Nyob rau hauv cov txheej txheem ntawm kev tiv thaiv corrosion kev tsim kho ntawm cov roj thiab cov kav dej, kev kho qhov chaw ntawm cov yeeb nkab ncaj nraim yog ib qho tseem ceeb uas txiav txim siab txog kev pab cuam lub neej ntawm cov kav dej los tiv thaiv corrosion. Tom qab kev tshawb fawb los ntawm cov chaw tshawb fawb kev tshaj lij, lub neej ntawm cov txheej txheem tiv thaiv corrosion nyob ntawm yam xws li hom txheej txheej, txheej txheej zoo thiab ib puag ncig kev tsim kho. Cov kev cai rau saum npoo ntawm cov yeeb nkab ncaj seam steel yeeb nkab tau zoo tas li, thiab txoj kev kho saum npoo ntawm cov yeeb nkab ncaj seam steel yeeb nkab tau txhim kho tas li. Cov kev tshem tawm paj ntaub ntawm cov yeeb nkab ncaj seam steel feem ntau suav nrog cov hauv qab no:

1. Kev ntxuav
Siv cov kuab tshuaj thiab emulsions los ntxuav cov hlau saum npoo kom tshem tau cov roj, roj, plua plav, lubricants thiab cov khoom siv zoo sib xws, tab sis nws tsis tuaj yeem tshem tawm xeb, oxide nplai, vuam flux, thiab lwm yam ntawm cov hlau nto, yog li nws tsuas yog siv los ua ib qho kev pabcuam. txhais tau tias hauv kev ua haujlwm tiv thaiv corrosion.

2. Pickling
Feem ntau, ob txoj kev siv tshuaj thiab electrolytic pickling yog siv rau pickling, thiab tsuas yog cov tshuaj pickling yog siv rau pipeline anticorrosion, uas tuaj yeem tshem tawm oxide nplai, xeb, thiab txheej txheej qub. Txawm hais tias kev siv tshuaj tua kab mob tuaj yeem ua rau lub ntsej muag ua tiav qee qhov kev huv thiab roughness, nws cov qauv thauj tog rau nkoj yog ntiav thiab nws yooj yim ua rau muaj kuab paug rau ib puag ncig ib puag ncig.

3. Cov cuab yeej tshem tawm xeb
Feem ntau siv cov cuab yeej xws li hlau txhuam los txhuam rau saum npoo ntawm cov hlau, uas tuaj yeem tshem tawm xoob oxide nplai, xeb, vuam slag, thiab lwm yam. Kev tshem tawm xeb ntawm phau ntawv cov cuab yeej tuaj yeem ncav cuag qib Sa2, thiab xeb tshem tawm cov cuab yeej hluav taws xob tuaj yeem ncav cuag Sa3. qib. Yog hais tias cov hlau nto yog ua raws li qhov ruaj khov ntawm cov hlau oxide, cov xeb tshem tawm ntawm cov cuab yeej tsis zoo, thiab cov qauv thauj tog rau nkoj qhov tob xav tau rau kev tsim kho corrosion tsis tuaj yeem ua tiav.

4. Txau xeb tshem tawm
Lub dav hlau derusting yog tsav lub dav hlau cov hniav kom tig ntawm qhov kev kub ceev los ntawm lub tshuab hluav taws xob siab, kom cov abrasives xws li txhaj tshuaj steel, steel xuab zeb, hlau hlau ntu, ntxhia, thiab lwm yam. yeeb nkab nyob rau hauv lub zog centrifugal quab yuam ntawm lub cev muaj zog, uas tuaj yeem tsis tsuas yog tshem tawm cov oxides, xeb thiab av, thiab cov yeeb nkab ncaj seam steel tuaj yeem ua tiav qhov yuav tsum tau ua kom muaj kev ntxhib los mos nyob rau hauv qhov kev txiav txim ntawm kev ua phem thiab kev sib txhuam ntawm cov abrasive.

Tom qab txau thiab tshem tawm cov xeb, nws tuaj yeem tsis tsuas yog nthuav tawm lub cev adsorption ntawm cov yeeb nkab, tab sis kuj tseem txhim kho cov neeg kho tshuab adhesion ntawm txheej los tiv thaiv corrosion thiab nto ntawm cov yeeb nkab. Yog li ntawd, dav hlau derusting yog ib qho zoo tshaj plaws derusting txoj kev rau pipeline anticorrosion. Feem ntau hais lus, txhaj tshuaj blasting feem ntau yog siv rau sab hauv kho cov kav dej, thiab kev txhaj tshuaj blasting feem ntau yog siv rau sab nrauv kho ntawm cov kav hlau ncaj seam.

Nyob rau hauv cov txheej txheem ntau lawm, cov ntaub ntawv qhia txog kev tshem tawm xeb yuav tsum nruj me ntsis kom tsis txhob muaj kev puas tsuaj rau cov yeeb nkab ncaj seam steel los ntawm kev ua haujlwm yuam kev. Paj ntaub yog cov txheej txheem nquag siv hauv kev lag luam steel yeeb nkab.