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                                                                                                                                    氣體輸送用大口徑直縫鋼管產品

                                                                                                                                    作者:滄州市大唐管業有限公司來源:http://www.locasity.com/時間:2018/06/19 點擊:0

                                                                                                                                    氣體輸送用大口徑直縫鋼管產品說明:
                                                                                                                                    品名: 氣體輸送用大口徑直縫鋼管 材質: Q235B 質量等級: 正品           
                                                                                                                                    品牌: 大唐管業 計重方式: 過磅 質保書:
                                                                                                                                    用途范圍: 石油、化工 加工服務:    
                                                                                                                                               

                                                                                                                                    氣體輸送用大口徑直縫鋼管產品訂購流程:

                                                                                                                                    厚壁直縫鋼管產品訂購流程

                                                                                                                                    氣體輸送用大口徑直縫鋼管產品簡介:

                                                                                                                                      氣體輸送用大口徑直縫鋼管用Q215A、Q235A鋼、Q235B普碳制造。也可選用易于焊接0317規范型號6012及鋼母755軟鋼一起制造。鋼管要進行水壓、彎曲、壓扁等實驗,對表面質量有必定要求,一般交貨長度為4-10m,常要求定尺交貨。焊管的規格用公稱口徑表示公稱口徑與實際不同,焊管按規定壁厚有普通鋼管和加厚鋼管兩種,鋼管按管端形式又分帶螺紋和不帶螺紋兩種。埋弧焊直縫鋼管選用的焊接工藝為埋弧焊技術,選用填充物焊接,顆粒維護焊劑埋弧。生產的口徑可以抵達1500mm,LSAW是埋弧焊直縫鋼管的英文簡稱,埋弧焊直縫鋼管的生產工藝有JCOE成型技術、卷制成型埋弧焊技術。直縫鋼管生產工藝??偸鲋笨p鋼管按生產工藝可分為高頻直縫鋼管和埋弧焊直縫鋼管。E、JCOE鋼管等。下面介紹最常見的高頻直縫鋼管和埋弧焊直縫鋼管的成型工藝。埋弧焊工藝。板探:用來制造大口徑埋弧焊直縫鋼管的鋼板進入生產線后,首要進行全板超聲波查驗。銑邊:經過銑邊機對鋼板兩頭際進行雙面銑削,使之抵達要求的板寬、板邊平行度和坡口形狀。預彎邊:運用預彎機進行板邊預彎,使板邊具有符合要求的曲率。


                                                                                                                                    氣體輸送用大口徑直縫鋼管的質量檢測方法如下:

                                                                                                                                    1、從表面上判斷,也就是在外觀檢驗。焊接接頭的外觀檢驗是一種手續簡便而又應用廣泛的檢驗方法,是成品檢驗的一個重要內容,主要是發現焊縫表面的缺陷和尺寸上的偏差。一般通過肉眼觀察,借助標準樣板、量規和放大鏡等工具進行檢驗。若焊縫表面出現缺陷,焊縫內部便有存在缺陷的可能。
                                                                                                                                    2、物理方法的檢驗:物理的檢驗方法是利用一些物理現象進行測定或檢驗的方法。材料或工件內部缺陷情況的檢查,一般都是采用無損探傷的方法。無損探傷有超聲波探傷、射線探傷、滲透探傷、磁力探傷等。
                                                                                                                                    3、受壓容器的強度檢驗:受壓容器,除進行密封性試驗外,還要進行強度試驗。常見有水壓試驗和氣壓試驗兩種。它們都能檢驗在壓力下工作的容器和管道的焊縫致密性。氣壓試驗比水壓試驗更為靈敏和速,同時試驗后的產品不用排水處理,對于排水困難的產品尤為適用。但試驗的危險性比水壓試驗大。進行試驗時,必須遵守相應的安全技術措施,以防試驗過程中發生事故。
                                                                                                                                    4、致密性檢驗:貯存液體或氣體的焊接容器,其焊縫的不致密缺陷,如貫穿性的裂紋、氣孔、夾渣、未焊透和疏松組織等,可用致密性試驗來發現。致密性檢驗方法有:煤油試驗、載水試驗、水沖試驗等。

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