Nibyo, urashobora gutsinda ifu ikote ikarishye ibyuma kugirango ukore 'duplex sisitemu ' itanga imbaraga zo kurwanya ruswa. Guteranya ibi byiciro bibiri bitandukanye birinda ibintu birangiza ubwiza bushobora kubaho ubuzima bubi bwinganda.
Nyamara, ubuso bushya ntibusanzwe bwiteguye kubumba ifu ivuye mu bwogero. Hatabayeho gutegurwa gukomeye kumubiri nubumashini, igikingirizo cyawe cyo gukingira byanze bikunze kizarwara kurengana, pinholing, hamwe no gusenya ibiza. Ntushobora gutera ifu hejuru ya zinc kandi utegereje ko izakomeza igihe kirekire.
Aka gatabo karasenya ishingiro ryubwubatsi inyuma yububiko bwa duplex hamwe nibisanzwe ugomba kwirinda. Tuzasesengura protocole ikomeye ya ASTM isabwa kugirango ikomere cyane. Tuzatanga kandi ibipimo ngenderwaho kugirango tugufashe kwerekana neza ibikoresho bisize ifu kumushinga wawe utaha wubatswe cyangwa ukora.
Ibyingenzi
Igwiza rya 2.5x: Gukomatanya ifu yometseho hamwe na galvanizing ishyushye itanga ingaruka zo guhuza imbaraga, ikongerera igihe cyicyuma kugeza inshuro 2,5 kurenza gutwikira wenyine.
Iterabwoba Rikabije: Ubushuhe hamwe na gaze byafashwe murwego rwa zinc bizaguka mugihe cyo gukiza ifu, bitera pinholes. Ibiteganijwe 'mbere yo guteka ' niyo yonyine yoroshya kugabanya.
Idirishya rya Oxidation: Zinc irakora cyane. Iyo bimaze gushyirwaho umwirondoro, ibice bya galvanis bigomba gutwikirwa mugihe kimwe cyakazi (nibyiza munsi yamasaha 12) kugirango wirinde okiside ya zinc itagaragara.
Kwubahiriza bisanzwe: Gusaba gutsinda bisaba kubahiriza byimazeyo amabwiriza ya ASTM D7803 na SSPC-SP 16.
1. Urubanza rwubucuruzi: Kuki gushora imari muri sisitemu ya Duplex?
Gusobanukirwa imikoranire hagati yifu ya powder na zinc ni ngombwa. Ukora imbaraga zo gukingira imbaraga iyo ubihuje. Ifu ya polyester cyangwa epoxy ikora nkinzitizi ikomeye yumubiri. Irwanya ubushuhe, imiti ikaze, hamwe no gukuramo umubiri. Niba igishushanyo cyimbitse kirenze iyi bariyeri, urwego rwa zinc ruri munsi. Itanga uburinzi bwa anodic, ikabora mbere kugirango ibyuma byambaye ubusa bitagira ingese.
Ubu buryo bubiri bugabanya cyane ubuzima bwikurikiranya. Ibiciro byambere byo gusaba birasanzwe kurenza uburyo bumwe bwo gutwikira. Ariko, kugabanuka gukabije kubikorwa bikomeza bituma duplex sisitemu ihenze cyane. Ibikorwa Remezo nubwubatsi byunguka cyane kubwigihe kirekire. Ntuzakenera guhagarika ibikorwa kugirango usige irangi ritunguranye cyangwa kugabanya ingese.
Kuramba nabyo bigira uruhare runini mubisobanuro bigezweho. Ifu yifu itanga hafi zeru Volatile Organic Compound (VOC) ibyuka bihumanya. Byongeye kandi, amafaranga arenze urugero arafatwa byoroshye kandi akongera gukoreshwa. Gukoresha ibikoresho bisize ifu birashobora gutanga umusanzu muburyo bwo gutanga inguzanyo ya LEED, cyane cyane kubidukikije murugo. Abategura baha agaciro cyane ibyo bikoresho byo kubaka imyuka mike.
Hanyuma, duplex sisitemu itanga ibintu byinshi cyane. Porogaramu umunzani mwiza muburyo butandukanye bwimishinga. Urashobora kubishyira mubikorwa binini byometseho ibyuma byubatswe. Urashobora kandi kubishyira mubikorwa bikomeza gutunganya ibyuma bya coil . Imirongo myinshi yimashini ikora yishingikiriza ibikoresho by'icyuma byerekana ibikoresho bigera mbere kandi byiteguye guhimbwa.
