Ubuchwepheshe Bokugquma Kwamathangi Nge-Fusion Bonded Epoxy Fbe Oketshezini Oludinga Kakhulu
Kwadalwa ngo 09.02
Ubuchwepheshe Bokugcoba Kwamathangi e-Fusion Bonded Epoxy Fbe Oketshezini Oludinga Kakhulu
I-fusion bonded epoxy iyi-powder coating efakwa nge-electrostatic endaweni yensimbi elungisiwe bese yomiswa cishe ku-200 kuya ku-230 °C, yakhe ifilimu engu-180 kuya ku-280 µm ebambelela esisekelweni esikhundleni sokuhlala phezu kwaso. Ifilimu eqinisiwe idlula ukuhlolwa kwe-salt spray ngaphezu kwamahora angu-4000 futhi ifaneleka ku-AWWA C550, ibamba uhla olubanzi lwe-pH okuhlanganisa i-acid ne-alkali ezishintshanayo, futhi ihlolwa nge-holiday detection kanye nokuhlolwa kokunamathela kwe-pull-off ngaphambi kokuba ithangi ligcwaliswe. Iwukuphela kokukhetha lapho uketshezi olunzima lungahlasela ingaphakathi elipendiwe, kodwa indawo ye-fused glass enamel ku-820 kuya ku-930 °C iseyimpendulo yokunakekela okuphansi kakhulu lapho ukuhlanzeka kubusa.
Izinto ezidinga uketshezi zidinga kakhulu ekuqaleni kokunamathela. I-condensate ye-refinery overhead, umgudu wenqubo yezemithi, umfula wamakhemikhali one-pH eshintshayo, noma i-loop ye-caustic eshisayo kuzothola indawo ebuthakathaka kakhulu ku-coating yezinto eziphilayo phakathi neminyaka embalwa, futhi ukulungisa kusho ukukhipha umkhumbi emsebenzini ukuze uqhumise futhi uphinde upende ngaphakathi. I-Fusion bonded epoxy yasungulwa ukuze yenze lokho kulungisa kungadingeki ekuqaleni. Lapho onjiniyela behlola ubuchwepheshe be-fusion bonded epoxy FBE tank coating ezintweni ezidinga uketshezi, imibuzo efanele imayelana nokulungiselelwa kwendawo, ukwakhiwa kwefilimu, ukulawulwa kokuvuthwa nokuhlolwa, ngoba lezo zinto ezine zinquma ukuthi i-coating iyasinda noma ibukeka kahle nje ngosuku lokuthunyelwa. Isicaciso esihlolwayo ubuchwepheshe be-fusion bonded epoxy FBE tanks coating ezintweni ezidinga uketshezi, futhi izinto ezine ezingenhla yizo kuphela ezinquma impilo yesevisi.
Indlela okugcotshwa ngayo
Iphawuda, ukushaja kagesi, ukuvuthwa ngokushisa, ifilimu eqhubekayo. I-epoxy powder ishajwa ngogesi bese ifafazwa phezu kwensimbi esihlanjululwe futhi yalungiselelwa ngomshini ukufinyelela isimo esithile. Iphaneli ibe isingena esithandweni sokuvutha cishe ku-200 kuya ku-230 °C, lapho iphawuda incibilika khona, igeleze futhi ixhumane ibe ifilimu eyodwa eqhubekayo. Leyo ngqubo iwumehluko wonke kusukela ekubeni umbozwe ngopende, obusetshenziswa njengoketshezi ezingeni lokushisa kwendawo bese woma ngokukhululwa kwe-solvent noma nge-oxidation. Akukho solvent okufanele ibanjwe, akukho filimu ye-primer elindele ukuphazanyiswa, futhi akukho mkhawulo omanzi ongachithwa yimvula noma impelasonto.
Ukwakheka kwefilimu kuphaneli lethangi ngokuvamile kuba ngu-180 kuya ku-280 µm. Chaza ubuncane ngephaneli ngayinye futhi ufune ukuthi ukujiya kuqoshwe, ngoba ifilimu engaphansi kwebanga phezu kwendawo engalungiswanga kahle yilapho kuvela khona iholide lokuqala. Izinhlobo ezimbili ze-powder zivamile kulolu hlobo lomsebenzi, i-AkzoNobel Resicoat R4-ES kanye ne-INTERPON D2015, futhi ukucaciswa kwe-powder kufanele kube semthethweni wokuthenga kunokuba kushiyelwe endaweni yokusebenzela.
