Galvanized mabhaudhi: akasimba mukuvaka? 

Iwe unoona ‘yakaputirwa’ papepa rinotsanangurwa, uye mufungo wapakarepo ndewo‘kusaora, unogara kwenguva refu, wakanaka.’ Asi ndiyo nhau yose yokusagadzikana here? Ndanga ndichitsvaga uye nekutsanangura zvigadziro zvekugadzira maindasitiri nekutengeserana kweanopfuura makore gumi, uye nhaurirano yakatenderedza mabhaudhi emagetsi kuve sarudzo 'yegirinhi' inowanzoreruka. Haisi chete nezve zinc coating. Zviri pamusoro pehupenyu hwehupenyu: simba rekugadzira iyo jasi, hupenyu hurefu hunopa chaizvo munzvimbo dzakasiyana, uye chii chinoitika kune bhaudhi mushure mehupenyu hwechimiro chapera. Isu tinowanzo kuputira ese galvanizing pamwe chete, asi inopisa-dip galvanizing mushure mekugadzira kupesana ne electroplating inyika dzakaparadzana mukuita uye nharaunda tsoka. Ngatikurukurei izvozvo.

Mubvunzo weZinc: Kupfuura Kungopfeka

Hot-dip galvanizing (HDG) ndiyo inorema. Unonyika bhaudhi rakagadzirwa mubhavhu rezinc yakanyungudutswa. Mhedzisiro yacho ndeyekuti gobvu, dzimwe nguva kushata zvishoma, kunoumba chisungo chesimbi. Munzvimbo yakakwirira-yakanyorova, ine munyu wakanyanya - funga kuvaka kwemahombekombe kana kugadzirwa kwemvura yakasviba - uku ndiko kuenda kwako. Inogona kusundidzira hupenyu hwebasa kusvika ku50+ makore nekugadzirisa kushoma. Ndiyo nharo yakasimba yekusimudzira: imwe yekuisa, hapana kupora, hapana kutsiva kwezvizvarwa. Simba rinobatanidzwa rinotakura mberi, asi rinobhadhara.

Zvadaro pane electro-galvanizing. Yakatetepa, inopenya, yakachipa. Inotaridzika zvakanaka mubhokisi. Asi pamubatanidzwa wakatarisana nemamiriro ekunze anogara aripo, zvinogona kungokupa makore gumi kusvika gumi nemashanu ngura tsvuku isati yatanga kubuda ropa. Ndakazviona pamapurojekiti akachipa edzimba dzekuchengetera zvinhu apo fungidziro yacho yanga isina kujeka, ichingoshevedzera kuti ‘yakagadzikiswa.’ Kondirakiti yakawana sarudzo ine mutengo wakaderera, uye taifanira kurayira kutsiviwa kwemajoini akakosha tisati tasaina. Izvo zvinopesana nekugadzikana-iyo tsvina yakafukidzwa semhinduro.

Kudanwa kwekutonga chaiko kunouya munzvimbo dzisina hukasha. Kune yemukati simbi furemu mumamiriro ekunze akaoma, HDG yakawandisa here? Zvichida. Asi wobva wafunga kuchinjika mune remangwana. Kana chivakwa ichocho chikangogadziridzwa, bhaudhi iroro richiri kuchengetedzwa. Mutengesi wandakashanda naye, Handan Zitai Fastener Kugadzira Co, Ltd. kunze kweYongnian, Hebei (iyo hombe yekugadzira yekumhanyisa hub), inowanzo mureza iyi poindi. Manotsi avo ehunyanzvi anosimbisa kuti kutsanangura maitiro akakodzera emamiriro anotarisirwa sevhisi inhanho yekutanga kuenda kune chaiyo zviwanikwa. Nzvimbo yavo padhuze nemigwagwa mikuru yekufambisa seBeijing-Guangzhou Railway zvinoreva kuti vanoona akawanda ekutumira maodha uko kunofanirwa kuve kwakajeka.

