2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-15 04:12
Muaj ntau cov xim thiab cov xim txha hniav laus tau nthuav tawm ntawm kev ua lag luam ntawm cov ntaub ntawv tiav hnub no. Epoxy compounds yog nrov heev, txawm li cas los xij, lawv yuav tsum raug xaiv ua tib zoo thiab raug raws li qhov ua tau. Cov neeg tsim khoom tham txog cov txiaj ntsig ntawm lawv cov khoom zoo heev, thiab nws tsis yooj yim to taub nws cov txiaj ntsig.
Peculiarities
Cov xim yuav tsum tsim kom zoo nkauj txheej saum npoo, ntxiv rau, tiv thaiv nws los ntawm cov tshuaj phem thiab lub cev txheej txheem thiab khaws nws cov txiaj ntsig kom ntev li ntev tau. Cov neeg tsim khoom tau sim ua kom tiav cov kev ntsuas no tau ntev heev, thiab hauv cov txheej txheem ntawm txoj haujlwm no, cov xim pleev xim epoxy tau tsim txog ib nrab xyoo dhau los. Qhov tsis ntawm cov txheej txheej no tau txuas ntxiv txhim kho thiab txhim kho tau ntev.
Ntau yam ntawm epoxy sib xyaw tau muab faib ua hmoov, ob qho khoom siv thiab nthuav tawm hauv daim ntawv aerosol.
Cov xim pleev xim yog siv thaum koj xav tau pleev xim rau ntau tus qauv lossis ntu, kev ua haujlwm no tau ua nruj me ntsis hauv chav tshwj xeeb uas siv cov cuab yeej tshwj xeeb.
Cov xim sib tov muaj qhov kub ua kom kub epoxy cob. Cov txheej dhau los ua kom muaj zog thiab ruaj khov, nws tiv thaiv cov hlau thiab lwm yam tshuaj zoo los ntawm ntau yam tsis zoo.
Ntxiv rau cov xim (granules me me), ib qho xim epoxy tseem suav nrog kev hloov kho (uas tso cai rau zas xim kom faib tusyees) thiab cov khi (cov yas hnyav hnyav hnyav).
Qhov zoo thiab qhov tsis zoo
Epoxy xim sib xyaw ua ke zoo rau ntawm cov khoom ntawm ib qho khoom siv, txawm tias yas lossis pob zeb.
Cov txheej txheej ruaj khov tiv thaiv dej, tshuaj lom neeg xeb thiab ua rau muaj kev phom sij rau lub neej. Cov yeeb yaj kiab yog cov cuab yeej muaj zog, hloov pauv tau yooj yim thiab txawm tias muaj kev sib txhuam, uas txhais tau tias nws yuav siv sijhawm ntev txaus.
Cov ntsiab lus khib nyiab siab tso cai rau txwv rau ib txheej xwb , qhov no txaus rau qhov ib txwm siv ntawm ntu, thaiv thiab txheej txheem. Kev tiv thaiv kab mob rau cov pa roj carbon (cov khoom siv roj av) thiab cov kuab tshuaj yog qhov tseem ceeb heev rau kev lag luam tsheb.
Thaum siv cov xim epoxy hauv tsev thiab chav tsev, chaw ua haujlwm, ntau yam ntawm lawv lub suab nrov dhau los ua cov khoom muaj nqis. Txawm tias nyob hauv chav dej lossis ntawm phab ntsa ntawm lub pas dej, lawv tuaj yeem tuav tau zoo thiab muab kev tiv thaiv tsim nyog tiv thaiv ya raws. Nws tsis muaj qhov txawv dab tsi raws nraim rau xim - hauv pem teb lossis phab ntsa.
Kev tiv thaiv zoo heev rau cov kua qaub, roj cua thiab alkalis yuav tsum raug suav hais tias yog khoom muaj nqis. Raws li rau txoj haujlwm tsis muaj zog, lawv muaj raws li hauv qab no:
- Siab rhiab heev rau ultraviolet teeb.
- Ceev ceev daj nrog cua sov tseem ceeb.
- Kev ziab yuav siv sijhawm ntau dua 24 teev.
- Cov chav yuav tsum tau ua pa kom huv, thiab ntxuav ua ntej thov yuav tsum tau ua tib zoo.