Kungani ukuhlanganiswa kubalulekile endleleni yokwehluleka
Ifilimu ephilayo iyahluleka endaweni yokuhlangana; ifilimu ehlanganisiwe ayihluleki. I-lining ependwe noma efakwe ngoketshezi ihluleka ngokugqwala ngaphansi kwefilimu, okuqala emgodini omncane noma emhuzukweni bese kusakazeka ngaphansi kwesembozo kuze kukhulule ngezingqimba. Ngenxa yokuthi i-FBE ixhumanisa ibe ifilimu eqhubekayo ebambelela esimweni sensimbi esilungisiwe, akukho ndlela eqhubekayo yokuthi i-electrolyte ihambe ngaphansi kwesembozo, futhi ukunamathela okukalwa ngokuhlolwa kokudonsa kusezingeni lama-megapascal ambalwa. Uphawu lokuhluleka luhlukile: i-holiday yendawo kune-delamination ebanzi. Lokho kushintsha kwendlela yokuhluleka yingakho uhlelo lokuhlola lugxile ekutholweni kwama-holiday kunokuba kugxile eziqeshini zokunamathela.
I-coating inemikhawulo. Iyi-organic polymer, ngakho izinga lokushisa eliphezulu eliqhubekayo linciphisa ithuba kakhulu kunalokho okwenziwa yi-chemistry, yingakho izinga lokushisa eliphezulu lokusebenza kufanele libe sesicacisweni kanye nebanga le-pH. Futhi ayifaneleki kahle njengendawo yangaphandle eveziwe ngaphandle kwe-topcoat, ngakho emanzini angaphandle uhlelo lukhethwa ngokucabangela lokho, kuyilapho ifilimu yangaphakathi iyona eyenza umsebenzi wamakhemikhali.
Incazelo Yezobuchwepheshe
Ipharamitha | Inani Elijwayelekile / Ibanga | Qaphela |
Uhlobo lokugcoba | i-fusion bonded epoxy powder | I-electrostatic spray kanye nokwelapha ngokushisa |
Izinga lokushisa lokwelapha | ~200–230 °C | I-powder iyancibilika, igeleze futhi ixhumane |
Ukujiya kwefilimu | 180–280 µm | Okuncane okucacisiwe ngepaneli ngayinye |
Ukumelana ne-salt spray | ngaphezu kuka-4000 h | Indinganiso yokuqina |
Inkomba ejwayelekile | AWWA C550 | Ukufaneleka kohlelo lokumboza |
Amazinga e-powder | Resicoat R4-ES / INTERPON D2015 | Amasistimu e-epoxy powder |
Ukunamathela | pull-off ebangeni le-MPa | Kubambelele ku-profile elungisiwe |
Ukubekezelelwa kwe-pH | ububanzi obukhulu be-asidi ne-alkali | Imifudlana yezinqubo eshintshanayo |
Ukulungiselela indawo | insimbi ehlanziwe futhi ebunjiwe | Kunquma i-anchor yefilimu |
Ukuhlola | ukutholwa kwe-holiday kanye nokuhlolwa kokunamathela | Ngaphambi kokuthunyelwa nangemva kokulungiswa |
Ukuhlola nokulungisa
Ukuhlolwa kwesigaba sasefekthri kuhlanganisa ukulungiselelwa kwendawo, ukujiya kwefilimu kuyo yonke iphaneli, ukutholwa kwamaholide ukuthola izimbobo, ukuhlolwa kokunamathela kokudonsa, kanye nokudlula kokugoba noma komthelela njengoba incazelo idinga. Ukulungisa yindawo ebuthakathaka kunoma yiluphi uhlelo lwe-FBE, ngakho-ke inqubo yokulungisa, impahla yokuxhuma kanye nesimo sokwelapha kufanele kube emdwebeni kanye nezinombolo zamaphaneli ezisebenza kuzo, futhi konke ukulungiswa kuphinde kuhlolwe amaholide ngaphambi kokuba iphaneli ipakishwe.
Esizeni, ukuhlolwa kusebenza ngendlela efanayo kodwa ngezinga elihlukile: izindawo zensimu ezigcotshwe kabusha zihlolwa ngesikhathi sokuvalwa, ukujiya kuqinisekiswa ngemva kokuhlanganiswa, kanti ukuhamba ngeso kubakhona ngaphambi kokuba ithangi lithathe uketshezi lwenqubo. Ezinhlelweni eziboshwe ngamabhawudi, ukugcotshwa akumele kume ebusweni beflange, ngoba i-gasket ivala i-flange hhayi ukugcotshwa, futhi ubuso bangaphakathi kufanele buqhubeke buze emseleni we-gasket ngaphandle kokushiya umphetho wensimbi ovezile ekusikeni. Leyo ncazelo yiyona okufanele ihlolwe ukubuyekezwa kukho konke ukungena kwama-nozzle.
