Ba rwiyemezamirimo bakunze kubona zinc zishushanyije nkurusimbi runini. Uhora wumva inkuru zinganda zijyanye no gukuramo ibiza no gutsindwa kwa adhesion bibaho mumezi arangije umushinga. Gushidikanya birumvikana rwose. Ariko, ukuri kurasobanutse: yego, urashobora gusiga irangi neza. Mubikorwa byubucuruzi ninganda, abanyamwuga bita iyi nzira 'Sisitemu ya Duplex. '
Igiti ni kinini. Iyo ubikoze neza, irangi hamwe na galvanizing kora uburyo bwo kwirwanaho bukomeye. Iyo ubikoze nabi - akenshi ushingiye kumusenyi usanzwe hamwe na epoxies isanzwe - isesagura bije yawe kandi yihutisha ruswa. Irangi ryawe rizanyerera rwose.
Twateguye iki gitabo kugirango dukureho gukeka. Intego yacu ni uguha ibikoresho abashoramari, abasobanuzi, hamwe nitsinda ryamasoko hamwe nibintu bitarimo imiti. Uzamenya ibipimo nyabyo byo kwitegura bisabwa, harimo protocole ya ASTM ikomeye. Uzavumbura kandi impuzu yo gutoranya ikenewe kugirango umenye neza, utagira inenge, kandi urambye.
Ibyingenzi
Adhesion ishingiye kuri chimie yo hejuru, ntabwo ari ubukana gusa: Umusenyi usanzwe wumucanga akenshi ubangamira urwego rwa zinc utarinze kubahiriza irangi.
Imyaka itegeka inzira: Galkani nshya, ikirere cyikirere, hamwe na zinc ikirere cyuzuye bisaba protocole zitandukanye.
Ntuzigere ukoresha alkyd cyangwa amavuta ashingiye kuri primers: Zifata hamwe na zinc (saponification), zihindura interineti ya primer muburyo bwisabune inyerera, biganisha ku gukuramo rwose.
Suzuma ubundi buryo hakiri kare: Kubiterane bisobanutse neza bikunda kugoreka ubushyuhe, primers ikora cyane ya zinc ikungahaye kuri primers yambaye ubusa irashobora gutanga ROI nziza kuruta hot-dip galvanizing (HDG) wongeyeho irangi.
Urubanza rwubucuruzi kuri 'Sisitemu ya Duplex '
Tugomba kubanza gusobanura Sisitemu ya Duplex kugirango twumve agaciro kayo. Nibikorwa byingenzi byo guhuza ibishyushye bishyushye (HDG) hamwe na topcoat yihariye cyangwa ifu. Kugirango ubigereho neza, inzira yose igomba gukomeza kubahiriza byimazeyo ASTM D6386. Ibipimo ngenderwaho bigenga itegurwa rya zinc hejuru yo gushushanya.
Inyungu yibanze yiyi sisitemu iri mubisubizo byayo. Filime yo gusiga irangi ikora nka bariyeri. Irinda igicucu cya zinc kiri munsi yo kurya imburagihe iterwa n’imyuka ihumanya ikirere. Mubisubizo, zinc iri munsi itanga uburinzi bukomeye bwa cathodic. Niba irangi ryashushanijwe cyangwa rinini, zinc ikora nka anode yo gutamba. Irinda munsi ya firime ingese, kwemeza ko ibyangiritse bikomeza kuba hafi.
Ubu buryo bubiri bwo kwirwanaho bwongerera igihe kirekire. Ubuzima bwa serivisi yose ya sisitemu ya duplex mubusanzwe inshuro 1.5 kugeza kuri 2,5 yumubare wubuzima bwa buri muntu bwa zinc no gusiga irangi wenyine. Ntubona gusa ibice bibiri byo kurinda; ubona ingaruka zo kugwiza.
Iyi logique ikoreshwa muburyo bwinshi bwo gupima. Urashobora kuvura ibyuma biremereye nyuma yo guhimba ibyuma byubatswe kuri stade yo hanze. Ibinyuranye, urashobora gukoresha mbere-irangi icyuma cya galvanised coil na ibyuma byerekana ibyuma byo gukora ubwubatsi bunini cyane. Amahame ya chimie nuburinzi bikomeza kuba bimwe utitaye kumiterere yibintu.
Gusuzuma Imiterere ya Coating: Ibyiciro 3 byikirere
Urwego rwo gusuzuma isura yawe rutegeka gutsinda cyangwa gutsindwa. Gutegura protocole biterwa rwose nigihe kirekire Icyuma cya Galvanised cyerekanwe nikirere. Ntushobora gufata zinc zishaje na zinc nshya kimwe.
