Ob peb pipeline anticorrosion txheej thiab lawv qhov zoo thiab qhov tsis zoo
Tam sim no, txoj kev kho cov kav dej los tiv thaiv corrosion feem ntau yog ua los ntawm ntau cov txheej txheem rau kev tiv thaiv zaj duab xis, thiab kev xaiv cov txheej txheem tsim nyog yog tus yuam sij rau cov kav dej los tiv thaiv corrosion. Cov nram qab no kaum hom coatings feem ntau yog siv rau pipeline anticorrosion.
1. Epoxy resin anti-corrosion txheej.
Epoxy resin anti-corrosion txheej yog dav siv los tiv thaiv corrosion ntawm sab hauv thiab sab nrauv phab ntsa ntawm cov kav dej. Qhov zoo: muaj zog adhesion, acid thiab alkali tsis kam, tsawg shrinkage, thiab lwm yam Disadvantages: Cov xim zaj duab xis yog yooj yim rau pulverize thiab muaj huab cua tsis zoo.
2.Polyurethane anti-corrosion txheej
Polyurethane anti-corrosion txheej tuaj yeem siv los tiv thaiv corrosion ntawm cov phab ntsa sab hauv ntawm cov kav dej siab ntawm lub chaw nres tsheb fais fab thiab cov phab ntsa sab hauv ntawm cov yeeb nkab hauv av ntawm cov roj av dej txhaj tshuaj zoo. Qhov zoo: Polyurethane txheej yog resistant rau acid, alkali, roj, dej thiab puas
3. Asphalt anti-corrosion txheej.
Lub hom phiaj tseem ceeb ntawm asphalt coatings yog waterproofing thiab anti-corrosion ntawm underground pipelines. Thaum siv los tiv thaiv corrosion ntawm cov kav dej hauv av, nws feem ntau yog npog nrog iav ntaub. Qhov zoo: Tus nqi ntawm cov ntaub ntawv raw yog tsawg, thiab nws yog resistant rau corrosion ntawm dilute acid thiab dilute alkali nyob rau hauv chav tsev kub. Cov xim zaj duab xis dries sai thiab muaj zoo elasticity. Disadvantages: tsis resistant rau organic solvents, tsis kub embrittlement.
4. Urushiol anti-corrosion txheej.
Nws tuaj yeem siv los ua cov tshuaj tiv thaiv corrosion rau ammonia gas, ammonia dej, chlorine gas thiab hydrogen sulfide gas; nws tseem tuaj yeem siv los ua cov khoom pov thawj noo noo thiab tiv thaiv corrosion rau cov kav dej hauv av. Qhov zoo: Piv nrog cov lacquer nyoos, nws tsis muaj tshuaj lom thiab dries sai. Acid kuj, alkali tsis kam, ammonia tsis kam, dej tsis kam.
5. Olefin resin anti-corrosion txheej
Lub txheej yog tsim los ntawm cov resin uas muaj ethylene los yog propylene molecular qauv raws li raw khoom, ntxiv rau hloov resin, muab tub lim, thiab lwm yam. Nws muaj dej tsis kam, acid kuj, alkali tsis kam thiab huab cua tsis kam.
6. Perchlorethylene resin los tiv thaiv corrosion txheej.
Nws yog txheej txheej dav siv hauv cov kav dej tshuaj los tiv thaiv atmospheric corrosion. Nws qhov tsis zoo yog tias nws tsis zoo adhesion rau cov kav dej. Txhawm rau txhim kho nws cov adhesion, epoxy resin feem ntau yog siv los hloov kho nws, thiab ua tiav cov nyhuv.
7.Chlorinated roj hmab anti-corrosion txheej.
Feem ntau siv rau atmospheric corrosion tiv thaiv, cov nyhuv zoo dua. Nws cov yam ntxwv yog tias nws tuaj yeem tiv taus corrosion ntawm dilute acid thiab dilute alkali, muaj qhov zoo permeability, thiab yog nplaim hluav taws.
8.High kub resistant anti-corrosion txheej.
High-temperature anti-corrosion txheej yog tsuas yog silicone resin tshav kub-resistant txheej, uas yuav siv tau ntawm kub txog li 500 degree. Qhov zoo yog dej tsis kam, corrosion kuj, thiab huab cua tsis kam. Qhov tsis zoo yog qhov adhesion tsis zoo, tus nqi yog kim, thiab cov khoom uas muaj cov hmoov txhuas yuav tsum tau qhuav.
9.zinc-nplua nuj anti-corrosion txheej.
Lub hauv paus ntsiab lus anticorrosion ntawm zinc-nplua nuj txheej yog feem ntau yog zinc hmoov tuaj yeem ua si cathodic tiv thaiv cov ntaub ntawv hlau, yog li nws yog tsim rau anticorrosion ntawm dej, dej hiav txwv, roj, thiab marine huab cua, thiab nws tsis haum rau siv nyob rau hauv acid thiab alkali media.
10. Cement mortar.
Cement mortar feem ntau yog siv los ua cov txheej txheej ntawm cov kav dej. Tam sim no, muaj kev hloov pauv ntau yam xws li polymer cement mortar, uas tuaj yeem siv rau cov kav dej xws li dej kub, dej hiav txwv, thiab dej phwj tuaj, thiab tuaj yeem cuam tshuam kev loj hlob ntawm cov kab mob thiab bryophytes. Nws qhov zoo yog kev lag luam thiab tsis muaj kuab paug.
