Iibholithi zegalvanized: zizinzileyo kulwakhiwo? 

Ubona ‘igalati’ kwiphepha elithile, yaye ingcamango ekhawulezileyo ‘imelana nomhlwa, ihlala ixesha elide, ilungile.’ Kodwa ngaba lilo lonke ibali lozinzo? Kudala ndikhangela kwaye ndichaza iziqhoboshi zolwakhiwo lwemizi-mveliso kunye nezorhwebo isithuba esingaphezu kweminyaka elishumi, kwaye incoko ejikeleze iibholiti ezenziwe ngamagalvanized ibe lukhetho 'oluhlaza' ihlala ilula kakhulu. Akunjalo nje malunga nokugquma kwe-zinc. Kumalunga nomjikelo wobomi: amandla okuvelisa loo ngubo, ixesha elide elibonelela ngokwenene kwiindawo ezahlukeneyo, kwaye kwenzekani kwibholiti emva kokuphela kobomi besakhiwo. Sidla ngokudibanisa zonke iigalvanizing kunye, kodwa i-hot-dip galvanizing emva kokuyilwa ngokuchasene ne-electroplating zihlabathi ngokwahlukeneyo ekusebenzeni kunye nokunyathela kokusingqongileyo. Masiyikhuphe loo nto.

Umbuzo weZinc: Ngaphezu kokutyabeka nje

IHot-dip galvanizing (HDG) bubunzima obunzima. Uyithi nkxu ibholithi eyenziweyo kwibhafu enezinki etyhidiweyo. Isiphumo kukuba ngqindilili, ngamanye amaxesha rhabaxa kancinane, isambatho esenza ibhondi ye-metallurgical. Kwindawo enobumanzi obuphezulu, enetyuwa eninzi—cinga ngokwakhiwa konxweme okanye izityalo zokucocwa kwamanzi amdaka—oku kukuya kwakho. Inokutyhala ubomi benkonzo ukuya kwiminyaka engama-50+ ngolondolozo oluncinci. Leyo yingxoxo eyomeleleyo yozinzo: ufakelo olunye, akukho kupeyintwa kwakhona, akukho kutshintshwa kwezizukulwana. Amandla afakwe ngaphambili alayishwe ngaphambili, kodwa ayahlawula.

Emva koko kukho i-electro-galvanizing. Ibhityile, iyakhazimla, inexabiso eliphantsi. Ibukeka icocekile kwibhokisi. Kodwa kunxibelelwano lwesakhiwo olujongene nemozulu engaguqukiyo, inokukunika kuphela iminyaka eyi-10-15 phambi kokuba umhlwa obomvu uqalise ukopha. Ndikhe ndayibona kwiiprojekthi zogcino lwexabiso eliphantsi apho i-spec yayingacacanga, ibiza nje ‘igalvanized.’ Umakhi wafumana ukhetho olunexabiso eliphantsi, kwaye kwafuneka sigunyazise ukutshintshwa kwamalungu abalulekileyo ngaphambi kokuba atyikitye. Oko kuchasene nokuzinzileyo-yinkunkuma efihliweyo njengesisombululo.

Umnxeba wokugweba wokwenyani ufika kwiimeko ezinobundlobongela obunganeno. Kwisakhelo sensimbi yangaphakathi kwimozulu eyomileyo, ngaba i-HDG igqithise? Mhlawumbi. Kodwa ke ucingela ukulungelelana kwixesha elizayo. Ukuba eso sakhiwo sikhe salungiswa, loo bholithi isakhuselwe. Umthengisi endisebenze naye, I-Sunnian Zitai Festener Fishaner Comment Com. ephuma eYongnian, eHebei (laaa ndlu inkulu yokuvelisa i-fastener), ihlala iyindwe le ngongoma. Amanqaku abo obugcisa agxininisa ukuba ukucacisa inkqubo efanelekileyo yemeko yenkonzo elindelekileyo linyathelo lokuqala elibhekiselele ekusebenzeni kobutyebi bokwenene. Indawo yabo kufutshane neendlela ezinkulu zothutho njengeBeijing-Guangzhou Railway ithetha ukuba babona uninzi lweeodolo zokuthumela ngaphandle apho ii-specs kufuneka zicace gca.