Pa-Site Realities uye Yakavanzwa Mari

Heino musoro unoshanda: hydrogen embrittlement. High-simba mabhaudhi (Grade 8.8 uye pamusoro) ayo ari electroplated anotapukira. Iyo asidhi yekuchenesa panguva yeplating inogona kuunza haidrojeni musimbi, ichiita kuti iite brittle uye iite njodzi yekukundikana pasi pekunetsekana. Iyo inyaya inozivikanwa, asi pane yekukurumidza-track saiti, ndiani ari kutarisa batch zvitupa zvekuyamura hydrogen kurapwa? Ini ndinorangarira chirongwa chedhizabhorosi kwataifanira kuramba kutumirwa kwese kwemabhaudhi emagetsi akasimba nekuti zvitupa zvekuyedza zvaishaya data rakakosha rekubikisa hydrogen. Kunonoka kunodhura kupfuura mabhaudhi pachawo.

Imwe nuance ndeye kushivirira kweshinda. Iyo gobvu HDG coating inogona kukanganisa kukwana. Iwe kazhinji unofanirwa kurova nzungu kana kushandisa oversize tapping. Kana izvo zvisina kuverengerwa mudhizaini yedhizaini, unowana vashandi vari pasaiti vachinetsekana kukwenya mabhaudhi kumba, zvichigona kurovera tambo uye kukanganisa kudzivirira ngura. Icho chidimbu chidiki chinokonzera kukakavara kukuru-chaizvoizvo. Sarudzo inogadzika inodonha kana isingakwanisi kuiswa nemazvo.

Ipapo pane kugarisana. Iwe haugone kungorova bhaudhi musimbi isina kugadziriswa mamiriro ekunze. Iyo galvanic reaction ichaita kukurumidza kuora kwenhengo yesimbi. Ndakaona izvi pane fa?ade support system. Mugadziri wekuvaka aida kutaridzika kwakaora kweCorten simbi, asi iyo yekubatanidza yaitsanangura Hardware. Mukati memakore maviri, pakanga paine mitsetse yakashata uye makomba enzvimbo. Takazopedzisira tava kuchinjika kumasimbi esimbi asina tsvina kune iwo mapoinzi chaiwo-inodhura asi inowirirana kugadzirisa.

Lifecycle uye End Game

Saka, isu tinotora galvanized bolt inotora hupenyu hwechimiro. Asi chii chinonzi upenyu? Imba yekuchengetera zvinhu inogona kuparadzwa mumakore makumi matatu kuti ivandudzwe. Panguva iyoyo, bhaudhi richiri muchimiro chakanaka. Zvakanaka here? Iye zvino chave chikamu cherukova chesimbi. Iyo zinc yekuputira ichanyanya kurasika muchoto chekudzokorodza-inoputika. Iyo simbi pachayo inogadziriswa zvakare, asi zinc yaenda. Ndiko kurasikirwa kwechinhu chinogumira.

Apa ndipo panowanikwa kuenzanisa nesimbi isina tsvina. Stainless (A4-80, semuenzaniso) ine yakanyanya kukwira yekutanga kabhoni tsoka mukugadzira. Asi kana ichibvumira kupatsanurwa kuri nyore uye kushandisazve bhaudhi rese muchimiro chitsva, calculus inoshanduka. Isu hatisati tavepo nemaitiro akajairwa, asi mumadhizaini anogoneka, igakava rinorarama. Is a galvanized bolt Kungoshandisa kamwe chete nekuti inowanzochekwa kana kukuvadzwa panguva yekupwanya? Kazhinji, hongu.