2. Ikibazo Cyibanze Cyubwubatsi: Kurenga no Kuzana Zinc
Gukoresha ifu hejuru yicyuma gishyushye cyerekana inzitizi zubwubatsi. Ikibazo kigaragara cyane ni ibintu birenze urugero. Mugihe cyo gusya, imifuka ya microscopique yubushuhe na gaze ihinduka umutego hejuru ya zinc. Nyuma, igice cyinjira mu ziko rikiza kugirango ushongeshe ifu. Iyi ziko ubusanzwe ikora hafi 180 ° C (356 ° F).
Mugihe icyuma gishyushye, imyuka yafashwe iraguka vuba. Bahatira gusohoka hanze banyuze muri polyester cyangwa epoxy layer. Uku guhunga gukabije kurema ibibyimba bigaragara, crater, na pinholes. Izi pinholes zangiza kurangiza ubwiza. Ikirushijeho kuba kibi, batanga imiyoboro itaziguye kugirango habeho inzitizi yo gukingira ifu.
Indi mbogamizi ikomeye irimo umutego wa zinc oxyde itagaragara. Zinc nicyuma gikora cyane. Itangira okiside ako kanya iyo ihuye na ogisijeni yo mu kirere. Abantu benshi bamenya 'ingese yera ' nkikimenyetso cya okiside ya zinc. Nyamara, microscopique zinc oxyde igaragara mbere yuko ingese yera igaragara. Iyi layer itagaragara ikora nka microscopique ivumbi ryumukungugu. Irasenya burundu ifu yometseho iyo itavuwe.
Impinduka zo gusaza ziragora ingamba zo gutegura. Uburyo bwawe bugomba guhinduka ukurikije imyaka nyayo yubuso bwa zinc. Icyuma gishyashya (munsi yamasaha 48) gisaba gukora bitandukanye cyane na zinc ikirere (cyerekanwe kumwaka umwe). Zinc nshya ikenera hejuru yubushakashatsi. Ikirere cyizuba gisaba isuku yimiti kugirango ikureho hydroxide yinangiye na karubone mbere yuko utangira gushushanya.
3. ASTM D7803 Ibipimo byo kwitegura kugabanya ingaruka
Kugirango wirinde gusibanganya na pinholing, ugomba gukurikiza intambwe zifatika zavuzwe muri ASTM D7803. Ibipimo ngenderwaho bitegura gutegura neza ibishishwa bishyushye byo gushiramo ifu.
Intambwe ya 1: Isuku ya Shimi na Solvent
Ugomba kubanza gukuraho ibintu byose byanduye, amavuta, namavuta. Ubusembwa bwumubiri nkibibyimba, biruka, nibitonyanga bya zinc nabyo bisaba gusya neza. Koresha alkaline idakomeye cyangwa acide acide yo gukaraba. Ntuzigere ukoresha imiti ikaze ya caustic. Kwiyambura ubukana bizashonga burundu kurinda zinc. Buri gihe kwoza hejuru neza n'amazi meza kandi urebe ko byumye mbere yo gukomeza.
Intambwe ya 2: Kwerekana Ubuso (SSPC-SP 16)
Ubuso bwa zinc butunganijwe neza ntibushobora gufata irangi ryifu. Ugomba gukora umwirondoro wa microscopique. Nyamara, ibintu bisanzwe biremereye byangiza byangiza ibyuma. Irashwanyaguza zinc iburyo bwicyuma.
Ahubwo, ibipimo bya SSPC-SP 16 bisaba tekinike yihariye 'Sweep Blasting '. Abakoresha bagomba gukoresha ibyuma bidafite ibyuma, ubukana buke (Mohs igipimo gikomeye ≤ 5). Ibirahure bimenetse cyangwa ibishishwa bya waln bikora neza. Nozzle iturika igomba kuguma kuri 30 ° kugeza kuri 60 °. Iki gikorwa cyo guhanagura witonze cyoroshye hejuru. Irema ingingo zikenewe zidakuyeho urwego rukomeye rwa zinc (Eta). Ibikoresho bimwe na bimwe bifashisha imiti ikoresheje zinc cyangwa ibyuma bya fosifate nkuburyo bwemewe bwo guturika.
