I-epoxy resin yombhobho wesinyithi iyadingeka ukuze ifikelele kwiiyure ezingama-350 zovavanyo lokutshiza ityuwa phantsi komgangatho we-EN877, ngakumbiUmbhobho we-DS sml unokufikelela kwiiyure ezili-1500 zokutshiza ityuwauvavanyo(ndafumana isiqinisekiso seHong Kong CASTCO ngo-2025). Icetyiswa ukuba isetyenziswe kwiindawo ezifumileyo nezinemvula, ingakumbi elunxwemeni lolwandle, i-epoxy resin coating kwikhaka langaphandle lombhobho we-DS SML inika ukhuseleko olufanelekileyo kumbhobho. Ngokusetyenziswa kakhulu kweekhemikhali zasekhaya ezifana nee-organic acids kunye ne-caustic soda, i-epoxy coating yeyona nto ilungileyo ekuthinteleni izinto eziphazamisayo, ngelixa ikwadala imibhobho egudileyo ukuthintela ukuvaleka kokungcola. Iimpawu zokulwa nokugqwala kwemibhobho yesinyithi zenza ukuba isetyenziswe kakhulu kwiilabhoratri, izibhedlele, iifektri kunye neendawo zokuhlala kwihlabathi liphela.
Nangona kunjalo, ukuba ipeyinti ayigcinwanga kakuhle, inokubangela ukuba umbhobho wesinyithi otyhidiweyo ube mhlophe okanye utshintshe umbala emva kokupeyintwa, nto leyo echaphazela umgangatho wembonakalo kunye nokusebenza kokukhusela kwemveliso.
1. Indlela echanekileyo yokugcina ipeyinti ye-epoxy ye-A1
Ipeyinti ye-epoxy ye-A1 yindlela yokukhusela esebenza kakhulu, kwaye iimeko zokugcina kwayo zichaphazela ngokuthe ngqo ukuzinza kwengubo kunye nesiphumo sayo sokugcoba. Indlela efanelekileyo yokugcina ibandakanya ezi zinto zilandelayo:
1. Ulawulo lobushushu
Ubushushu obufanelekileyo: Ipeyinti ye-epoxy ye-A1 kufuneka igcinwe kwindawo engama-5℃ ~ 30℃ ukuthintela ubushushu obuphezulu okanye obuphantsi obuchaphazela ukuzinza kweekhemikhali zepeyinti.
Ziphephe iiqondo lobushushu ezigqithisileyo:Ubushushu obuphezulu (>35℃) buya kubangela ukuba isinyibilikisi esikwipeyinti siphele ngokukhawuleza, kwaye icandelo le-resin linokuthi lifumane i-polymerization reaction, eya kwandisa i-viscosity yepeyinti okanye ide ibangele ukungaphumeleli kokupholisa.
Ubushushu obuphantsi (<0℃) bunokubangela ukuba izinto ezithile kwipeyinti zikhanye okanye zahlukane, nto leyo ebangela ukuncipha kokunamathelana okanye umbala ongalinganiyo emva kokupeyinta.
2. Ulawulo lomswakama
Indawo eyomileyo: Umswakama oqhelekileyo kwindawo yokugcina kufuneka ulawulwe phakathi kwe-50% kunye ne-70% ukuthintela umoya ofumileyo ukuba ungangeni kwibhakethi yepeyinti.
Ivaliwe kwaye ayifumi: Ibhakethi yepeyinti kufuneka ivalwe ngokuqinileyo ukuze kuthintelwe ukuba umswakama ungangeni, kungenjalo inokubangela ukuqhekeka kwepeyinti, ukuhlangana okanye ukubola okungaqhelekanga.
3. Indawo yokugcina kude nokukhanya
Kuphephe ukukhanya kwelanga ngqo: Imitha ye-ultraviolet iya kukhawulezisa ukuguga kwe-epoxy resin, nto leyo ebangela utshintsho kumbala wepeyinti okanye ukuwohloka kokusebenza kwayo. Ke ngoko, ipeyinti kufuneka igcinwe kwindawo yokugcina izinto epholileyo nengakhanyiyo.
Sebenzisa izikhongozeli ezimnyama: Ezinye iipeyinti ze-epoxy ze-A1 zipakishwe ngemibala emnyama ukunciphisa ukuvaleka kwe-photosensitivity. Iphakheji yokuqala kufuneka igcinwe injalo ngexesha lokugcina.
4. Kuphephe ukuma ixesha elide
Jikelezisa rhoqo: Ukuba ipeyinti igcinwa ixesha elide (ngaphezulu kweenyanga ezi-6), ibhakethi yepeyinti kufuneka ijikwe okanye iqengqwe rhoqo ukuthintela ukuba umbala kunye ne-resin zingahlali kwaye zingabi nazintlu.
