Kev lag luam tam sim no tab tom txhim kho kom nrawm, xav tau ntau thiab ntau cov khoom sib txawv thiab cov khoom siv.
Ntau yam dyes tau xav tau niaj hnub no ntau dua li niaj hnub no, nrog kev pab los ntawm cov khoom lag luam tau txais qhov zoo nkauj zoo nkauj, nrog rau cov khoom uas pab lawv tiv taus kev cuam tshuam ib puag ncig.
Cov tshuaj no kuj suav nrog cov xim epoxy.
Qhov no yog dab tsi?
Qhov no yog cov khoom siv thermoset hmoov uas tau tsim los ntev heev, tab sis tseem siv dav hauv kev lag luam niaj hnub no. Nco ntsoov tias cov tshuaj no tuaj yeem tsim cov txheej txheem zoo heev nrog cov khoom zoo nkauj zoo nkauj, tab sis feem ntau lawv tau siv los pleev xim rau ntau yam kev lag luam thiab kev lag luam thiab cov cuab yeej siv tshuab. Lawv cov khoom muaj ntau yam sib txawv.
Nyob zoo ib tsoom niam txiv kwv tij neej tsas sawv daws.
Lwm qhov zoo dua yog lawv cov haujlwm siab: nyob ntawm seb hom resin lossis hardener siv, epoxyCov xim tuaj yeem siv los tsim cov txheej txheem nrog cov khoom ua ntej.
Piv txwv li, yog tias koj xaiv qhov muaj pes tsawg leeg, ces nws muaj peev xwm siv cov xim zoo li no hauv kev tsim cov khoom siv rau kev lag luam khoom noj. Hmoov tsis zoo, qhov tseeb tias lawv muaj kev tiv thaiv me ntsis rau cov nag lossis daus hauv huab cua tiv thaiv kev siv cov khoom zoo li no.
Applications
Feem ntau lawv yog siv los pleev xim rau cov khoom lag luam, tiv thaiv tom kawg los ntawm corrosion. Tsis tas li ntawd, cov xim no muaj cov khoom siv hluav taws xob siab, thiab yog li ntawd tau siv dav hauv lub zog hluav taws xob.
Qhov xwm txheej kawg tau ua rau cov xim epoxy zoo rau ntau qhov tsis yooj yim insulators uas muaj ntau hauv kev lag luam: kev sib xyaw, impregnation nrog cov kua roj vanish tsawg, thiab qhwv nrog cov ntaub ntawv insulating.
Nws yog qhov tseeb vim tias muaj ntau cov khoom muaj txiaj ntsig zoo ua ke nrog lawv cov nqi qis uas cov xim epoxy tsis tsuas yog muaj sia nyob rau ntau xyoo ntawm kev ua haujlwm, tab sis kuj xyaum hloov ntau hom kev siv cov tshuaj insulating.
Properties
Raws li peb tau hais lawm, cov tshuaj no tiv taus ntau yam tshuaj lom neeg ib puag ncig.
Muab hais tias lawv zoo kawg nkaus tiv cov teebmeem ntawm cov roj kev lag luam, alkalis, acids thiab roj av, lawv tau dhau los siv dav hauv kev lag luam roj raupainting ntawm internal qhov chaw ntawm pipelines. Tsuas yog 500 microns ntawm cov khoom siv hluavtaws no siv rau cov yeeb nkab phab ntsa kom cais nws los ntawm kev ua phem ntawm ib puag ncig.
Ntxiv rau, epoxy-raws li cov xim siv tau tsis hlawv, thiab yog li tiv thaiv cov khoom siv hluav taws xob zoo thaum muaj cua sov heev.
Nws yog qhov yooj yim heev los siv cov xim zoo li no rau saum npoo, vim lawv muaj cov nplaum nplaum zoo. Yog li, txawm tias txaus corroded thiab yav tas los kho hlau tuaj yeem pleev xim nrog lawv yam tsis muaj kev npaj ua ntej.
Tsis tas li ntawd, epoxy pobzeb xim tsis ntev los no tau nthuav dav txawm nyob hauv lub neej txhua hnub, vim nws tuaj yeem siv tau yooj yim kho cov vuas qub, kho tag nrho nws qhov tsis txaus.