- Nws tsis tuaj yeem lees txais los pleev xim ntawm qhov kub qis dua 15 degrees Celsius.
- Raws li thev naus laus zis, nws tsis tsim nyog siv rau qhov ua kom sov ntau dua +60 C.
Saib
Epoxies poob rau hauv ob pawg:
Thermosetting xim lees paub cov uas tau ua raws cov khoom siv uas tau qhib thaum cua sov thiab pab txhawb kev nthuav tawm cov xim, lawv cov polymerization. Cov peev nyiaj zoo li no tau txawv los ntawm cov khoom tiv taus rau cov yam ntxwv puas yam.
Nyob rau hauv lem, thermoplastic txheej yuav tsum tau siv rau kev npaj ua kom zoo zoo los ntawm kev txau cov teeb meem qhuav tom qab lub substrate tau sov sov.
Epoxy-based tsheb xim feem ntau muaj nyob hauv cov tshuaj tsuag aerosol nrog cov khoom uas kho tsis tau cua sov.
Kev sib xyaw ua ke ntawm cov xim tha xim nyiam cov neeg feem ntau, vim tias lawv ua kom yooj yim rau siv cov zas xim ntawm lawv tus kheej. Nws yuav tsum raug sau tseg tias cov khoom sib xyaw ua haujlwm tau zoo tsuas yog nrog kev nruj ua raws cov txheej txheem thev naus laus zis ., ua tib zoo sib xyaw cov khoom xyaw tseem ceeb nrog cov tawv tawv thiab ua raws nruj rau qhov sib piv.
Qhov sib xyaw ua ke ob qho, ntxiv rau kev pleev xim, kuj tseem tuaj yeem siv ua lub hauv paus uas txhim kho kev tiv thaiv ntawm qhov chaw ntawm hnav.
Daim ntawv thov kev sib xyaw ua ke hauv cov txheej tuab yog qhov siv tau, qhov no yuav ua rau txhua qhov pore thiab ua kom txhua qhov tsis sib xws ntawm qhov nyem, tab sis nws yog ib qho tseem ceeb uas yuav tsum tau coj mus rau hauv tus account tias cov khoom tsim nyog rau kev thov ntau tshaj 4 teev.
Rau cov hlau, nws raug nquahu kom siv lub npe hu ua epostat, tus yam ntxwv los ntawm kev tiv thaiv kev txhim kho corrosion ntau ntxiv. Nws tsim nyog rau pleev xim rau cov kav hlau, thiab lub hom phiaj tshwj xeeb ntawm cov raj xa dej tsis muaj teeb meem, kev tiv thaiv yuav ntseeg tau.
Lawv sim npog cov tso tsheb hlau luam uas siv roj hmab EP 7003. txha hniav laus EP 1003, nws muaj peev xwm los thaiv qhov muaj zog ua kom muaj zog , los ntawm kev tsim cov cav tov thiab tsheb, hydraulic engineering complexes ntawm ntau yam raug kev txom nyem.
Yog tias cov xim tau rau ntawm daim tawv nqaij, nws yuav tsum tau muab tshem tawm tam sim ntawd nrog cawv tsis zoo lossis dej xab npum sov; cov polymerized muaj pes tsawg leeg yuav luag tsis raug tshem tawm.
Txawm hais tias twb muaj qee qhov xim epoxy tam sim no, lawv tsis tuaj yeem suav tias yog thoob ntiaj teb. Tus nqi ntawm txheej txheej yog siab heev, nws yuav tsum tau thov los ntawm cov kws tshaj lij (rau cov amateurs nws nyuaj rau muab kev ntsuas kev nyab xeeb tsim nyog).
Kev sib xyaw xim rau cov pob zeb tau siv tsis ntev los no; kom tsis txhob poob qhov khoom thaum ntxov, cov khoom sib xyaw no yuav tsum tau diluted nrog dej distilled … Lub sijhawm ntev epoxy dispersion tau tsim. Dej-based epoxy pem teb txha hniav laus tuaj yeem siv tau txawm tias ntub cov pob zeb, cov txheej txheem txheej txheej txheej zoo dua li 10-15 xyoo dhau los.
