Indlela yokudibanisa umbhobho womlilo: intambo, umngxuma, iflange, njl. Umbhobho wentsimbi ehlanganisiweyo yangaphakathi neyangaphandle ye-epoxy yokukhusela umlilo yi-epoxy resin powder eguqulweyo enzima yokulwa nokugqwala, enokumelana okuhle kakhulu nokugqwala kweekhemikhali. Ngokusisiseko isombulula iingxaki ezininzi ezifana nokugqwala komphezulu kunye nokulinganiswa kodonga lwangaphakathi lweemveliso ezifanayo emva kokusetyenziswa ixesha elide, ukuze kuthintelwe ukuvaleka kwangaphakathi okuchaphazela ukusetyenziswa, ukuze kuphuculwe kakhulu ubomi benkonzo yeepayipi ezikhethekileyo zokulwa nomlilo. Ngenxa yokongezwa kwezinto ezithintela umlilo kwizinto zokugquma, ukumelana nobushushu bemveliso kuphucukile xa kuthelekiswa nezinye iimveliso ezifanayo. Ke ngoko, akuyi kuchaphazela ukusetyenziswa xa ubushushu obungqongileyo bunyuka ngokukhawuleza. Ubomi benkonzo kunye nokusebenza kweepayipi zomlilo ezigqunywe ngaphakathi nangaphandle zingcono kakhulu kunezo zeepayipi ezigqunywe nge-galvanized. Umbala ubomvu.

Umzi-mveliso wethu ugxile ekuveliseni umbhobho womlilo, umbhobho wentsimbi egalelweyo, umbhobho wokugquma umgubo, umbhobho wokugquma umgubo kunye nombhobho wentsimbi oyi-intshi ezi-6. Ukusetyenziswa: unikezelo lwamanzi omlilo, unikezelo lwegesi kunye nenkqubo yombhobho wokuthutha we-foam medium. Umgangatho wemveliso udlula irhafu kwaye udlula iimvavanyo ezininzi ngaphambi kokuba uphume kumzi-mveliso. Thobela imigangatho yomgangatho yesizwe neyehlabathi.

(1) Iipropati eziphezulu zoomatshini. I-epoxy resin inobumbano oluqinileyo kunye nesakhiwo se-molecular esixineneyo, ngoko ke iipropati zayo zoomatshini ziphezulu kune-thermosetting resins eziqhelekileyo ezifana ne-phenolic resin kunye ne-unsaturated polyester.

(2) Ukwaleka kombhobho womlilo ogqunywe ngeplastiki kusebenzisa i-epoxy resin, enokunamathela okuqinileyo. Inkqubo yokulungisa i-epoxy resin iqulethe iqela le-epoxy, iqela le-hydroxyl, i-ether bond, i-amine bond, i-ester bond kunye namanye amaqela e-polar anomsebenzi omkhulu, nto leyo enika iimveliso ezicociweyo ze-epoxy ukunamathela okugqwesileyo kwisinyithi, iiseramikhi, iglasi, ikhonkrithi, umthi kunye nezinye izinto ezingaphantsi komhlaba.

(3) Ukuncipha okuncinci kokupholisa. Ngokubanzi yi-1% ~ 2%. Yenye yeentlobo ezinokuncipha okuncinci kokupholisa phakathi kweeresini ze-thermosetting (i-phenolic resin yi-8% ~ 10%; i-unsaturated polyester resin yi-4% ~ 6%; i-silicone resin yi-4% ~ 8%). I-linear expansion coefficient nayo incinci kakhulu, ngokubanzi yi-6 × 10-5/℃. Ke ngoko, ivolumu ayitshintshi kangako emva kokupholisa.

(4) Ubuchule bokusebenza kakuhle. I-epoxy resin ngokusisiseko ayivelisi i-volatiles ephantsi yeemolekyuli ngexesha lokunyanga, ngoko ke inokwenziwa phantsi koxinzelelo oluphantsi okanye uxinzelelo loqhagamshelwano. Ingasebenzisana neearhente ezahlukeneyo zokunyanga ukuvelisa iingubo ezinobuhlobo nokusingqongileyo ezifana nezambatho ezingenasombululo, eziqinileyo eziphezulu, eziluthuli kunye nezambatho ezisekelwe emanzini.

(5) Ubushushu obugqwesileyo bombane. I-Epoxy resin yi-thermosetting resin eneempawu ezilungileyo zokungashukumi.

(6) Uzinzo oluhle kunye nokumelana okuhle kweekhemikhali. I-epoxy resin engenazo i-alkali, ityuwa kunye nezinye izinto ezingcolileyo akulula ukuzonakalisa. Logama nje igcinwe kakuhle (ivaliwe, ingenamanzi kunye nobushushu obuphezulu), ixesha lokugcina liyiminyaka eli-1. Emva komhla wokuphelelwa, ukuba uvavanyo lufanelekile, lungasetyenziswa. I-epoxy curing compound inozinzo oluhle lweekhemikhali. Ukumelana kwayo nokugqwala kwi-alkali, i-asidi, ityuwa kunye nezinye izinto ezisetyenziswayo kungcono kunokumelana ne-polyester resin engagcwaliyo, i-phenolic resin kunye nezinye ii-thermosetting resin. Ke ngoko, i-epoxy resin isetyenziswa kakhulu njenge-anti-corrosion primer. Ngenxa yokuba i-epoxy resin ephilisweyo inesakhiwo senethiwekhi esinemilinganiselo emithathu kwaye inokumelana nokumiliswa kweoyile, isetyenziswa kakhulu kudonga olungaphakathi lweetanki zeoyile, iitanki zeoyile kunye neenqwelo-moya.

Umfanekiso 1 umbhobho womlilo

Umfanekiso 1 umbhobho womlilo (iziqwenga ezi-5)

(7) Ukumelana nobushushu kwe-epoxy curing compound ngokubanzi yi-80 ~ 100 ℃. Iindidi ze-epoxy resin ezimelana nobushushu zinokufikelela kwi-200 ℃ nangaphezulu.