Pankhani yokonza ndi kukonza miyala, epoxy resin imagwiritsidwa ntchito kwambiri. Ndi mphamvu yake yabwino yomangirira, kuchepa kwapang'onopang'ono kuchiritsa, komanso kunyowa kwabwino komanso permeability, yakhala chinthu choyenera kukonzanso zolakwika zamwala ndi kulimbikitsa mwala. Komabe, kuchiritsa kwa epoxy resin ndizovuta ndipo kumaphatikizapo zinthu zingapo zofunika. Kuwongolera zinthu izi ndikofunikira kuti zitsimikizire kuti mwala umachiritsa komanso kugwira ntchito komaliza. Nkhaniyi iwunika zinthu zofunika kwambiri pakuchiritsa kwa epoxy resin ndikupereka njira zofananira zowongolera.
Kusankhidwa kwa epoxy resin ndi wochiritsa
Epoxy utomoni ndi organic polima pawiri yomwe ili ndi magulu awiri kapena kuposerapo epoxy. Magulu a epoxy mu kapangidwe kake ka maselo amakhala otakataka kwambiri ndipo amatha kukumana ndi machitidwe olumikizana ndi mitundu yosiyanasiyana ya machiritso kuti apange polima yama netiweki atatu. Wochiritsa ndiye chinthu chofunikira kwambiri chomwe chimapangitsa kuti utomoni wa epoxy usinthe kuchokera kumadzi kukhala olimba. Imakhala ndi mawonekedwe owonjezera owonjezera ndi magulu a epoxy mu epoxy resin, zomwe zimayambitsa machitidwe ophatikizira olumikizana kuti apange network yolimba komanso yokhazikika ya polima.
Posankha epoxy resin ndi wochiritsa, mawonekedwe amwala ndi malo ogwiritsira ntchito ayenera kuganiziridwa. Mwachitsanzo, pazochitika zogwiritsira ntchito zomwe zimafuna kuchiritsidwa mwamsanga, machiritso ochiritsira omwe ali ndi machitidwe ofulumira, monga aliphatic polyamines, akhoza kusankhidwa; kwa zipangizo zamwala zomwe zimafuna kutentha kwakukulu, ma polyamines onunkhira kapena mankhwala ochiritsa anhydride angasankhidwe. Kuphatikiza apo, kuchuluka kwa mankhwala ochiritsa kuyeneranso kuyendetsedwa bwino. Kuchuluka kapena kucheperako kungakhudze zotsatira zochiritsa ndi ntchito yomaliza. Nthawi zambiri, kuchuluka kwa mankhwala ochiritsa kuyenera kutsimikiziridwa potengera epoxy yofanana ndi utomoni wa epoxy ndi haidrojeni yogwira ntchito yofananira ndi wochiritsa kuti zitsimikizire kuti ziwirizo zitha kuchitapo kanthu.
Kuwongolera kutentha kwa machiritso
Kuchiritsa kutentha ndi chimodzi mwazinthu zofunika zomwe zimakhudza kuchiritsa kwa epoxy resin. Mankhwala ochiritsira osiyanasiyana ndi oyenera kusiyanasiyana kwa kutentha, monga ochiritsa otsika kutentha omwe ali ndi kutentha pansi pa kutentha kwa chipinda, ochiritsa kutentha kwa chipinda ndi kutentha kwa firiji kufika 50 ° C, ochiritsa kutentha kwapakati ndi kutentha kwa 50 ° C mpaka 100 ° C, ndi ochiritsa kutentha kwambiri pamwamba pa 10 ° C.
Kutentha kwambiri kapena kutsika kwambiri kumakhala ndi zotsatira zoyipa pakuchiritsa. Kutentha kwambiri kungayambitse msanga wa epoxy resin ndi machiritso, kufupikitsa moyo wa mphika wa osakaniza, ndikuwonjezera mphamvu; pamene kutentha kochepa kwambiri kumachepetsa kuchiritsa, kukulitsa nthawi yochiritsa, ndipo kungayambitsenso kuchiritsa kosakwanira.
Muzochita zogwiritsidwa ntchito, kutentha koyenera kochizira kuyenera kutsimikiziridwa molingana ndi mtundu wa mankhwala ochiritsira osankhidwa ndi malo omangira mwala. Mwachitsanzo, pomanga m'malo otentha kwambiri m'nyengo yozizira, zida zotenthetsera zitha kugwiritsidwa ntchito kutenthetsa mwala ndi epoxy resin osakaniza kuti muwonjezere kuchuluka kwa machiritso; mukakhala m'malo otentha kwambiri m'chilimwe, chisamaliro chiyenera kutengedwa kuti tipewe kuwala kwa dzuwa ndi kutentha kwa kutentha kwambiri kuti tipewe kuchiritsa msanga kwa epoxy resin.
