Dab tsi yog txoj kev kho mob rau API 5L X52 kav?

Anti-corrosion kho
Txheej los tiv thaiv corrosion: Ntau yam txheej tiv thaiv corrosion yog siv rau saum npoo ntawm cov kav dej, xws li epoxy hmoov txheej, polyurethane txheej, polyethylene txheej, thiab lwm yam. Cov txheej txheem no tuaj yeem cais cov raj xa dej los ntawm ib puag ncig sab nraud, tiv thaiv oxygen, noo noo, corrosive. media, thiab lwm yam los ntawm corroding lub raj xa dej, yog li ncua kev pab cuam lub neej ntawm cov kav dej. Cov txheej txheem kev tsim kho muaj xws li txau, dipping, txhuam, thiab lwm yam, thiab cov txheej txheem tsim kho tsim nyog yuav tsum tau xaiv raws li cov xwm txheej tshwj xeeb ntawm cov khoom siv txheej txheej thiab cov kav dej.
Liner anti-corrosion: Rau qee qhov tshwj xeeb corrosive nruab nrab kev thauj mus los pipelines, cov txheej txheem tiv thaiv corrosion tuaj yeem siv tau, uas yog, txheej txheej ntawm cov khoom siv tiv thaiv corrosion yog lined rau sab hauv phab ntsa ntawm cov kav dej, xws li cov roj hmab hauv ob sab phlu, fiberglass hauv ob sab phlu. , ceramic hauv ob sab phlu, thiab lwm yam. Cov khoom siv hauv ob sab phlu yuav tsum zoo ua ke nrog cov kav dej matrix thiab muaj peev xwm tiv taus qhov scouring thiab corrosion ntawm nruab nrab.
Kev tiv thaiv cathode: Qhov no yog ib txoj kev tiv thaiv electrochemical. Los ntawm kev siv qee yam cathode tam sim no rau hauv cov raj xa dej, lub raj xa dej yog nyob rau hauv lub xeev cathode polarization, yog li inhibiting cov tshuaj tiv thaiv corrosion ntawm hlau. Kev tiv thaiv Cathodic tuaj yeem muab faib rau hauv txoj kev txi anode thiab kev qhuas rau txoj kev tam sim no. Txoj kev txi ntawm anode yog los txuas cov hlau ntau dua (xws li magnesium, zinc, thiab lwm yam) rau cov kav dej, uas yog corroded li anode los tiv thaiv cov kav dej; txoj kev zoo siab tam sim no yog muab cathode tam sim no rau cov kav dej los ntawm kev siv hluav taws xob sab nraud.
Kev kho cua sov
Normalizing kev kho mob: Kub lub raj xa mus rau qhov kub thiab txias tshaj qhov kub tseem ceeb, thiab tom qab ntawd txias nws hauv huab cua. Normalizing tuaj yeem kho cov nplej, ua kom cov qauv zoo ib yam, txhim kho lub zog, tawv thiab qaug zog ntawm cov kav dej, txhim kho kev ua haujlwm, thiab muab lub hauv paus zoo rau kev ua haujlwm tom ntej.
quenching thiab tempering kev kho mob: quenching yog kom txias lub raj xa mus rau chav tsev kub kom tau txais cov qauv martensitic thiab txhim kho lub zog thiab hardness ntawm cov kav dej; tempering yog kom sov lub quenched pipeline mus rau ib tug tej yam kub kub nyob rau hauv lub qhov tseem ceeb kub rau rwb thaiv tsev thiab ces txias. Lub hom phiaj yog txhawm rau tshem tawm quenching kev ntxhov siab, txo qhov brittleness ntawm cov khoom, kho qhov sib npaug ntawm hardness thiab toughness, thiab pab kom lub raj xa dej kom tau txais cov khoom zoo txhua yam.
Kev kho saum npoo
Sandblasting: Siv cov xuab zeb nrawm nrawm los cuam tshuam lub raj xa dej kom tshem tawm cov impurities xws li xeb, nplai, roj stains, thiab lwm yam ntawm qhov chaw, kom lub raj xa dej ntog muaj qee qhov kev ntxhib los mos los txhim kho qhov adhesion ntawm txheej thiab lub raj xa dej.
Pickling kev kho mob: Soak lossis yaug cov yeeb nkab nrog cov kua qaub kom tshem tawm cov oxides thiab cov khoom xeb ntawm qhov chaw. Tom qab pickling, neutralization thiab dej ntxuav yuav tsum tau tiv thaiv corrosion los ntawm residual acid ntawm cov yeeb nkab nto.