Ib txwm tshuaj xyuas raws li qhov GOST nws tau tshaj tawm ib lossis lwm cov xim thiab cov khoom siv kua roj vanish. Tsuas yog txoj hauv kev no tso cai rau koj kom zam dhau qhov teeb meem tshwm sim yav tom ntej, thiab yuav cov khoom lag luam zoo thaum xub thawj.
Tseem ceeb: nyob hauv tsev, pleev xim pleev xim epoxy tsuas yog siv tau, tab sis rau pleev xim rau cov txheej txheem tsim khoom, khoom siv, thiab ntxiv rau, tsuas yog qhov "kub" xaiv yog qhov tsim nyog. Tsuas yog nws tso cai rau koj kom ua tiav qhov xav tau lub zog ntawm txheej txheej tsim.
Kev sib xyaw ntawm epoxy resins nrog acrylics feem ntau yog sawv cev los ntawm kev npaj aerosol. Cov kev sib xyaw ua ke no yog qhov txawv los ntawm kev tiv thaiv kev tiv thaiv corrosion zoo, tiv taus rau cov tshuaj caustic thiab cov khoom siv dag zog. Plua plav thiab av yuav tsis tso rau ntawm qhov chaw. Hom xim txheej uas tsim nyob rau hauv rooj plaub no yooj yim zam txawm tias khawb thiab nti, kev pab lub neej ntawm lub hauv paus, tshwj xeeb yog hlau, nce ntxiv.
Epoxy-polyester tebchaw yog qhov pheej yig, kev tiv thaiv kom ntxhib txhuam yog qhov nruab nrab. Qhov saum npoo yuav tsis tig daj, txawm tias lub hnub tshav kub kub tas li ci rau nws. Tab sis peb yuav tsum coj mus rau hauv tus account tias kev tiv thaiv kev xeb thiab cov kuab tshuaj tshwj xeeb yog tsawg heev, rau feem ntau xws li txheej txheej yog qhov zoo nkauj.
Polyester hmoov sib xyaw ua ke hnav tsawg heev, koj tuaj yeem xaiv yuav luag txhua yam xim thiab kev ntxhib los mos. Gloss qib sib txawv, thiab cov tshuaj yuav luag tsis muaj tshuaj lom. Nws tus kheej tsis tuaj yeem ua rau muaj kev sib txhuam thiab tiv thaiv cov xim pleev xim los ntawm nws. Qee qhov xwm txheej, nws tuaj yeem siv los hloov pauv rau cov tshuaj ua kom puv puv.
Qhov ntsuas kub tsawg yuav tsum yog polymerized tsuas yog hauv cov chav tshwj xeeb, qhov twg thaum thawj 20 feeb huab cua sov txog 180 degrees; dyes uas tuaj yeem tiv taus 220 degrees hauv thawj 600 s ntawm kev ua yog suav tias yog tus qauv.
Chaw tsim tshuaj paus
Yog tias peb tig mus rau qhov kev paub ntawm cov kws kho vajtse thiab cov neeg tsim khoom, tom qab ntawd lawv feem ntau muab cov tshuaj pleev xim epoxy ntawm cov khoom ua ntej. Epstone … Cov khoom siv no rau kev ua tiav cov plag tsev tsim tawm hauv Russia thiab tsis tshua kim, thaum cov yam ntxwv zoo tsis muaj qhov phem dua li cov piv txwv los ntawm kev coj los sib tw.
Lwm qhov khoom nrov Lavxias yog " Elakor-ED": koj puas xav tau ntau tus thwjtim? … Qhov ua tsis tiav ntawm cov tshuaj tsis muaj tshuaj lom ua rau sib xyaw tau zoo dua, tab sis kev tiv thaiv zoo yog qhov tsis muaj zog. Koj tuaj yeem khaws cov xim tsuas yog ntawm qhov kub tsis siab tshaj 25 degrees Celsius rau rau lub hlis.
American epoxies tau suav tias yog thev naus laus zis siab dua thiab ib puag ncig zoo. Tab sis lawv cov nqi yog qhov siab heev, thiab qee zaum nws nyuaj rau yuav cov khoom sib xyaw. Cov xim Finnish dhau los ua cov kev daws teeb meem zoo heev, lawv muab cov khoom zoo ntawm tus nqi me ntsis siab dua qhov nruab nrab.
Yuav xaiv li cas?