Ibishya bishya (Amasaha 0 kugeza 48)
Muri idirishya ryambere, imiterere yicyuma iroroshye cyane kandi iragaragaza cyane. Hafi ya nta zinc zivanze hejuru. Icyuma nticyoroshye. Kuberako idafite imiterere, irangi ntacyo rifata. Igikorwa ni itegeko. Ubuso busaba gukora isuku neza kandi byemewe bya shimi cyangwa imashini. Ugomba gutobora hejuru kugirango ukore microscopique anchor point ya adhesion.
Ikirere Cyane (Iminsi 2 kugeza 1) - Icyiciro Cyinshi Cyicyiciro
Nicyiciro kibi cyane cyo gutwikira porogaramu. Muri aya mezi, ubuso burahinduka vuba. Ihinduka igipfundikizo cya zinc oxyde na hydroxide ya zinc. Ukunze kubona ibi nk'ifu ya poweri yera ku cyuma. Izi mikoreshereze irekuye cyane ibangamira irangi. Niba ubishushanyijeho hejuru, irangi rifata ifu, hanyuma ifu ikava mubyuma. Igikorwa gisaba gusukura no kwerekana umwirondoro. Ugomba kuvanaho burundu ububiko bwa chalky mbere yo gukoresha primer iyariyo yose.
Ikirere Cyuzuye (Umwaka 1 +)
Nyuma yumwaka umwe, ibyuma birahagarara. Imiterere yubuso irahinduka nkuko ikurura karuboni ya dioxyde de mwuka. Ikora karubone ya zinc. Nibintu bifatanye cyane, amazi adashonga. Zinc karubone mubyukuri ni byiza cyane, muburyo busanzwe bwo gusiga irangi. Igikorwa hano gisaba kwitonda. Ukeneye gusa isuku yoroheje ukoresheje amazi ashyushye hamwe na degreaser yoroheje. Ni ngombwa ko udakuraho zinc karubone mugihe cyo gukora isuku.
Ikirere |
Igihe ntarengwa |
Imiterere y'ubuso |
Igikorwa gisabwa |
Agashya |
Amasaha 0 kugeza 48 |
Byoroheje, birabagirana, ntibisanzwe |
Sukura neza; koresha imiti cyangwa imashini. |
Ikirere |
Iminsi 2 kugeza kumwaka 1 |
Ingese y'ifu yera (zinc oxyde / hydroxide) |
Mukureho gukuraho ibintu byose bidahwitse hamwe numwirondoro. |
Ikirere cyuzuye |
Umwaka + |
Zinc karubone ihamye |
Kugabanuka byoroheje gusa; kubika karubone ya zinc. |
Gutegura Ubuso: Kugabanya Ingaruka zo Kunanirwa
Nubwo wamenya neza ikirere cyikirere, imikorere mibi mugihe cyo kwitegura izabangamira sisitemu ya duplex. Ugomba gukurikiza protocole ikomeye kugirango ugabanye ingaruka zo gutsindwa.
Kugabanya Ingaruka (Ikizamini cya Chromate)
Ibikoresho bikunze gushira ibyuma bishya bikozwe mubwogero bwa chromate. Ibikoresho bya passivation birinda kubika neza igihe cyoherezwa. Ariko, chromates irwanya cyane irangi. Ugomba buri gihe kugerageza abakozi ba passivation ukoresheje protocole ya ASTM B201. Niba ikizamini kigaragaza chromates, ntushobora gusiga irangi ibyuma ako kanya. Chromate igomba kuba ikirere gisanzwe, cyangwa ugomba kubikuraho ukoresheje imashini.
Gusukura Porotokole
Mbere yo kwikuramo hejuru, ugomba kuvanaho umwanda wose, amavuta, nibihumanya umubiri. Kurikiza izi ntambwe zikurikiranye kugirango usukure neza:
Koresha igisubizo cya alkaline cyangwa acide (mubisanzwe bivangwa 25: 1) hejuru.
Koresha igikonjo cyoroshye kugirango uhindure ibintu byangiza umubiri.
Kwoza hejuru neza n'amazi meza, meza kugirango ubuze ibikoresho byogusukura.
Emera icyuma cyumuke mbere yo gukomeza icyiciro.
Kurupapuro rushya rwiza, vinegere yera yinganda ihanagura irashobora gutanga umusaruro mwiza cyane, acide yoroheje mugihe icyarimwe ikuramo amavuta yoroheje.
Kwerekana (Gukora icyitegererezo)
Irangi rikenera ikibaya cya microscopique nimpinga kugirango ufunge. Ibi tubyita icyitegererezo. Ufite inzira nke zo kubigeraho utarimbuye icyuma.
