Khoom Taw Qhia
Ncaj ib leeg submerged arc Welded Yeeb Nkab (LSAWW) yog tsim raws li Astm A252 / A252M cov qauv thiab feem ntau yog siv ua cov txheej txheem hauv tsev. Tus qauv qhia meej peb lub zog (qib 1/2), ntawm cov khoom siv hluav taws xob tsawg dua li ntawm qib 355mpa kom haum rau cov tsev lag luam hnyav thiab cov choj hla hiav txwv. Hom hlau no yog ua los ntawm cov phaj kub kub los ntawm JO tsim thiab ob sab sws submerged arc vuam. Cov neeg raug tshwj xeeb yog {13}} mm hauv txoj kab uas hla thiab {4 hli hauv phab ntsa tuab. Nws muaj axial ua kom pom zoo muaj peev xwm thiab khoov tsis kam. Cov qauv tso cai rau kev siv cov roj carbon steel lossis cov khoom siv hlau tsawg-hlau. Txawm hais tias cov tshuaj lom neeg muaj pes tsawg leeg tsis yog yuav tsum tau ua, cov chaw tsim khoom lag luam yuav tsum tau muab cov ntawv ceeb toom smelting kom ntseeg tau tias Weldability. Tsis zoo li API 5l pipeline cov yeeb nkab, ASTM A252 cov yeeb nkab steel tsom xam ntau dua li cov khoom muaj zog qis dua li tsawg dua. Feem ntau, tsuas yog cov kev ntsuam xyuas Tensile cov kev ntsuam xyuas yog qhov yuav tsum tau ua, thiab kev ntsuas cuam tshuam tsuas yog kev txhawb nqa tsuas yog muaj cov cai tshwj xeeb. Tom qab vuam, kev tshuaj ntsuam xyuas thiab kev kuaj pom tsis zoo, tab sis cov qauv ntsuas yuav xoob dua APD es tsis yog qhov tsis xws me me. Hom kev siv hlau no feem ntau tau sau nrog grouting pob zeb ua kom haum qauv, uas tuaj yeem txhim kho cov kabmob muaj peev xwm thiab kev ua yeeb yam ntawm lub teeb ci ntsa iab. Piv nrog cov qauv European xws li en 10219, cov ASTM A252 tus qauv tsom xam nyob rau sab qaum teb Asmeskas kev ua lag luam ua lag luam, hla hiav txwv. Piv txwv li, cov phiaj xwm xws li Shanghai ntauwd siv steel yeeb tshuaj piles ntawm tus qauv no.
Cim npe nrov: ASTM A252 / A252M, Tuam Tshoj, Tuam Tshoj chaw tsim khoom, chaw tsim khoom, lag luam, pheej yig, luv nqi