Ua kom tiav ib lub pob zeb ua ke nrog cov epoxy sib xyaw yuav tsum xaiv cov kev xaiv nrog cov yam ntxwv tiv thaiv kev tiv thaiv ntau ntxiv thiab qhov qis tshaj. Cov xim tha xim ntawm hom no tiv thaiv cov chav da dej kom zoo; hais txog kev ua tau zoo, lawv yuav luag zoo li cov vuas tiag. LKM yuav tso cai kom tsis txhob xeb ntawm cov kauj, lwm yam hlau, tiv thaiv ntoo los ntawm rot thiab zom kab.
Rau da dej, xim epoxy kuj tseem zoo: nws txaus los hais qhia tias nws tau siv txawm tias yog lub nkoj thiab lub nkoj, uas yog, txhua yam yog ua kom tsis muaj dej.
Cov hniav da dej ntawm hom no tau tsim los ua kom rov zoo dua ntawm lawv cov txheej. Koj yuav tsum pleev xim kom zoo zoo kom tsis txhob muaj cov ntxhiab tsw .… Nws kuj yuav tsum raug coj mus rau hauv tus account tias cov tshuaj epoxy tuaj yeem ua rau lom, thiab nyob rau hauv cov xwm txheej tsis zoo uas lawv tau txais sai sai tsis zoo.
Cov tshuaj epoxy rau pleev xim rau cov xim pleev xim (cov vuas luaj ceramic) ua haujlwm tau zoo, tab sis koj yuav tsum tau siv cov txheej txheem tshwj xeeb raws li cov kuab tshuaj organic ntxiv rau lawv. Qhov kom zoo dua yog tias txheej yuav nyuaj thiab tiv taus. Coj mus rau hauv tus account cov yam ntxwv ntawm cov xim muaj pes tsawg leeg (nws cov nplaum), uas yuav tsum tau siab dua, tsis muaj qhov ua tau zoo ntawm cov nplais nws tus kheej.
Pobzeb yog tus yam ntxwv los ntawm cov nplaum tsis zoo, qhov ntsuas no zoo dua me ntsis hauv cov nplais thiab ntau yam clinker, thiab cov haujlwm zoo tshaj plaws hauv gypsum.
Ib txwm ua tib zoo saib seb cov av nyob hauv chav nyob siab npaum li cas .… Cov xim epoxy zoo tagnrho rau pleev xim rau hauv pem teb: lawv qhuav sai, ntxuav kom zoo, thiab lwm yam. Nyeem tag nrho cov ntaub ntawv ntawm kev lom thiab ua kom ntev ntawm txheej, nco ntsoov tias txawm tias sab nrauv zoo li cov kev xaiv tuaj yeem sib txawv raws li cov ntsiab lus sab hauv.
Cov tshuaj aerosol ua los ntawm kev sib xyaw epoxy ntshiab yog qhov tsis tshua muaj; nws tsuas yog siv los sib xyaw nrog cov khoom siv acrylic. Qhov zoo ntawm cov tshuaj no yog:
- Khoom qib ntawm kev tiv thaiv kev tiv thaiv corrosion.
- Muaj kev tiv thaiv zoo rau cov yam tsis zoo, suav nrog cov tshuaj tsw qab.
- Yuav luag tiav tshem tawm ntawm khawb thiab chips.
Kev sib xyaw xim epoxy tuaj yeem siv rau txhua hom yas, thiab lawv ua raws li lub hauv paus ntseeg tau zoo thiab muaj txiaj ntsig.
Nws yuav tsum tau sau tseg tias polyethylene, polystyrene thiab polycarbonate, hauv txoj ntsiab cai, tsis tau npaj rau xim nrog txhua yam.
Pab Qhia
Ob-pob epoxy xim yog tsim nrog ua ke ntawm epoxy resins thiab tawv. Kev sib cuam tshuam nrog ib leeg, lawv nkag mus rau hauv cov tshuaj tiv thaiv exothermic (hauv lwm lo lus, lawv tau kub heev).
Ceev faj thiab ceev faj thaum koj txiav txim siab pleev xim ib yam nrog cov sib xyaw no, ib txwm hnav hnab looj tes tiv thaiv thiab hnav khaub ncaws nruj, tsom iav thiab lub tshuab ua pa.