Intambwe ya 3: Gutanga Ubushyuhe (Mbere yo Guteka)
Ngiyo intambwe yawe ikomeye yo gucunga ibyago kugirango wirinde gusohoka. Mbere yo gukoresha ifu iyo ari yo yose, ugomba kubanza guteka ibyuma byambaye ubusa. Ubushyuhe bw'itanura bugomba gushyirwaho 30 ° C (~ 50 ° F) hejuru yifu ya nyuma ikiza ubushyuhe. Ugomba gufata icyuma kuri ubu bushyuhe bwo hejuru byibuze isaha imwe.
Ubu bushyuhe bukabije butera ubuhehere hamwe na gaze kwaguka no guhunga mugihe ibyuma bikiri ubusa. Mugihe ushyizeho ifu nyirizina, imyenge ya microscopique iba irimo ubusa rwose. Ntibazaturika mugihe cyanyuma cyo gukiza.
Intambwe ya 4: Gusaba Byihuse (Igihe Idirishya)
Igihe ni umwanzi wawe ukomeye iyo ubuso bumaze kuba bwiza kandi bugaragara. Uhuye nigihe cyamadirishya kugirango ushyire anti-outgassing primer hamwe na topco yanyuma. Inganda zinganda zisaba gusaba mugihe cyamasaha 12 uhereye kumurongo. Byiza, ugomba kurangiza inzira yose muburyo bumwe bwo guhinduranya akazi. Gutinza porogaramu bituma zinc oxyde itagaragara ivugurura, izahita ibangamira adhesion yawe.
Imbonerahamwe Incamake: ASTM D7803 Imyiteguro
Intambwe |
Izina ryibikorwa |
Igikorwa cy'ingenzi |
Intego y'ibanze |
1 |
Isuku ryimiti |
Koresha alkaline nkeya / acide acide |
Kuraho amavuta, ibinyabuzima, hamwe nigitonyanga cya zinc. |
2 |
Guturika |
Koresha Mohs ≤ 5 abrasives kuri 30 ° -60 ° inguni |
Kora umwirondoro wa ankeri udatakaje zinc. |
3 |
Amashanyarazi |
Guteka kuri + 30 ° C hejuru yo gukiza temp kumasaha 1 |
Koresha ingufu zafashwe hanze kugirango wirinde pinholes. |
4 |
Gusaba Byihuse |
Koresha ifu mu masaha 12 |
Irinde okiside ya zinc itagaragara kwangiza adhesion. |
4. Galvanised vs Galvannealed Steel: Kugaragaza Substrate iburyo
Ibisobanuro bifatika bigira ingaruka nziza kubitsinda rya sisitemu ya duplex. Ugomba gusobanukirwa itandukaniro riri hagati yicyuma gishyushye-cyuma cyuma nicyuma. Ibisanzwe bishyushye-bitanga galvanizing bitanga umwihariko wa zinc hejuru. Bikunze kugaragaramo imiterere igaragara. Galvannealing yongeyeho annealing yinyongera (gushyushya) ako kanya nyuma yo kwiyuhagira zinc.
Ubu bushyuhe bwiyongera butera ibyuma biva mubyuma bikwirakwira hejuru muri zinc. Irema zinc-fer ikomeye. Ibi bihindura isura igaragara kuri matte imvi. Icy'ingenzi cyane, ihindura kuburyo bugaragara hejuru yubuso.
Ibyuma bya Galvannealed biranga ubusanzwe micro-rough. Ikora nka microscopique sponge. Irangi ryifu nifu bifatana byoroshye kuribi. Nkigisubizo, ibikoresho bya galvanneale akenshi bisaba guturika cyane ugereranije nibikoresho bisanzwe bishyushye. Ibyago byo gusiba bigabanuka cyane.
Abaguzi bagomba gusuzuma neza itandukaniro mugihe cyo gushakisha. Kugaragaza ibipimo Ibyuma bya Galvanised mubisanzwe bikundwa kubidukikije biremereye aho ubukana bwa zinc ntarengwa bukenewe. Ariko, niba urimo gukora ibikoresho bisobanutse neza cyangwa ibice byimodoka, vuga ibikoresho bya galvanne aho. Itanga irangi ryiza cyane kumurongo, kugabanya ibiciro byo gutegura imiti.
