Cov kav dej welded ntevyog ib qho tseem ceeb hauv ntau yam lag luam suav nrog kev tsim kho, roj thiab roj av, thiab cov haujlwm hauv hiav txwv. Ntawm ntau hom muaj nyob rau hauv kev ua lag luam, LSAW (Longitudinal Submerged Arc Welded) cov kav hlau carbon yog nrov vim lawv qhov zoo tshaj plaws. Ua los ntawmAPI 5L hlau,cov kav dej no ruaj khov heev thiab haum rau ntau yam kev siv.
Ib qho ntawm cov txiaj ntsig tseem ceeb ntawmlongitudinal submerged arc welded carbon steel yeeb nkabyog nws lub zog thiab kev tawv. Cov txheej txheem vuam ntev ua kom muaj kev vuam txuas ntxiv thiab muaj zog, ua rau cov yeeb nkab tiv taus cov xwm txheej siab. Tsis tas li ntawd, kev siv API 5L steel ntxiv txhim kho nws cov khoom siv kho tshuab, ua rau nws haum rau cov chaw ib puag ncig hnyav. Cov yeeb nkab no muaj lub zog tensile siab thiab kev tiv thaiv corrosion zoo heev, ua rau lawv zoo tagnrho rau kev siv mus sij hawm ntev hauv cov xwm txheej hnyav.
Peb lub tuam txhab feem ntau yog cov qauv: API 5L PSL1 thiab PSL2. ASTM A252,BS EN10210, BS EN10219Txais tos cov neeg siv khoom hu xov tooj, kev sib tham ua lag luam.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-02-2023