Guturika cyane (SSPC-SP 16): Ngiyo nganda nganda yo gushushanya imashini. Ugomba gukoresha tekinike yo guturika. Fata nozzle hagati ya dogere 30 na 60. Koresha ubukana buke. Abrasive igomba gutondekanya kuri Mohs ubukana bwa 5 cyangwa munsi (nkibishishwa bya waln, ibigori, cyangwa umucanga wihariye). Komeza ubunini bwa microne 200 na 500.
Ingaruka Zirenze: Ugomba kwirinda igipimo cya dogere 90 gisanzwe. Ibisasu bisanzwe bizambura zinc byoroshye. Ibi bisenya ibitambo bya anode birinda, bigatuma inzira ya galvanizing yose idafite intego. Niba guhanagura ibintu byunvikana cyane kubakozi bawe, ntibisanzwe muburyo bwa chimique.
Koza Primers / Acrylic Pretreatment: Izi ni aside irike yagenewe guhindura imiti ihindagurika rya zinc. Bahatira zinc kwakira irangi badakeneye gukuramo imashini. Ibi bikuraho ingaruka zirenze urugero.
Guhitamo Igifuniko: Chimie Ifatika
Imyiteguro yawe irashobora kuba itagira inenge, ariko gukoresha chimie itari yo bizakomeza gutera gutsindwa. Zinc ni icyuma cyitwa alkaline, kandi ikora cyane hamwe no gushushanya amarangi.
Amategeko ya Karidinari (Ibyo Kwirinda)
Ugomba kubuza rwose amarangi ashingiye kuri alkyd hamwe na primers isanzwe ishingiye kumavuta. Iyo zinc ihuye na alkyd resin, reaction ya chimique idashobora kugaragara. Ibi bizwi nka saponification. Zinc ya alkaline ikora hamwe namavuta kugirango ikore isabune isanzwe yisabune munsi ya firime. Iyo saponifike imaze kubaho, igifuniko kizashishwa mumabati manini, yoroshye. Ibi byemeza ko byanze bikunze.
Sisitemu Yemewe
Ugomba kwerekana primers yateguwe neza kuri interineti na zinc. Inganda zemera ibyiciro bibiri byibanze.
Umwihariko wo Kwiyitirira Primers: Ibi byateguwe byumwihariko kubushyuhe-dip galvanised surface. Bihuye nibisobanuro nka SSPC Irangi 27. Baruma mubyuma muburyo bwa shimi.
Acrylic Metal Primers: Amazi meza yo mu bwoko bwa acrylic primers yerekana neza cyane kuri zinc isukuye neza. Bakomeza guhinduka kandi bakarwanya saponification burundu.
Amakoti yo hejuru cyane
Iyo umaze kugaragara hejuru, ukenera ikote rikomeye kugirango uhangane n’ibidukikije. Turasaba Direct-To-Metal (DTM) acrylic latex irangi cyangwa DTM ya acrylic enamels kubintu byinshi byo hanze byubaka.
Kubidukikije bikaze, ugomba kuzamura ibisobanuro byawe. Tekereza ku mazi yo mu mazi ya chlorine menshi. Ipoti isanzwe ya polyester yananiwe vuba iyo ihuye numwuka wamazi yo murugo. Muri ibi bihe, vuga inganda-urwego rumwe. Irangi ryihariye ryinganda ryirengagiza gukenera primers zitandukanye kuko zihuza imiti na zinc layer.
Icyiciro |
Ingero / Ubwoko |
Icyemezo cya sisitemu ya Duplex |
Ibibujijwe |
Alkyd enamels, amavuta asanzwe ashingiye kuri primers |
Irinde rwose. Bitera saponification (gushiraho isabune) no gukuramo byose. |
Byemewe |
SSPC Irangi 27, ibyuma bya acrylic primers, gukaraba primers |
Birasabwa cyane. Itanga imiti ihamye itiriwe ititwara nabi. |
Ikoti ryiza |
DTM acrylic latex, emam ya DTM, inganda intambwe imwe ya zinc |
Birasabwa cyane. Ikora inzitizi iramba, ihindagurika, irwanya ikirere. |
Impaka-Impaka: Igihe cyo Gusimbuka Galvanizing + Irangi
Tugomba gukemura ikibazo gikomeye cyo gushyira mubikorwa. Gushyushya gushyushya gukurikirwa no gushushanya ni ibintu bitangaje, inzira yubucuruzi bwinshi. Itwara intera ndende idasanzwe kubwikosa. Rimwe na rimwe, duplex sisitemu niyo guhitamo nabi kumushinga wawe.