Imbonerahamwe yo Kugereranya Ibikoresho
Ikiranga |
Icyuma gisanzwe |
Ibyuma bya Galvannealed |
Ibigize |
Zinc yo hanze yuzuye (Eta layer) |
Zinc-fer alloy top layer |
Kugaragara |
Kurabagirana, akenshi biranga spangle igaragara |
Icyatsi kibisi, imyenda imwe |
Ifu |
Irasaba umwirondoro ukomeye wo guturika |
Mubisanzwe micro-rough; urwego rwo hejuru |
Ibyiza Kuri |
Ibikorwa remezo biremereye, ibice byigitambo bikenewe |
Imirongo yikora, ibicuruzwa byiza-byiza |
5. Isuzuma ryabacuruzi: Nigute ushobora gutondekanya abafatanyabikorwa
Gukoresha ifu hejuru ya zinc bisaba ibikoresho byihariye n'ubumenyi bwimbitse. Ifu rusange yifu yangiza ibice bya galvanis kuko ibifata nkibyuma byambaye ubusa. Ugomba gusuzuma neza abashobora kugurisha mbere yo gutanga amasezerano.
Baza ibi bibazo bikomeye QA mugihe cyo gusuzuma:
Bafite amashyiga yabanjirije guteka ashoboye kugera kubushyuhe bukenewe? Amaduka mato menshi abura ubushobozi bwitanura kugirango agere kuri 30 ° C hejuru yubushyuhe busanzwe bwo gukiza.
Ibikoresho bya galvanizing na poro bifatanyirijwe hamwe cyangwa bihujwe neza? Ikibazo. Niba umucuruzi agomba gutwara ikamyo yambaye ubusa muri leta yose, birashoboka ko bazabura idirishya rikomeye ryamasaha 12.
Bakoresha ibyemezo byemewe birwanya anti-outgassing primers? Abacuruzi bafite ubuziranenge bakoresha primers idasanzwe mugihe ibyuma bikiri bishyushye. Ibi bifunga imyenge mbere yuko ikoti ryanyuma ryamabara rikomeza.
Witondere amabendera atukura ako kanya. Niba umucuruzi avuga ko bashobora gutwikira ibyuma bishya bitarinze guhita, genda. Niba bavuga ko degrasing yumuriro nigiciro cyinyongera kidakenewe, shaka undi mukunzi. Inzira ngufi zihoraho ziganisha ku gukuramo ibishishwa.
Umwanzuro
Ifu yometse hejuru yicyuma ikora sisitemu ya duplex ikora neza, ariko ikomeza inzira itababarira cyane. Ntushobora kwirengagiza physics yo kwagura imyuka cyangwa chimie ya zinc reaction. Kwirinda hejuru yubutaka byanze bikunze bivamo kunanirwa kwiza no kurinda ruswa.
Fata ibikorwa bikurikira-bikurikira intambwe ikurikira kumishinga yawe iri imbere:
Funga ASTM D7803 na SSPC-SP 16 ibisabwa kugirango witegure neza mubyo usaba ibyifuzo (RFPs).
Saba ibyemezo byerekana amasaha 1 mbere yo guteka progaramu ya degassing uhereye kubasabye wahisemo.
Menya neza itumanaho risobanutse, mugihe nyacyo hagati ya hot-dip galvanizer nuwasabye ifu kugirango garanti yamasaha 12 yo gusaba yujujwe.
Menya neza ko ibisasu byose biturika bifashisha imiti igabanya ubukana bwa zinc.
Ibibazo
Ikibazo: Ese ifu yometseho ifu yangiza ingese?
Igisubizo: Irwanya cyane ingese. Ubusanzwe ingese ibaho gusa iyo igifuniko cyashizwe hejuru cyane kuri bariyeri ndetse na zinc. Birashobora kandi kubaho mugihe guhora uhura nubushyuhe bukabije burenze 250 ° C (480 ° F) bitera zinc iri munsi kunanirwa.
Ikibazo: Urashobora gushiramo ifu ikote hejuru yicyuma gishaje?
Igisubizo: Yego, ariko bisaba koza imiti iremereye cyane. Ugomba kuvanaho burundu hydroxide ya zinc na karubone (imvi ya patina) ukoresheje alkaline yihariye cyangwa aside aside mbere yuko icyuma gishobora gutondekwa neza kandi kigatekwa mbere.
Ikibazo: Bigenda bite iyo usibye inzira yo guteka?
Igisubizo: Imyuka yafashwe nubushuhe bizarekura bikabije mugihe cya nyuma cyo gukiza ifu. Ibi bivamo ibisubizo byuzuye, byangiritse byuzuye byuzuye pinholes. Izi pinholes zituma ubushuhe burenga kuri bariyeri yifu, ikanesha intego ya sisitemu ya duplex.
