Vim li cas cov kav hlau steel yuav tsum muaj kev tiv thaiv corrosion?Raws li lub npe implies, steel kav anticorrosive yog los tiv thaiv cov kav hlau los ntawm corrosion thiab txo cov kev pab cuam lub neej.PE anticorrosive steel kav tau ua tiav thiab thauj cov kav dej xws li roj av, dej, thiab cov nkev, yuav raug siv. raws li kev lag luam kis cov ntaub ntawv.Txawm nws yog faus lossis nyiaj siv ua haujlwm, nws yuav ntsib qhov teeb meem no. Yog li, yuav daws qhov teeb meem no li cas?Tom qab ntawd, cov neeg tau tsim cov phab ntsa sab nrauv lossis sab hauv phab ntsa ntawm cov yeeb nkab steel los tiv thaiv corrosion kom zoo tswj thiab tiv thaiv steel yeeb nkab corrosion.
Tam sim no, steel yeeb nkab anticorrosive txheej yog feem ntau:
1. Cov roj txheej
Cov roj coatings yog txheej txheej nrog cov roj qhuav ua cov yeeb yaj kiab tseem ceeb.Nws yog cov yam ntxwv ntawm kev tsim khoom yooj yim, kev pleev xim zoo, dej noo zoo, tus nqi qis, thiab cov xim hloov tau yooj yim; Cov roj qhuav feem ntau yog ua ke nrog cov xim pleev xim los tiv thaiv xeb. , uas yog siv nyob rau hauv atmospheric ib puag ncig thiab tsis muaj corrosion kuj.
2. National painting
Lub teb chaws cov xim, tseem hu ua raw lacquer thiab cov xim loj, yog qhov tshwj xeeb rau Tuam Tshoj.Raw xim yog cov kua mis dawb dawb uas txiav cov tawv ntoo los ntawm cov ntoo lacquer thiab tshem tawm cov impurities tom qab lim.Tom qab cov xim nyoos yog coated tom qab qhov chaw ntawm lub lacquer. yam khoom, xim sai sai ua liab, los ntawm liab mus rau liab doog.Yog hais tias nws yuav siv sij hawm ntev, nws yuav ua tau ib tug nyuaj thiab kaj xim xim zaj duab xis.Paint phenol yog lub ntsiab feem ntawm cov xim nyoos, nrog 30-70% cov ntsiab lus ( Qhov siab dua cov xim phenol cov ntsiab lus, qhov zoo dua cov xim zoo nkauj).Lub teb chaws lacquer muaj zog, cov xim zaj duab xis yog tawv, cov luster zoo, cov av corrosion kuj, dej tsis kam thiab roj thiab roj.Qhov tsis zoo yog tshuaj lom thiab yooj yim. ua rau tawv nqaij ua xua.Ntxiv rau, nws tsis tiv taus oxidant thiab tsis muaj alkali tsis kam.
3. Phenolic resin xim
Nws feem ntau suav nrog cawv-soluble phenolic resin, hloov kho phenolic resin, thiab ntshiab phenolic resin.Cov cawv-soluble phenolic resin xim muaj qhov zoo corrosion kuj, tab sis nws qhov tsis zoo yog kev tsim kho tsis yooj yim, tsis yooj yim, thiab tsis muaj zog adhesion, yog li nws daim ntawv thov raug txwv rau ib qho degree.Phenolic resin yuav tsum tau hloov kho thaum siv.Piv txwv li, rosin modifiers thiab phenolic resin thiab tung roj yog refined. Ntxiv ntau yam pigments. Tom qab sib tsoo, ntau yam sib nqus coatings tuaj yeem ua tau.Cov xim zaj duab xis yog tawv, tus nqi qis, thiab nws yog dav siv nyob rau hauv painting ntawm rooj tog thiab qhov rooj thiab qhov rais.Pure phenolic resin coatings muaj zog txuas, dej tsis kam, humidity kuj, tshav kub tsis kam, corrosion kuj, thiab huab cua tsis kam.
4. Epoxy resin xim
Epoxy coatings muaj lub zog txuas zoo, muaj zog adhesion rau hlau, qhob, ntoo, iav thiab lwm yam ntaub ntawv, zoo alkali tsis kam, thiab zoo rwb thaiv tsev kev ua tau zoo.Qhov tsis zoo yog cov laus laus. Qhov xwm ntawm curing tus neeg saib xyuas kuj cuam tshuam rau kev ua haujlwm ntawm cov xim zaj duab xis.Epoxy resin xim yog ib pawg txheej txheej txheej raws li epoxy resin ua zaj duab xis.Epoxy resin muaj epoxy resin thiab cog roj fatty acid ester.Piv nrog cov txheej txheem epoxy, txheej txheej muaj qhov zoo ntawm tus nqi qis thiab tsis zoo alkali tsis kam.Feem ntau siv hauv ntau yam xim hlau thiab cov khoom siv sab nraum zoov anticorrosive coatings rau cov nroj tsuag tshuaj.
5. Polyurethane xim
Polyurethane resin yog siv rau anticorrosive txheej: ob lub Cheebtsam: isocyanate-NCO thiab hydroxyl pawg.Poly aminotropine (polyurethane) yog tov nrog dual-components thaum siv thiab qhia txog solidification.
