Kauv welded yeeb nkab (SSAW) xeb tshem tawm thiab cov txheej txheem anticorrosion kev taw qhia: Kev tshem tawm xeb yog ib qho tseem ceeb ntawm cov txheej txheem tshuaj tiv thaiv kab mob. Tam sim no, muaj ntau txoj kev tshem tawm xeb, xws li phau ntawv rust tshem tawm, xuab zeb blasting thiab pickling xeb tshem tawm, thiab lwm yam. Ntawm lawv, phau ntawv xeb tshem tawm, mechanical xeb tshem tawm thiab pleev xim xeb tshem tawm (anti-corrosion txhuam cov roj) yog cov xeb ntau. txoj kev tshem tawm.

1. Phau ntawv derusting

Tshem tawm cov nplai thiab nrum xuab zeb rau ntawm cov kav dej, cov khoom siv thiab cov thawv ntim nrog cov ntawv txhuam thiab cov ntaub ntawv, thiab tom qab ntawd siv cov txhuam txhuam kom tshem tawm cov xeb xeb ntawm cov kav dej, cov khoom siv thiab cov thawv, tom qab ntawd txhuam lawv nrog cov ntawv xuab zeb, thiab thaum kawg so. lawv nrog paj rwb txhob lo lo ntxhuav. net.

2. Mechanical xeb tshem tawm

Ua ntej siv lub scraper lossis cov ntaub ntawv tshem tawm cov nplai thiab cov xuab zeb pov rau saum npoo ntawm cov yeeb nkab; tom qab ntawd ib tus neeg nyob rau pem hauv ntej ntawm lub tshuab descaling thiab lwm tus yog tom qab lub tshuab descaling, thiab cov yeeb nkab rov qab descaled nyob rau hauv lub tshuab descaling kom txog rau thaum cov xim tseeb ntawm cov hlau raug; Ua ntej oiling, so nws dua nrog paj rwb lo lo ntxhuav kom tshem tawm cov tshauv ntab saum npoo.

3. Anti-corrosion txhuam roj

Cov kav dej, cov khoom siv thiab cov thawv ntim khoom feem ntau yog los tiv thaiv corrosion thiab oiled raws li tus qauv tsim. Thaum tsis muaj kev tsim qauv, cov cai hauv qab no yuav tsum ua raws li:

ib. Cov kav dej saum npoo av, cov khoom siv thiab cov thawv ntim khoom yuav tsum tau pleev xim ua ntej nrog ib lub tsho tiv thaiv xeb, thiab tom qab ntawd ob lub tsho loj ntawm cov tsho sab saum toj yuav tsum tau pleev xim rau ua ntej xa mus. Yog tias muaj qhov yuav tsum tau ua kom txuag hluav taws xob thiab tiv thaiv condensation, ob lub tsho tiv thaiv xeb yuav tsum tau pleev xim rau;

b. Xim ob lub tsho tiv thaiv xeb ntawm cov kav dej zais, cov khoom siv thiab ntim khoom. Lub tsho tiv no thib ob ntawm cov xim tiv thaiv xeb yuav tsum tau pleev xim tom qab thawj lub tsho tiv no kom qhuav tag, thiab qhov sib xws ntawm cov xim tiv thaiv xeb yuav tsum tsim nyog;

3. Thaum cov kav dej faus yog siv los ua cov txheej txheem tiv thaiv corrosion, yog tias nws tsim nyob rau lub caij ntuj no, nws raug nquahu kom siv roj hmab hnyav roj lossis roj av aviation kom yaj 30 A lossis 30 B roj av asphalt. Ob hom:

① Kev txhuam txhuam: phau ntawv txhuam hniav yuav tsum tau siv rau hauv cov khaubncaws sab nraud povtseg, thiab txhua txheej yuav tsum tau rov ua dua, hla dhau, thiab cov txheej yuav tsum tau khaws cia zoo li tsis ploj lossis poob;

② Mechanical spraying: Cov xim pleev xim yuav tsum yog perpendicular rau cov xim pleev xim rau lub sijhawm txau. Thaum cov xim pleev xim yog tiaj tus, qhov kev ncua deb ntawm lub nozzle thiab cov xim pleev xim yuav tsum yog 250-350mm. Yog tias cov xim pleev xim yog ib qho arc, qhov kev ncua deb ntawm lub nozzle thiab cov xim pleev xim yuav tsum yog li 400 hli. , Thaum txau, qhov txav ntawm lub nozzle yuav tsum tsis sib xws, qhov ceev yuav tsum tau khaws cia ntawm 10-18m / min, thiab compressed cua siab siv rau cov xim pleev xim yuav tsum yog 0.2-0.4MPa.