I-FBE uma iqhathaniswa ne-enamel oketshezi oludinga kakhulu
Kukhipha kokubili umjikelezo wangaphakathi wokumboza kabusha, futhi ukukhetha kumayelana nendlela yokusebenza. I-FBE iyifilimu ye-polymer engu-180 kuya ku-280 µm eqinile, ebanzi ngamakhemikhali futhi yelashwa endaweni evumelana nezimo eziyinkimbinkimbi; iyimpendulo esebenzayo lapho ama-spools, izingcezu ze-manifold, noma i-geometry engajwayelekile idinga ukuvikelwa okufanayo. I-Glass-fused-to-steel ingilazi ehlanganiswe kuphela lensimbi ku-820 kuya ku-930 °C, enengqimba ye-enamel engu-0.25 kuya ku-0.45 mm elinganiswa ngaphezu kuka-3,450 N/cm², ihlolwe nge-spark ku-1500 V DC iphaneli ngayinye, futhi ubukhulu bendawo obungaphansi kuka-Ra 0.8 µm. I-GFS iyawina lapho ingaphakathi kufanele lihlale lilula ukuwashelwa emashumini eminyaka, lapho izinga lokushisa lomfula liphezulu, noma lapho umnikazi efuna umthwalo wokuhlola ophansi kakhulu. I-FBE iyawina ngokuvumelana nezimo zokuma kanye nephrojekthi esivele isebenzisa umugqa we-epoxy.
Lapho uketshezi luwukudla noma lokuphuza noma lapho iphrojekthi iseYurophu, iphakethe lokumboza kufanele futhi liphathe isitifiketi esicelwa incazelo, yingakho i-NSF/ANSI 61 noma i-WRAS, i-CE kuya ku-EN 1090 kanye ne-ISO 28765, kanye nohlelo lwekhwalithi ngaphansi kwe-ISO 9001 kufanele kube engxoxweni efanayo nokujiya kwefilimu.
Ikhasi Lesimo Sephrojekthi
Iphrojekthi | Indawo | Umkhiqizo | Umthamo | Ububanzi |
Ipulazi lamathangi e-epoxy elihlanganisiwe lezokwelapha | Hebei, China | Ithangi lensimbi eligcotshwe nge-FBE epoxy | 32,363 m³ | ukuhlinzeka + ukugada, uhlelo lokugcoba nge-epoxy |
Amathangi e-epoxy e-coated ngamakhemikhali, amayunithi angu-11 | Guangxi, China | Ithangi lensimbi le-FBE epoxy coated | 4,771 m³ | ukuhlinzeka + ukugadwa, indawo enamathangi amaningi |
Uhlelo lwamathangi e-effluent kamasipala, amayunithi angu-10 | Sichuan, China | Ithangi le-GFS | 17,420 m³ | ukuhlinzeka, isigaba sesevisi yoketshezi oluseduze |
Amandla Obunjiniyela Be-Center Enamel
I-Center Enamel (Shijiazhuang Zhengzhong Technology Co., Ltd) isikhathi eside kusukela ngo-2008 yakha futhi yaklama amathangi okugcina axhunywe ngezibophezelo. Njengomkhiqizi wokuqala wamathangi e-glass-fused-to-steel (GFS) eChina, inkampani inamalungelo obunikazi acishe abe ngu-200 ahlobene ne-enamel, ikhiqiza cishe amapuleti ensimbi ehlanganiswe ne-enamel angu-300,000 ngonyaka, isiqedile imisebenzi efakiwe engaphezu kuka-30,000 futhi ihlinzeka ngamathangi ayo emazweni angaphezu kwe-100. Isizinda esisha sokukhiqiza esingu-150,000 m² sengezwe ukuze kunyuswe amandla okukhiqiza, futhi amathangi angawodwa ahlinzekwa afinyelela ku-60,000 m³. Ukukhiqiza kuqhutshwa ngaphansi kwe-ISO 9001 ne-ISO 45001, ngesitifiketi somkhiqizo esihlanganisa i-NSF/ANSI 61, WRAS, FDA, LFGB, CE (EN 1090), ISO 28765, FM, BSCI ne-EUROCODE, futhi idizayini ibhekisela ku-AWWA D103-09, AWWA C550 ne-NFPA lapho uhlelo ludinga khona.
Oketshezi olunzima lokhu kuhlanganisa ukusetshenziswa kwe-epoxy ehlanganiswe nokushisa kusuka ku-180 kuya ku-280 µm ngokwe-AWWA C550, irekhodi lokuhlolwa kwe-holiday nokunamathela, inqubo yokulungisa yasendle, kanye nokuxhumana kwe-coating ne-gasket groove kuwo wonke ama-flange kanye nokungena kwe-nozzle.
Imibuzo Evame Ukubuzwa
Umbuzo 1: Uyini umehluko phakathi kwe-FBE kanye ne-painted tank lining?
Impendulo 1: Upende uwuketshezi olusetshenziswa ezingeni lokushisa lendawo futhi lome; i-FBE iyi-powder ye-electrostatic ephekwa cishe ku-200 kuya ku-230 °C encibilika ibe ifilimu eqhubekayo ebambelele. Akunasolvent, akunamkhawulo wokumanzi, akunandlela yokugqwala ngaphansi kwefilimu.