Kusakaniza kwa chiŵerengero ndi kusakaniza kufanana
Chiŵerengero chosakanikirana cha epoxy resin ndi wothandizira mankhwala ayenera kugawidwa molingana ndi zofunikira za bukhu la mankhwala. Kusakaniza kosayenera kungayambitse kuchiritsa kosakwanira kapena kuchepa kwa ntchito pambuyo pochiritsa. Mwachitsanzo, mankhwala ochiritsira kwambiri amapangitsa kuti epoxy resin yochiritsidwa ikhale yolimba komanso yolimba, pomwe wochiritsira wosakwanira angayambitse kuchiritsa kosakwanira ndikusokoneza mphamvu yomangirira. Pogwira ntchito zenizeni, zida zoyezera zenizeni, monga masikelo amagetsi, zingagwiritsidwe ntchito kuti zitsimikizire kulondola kwa chiŵerengero chosakanikirana.
Kusakaniza kufanana ndi chinthu chofunikira kwambiri chomwe chimakhudza machiritso. Kusakanikirana kosagwirizana kumapangitsa kuti pakhale kusakwanira kokwanira pakati pa epoxy resin ndi machiritso, kupanga madera osakwanira machiritso am'deralo, motero zimakhudza momwe zimagwirira ntchito komanso momwe mwala umagwirira ntchito. Panthawi yosakaniza, zipangizo zoyenera zosakaniza, monga chosakaniza chothamanga kwambiri, ziyenera kugwiritsidwa ntchito kuti zitsimikizire kuti epoxy resin ndi wothandizira mankhwala akhoza kusakanikirana mokwanira. Panthawi imodzimodziyo, nthawi yosakaniza iyeneranso kuyang'aniridwa mkati mwazoyenera. Kufupikitsa nthawi yosakaniza sikungapangitse yunifolomu yosakaniza, pamene nthawi yayitali yosakaniza ingapangitse kuti kusakaniza kuchiritse msanga.
Kuwongolera chinyezi chachilengedwe
Chinyezi cha chilengedwe chimakhalanso ndi zotsatira zina pa machiritso a epoxy resin. Chinyezi chochuluka chimapangitsa kuti epoxy resin itenge chinyezi mumlengalenga, zomwe zimakhudza machiritso, ndipo zimatha kuyambitsa thovu kapena ming'alu pamwamba pa epoxy resin yochiritsidwa. Choncho, pomanga malo okhala ndi chinyezi chambiri, njira zoyenera ziyenera kuchitidwa kuti muchepetse chinyezi cha chilengedwe, monga kugwiritsa ntchito zipangizo zowonongeka kapena kuika mpweya pamalo omangapo kuti atsimikizire kuti epoxy resin ikhoza kuchiza bwinobwino.
Prepreatment wa miyala pamwamba
Ukhondo ndi roughness wa pamwamba pa mwala zimakhudza kwambiri kugwirizana zotsatira za epoxy resin. Musanagwiritse ntchito guluu, pamwamba pa miyalayo iyenera kutsukidwa bwino kuti ichotse fumbi, mafuta, sera ndi zonyansa zina pamtunda kuti zitsimikizire kuti epoxy resin imatha kukhudzana ndi kugwirizana ndi miyala yamwala. Panthawi imodzimodziyo, kuuma koyenera kungathe kuonjezera malo olumikizana pakati pa epoxy resin ndi mwala ndikuwonjezera mphamvu zomangira. Pamwamba pa mwala ukhoza kuthandizidwa kale ndikupera, sandblasting ndi njira zina zowonjezera roughness yake.
Kuwongolera nthawi ya kuchiritsa
Nthawi yochiritsa imatanthawuza nthawi yofunikira kuti utomoni wa epoxy uchiritsidwe kuyambira pachiyambi cha kusakaniza. Kutalika kwa nthawi yochiritsa kumadalira zinthu monga mtundu wa epoxy resin, mtundu wa machiritso ndi machiritso. Muzochita zogwiritsidwa ntchito, nthawi yoyenera yochiritsa iyenera kutsimikiziridwa molingana ndi zofunikira zomanga ndi malo ogwiritsira ntchito mwala. Mwachitsanzo, pamiyala yomwe imayenera kugwiritsidwa ntchito mwachangu, njira ya epoxy resin yokhala ndi nthawi yayitali yochiritsa imatha kusankhidwa; ndi miyala ina yomwe ili ndi zofunikira zamphamvu zomangirira, nthawi yochiritsa imatha kukulitsidwa moyenerera kuwonetsetsa kuti utomoni wa epoxy ukhoza kuchiritsidwa kwathunthu.