Gushyira mubikorwa Ukuri & Kugenzura Ubuziranenge
Ibihimbano ntibikunze kugenda neza. Guhindura umurima bisaba gusudira kurubuga. Gusudira ako kanya bisenya urwego rwa HDG. Iyo abashoramari basana ibyo gusudira mumurima hamwe na spray ya zinc ikonje, gusana birutwa cyane nuruganda rushyushye. Ukora umurongo udakomeye murwego rwo kurwanya ruswa.
Ingaruka zo Kugoreka Ubushyuhe
Ugomba kandi gutekereza ku bushyuhe bukabije bwo kwiyuhagira. Ubwubatsi bukomeye cyangwa busobanutse neza bwubatswe burashobora kwangirika cyane kurupapuro no kugoreka mugihe cyo kwibiza. Niba igishushanyo mbonera cyawe gisaba kwihanganira neza, ugomba kubaza amabwiriza ya ASTM A384 yo kugoreka ubushyuhe. Akenshi, ubushyuhe burashobora kuba hejuru cyane.
Ubushobozi-Bukuru bwa Primer Ubundi
Reba ibisabwa kugirango witegure hejuru yikoti yawe yanyuma. Amakoti amwe yo mu rwego rwo hejuru cyangwa amakoti yinganda arasaba umwirondoro wa 'Hafi-Yera-Yera ' kugirango uhuze neza. Niba uturitse hejuru yubuso hafi-Yera, ibyo guturika bikabije bizasenya zinc burundu. Uzahita ushora imari yawe mu mukungugu.
Icyemezo Cyumvikana
Mubihe bisobanutse neza, cyangwa mubikorwa biremereye byinganda bisaba guturika cyane, nibyiza cyane gusimbuka hot-dip galvanizing burundu. Koresha primaire ya zinc ikungahaye cyane kugirango ushire neza ibyuma byambaye ubusa. Kurikiza ibi hamwe na top-imikorere yawe yo hejuru. Uzageraho kuramba kuramba, ukureho ingaruka zo kugoreka ubushyuhe, kandi woroshye cyane urunigi rwawe.
Umwanzuro
Gushushanya isura ya zinc ni byiza cyane, ariko inzira ntishobora kwihanganira ama shortcuts. Intsinzi yawe ishingiye gusa ku gukora isuzuma ryukuri ryikirere, gukora tekinike yerekana neza, kandi wirinda rwose ibisigazwa bidahuye nka alkyds.
Mbere yo gutangiza umushinga wawe utaha, fata ingamba zo kurinda ibisobanuro byawe. Gisha inama amasoko yawe hamwe nitsinda ryubwubatsi kugenzura ibikorwa byabatanga akazi. Menya neza niba bagenzura neza ASTM D6386 kugirango bategure hejuru na SSPC-SP 16 yo guturika. Mugusaba gukurikiza aya mahame, uhindura uburyo bwo gushushanya ibintu bishobora guhinduka muburyo buteganijwe, burambye cyane bwa duplex.
Ibibazo
Ikibazo: Urashobora gushushanya neza hejuru yicyuma?
Igisubizo: No. Ugomba guhanagura neza ibyuma, ukabishushanya ukoresheje imiti ya chimique cyangwa iturika ryumuvuduko ukabije, hanyuma ukabanza ugashyiraho primer yihariye.
Ikibazo: Ni ubuhe bwoko bw'irangi buzafatana n'icyuma cya galvanised?
Igisubizo: Ugomba gukoresha Direct-To-Metal (DTM) acrylic latex irangi, enamel ya acrylic, cyangwa inganda zihariye inganda imwe yintambwe yakozwe kuri zinc. Ntugomba na rimwe gukoresha amarangi ya alkyd cyangwa amavuta, kuko azatera saponification kandi byanze bikunze.
Ikibazo: Nigute nshobora gusiga irangi icyuma (ikirere)?
Igisubizo: Niba ubonye 'ingese yera ' (okiside ya zinc), ugomba kuyikuraho neza ukoresheje isuku ikabije no gutesha agaciro. Niba ubona ingese zitukura, ibyuma biri munsi biragaragara. Ugomba gukora ingese gakondo kandi ugashyiraho primer ikungahaye kuri zinc mbere yo gutwikira neza hejuru.
Ikibazo: Nkeneye primer idasanzwe kumashanyarazi yicyuma?
Igisubizo: Yego. Coil ikunze kwerekana imiti ivura nka chromates cyangwa amavuta azunguruka akoreshwa muruganda. Ugomba kuvanaho imiti mbere yo kurinda. Nyuma yaho, ugomba gushiraho ubwikorezi cyangwa icyuma gishingiye kuri acrylic primer mbere yo gukoresha ikoti rya nyuma.