Umgaqo wokuqala xa uphuma: Sebenzisa ngokulandelelana komhla wokuvelisa ukuze uphephe ukungasebenzi kakuhle kwepeyinti ngenxa yokuphelelwa lixesha.
5. Ziphephe iikhemikhali ezingcolisayo
Gcina ngokwahlukileyo: Ipeyinti mayigcinwe kude neekhemikhali ezifana nee-asidi, ii-alkali, kunye nezinyibilikisi zendalo ukuze kuthintelwe iimpembelelo zeekhemikhali ezibangela ukonakala.
Umoya olungileyo: Indawo yokugcina kufuneka ifakelwe umoya ukuze kuthintelwe ukuqokelelwa kwezinto ezitshintshayo ezichaphazela umgangatho wepeyinti.
Ezi zilandelayo ziifoto zokupakisha ze-SML Pipe kunye nezixhobo kwindawo yokugcina impahla ye-DINSEN:
2. Uhlalutyo lwezizathu zokukhanya okanye ukutshintsha kombala wepayipi yesinyithi
Ukuba ipeyinti ye-epoxy ye-A1 ayigcinwanga kakuhle, umbhobho wesinyithi emva kokupeyintwa unokuba neengxaki ezifana nokukhanya, ukuba tyheli, ukuba mhlophe, okanye ukutshintsha kombala kancinci. Izizathu eziphambili ziquka:
1. Ubushushu obuphezulu bubangela ukuguga kwe-resin
Isiganeko: Umbala wepeyinti ujika ube mthubi okanye ube mnyama emva kokupeyinta.
Isizathu: Phantsi kobushushu obuphezulu, i-epoxy resin inokubangela i-oxidize okanye i-cross-link, nto leyo ebangela ukuba umbala wepeyinti utshintshe. Emva kokupeyinta, ipeyinti ephezu kombhobho wesinyithi esityhidiweyo ingalahlekelwa ngumbala wayo wokuqala ngenxa yokuguga kwe-resin.
2. Ukungena komswakama kukhokelela ekuphelisweni okungaqhelekanga
Isiganeko: Inkungu emhlophe, ukuba mhlophe okanye umbala ongalinganiyo ubonakala kumphezulu wengubo.
Isizathu: Ibhereli yepeyinti ayivalwanga kakuhle ngexesha lokugcina. Emva kokuba umswakama ungene, isabela kunye nesixhobo sokupholisa ukuvelisa iityuwa ze-amine okanye i-carbon dioxide, nto leyo ebangela iziphene zenkungu kumphezulu wengubo, nto leyo echaphazela ukukhazimla kwesinyithi kombhobho wesinyithi.
3. Ukubola kwefoto okubangelwa yimitha ye-ultraviolet
Isiganeko: Umbala wepeyinti uba lula okanye umahluko wombala uvele.
Isizathu: Imitha ye-ultraviolet elangeni iya kutshabalalisa i-pigment kunye nesakhiwo se-resin kwipeyinti, nto leyo ebangela ukuba umbala womphezulu wombhobho wesinyithi emva kokupeyinta uphele kancinci kancinci okanye utshintshe umbala.
4. Ukuguquguquka okanye ungcoliseko lwesinyibilikisi
Isiganeko: Iinxalenye, imingxunya yokuncipha okanye ukutshintsha kombala kuvela kwifilimu yepeyinti.
Isizathu: Ukuguquguquka kakhulu kwe-solvent kwenza i-viscosity yepeyinti ibe phezulu kakhulu, kwaye i-atomization engalunganga ngexesha lokutshiza ikhokelela kumbala ongalinganiyo.
Ukungcola (njengothuli kunye neoyile) okuxutywe ngexesha lokugcina kuya kuchaphazela iimpawu zokwenza ifilimu zepeyinti kwaye kubangele iziphene kumphezulu wombhobho wesinyithi.
3. Indlela yokuphepha umbala ongaqhelekanga wombhobho wesinyithi emva kokupeyinta
Landela ngokungqongqo iimeko zokugcina kwaye uqinisekise iimfuno zobushushu, ukufuma, ukhuseleko lokukhanya, njl.Ukugcinwa okungafanelekanga kombhobho wesinyithi ofakwe ipeyinti ye-A1 epoxy kunokubangela ukuba umbala ube mhlophe, ube tyheli okanye utshintshe umbala. Ngokulawula ngokungqongqo ubushushu, ukufuma, ukhuseleko lokukhanya kunye nezinye iimeko, kunye nokujonga rhoqo imeko ye-pt, iziphene zokugquma ezibangelwa ziingxaki zokugcina zinokuphetshwa ngempumelelo, ukuqinisekisa ukuba ubuhle kunye nokusebenza kokukhusela kombhobho wesinyithi ofakwe kwi-cast zikwimeko entle.
Ixesha leposi: Epreli-29-2025