Umbuzo 2: Yiluphi ubukhulu befilimu okufanele kushiwo isicaciso?
A2: 180 kuya ku-280 µm, okubalwa kukho ubuncane obushiwo ngephaneli ngayinye kanye nokujiya okurekhodiwe embikweni wokuhlola esikhundleni sokugomela emdwebeni.
Q3: Ingabe i-FBE lining ihlala isikhathi esingakanani?
A3: Ifanelekile ku-AWWA C550 nge-salt spray engaphezu kwamahora angu-4000, futhi ithangi licaciswa iminyaka engu-30 noma ngaphezulu yokusebenza komoya, inqobo nje uma ukuhlolwa kwe-holiday nokunamathela kwenziwa futhi ukulungiswa kwensimu kwenziwa ngenqubo ebhaliwe.
Q4: Ingabe i-FBE ingasetshenziselwa amanzi aphuzwayo?
A4: Yebo, ngesitifiketi sokuxhumana namanzi okuphuza esidingwa iphrojekthi, ngokuvamile i-NSF/ANSI 61 noma i-WRAS, kanye nezimemezelo zempahla zensimbi ne-gasket.
Q5: Kunini lapho i-glass-fused-to-steel ingcono kune-FBE?
A5: Lapho indawo yangaphakathi kufanele ihlale izihlanza yona ngokwayo emashumini eminyaka, lapho uketshezi lushisa kakhulu noma lunolaka kakhulu, noma lapho umnikazi efuna umthwalo omncane wokuhlola. I-FBE ifaneleka kahle izimo eziyinkimbinkimbi nama-spool.
Q6: Ikani libhekwa kanjani endaweni?
A6: Ukutholwa kwe-holiday kuzo zonke izindawo ezilungisiwe zasendle, ukuqinisekiswa kobukhulu befilimu ngemva kokuhlanganiswa, ukuhamba ngokubona ngaphambi kokugcwalisa, kanye nokuhlolwa kokuxhumana kwesigodi se-gasket kuwo wonke ama-flange nama-nozzle.
Q7: Iyiphi inkinga evamile yokwehluleka kokulungisa?
A7: Ukulungisa okusetshenziswa ngaphandle kokulungiselelwa kwendawo okucacisiwe noma isimo sokwelapha, yingakho into yokuxhuma, inqubo kanye nokuhlolwa kabusha konke kubalwe encazelweni.
I-Fusion bonded epoxy coating technology yezinto eziwuketshezi ezidinga kakhulu imayelana nendlela yokusebenza hhayi ukubukeka. I-powder efakwa nge-electrostatic, ivuthwe ku-200 kuya ku-230 °C futhi yakhiwe yaba ngu-180 kuya ku-280 µm, ibambelela ensimbi elungisiwe futhi isusa indlela yokugqwala engaphansi kwefilimu evimbela upende we-organic. Ifaneleka ku-AWWA C550 nge-salt spray engaphezu kwamahora angu-4000 futhi ifakazelwa i-holiday detection kanye ne-pull-off adhesion, ibamba uhla olubanzi lwe-pH ngokusebenza okushintshanayo kwe-asidi ne-alkali. Lapho uketshezi ludinga ingaphakathi elizihlanza lodwa iminyaka engamashumi amathathu, i-fused enamel panel evuthwe ku-820 kuya ku-930 °C futhi ihlolwe nge-spark ku-1500 V iyimpendulo eqinile, futhi lezi zimbili kulula ukuziqhathanisa uma izinga lokushisa lokusebenza kanye ne-chemistry sekusetafuleni. Thumela lezo ku-engineering desk ukuze uthole isincomo kanye nephakethe lamadokhumenti.
Khuluma Nonjiniyela
Thumela idatha ye-fluid yokubuyekezwa kwe-coating: i-fluid egciniwe kanye nebanga layo le-pH, izinga lokushisa eliphezulu lokusebenza, ukugxila kanye nanoma yimaphi ama-batch ashintshanayo, okuphuzwayo noma okungaphuzwayo nge-certification edingekayo, ububanzi be-tank kanye nomthamo, ukuthi ama-spools noma izimo ezingajwayelekile zidinga i-coating, kanye nezinga lokuklama iphrojekthi. Sizobuyisela isincomo sohlelo lwe-coating ngobukhulu be-film kanye nezinga le-powder, uhlelo lokulungiselela indawo nokuhlola, inqubo yokulungisa endaweni, imininingwane ye-flange ne-nozzle interface, kanye nephakethe eliphelele ledokhumenti yethenda. Ukubuyekezwa kobunjiniyela kuqala, akunasibopho.
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