Polyurethane coatings muaj lub cev zoo txhua yam kev ua tau zoo, tawv xim zaj duab xis, hloov tau, ci, tag nrho, tag nrho, hnav tsis kam, muaj zog adhesion, corrosion kuj, roj kuj, acid, tshuaj, muaj pa roj thiab lwm yam ntxwv. epoxy txheej; kev laus tiv thaiv yog zoo dua li epoxy txheej, uas feem ntau yog siv los ua cov xim ntawm lub ntsej muag lossis ua cov xim primer; polyurethane resin tuaj yeem sib xyaw nrog ntau yam resin, uas tuaj yeem hloov kho kom tau raws li kev siv ntau yam; Chav kub kho lossis cua sov thiab kho, qhov kub tsis tshua muaj ({0}} degree C) kuj tuaj yeem ua kom ruaj khov; polykeexate Cheebtsam muaj kev ruaj ntseg cia tsis zoo, thiab dej yuav tsum tau muab cais kom tsis txhob khov.Polyurethane txheej yog cov nqi siab thiab kev pab lub neej ntev.
6.
Txais cov txheej txheem tshwj xeeb embedded hauv ob sab phlu, cov ntaub ntawv corrosion-resistant yog tsim nyob rau hauv cov yeeb nkab steel.This corrosive khoom yuav beolate lub oilfield corrosive kua thiab roj los ntawm cov yeeb nkab steel los muab ib tug internal anticorrosive hauv ob sab phlu rau steel teb steel yeeb nkab thiab pipeline. Cov kav dej puas los yog cov dej hauv qab dej, cov nqi hloov pauv yog siab heev.Nws tuaj yeem muab cov khoom zoo corrosion nyob rau hauv ib puag ncig hnyav heev, uas yog unmatched los ntawm lwm yam khoom.
7. Polyethylene, polypropylene cob txheej
Polyethylene resin anticorrosive txheej yog zaj duab xis txheej ua los ntawm monomer resin.Polyethylene txheej tau dav tsim thiab siv.
Polyethylene pipeline muaj zog antiseptic sealing, siab mechanical zog, muaj zog waterproofing, ruaj khov zoo, yooj yim siv, zoo applicability, thiab tsis ua phem rau ib puag ncig.PE tsis tshua muaj dej nqus tus nqi (hauv qab 0) .01%), siab epoxy zog , tsis tshua muaj PE dej nqus, zoo kub-melt kua nplaum, zoo softness, siab anti-corrosion kev cia siab.Qhov tsis zoo yog tias tus nqi siab dua lwm cov khoom siv ntxiv.Cov txheej txheem raw khoom yog nplua nuj nyob rau hauv qhov chaw thiab tau dav siv nyob rau hauv corrosion.
8. Fu Fu resin xim
Auous resin coatings yog resistant rau ntau yam uas tsis yog-oxidized inorganic acids, electrolyte daws, thiab ntau yam organic solvents. Cov alkali kuj tseem ceeb heev, tab sis cov antioxidant tsis zoo.Afu resin series anticorrosive txheej muaj xws li bran glycol coatings, pyramidonidine formaldehyde coatings thiab hloov 呋 resin coatings.
9. xim roj hmab
Roj hmab anticorrosive coatings yog tsim los ntawm kev kho tshuaj los yog kev kho tshuab ntawm cov roj hmab ntuj los yog hluavtaws roj hmab, ntxiv cov kuab tshuaj, fillers, pigments, catalysts, thiab lwm yam.
10. Asphalt xim
Asphalt yog ib qho tseem ceeb anticorrosive coatings.Tshwj xeeb tshaj yog thee tsom asphalt yog qhov zoo tshaj plaws.Coal scorched asphalt txheej yog tus nqi qis thiab muaj qhov zoo ntawm cov dej tsis kam.Tom qab kaum xyoo ntawm soaking hauv dej, nws cov dej nqus dej tsuas yog {{ 0}}.1% -0.2%; kev yaig ntawm qee cov tshuaj lom neeg tawm tsam tiv taus; nws tseem muaj qhov ntub dej zoo rau qhov tsis ua tiav xeb - tshem tawm steel nto; Tus nqi qis.Nws qhov tsis zoo yog tias nws yog crispy nyob rau lub caij ntuj no thiab mos nyob rau lub caij ntuj sov.Tom qab raug, qee cov khoom xyaw volatilize thiab khiav tawm tuaj yeem tawg cov xim zaj duab xis.Cov kev tsis zoo no tuaj yeem txhim kho los ntawm kev ntxiv lwm cov resins.Piv txwv li, ntxiv cov roj hmab chloride tuaj yeem txhim kho lub dryness ntawm asphalt txheej thiab txhim kho cov shortcomings ntawm crispy thiab lub caij ntuj sov softness; epoxy asphalt coatings ua los ntawm epoxy resin muaj qhov zoo ntawm asphalt coatings thiab epoxy coatings.Effect.Cov asphalt coatings tau siv rau hauv qab ntawm lub thawv, hauv qab ntawm lub nkoj, lub rooj vag dock, hleb, thiab lwm yam, thiab muaj qhov zoo. anticorrosive cuam tshuam.
11. Evaporation ntawm kev noj nyiaj txiag txheej
Heavy anti-corrosion coatings yog piv rau cov anticorrosive coatings zoo tib yam.Nws yog hais txog cov anticorrosive coatings uas muaj ntau tshaj li ob peb zaug siab dua li cov corrosive coatings nyob rau hauv hnyav corrosion tej yam kev mob. lub neej ntawm ntau tshaj li ob peb xyoos.Nws yog tsuas yog siv rau cov qauv marine thiab cov khoom siv tshuaj, tso tsheb hlau luam thiab cov kav dej.
