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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 > 螺旋鋼管的工藝性能

螺旋鋼管的工藝性能

日期:2020-02-28

螺旋鋼管是以帶卷為原料,經室溫擠壓,采用自動雙面埋弧焊接工藝焊接的螺旋縫鋼管。

螺旋鋼管的工藝性能

螺旋埋弧焊管工藝性能如下:

1、彎曲性能。按規定的頂點直徑彎曲180度,加固后的曲面部分不能開裂。

2、反向彎曲性能。根據要求,可進行鋼筋反向彎曲性能試驗。反向彎曲試驗彎曲試驗頂點直徑比相應增加的一根鋼筋直徑大。先向前彎45度,后向后彎23度,后向后彎23度。經反向彎曲試驗,加固后的彎曲部分表面不能開裂。

3、表面質量。鋼材表面允許有裂紋、結疤和折疊。鋼筋表面允許有凹凸,但不得超過橫肋的高度,對其他鋼材表面缺陷的深度和高度不得超過現場尺寸的允許偏差。

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