n.萬(wàn)公尺(超長(zhǎng))

On the basis of the characters of HG - II myriametre rail welder and thetechnological request of rail gas pressure welding in the field, a ra. 根據(jù)新技術(shù)標(biāo)準(zhǔn)和施工工藝特點(diǎn),在客運(yùn)專線鋪軌基地建造了全自動(dòng)的長(zhǎng)鋼軌焊接流水生產(chǎn)線,總結(jié)出了長(zhǎng)鋼軌閃光接觸焊的施工關(guān)鍵技術(shù)。