Txhawm rau muab sib xyaw thiab sib xyaw ua ke, koj yuav tsum tau siv cov cuab yeej ntoo tshwj xeeb, cov uas siv rau lub hom phiaj ua noj ua haus yog qhov tsis tsim nyog. Txawm hais tias thaj tsam twg yuav tsum pleev xim thiab lwm yam nuances, koj yuav tsum tau saib xyuas qhov cua kom zoo.
Yog tias cov xim tau rau ntawm daim tawv nqaij, nws yuav tsum tau muab tshem tawm tam sim ntawd nrog cawv tsis zoo lossis dej ntxhua khaub ncaws sov, cov tshuaj polymerized tau siv tsis tau tshem tawm.
Nco ntsoov khaws cov kaus poom nrog cov khoom tawm ntawm tshav ntuj ncaj qha, qhov twg huab cua yuav tsis sov ntau dua 40 degrees .… Nws yog qhov tsim nyog los pleev xim rau cov plaster nrog cov sib txuas nrog cov khoom siv hluav taws xob zoo, tom qab ntawd qhov kev pheej hmoo ntawm kev kub ntxhov yuav tsawg.
Kev pleev xim rau thaj chaw loj uas siv cov tshuaj tsuag tsis yog tsuas yog yooj yim dua, tab sis kuj tseem pheej yig dua , qhov no yog txoj hauv kev yooj yim tshaj plaws los txwv kev siv cov xim rau tus lej tsim nyog. Txhawm rau siv cov xim epoxy rau saum npoo av, koj yuav tsum sib tov nws li 2-3 feeb nrog cov tshuaj ntxiv, npaj cov xim, ua kom tawv tawv tau teev tseg los ntawm cov khw (qhov feem ntawm tag nrho cov sib xyaw rau cov tawv tawv yog 10: 1.7).
Cov xim epoxy thiab lawv cov kev hloov kho nrog cov khoom ntxiv tuaj yeem muaj ntau yam tshwj xeeb: qee qhov glide tsawg heev, lwm qhov ci hauv qhov tsaus ntuj, lwm tus lav tau qib siab tshaj plaws ntawm kev tiv thaiv, thiab lwm tus khaws lawv cov ntawv zoo nkauj lossis qhuav sai.
Koj tuaj yeem siv ntau hom xim zoo li no los kho tsev thiab rooj tog hauv chaw ua haujlwm, ntim rau khaws cov tshuaj muaj kuab lom, cov khoom siv mus pw hav zoov thiab cov khoom zoo nkauj hauv vaj thiab chaw ua si. Koj tsuas yog yuav tsum ua tib zoo xaiv hom tshwj xeeb thiab nrhiav txhua yam ntsiab lus hais txog nws.
Nws yog qhov yooj yim heev txhawm rau txheeb xyuas pom muaj cov tee dej tso rau ntawm qhov chaw da dej - koj tsuas yog yuav tsum ua kom pom nws nrog lub teeb nyem LED, yav tas los tua lub teeb ua haujlwm dhau los, thiab txhua qhov tsis xws yuav tshwm sim tam sim. Koj tuaj yeem yooj yim kos rau thaj chaw deformed.
Tom qab ua xuab zeb thiab ua kom zoo rau saum npoo, nws yuav tsum tau yaug ob peb zaug nrog dej huv, tshem tawm ua ntej txhua yam kab mob uas tau tshem tawm los ntawm txoj kev qhuav.
Rau kev ua haujlwm, koj yuav tsum tau txhuam tsuas yog nrog cov plaub hau ntuj (tsawg kawg yog peb qhov sib txawv), tus txhuam hniav lossis tus ntsia hlau kuj tseem muaj txiaj ntsig, uas koj yuav tsum tau tshem tawm cov plaub hau ua los ntawm saum npoo. Npaj txiab ua ntej kom koj tuaj yeem txhuam cov txhuam xoob thiab xa rov mus rau nws lub xeev qub.
Cov xim epoxy yuav tsum tau npaj ua ntu me me, rau 10-15 feeb ntawm kev ua haujlwm, vim nws tawv tawv heev . Ua raws li cov cai yooj yim no, nws yuav yooj yim rau xaiv thiab pleev xim epoxy yam tsis muaj teeb meem.
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