Panthawi yochiritsa, mlingo wochiritsa wa epoxy resin uyenera kufufuzidwa nthawi zonse, zomwe zingayesedwe poyang'ana kusintha kwa mtundu wake, kusintha kwa kuuma komanso ngati kungathe kupirira mphamvu inayake yakunja. Pamene utomoni wa epoxy wachiritsidwa kwathunthu, kugaya, kupukuta ndi njira zina zingatheke.
Kugwiritsa ntchito zowonjezera
Pofuna kupititsa patsogolo ntchito ya epoxy resin, zina zowonjezera monga plasticizers, diluents, fillers, etc. nthawi zina zimawonjezeredwa ku epoxy resin. Plasticizers amatha kusintha kusinthasintha kwa utomoni wa epoxy ndikuchepetsa kulimba kwake pambuyo pochiritsa, koma mapulasitiki ochulukirapo amakhudza mphamvu yomangira ya epoxy resin. Ma diluents amatha kuchepetsa kukhuthala kwa epoxy resin ndikuwongolera kunyowa kwake komanso kupezeka kwake, koma kuchuluka kwake kuyeneranso kuwongoleredwa kuti zisakhudze machiritso. Zodzaza zimatha kukweza katundu wa epoxy resin ndikuchepetsa mtengo, koma kudzaza kwambiri kumachepetsa mphamvu yomangira komanso kulimba kwa epoxy resin.
Mukamagwiritsa ntchito zowonjezera, mtundu ndi kuchuluka kwa zowonjezera ziyenera kusankhidwa moyenerera molingana ndi mtundu wa epoxy resin komanso zofunikira pamwala. Panthawi imodzimodziyo, dongosolo la kuwonjezera zowonjezera ndi njira yosakaniza ziyenera kudziwikanso kuti zitsimikizidwe kuti zowonjezerazo zikhoza kufalikira mofanana mu epoxy resin.
Kuyang'anira ndi kuyang'anira khalidwe
Pakuchiritsa kwa utomoni wa epoxy, njira yowunikira bwino komanso yowunikira iyenera kukhazikitsidwa kuti zitsimikizire kuti mwala umachiritsa komanso kugwira ntchito komaliza. Zida zina zoyezera akatswiri ndi njira, monga kuyesa mphamvu yamanjenje, kuyesa kumeta ubweya wa ubweya, kuyesa kuuma, ndi zina zotere, zitha kugwiritsidwa ntchito kuyesa utomoni wochiritsidwa wa epoxy. Panthawi imodzimodziyo, ulalo uliwonse pakumanga uyenera kuyang'aniridwa, monga kusakaniza chiŵerengero, kutentha kwa machiritso, kuchiritsa nthawi, ndi zina zotero, kuti apeze mwamsanga ndi kukonza mavuto omwe angakhalepo.
Mapeto
Kugwiritsa ntchito utomoni wa epoxy pakukonza ndi kukonza miyala kumakhala ndi chiyembekezo chachikulu, koma kuchiritsa kwake kumakhala kovuta ndipo kumaphatikizapo zinthu zingapo zofunika. Kupyolera mu kusankha epoxy utomoni ndi kuchiritsa wothandizira, ulamuliro wa machiritso kutentha, ulamuliro wa kusakaniza chiŵerengero ndi kusakaniza kufanana, kusintha chinyezi chilengedwe, ndi pretreatment mwala pamwamba, kutsimikiza kwa machiritso nthawi, ntchito wololera za zina, ndi kulamulira okhwima anayendera khalidwe ndi kuwunika, machiritso zotsatira za epoxy utomoni, ndi yogwira ntchito utomoni epoxy akhoza kukhala ndi ntchito yomaliza ya mwala utomoni, ndi kupitiriza ntchito mwala. uinjiniya.
Muzochita zogwiritsidwa ntchito, njira zoyendetsera zinthu zomwe zili pamwambazi ziyenera kugwiritsidwa ntchito mosinthika molingana ndi mtundu wapadera wa miyala ndi malo omangamanga kuti akwaniritse ntchito yabwino yomanga.