坯生產較大直徑的焊管,還可以使用相同寬度的方坯生產管直徑不同的焊管。

但是與相同長度的直縫管相比,焊縫長度增加了30?100%,且生產速度較低。因此,小口徑焊管大多采用直縫焊,大口徑焊管大多采用螺旋焊。

螺旋鋼管是用鋼帶制成的,無縫鋼管是用圓鋼制成的,相差很大,生產工藝不同:
螺旋管是用帶鋼焊接的,可以看焊縫;

無縫管是用圓鋼沖孔制成的,螺旋管下的壁厚差異很大,而無縫管下的小管基本沒有差異,對于大管的差異也不會很多。

主站蜘蛛池模板: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |