Umbhobho wentsimbi yokuphosa i-epoxy resin iyafuneka ukufikelela kwiiyure ezingama-350 zovavanyo lwesitshizi setyuwa phantsi komgangatho we-EN877, ngakumbi.Umbhobho we-DS sml unokufikelela kwiiyure ezingama-1500 zesitshizi setyuwauvavanyo(ufumene isatifikethi saseHong Kong CASTCO ngo-2025). Kucetyiswa ukuba kusetyenziswe kwiindawo ezimanzi kunye nemvula, ngakumbi elwandle, i-epoxy resin coating kwikhaka langaphandle le-DS SML pipe inika ukhuseleko oluhle kumbhobho. Ngokunyuka kokusetyenziswa kweekhemikhali zekhaya ezifana ne-organic acids kunye ne-caustic soda, i-epoxy coating iyona nto ingumqobo kwizinto eziphazamisayo, ngelixa iphinda idale imibhobho egudileyo yokuthintela ukuvala ukungcola. Iipropathi ezichasene ne-corrosion ye-cast iron pipes zenza ukuba zisetyenziswe ngokubanzi kwiibhubhoratri, izibhedlele, iifektri kunye neendawo zokuhlala emhlabeni jikelele.
Nangona kunjalo, ukuba ipeyinti ayigcinwanga ngokufanelekileyo, inokubangela ukuba umbhobho wentsimbi ube lula okanye uguqulwe emva kokupeyinta, okuchaphazela umgangatho wokubonakala kunye nokusebenza kokukhusela kwemveliso.
1. Indlela echanekileyo yokugcina yepeyinti ye-epoxy ye-A1
Ipeyinti ye-epoxy ye-A1 yinto ephezulu yokukhusela, kwaye iimeko zokugcina zayo zichaphazela ngokuthe ngqo ukuzinza kwengubo kunye nomphumo wokugubungela. Indlela yogcino echanekileyo ibandakanya le miba ilandelayo:
1. Ukulawula ubushushu
Ubushushu obufanelekileyo: Ipeyinti ye-A1 epoxy kufuneka igcinwe kwindawo eyi-5℃~30℃ ukunqanda ubushushu obuphezulu okanye obuphantsi obuchaphazela uzinzo lwekhemikhali yepeyinti.
Kuphephe ubushushu obugqithisileyo:Ubushushu obuphezulu (>35 ℃) buya kubangela ukuba isinyibilikisi kwipeyinti siphume ngumphunga ngokukhawuleza kakhulu, kwaye icandelo leresin linokuthi lingene kwi-polymerization reaction, eya kwandisa i-viscosity yepeyinti okanye ibangele ukusilela kokuphilisa.
Ubushushu obuphantsi (<0℃) bunokubangela ukuba amalungu athile kwipeyinti akhazimle okanye ahlukane, okukhokelela ekunciphiseni ukuncamathelisa okanye umbala ongalinganiyo emva kokupeyintwa.
2. Ulawulo lokufuma
Indawo eyomileyo: Ukufuma okunxulumene nendawo yokugcina kufuneka kulawulwe phakathi kwe-50% kunye ne-70% ukuthintela umoya ofumileyo ukuba ungangeni kwi-emele yepeyinti.
Ukutywinwa kunye nobungqina bokufuma: Ibhakethi yepeyinti kufuneka ivalwe ngokungqongqo ukukhusela ukufuma ekungeneni, kungenjalo kunokubangela ukuguqulwa kwepeyinti, ukuxutywa okanye ukunyangwa okungaqhelekanga.
3. Ukugcinwa kude nokukhanya
Gwema ukukhanya kwelanga ngokuthe ngqo: Imitha ye-Ultraviolet iya kukhawulezisa ukuguga kwe-epoxy resin, ebangela utshintsho lombala wepeyinti okanye ukuthotywa kokusebenza. Ngoko ke, ipeyinti kufuneka igcinwe kwindawo epholileyo, yokugcina ukukhanya.
Sebenzisa izikhongozeli ezimnyama: Ezinye iipeyinti ze-epoxy ze-A1 zipakishwe ngemibala emnyama ukunciphisa i-photosensitivity. Ipakethe yokuqala kufuneka igcinwe ilungile ngexesha lokugcinwa.
4. Kuphephe ukuma ixesha elide
Yijike rhoqo: Ukuba ipeyinti igcinwe ixesha elide (ngaphezu kweenyanga ezi-6), ibhakethi yepeyinti kufuneka iguqulwe okanye ijikelezwe rhoqo ukukhusela i-pigment kunye ne-resin ekuzinzeni nasekuhluzeni.
Umgaqo-nkqubo wokuqala wokuqala: Sebenzisa ngokulandelelana komhla wokuvelisa ukuphepha ukungaphumeleli kwepeyinti ngenxa yokuphelelwa yisikhathi.
5. Hlala kude nongcoliseko lwekhemikhali
Gcina ngokwahlukileyo: Ipeyinti kufuneka igcinwe kude neekhemikhali ezinjengeeasidi, ialkali, kunye nezinyibilikisi eziphilayo ukuphepha ukusabela kweekhemikhali ezibangela ukuwohloka.
Ukungena komoya okulungileyo: Indawo yokugcina kufuneka ifakwe umoya ukuze kuthintelwe ukuqokelelana kwezinto eziguquguqukayo ezichaphazela umgangatho wepeyinti.
Oku kulandelayo ziifoto zokupakishwa zoMbhobho we-SML & nofakelo kwindawo yokugcina impahla ye-DINSEN:
2. Uhlalutyo lwezizathu zokukhanya kombala wombhobho wentsimbi okanye ukuguquka kombala
Ukuba ipeyinti ye-epoxy ye-A1 ayigcinwanga kakuhle, umbhobho wentsimbi emva kokupeyinta unokuba neengxaki ezinjengokukhanya, ukutyheli, ubumhlophe, okanye ukuguquka kombala. Ezona zizathu ziphambili ziquka:
1. Ukushisa okuphezulu kubangela ukuguga kwe-resin
I-Phenomenon: Umbala wepeyinti ujika ube tyheli okanye ube mnyama emva kokupeyinta.
Isizathu: Ngaphantsi kwemekobume yobushushu obuphezulu, i-epoxy resin inokukhupha okanye idibanise ikhonkco, ibangele ukuba umbala wepeyinti utshintshe. Emva kokupeyinta, ipeyinti ephezu kombhobho wentsimbi ephosiweyo inokulahlekelwa ngumbala wayo wokuqala ngenxa yokuguga kwe-resin.
2. Ukungena kokufuma kukhokelela ekunyangeni okungaqhelekanga
Phenomenon: Inkungu emhlophe, mhlophe okanye umbala ongalinganiyo ubonakala kumphezulu wengubo.
Isizathu: Umgqomo wepeyinti awuvalwanga ngokuqinileyo ngexesha lokugcinwa. Emva kokuba ukufuma kungena, isabela kunye ne-ejenti yokunyanga ukuvelisa iityuwa ze-amine okanye i-carbon dioxide, ekhokelela kwiziphene zenkungu kumphezulu wengubo, echaphazela i-metallic luster ye-cast iron pipe.
3. Ukutshatyalaliswa kweefoto ezibangelwa yimisebe ye-ultraviolet
I-Phenomenon: Umbala wepeyinti uba khaphukhaphu okanye umahluko wombala wenzeka.
Isizathu: Imitha ye-ultraviolet elangeni iya kutshabalalisa i-pigment kunye nesakhiwo se-resin kwipeyinti, ibangele umbala womphezulu wombhobho wentsimbi emva kokupeyintwa ukuba uphele kancinci okanye ujike.
4. Ukuguquguquka kwesinyibilikisi okanye ukungcoliseka
I-Phenomenon: Amasuntswana, imingxuma eshwabeneyo okanye ukuguquka kombala kuvela kwifilimu yepeyinti.
Isizathu: Ukuqina kwe-solvent egqithisileyo kwenza i-viscosity yepeyinti ibe phezulu kakhulu, kwaye i-atomization engalunganga ngexesha lokutshiza ikhokelela kumbala ongalinganiyo.
Ukungcola (okufana nothuli kunye neoli) okuxutywe ngexesha lokugcinwa kuya kuchaphazela iipropati zokwenza ifilimu yepeyinti kwaye kubangele iziphene phezu kombhobho wensimbi.
3. Indlela yokuphepha umbala ongaqhelekanga wombhobho wentsimbi emva kokupeyinta
Landela ngokungqongqo iimeko zokugcina kwaye uqinisekise iimfuno zeqondo lokushisa, umswakama, ukhuseleko lokukhanya, njl.Ukugcinwa ngokungafanelekanga kombhobho wentsimbi enepeyinti ye-epoxy eyi-A1 kunokubangela ukuba umbala ube khaphukhaphu, ube tyheli okanye ube mnyama. Ngokulawula ngokungqongqo ubushushu, umswakama, ukukhuselwa kokukhanya kunye nezinye iimeko, kunye nokujonga rhoqo isimo se-pt, iziphene zokugquma ezibangelwa iingxaki zokugcina zinokuphetshwa ngokufanelekileyo, ukuqinisekisa ukuba i-aesthetics kunye nokusebenza kokukhusela umbhobho wensimbi owenziweyo ukwimeko engcono kakhulu.
Ixesha lokuposa: Apr-29-2025