Izinto zokwenyani ezikwisiza kunye neeNdleko ezifihlakeleyo

Nantsi intloko esebenzayo: i-hydrogen embrittlement. Iibholithi zokuqina okuphezulu (kwiBakala 8.8 nangaphezulu) ezifakwe kwi-electroplated zisesichengeni. Ukucocwa kweasidi ngexesha lokutyalwa kunokungenisa i-hydrogen kwintsimbi, iyenze ibe brittle kwaye ithande ukungaphumeleli kwintlekele phantsi koxinzelelo. Ngumcimbi owaziwayo, kodwa kwindawo ekhawulezayo, ngubani ojonga iziqinisekiso zebhetshi kunyango loncedo lwe-hydrogen? Ndikhumbula iprojekthi yedekhi yebhulorho apho kwafuneka sikhabe yonke imithwalo yeebholiti ezinezibilini eziphezulu ngenxa yokuba iziqinisekiso zovavanyo zaziphosa idatha ebalulekileyo yokubhaka kwe-hydrogen. Ukulibaziseka kubiza ngaphezu kweebholithi ngokwazo.

Enye i-nuance kukunyamezela intambo. Ukugquma kwe-HDG engqingqwa kunokuchaphazela ukulingana. Uhlala kufuneka ucofe i-nut okanye usebenzise ukucofa okugqithisileyo. Ukuba oko akubalwanga kwimizobo yoyilo, ufumana abasebenzi kwisiza bezabalaza ukukrola iibholithi ekhaya, okunokuthi kubethe imicu kwaye bebeke esichengeni ukhuseleko lomhlwa. Yinkcukacha encinci ebangela ukungqubana okukhulu-ngokoqobo. Ukhetho oluzinzileyo luyahlukana ukuba alukwazi ukufakwa ngokuchanekileyo.

Emva koko kukho ukuhambelana. Awungekhe ubethe nje ibholithi yegalvanized kwintsimbi yemozulu engalungiswanga. Ukusabela kwe-galvanic kuya kukhawulezisa ukubola kwelungu lentsimbi. Ndikubonile oku kwinkqubo yenkxaso ye-fa?ade. Umakhi wayefuna inkangeleko eruliweyo yentsimbi yeCorten, kodwa iinkcukacha zoqhagamshelo zikhankanye ihardware eyenziwe ngamagalvanized. Kwisithuba seminyaka emibini, kwabakho imigca embi kunye nemingxuma yendawo. Saye sagqiba ukutshintshela kwizibophelelo zensimbi ezingenasici kula manqaku athile-ixabiso elibi kakhulu kodwa elihambelanayo.

Ubomi kunye noMdlalo wokuphela

Ke, sicinga ukuba ibholithi enesitayile igcina ubomi besakhiwo. Kodwa buyintoni obo bomi? Indawo yokugcina impahla inokudilizwa kwiminyaka engama-30 ukuze iphuhliswe kwakhona. Ngelo xesha, ibholithi isekwimo efanelekileyo. Ngaba oko kulungile? Ngoku yinxalenye yomlambo wentsimbi. I-coating ye-zinc iya kulahleka kakhulu kwisithando somlilo-i-volatilizes. Intsimbi ngokwayo iphinda isetyenziswe ngokugqibeleleyo, kodwa i-zinc iphelile. Leyo yilahleko yezinto ezinomda.

Kulapho uthelekiso lwensimbi engenasici lufumana umdla. I-Stainless (i-A4-80, umzekelo) ine-carbon footprint ephezulu kakhulu kwimveliso. Kodwa ukuba ivumela ukuchithwa lula kunye nokusetyenziswa kwakhona kwebholiti yonke kwisakhiwo esitsha, i-calculus iyatshintsha. Asikabikho ngenkqubo eqhelekileyo, kodwa kwizangqa zoyilo ezinokwakheka, yingxoxo ephilayo. Ngaba a ibhawunti eyenziwe ngegalvanized Ukusetyenziswa okukodwa ngenxa yokuba ihlala isikwa okanye yonakaliswa ngexesha lokudilizwa? Ngokufuthi, ewe.

Ndijonge iziqinisekiso zokuzinza njenge-LEED okanye i-BREEAM. Banika ikhredithi yesiqulatho esenziwe ngokutsha. Intsimbi kwibholiti enesitayile ihlala ineqhezu eliphezulu elihlaziyiweyo, elidibanisayo. Kodwa abafane bohlwaye ubutyhefu obunokubakho be-zinc ebalekayo ngexesha lobomi bayo (ubuncinci ukuba bubotshelelwe ngokufanelekileyo) okanye ubunzulu bamandla benkqubo yokugaya ngokwayo. Inkqubo yokulinganisa ayiwuthathi umfanekiso opheleleyo, ngoko ke ugwebo lwethu lobuchwephesha kufuneka lugcwalise izithuba.

