Kev xa khoom ntawm API 5L X52 feem ntau sib txawv raws li cov khoom lag luam specification qib PSL1 thiab PSL2, raws li hauv qab no:
PSL1 kev xa khoom
Rolling xeev: suav nrog kub dov, normalizing dov, thermomechanical dov, thermomechanical forming, thiab lwm yam. Piv txwv li, API 5L X52 PSL1 seamless steel yeeb nkab tuaj yeem xa los ntawm kub dov, uas muaj kev ua haujlwm siab thiab tus nqi qis, tab sis kev ua tiav ntawm cov yeeb nkab steel yog me ntsis qis dua ntawm cov yeeb nkab steel tom qab normalizing thiab lwm yam kev kho mob.
Normalizing lossis normalizing forming: Kub cov yeeb nkab steel kom siab tshaj qhov kub thiab txias, ua kom sov rau lub sijhawm tsim nyog, thiab tom qab ntawd txias hauv huab cua kom cov qauv zoo ib yam thiab ua kom zoo dua cov nplej, yog li txhim kho lub zog thiab tawv ntawm cov yeeb nkab steel. . Nws yog tsim rau lub sijhawm uas muaj kev xav tau siab rau kev ua tiav ntawm cov yeeb nkab steel.
Normalizing thiab tempering: Tempering kev kho mob yog nqa tawm nyob rau hauv lub hauv paus ntawm normalizing. Tempering tuaj yeem tshem tawm cov kev ntxhov siab sab hauv los ntawm normalizing, ntxiv stabilize cov qauv thiab kev ua tau zoo, thiab ua rau cov yeeb nkab steel muaj lub zog zoo dua thiab toughness txuam thiab corrosion kuj.
PSL2 kev xa khoom
Kub dov: API 5L X52 PSL2 steel kav xa hauv lub xeev kub dov muaj cov txheej txheem tsim khoom yooj yim thiab cov nqi qis, thiab tsim nyog rau qee cov kav dej dav dav uas tsis muaj kev ua haujlwm nruj tshwj xeeb.
Normalizing, normalizing dov, thiab normalizing forming: Zoo ib yam li normalizing nyob rau hauv PSL1, normalizing thiab lwm yam kev kho mob yog siv los txhim kho cov qauv thiab kev ua tau zoo ntawm steel kav, txhim kho lawv lub zog, toughness, qaug zog tiv thaiv, thiab ua tau raws li cov kev cai siv nyob rau hauv ntau. xav tau kev ua haujlwm xws li kev thauj mus los ntawm roj thiab roj.
quenching thiab tempering: quenching tuaj yeem ua rau cov kav hlau tau txais lub zog siab thiab tawv, tab sis qhov kev ntxhov siab sab hauv ntawm cov yeeb nkab steel tom qab quenching yog qhov loj thiab qhov toughness tsawg. Los ntawm kev kho tempering, thaum tuav lub zog siab, lub toughness thiab plasticity tuaj yeem txhim kho tau zoo, yog li cov yeeb nkab steel muaj cov khoom siv zoo, uas yog tsim rau cov sijhawm tshwj xeeb uas yuav tsum tau muaj zog thiab toughness, xws li high-pressure thiab siab. - muaj zog roj thiab roj pipelines.
Thermomechanical rolling lossis thermomechanical forming: Thaum lub sij hawm dov los yog tsim cov txheej txheem, los ntawm kev tswj cov txheej txheem tsis xws li cua sov, dov deformation thiab txias npaum li cas, cov yeeb nkab steel tuaj yeem tau txais kev ua haujlwm zoo, ua kom zoo dua cov nplej, txhim kho lub zog thiab toughness, thiab nyob rau hauv qhov kev ua tau zoo. tib lub sij hawm, qhov ntau lawm efficiency yog siab thiab cov khoom zoo yog ruaj khov. Nws yog ib qho kev siv khoom xa tuaj.
API 5L X52 siab kub steel yeeb nkab
