通化硕抠家具有限公司

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    深海用直縫輸氣管線管的開發(fā)和應(yīng)用

    Development and Application of Straight Welded Linepipes for Deep Ocean Gas Pipeline Project

    • 摘要: 介紹了深海用直縫輸氣管線管的研發(fā)過程。在優(yōu)化設(shè)計(jì)管線鋼化學(xué)成分和生產(chǎn)工藝的基礎(chǔ)上，通過焊接和成型工藝試驗(yàn)研究，采用自主研發(fā)的MK65HGX-Ⅲ埋弧焊絲與高堿度燒結(jié)焊劑SJ102G匹配進(jìn)行內(nèi)、外焊均為四絲的單層焊，成功生產(chǎn)出約5.2萬t的SMYS 450F/X65MO鋼級(jí)Φ558.8 mm（22 in）厚壁深海用直縫輸氣管線管。試驗(yàn)檢測(cè)表明：該管線管在理化性能、幾何尺寸、外觀質(zhì)量上均完全符合DNV-OS-F101∶2007規(guī)范和用戶的要求。

       

      Abstract: Elaborated in the paper are the R & D activities of the straight welded linepipe as to be used for the deep ocean gas pipeline project. The chemical composition and manufacturing process of the steel for the said linepipe are optimized. And based on the optimization result, the welding process and forming processfor the pipes are conducted. And thanks to using of the four wire mono-layer welding process for pipe inner and outer welding with MK65HGX-ⅢSAW welding wire as developed by the company himself and the SJ102G hi-basicity weld agent, 52, 000 tons of Φ558.8 mm(22 in) SMYS 450F/X65MO SAWL straight welded linepipes for deep ocean gas pipelines is successfully produced. Relevant tests as conducted to the linepipes show that they are all in compliance with DNV-OS-F101:2007 and the customer specified requirements in terms of physicochemical properties, geometric dimensions and appearance quality, etc.

       

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