長(zhǎng)輸管道下向焊自動(dòng)化焊接技術(shù)

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摘要：隨著焊接設(shè)備和技術(shù)的不斷發(fā)展，自動(dòng)化焊接技術(shù)運(yùn)用越來(lái)越廣泛，對(duì)于材料、規(guī)格相對(duì)單一的長(zhǎng)輸管道，更有利于發(fā)展自動(dòng)焊。開(kāi)展新引進(jìn)的長(zhǎng)輸管道內(nèi)焊機(jī)、外焊機(jī)的工藝研究，總結(jié)了下向焊自動(dòng)化焊接技術(shù)。所獲得的焊接接頭性能滿足標(biāo)準(zhǔn)要求，將該焊接工藝在實(shí)際項(xiàng)目施工中進(jìn)行運(yùn)用，取得了很好的焊接效果。

關(guān)鍵詞：長(zhǎng)輸管道；自動(dòng)焊；內(nèi)焊機(jī)；下向焊

Automatic welding technology

for downward welding of long-distance pipelines

DU Changsen

Shanghai Installation Engineering Group Co.， Ltd.， Shanghai 200080， China

Abstract： With the continuous development of welding equipment and technology， the application of automated welding technology is becoming increasingly widespread. For long-distance pipelines with relatively single materials and specifications， it is more conducive to the development of automatic welding. This article summarizes the downward welding automation welding technology based on the process research of newly introduced long-distance pipeline internal and external welding machines. The obtained welding joint performance meets the standard requirements， and this welding process has been applied in actual project construction， achieving good welding results.

Keywords： long distance pipeline; automatic welding; internal welding machine; downward welding

1 序言

隨著中國(guó)經(jīng)濟(jì)快速發(fā)展，以及對(duì)石油、天然氣消費(fèi)需求量的不斷增長(zhǎng)，油氣長(zhǎng)輸管道工程建設(shè)逐步向高鋼級(jí)、大口徑、高壓力方向發(fā)展。（剩余2767字）