Indawo: Ukusilela kweNdlela yoNxweme

Umzekelo obambekayo. Indlela yokuhamba kamasipala engaselunxwemeni yasebenzisa iibholiti zeiankile ezinezinki ukukhusela iintsimbi zamaplanga kwiipali zekhonkrithi. I-spec isanda kuthi ‘i-hot-dip galvanized.’ Ayikhange ibuchaze ubungqingqwa bokugquma. Iibholithi ezifunyenweyo bezikumgangatho ophantsi. Kwindawo yokuchaphaza, ngokutshizwa kwetyuwa rhoqo, ukugquma kwapheliswa ngaphantsi kweminyaka esixhenxe. Iintloko ze-Bolt zonakaliswe kwaye zandiswa, ziqhekeza izindlu zekhonkrithi.

I-retrofit yayiyingxaki. Kwafuneka sikhuphe iibholiti ezindala kwaye sifake ezintsha, ngeli xesha sichaza iklasi yokugqoka ebanzi (umzekelo, ukuya kwi-ISO 1461, iKlasi ye-4) kwaye ifuna i-site-up-up-up of any abrasions with high-zinc paint. Sifunda ntoni? Uzinzo ayisiyonto nje; kukuchaneka kweenkcukacha. Umnxeba oqhelekileyo wokuba 'iibholiti zegalvanized‘ iphantse yangabi naxabiso. Udinga inkqubo, ubukhulu, kunye neprotocol yokukhusela emva kokufakwa.

Apha kulapho abavelisi abanenkxaso yobugcisa obuqinileyo bebalulekile. Inkampani ekuthengisela nje ibhokisi yeebholiti ayincedi. Omnye obonelela ngeetafile zomhlwa, izikhokelo zesicelo, kunye nedatha ecacileyo malunga nobukhulu bokugquma kwiindawo ezahlukeneyo. Iguqula ukuthengwa kwempahla ibe yinkcazo yokusebenza.

Ukuhamba ngaphaya koKhetho lweBhinary

Ke, ngaba iibholiti zegalvanized zizinzileyo? Ngumbuzo ongalunganga. Umbuzo ochanekileyo ngulo: Ngaba zezona zikhethwa ixesha elide, zifanelekileyo, kwaye zisebenza kakuhle kolu qhagamshelwano lukhethekileyo kule meko ikhethekileyo kobu bomi bulindelekileyo? Ngamanye amaxesha, impendulo ibe nguewe oqinisekileyo. Ukwakhiwa kwesakhelo sentsimbi esemgangathweni kwindawo eqhelekileyo yasezidolophini, iibholiti ze-HDG ziyisisombululo esomeleleyo, esiqinisekisiweyo esinciphisa ukugcinwa kwexesha lokuphila.

Ngamanye amaxesha, impendulo isenokuba ‘hayi.’ Mhlawumbi yibhonti eyenziwe ngoomatshini yesicoci, esisebenza ngaphakathi esilawulwayo. Okanye mhlawumbi, ukudibanisa okubalulekileyo, okungafikelelekiyo kwiindawo ezinobungozi kakhulu, i-duplex coating (insimbi engenasici kunye ne-galvanized yangaphandle yangaphandle) yindlela ezinzileyo ngokwenene, nangona indleko yayo, kuba iqinisekisa ungenelelo lokugcinwa kwe-zero.

I-takeway yam emva kwayo yonke le minyaka? Musa ukuhendwa yileyibhile elula. Gcoba kwinkqubo. Cacisa ngeenkcukacha ezibuhlungu. Qwalasela ikhonkco lonke, ukusuka kumandla emveliso kwindawo efana Handan Zitai Fastener (ungajonga iinkqubo zabo kwiindawo zabo, https //wwww.ziitasteners.com) kubasebenzi bokudiliza abaya kuthi ekugqibeleni bajongane nayo. Kulapho uzinzo lwangempela kulwakhiwo luphila-kwi-gritty, iinkcukacha ezingathandekiyo zebholithi elula.