Tanthauzo la kupanga longitudinal msoko kumiza-arc welded chitoliro

Pakalipano, mapaipi amagwiritsidwa ntchito makamaka potengera mafuta ndi gasi mtunda wautali. Mapaipi azitsulo omwe amagwiritsidwa ntchito pamapaipi akutali amaphatikizansospiral submerged arc welded zitsulo mapaipindi msoko wowongoka wambali ziwiri womiza arc welded zitsulo mapaipi. Chifukwa chitoliro cha spiral submerged arc welded chimapangidwa ndi chitsulo chamzere ndipo makulidwe a khoma lake ndi ochepa, kuwongolera kwazitsulo kumakhala kochepa chifukwa cha kutentha kwa zinthuzo. Kuphatikiza apo, pali zolephera zina zosagonjetseka za chitoliro chowotcherera cha ozungulira, monga weld wautali, kupsinjika kwakukulu kotsalira komanso kudalirika kosadalirika kwa weld. Ndi kuchuluka kofunikira kwa mapaipi achitsulo otumizira mafuta ndi gasi, sagwiritsidwanso ntchito m'malo okhala ndi anthu ambiri komanso madera omwe ali ndi zofunikira zodalirika kwambiri, ndilalikulu m'mimba mwake molunjika welded mapaipipang'onopang'ono m'malo mipope wozungulira welded.

Posachedwapa, China ikufulumizitsa chitukuko cha mafuta ndi gasi ku East China Sea. Ndi chitukuko cha kugwiritsira ntchito mafuta mpaka kuya kwa nyanja, payipi yomwe ili pansi pa nyanja imakhudzidwa ndi mphamvu zophatikizika za kukakamiza, mphamvu yamphamvu ndi mphamvu yopindika, ndipo chodabwitsa cha flattening chikuwonekerabe, chomwe ndi chingwe chofooka cha spiral welded. chitoliro. Pofuna kupititsa patsogolo kayendedwe ka mapaipi ndi kuonetsetsa kuti payipi ya sitima zapamadzi ikupita ku khoma lochindikala, payipi ya sitima zapamadzi nthawi zambiri imatenga chitoliro chowongoleredwa. Choncho, poyerekeza ndi ozungulira welded chitoliro, wowongoka welded chitoliro ali apamwamba dimensional molondola ndi zosavuta kukonza kuwotcherera, choncho mbali iyi, molunjika welded chitoliro ndi kusankha woyamba.

Makina, zomangamanga, makampani opanga mankhwala ndi mafakitale ena amafunikira mapaipi owongoka owotcherera. Pakalipano, dzenje lamkati la mpando wa vavu limapangidwa pambuyo popanga makampani opanga makina, omwe ndi ovuta, owononga nthawi komanso owononga zinthu. Ngati chitoliro chowongoleredwa chokhala ndi mipanda yokhuthala chikugwiritsidwa ntchito, chikhala chokwera mtengo kwambiri. Kuphatikiza apo, chifukwa cha zofunikira zamakina a anti-flattening, mapaipi owongoka okha omwe amagwiritsidwa ntchito pomanga mapaipi; Chitoliro chowongoleredwa chowongoka chikuyembekezekanso kugwiritsidwa ntchito pamapaipi amankhwala.