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歡迎來到鹽山昱通螺旋鋼管實體生產企業!

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鹽山昱通管道

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 > 螺旋管的表面處理及焊接工藝

螺旋管的表面處理及焊接工藝

日期:2023-02-16

螺旋鋼管的表面處理要求:涂裝金屬表面時,要求噴砂、拋丸除銹抵達國標Sa212級,堅持表面單調、無油污、塵土等,并在4小時內涂裝。配比:甲:乙=3:1(分量比)。理論涂布率:干膜厚度80~100微米條件下,公斤/平方米。稀釋劑用量:若涂料確實太稠,可適當添加專用稀釋劑。

螺旋管

螺旋鋼管焊接工藝,帶鋼頭尾對接,采用單絲或雙絲埋弧焊接,在卷成鋼管后采用自動埋弧焊補焊。

成型前,帶鋼經過矯平、剪邊、刨邊,表面清理輸送和予彎邊處理。采用電接點壓力表控制輸送機兩邊壓下油缸的壓力,確保了帶鋼的平穩輸送.采用外控或內控輥式成型。

采用焊縫間隙控制裝置來保證焊縫間隙滿足焊接要求,管徑,錯邊量和焊縫間隙都得到嚴格的控制。大口徑螺旋鋼管內焊和外焊均采用美國林肯電焊機進行單絲或雙絲埋弧焊接,從而獲得穩定的焊接質量。

一些花園柵欄便是采用了精密鋼管,其中20#精密鋼管更是在護欄行業中廣泛使用,精密的尺寸讓朋友們在使用的過程中不會出現浪費人力和物力,而且精密鋼管儲存的環境沒有過高的要求,可以直接擺放在潮濕的環境中,而不被腐蝕。

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