Ndinotarisa zvitupa zvekusimudzira seLEED kana BREEAM. Vanopa mbiri kune zvakadzokororwa zvemukati. Simbi iri mubhaudhi yakabatiswa kazhinji ine chikamu chepamusoro chakadzokororwa, icho chinowedzera. Asi ivo havawanzo ranga hunogona kuita huturu hwe zinc runoff mukati mehupenyu hwayo (hushoma kana hwakasungwa nemazvo) kana kusimba kwesimba rekuita galvanizing process pachayo. Iyo yekuyera sisitimu haitore mufananidzo uzere, saka kutonga kwedu kwehunyanzvi kunofanirwa kuzadza mapundu.

Nyaya Yenyaya: Iyo Coastal Walkway Kutadza

Muenzaniso wekongiri. Mukoto wekanzuru wepamhenderekedzo yegungwa wakashandisa mabhaudhi anobatisa anchor kuchengetedza simbi dzemapuranga kumapako ekongiri. Iyo spec yakangoti ‘hot-dip galvanized.’ Yaisataura ukobvu hwecoating. Mabhaudhi aive atorwa aive ari padiki diki. Munzvimbo yesplash, nekupfapfaidza munyu nguva dzose, kupfekedza kwakapera mukati memakore manomwe. Misoro yebhaudhi yakaora uye yakawedzera, ichitsemura dzimba dzekongiri.

Retrofit yacho yaive yakashata. Taifanira kubvisa mabhaudhi ekare uye kuisa matsva, panguva ino tichitsanangura kirasi yakakora (semuenzaniso, kuISO 1461, Kirasi 4) uye ichida pa-saiti kubata-kumusoro kwechero mabrasions ane yakakwira-zinc pendi. Tinodzidzei? Sustainability haisi chinhu chete; ndiko kurongeka kwechirevo. A generic call ye 'mabhaudhi‘zvinenge zvisina maturo. Iwe unoda maitiro, ukobvu, uye iyo post-yekumisikidza kuchengetedza protocol.

Apa ndipo pakakosha vagadziri vane yakasimba technical rutsigiro. Kambani inongokutengesa iwe bhokisi remabhoti haisi kubatsira. Imwe inopa matafura ekuora, madhairekitori ekushandisa, uye data rakajeka paukobvu hwekuputira kwenzvimbo dzakasiyana. Inoshandura kutenga kwechigadzirwa kuita kutsanangurwa kwekuita.

Kufamba Mhiri kweBhinary Sarudzo

Saka, mabhaudhi ane galvanized akasimba here? Mubvunzo usiri iwo. Mubvunzo chaiwo ndewokuti: Ndiwo akanyanya kusimba, akakodzera, uye ane simba sarudzo yekubatanidza iyi chaiyo nharaunda yeiyi hupenyu hunotarisirwa? Dzimwe nguva, mhinduro ndihungu akasimba. Kune yakajairwa chivakwa chesimbi chivakwa munzvimbo yakajairwa yedhorobha, HDG mabhaudhi imhinduro yakasimba, yakasimbiswa inoderedza kuchengetedza kwehupenyu.

Dzimwe nguva, mhinduro ingava ‘kwete.’ Pamwe ibhaudhi rine marara rinochenesa, rinodzorwa mukati. Kana kuti pamwe, kune zvakakosha, zvisingasvikike zvinongedzo munzvimbo dzinoparadza zvakanyanya, duplex coating (simbi isina tsvina ine galvanized outer layer) ndiyo inogoneka sarudzo, kunyangwe mutengo wayo, nekuti inovimbisa zero kupindira kwekuchengetedza.

Kutora kwangu mushure memakore ese aya? Usanyengerwa neiyo simple label. Dig mukuita. Taura nemashoko anorwadza. Funga nezveketani yose, kubva kune simba rekugadzira panzvimbo yakadai Handan Zitai Fastener (unogona kutarisa maitiro avo maitiro pane yavo saiti, https://www.zitafornasteers.com) kune vashandi vekuparadza avo vanozopedzisira vatarisana nazvo. Ndiko uko kusimba kwechokwadi mukuvaka kunogara-mune gritty, unglamorous ruzivo rwebhaudhi rakapfava.