Iibholithi zeekhemikhali ezishushu-diphu zinokuqina? 

Makhe sinqumle i-fluff yokuthengisa. Xa umntu ebuza malunga nokuqina kweebholiti zekhemikhali ezishushu zediphu, bahlala benethemba lempendulo yanaphakade. Inyani yi-messier, kwaye umbuzo wokwenyani awukho nje malunga ne-zinc coating, kodwa kwenzeka ntoni kwi-interface apho i-bolt, i-adhesive, kunye nendalo yonke idibana khona.

Ingcamango Ephosakeleyo Yomqobo

Uninzi lwee-specs ludwelisa nje ubukhulu begalvanizing, yithi, i-85 microns kwicala ngalinye. Sisiqalo esihle eso, kodwa linani lokwenziwa. Apho ndibona khona iiprojekthi zikhubeka kucinga ukuba ubukhulu bufana, ikhaka elingenakungeneka. Ayiyo. Cinga ngejometri ye-bolt-ingcambu yentambo, i-radius engaphantsi kwentloko, iiflethi eziqhekezayo. Ukuhamba kwe-zinc ngexesha lokuntywila kunokuba mncinci kule ndawo yokuphumla. Ukuba umngxuma wakho we-substrate uqinile okanye unofakelo olukhawulezileyo olukhuhla isambatho kwimisonto ngexesha lokufakwa, usanda kwenza indawo encinci yokuqalisa umhlwa, nokuba yeyiphi na inkcazo yegama. Iwotshi yokuqina iqala ukuphawula ngokukhawuleza kanye apho.

Emva koko kukho i-adhesive ye-anchor yeekhemikhali ngokwayo. Ayizizo zonke iiresin ezenziwe ngokulinganayo. Enye i-vinyl ester okanye i-epoxy formulations ecocekileyo ingaba ne-pH okanye iqulethe i-amines ethile, kwindawo ehlala ifumile, inokuchaphazela i-zinc layer kumashumi eminyaka. Andizange ndibone ukungaphumeleli kwentlekele kule nto yodwa, kodwa kwindawo ene-chloride-ecebileyo-njengegaraji yokupaka apho kusetyenziswa i-de-icing salts-inhlanganisela ngumbulali. Iityuwa zenza i-electrolyte emanzi, eqhubayo eyenza ibhulorho ukusuka kwisisombululo sepore yekhonkrithi ukuya kwibholithi. I-zinc iyazincama, ngumsebenzi wayo, kodwa izinga liyakhawuleza.

Intloko ebuhlungu yokwenyani endadibana nayo yayikwibhodi engaselunxwemeni. Iibholiti zichazwe njenge-HDG, kwaye i-adhesive yayiyimveliso ephezulu. Ukanti, kwisithuba seminyaka esi-7, kwakukho umhlwa owawukhalela kumphezulu ongqonge iwasha. Uhlalutyo lwe-post-extraction (umsebenzi ongcolileyo, obiza kakhulu) wabonisa i-zinc ubukhulu becala kwi-shank, kodwa iphelile ngokupheleleyo kwiintambo ezimbalwa zokuqala ezifakwe kwikhonkrithi. Indlela yokusilela? Ukufuma okugcwele ityuwa kubi phezulu ngokusebenzisa iintanda ze-microscopic kwikhonkrithi, kugxininise kwi-adhesive-to-thread interface. Izinki yayikhusela ibholithi yentsimbi, kodwa yatshatyalaliswa apho yayifuneka khona kakhulu. Isifundo asikokuba i-HDG imbi, kodwa ukuqina kwayo kuxhomekeke kwinkqubo.

IBond encamathelayo kunye neGap efihlakeleyo

Le yi-crux ukuba iikhathalogu azithethi ngayo. Amandla e-chemical bolt avela kwibhondi phakathi kwe-resin kunye nentsimbi. Umphezulu ogudileyo, omtsha we-zinc ulungile kukhuseleko lomhlwa, kodwa ngaba ngowona mgangatho uphezulu webhondi encamathelayo? Abanye abavelisi bokuncamathelisa baya kukuxelela ukuba ulahle i-zinc yokwambathisa kwindawo yebhondi ukuze usebenze kakhulu. Oko kubonakala kuchasene, akunjalo? Ususa ukhuseleko ukuze ufumane amandla. Lurhwebo olufuna isigwebo sobunjineli ngokusekelwe kwiklasi yokuvezwa.

Ndikhumbula umthengisi, I-Sunnian Zitai Festener Fishaner Comment Com. (ungafumana uluhlu lwabo apha https //wwww.ziitasteners.com), sakha saxoxa ngale ngongoma kanye. Ngokusekwe eYongnian, eyona ndawo iphambili yokuqhoboshela eHebei, babona izinto ezininzi ezingakrwada kunye nokutshintsha kwezinto. Baye baqaphela ukuba kwiibholiti zabo zeekhemikhali ezishushu ze-anchor ezilungiselelwe iindawo ezinobundlobongela, ngamanye amaxesha bacebisa ukukhanya, okulawulwayo ukutyhaphaza ukutyhutyha emva kwe-galvanizing ukuphucula iprofayile yomphezulu wokudibanisa, ngaphandle kokubeka esichengeni ukhuseleko lomhlwa. Isinyathelo esincinci esongeza iindleko, ngoko ke asikwenzi kuyo yonke isicatshulwa esiqhelekileyo, kodwa sithetha ngokuqonda okuphantsi komsebenzi wehlabathi lokwenyani.

Umsantsa ofihliweyo ngomnye umbulali wokuqina we-installer-induced. Ukuba umngxuma awucocwanga ngokufanelekileyo-ngokwenene, ngokufanelekileyo, nge-brush kunye nomoya-ufumana uluhlu lothuli phakathi kwe-adhesive kunye nekhonkrithi. Okanye, ukuba i-adhesive ayifakwanga ngokuchanekileyo, ishiya isithuba esijikeleze ibholithi. Loo msantsa uba nguvimba wokufuma. Nokuba ngobunzima I-HOT-DIP-IXESHA LOKUGQIBELA Ukwaleka, amanzi avaleleke ngeoksijini anokukhokelela kumhlwa kwimingxuma, kuhlaselo lwasekhaya kunye nolundlongondlongo. Ndinqumle iibholiti ezibonakala zilungile ngaphandle kodwa zinemingxuma eqatha kwezi pokotho zomoya zifihliweyo.

Ukusebenza kwexesha elide vs. Uvavanyo olukhawulezileyo

Iziphumo zovavanyo lwesitshizi setyuwa-njengeeyure ezili-1000 zomhlwa obomvu-sisixhobo esifanelekileyo sokuthelekisa kodwa sixela kwangaphambili ubukho behlabathi lokwenyani kumashumi eminyaka ubude. Uvavanyo luyaqhubeka kwaye lunobundlobongela. Iimeko ezingqongileyo zokwenyani zinemijikelo emanzi-yomileyo. Ngethuba lomjikelezo owomileyo, iimveliso ze-zinc corrosion zingenza i-patina ekhuselayo, ukunciphisa ukuhlaselwa ngakumbi. Ukomelela kudla ngokubangcono ngokwenyani kunokuba uvavanyo lwesitshizi setyuwa lucebisa, ukuba kukho la maxesha okoma.

Nangona kunjalo, kwiimeko ezifumileyo ngokusisigxina, ukukhwela ibhayisekile ngokushushu, njengendawo engaphantsi kwedekhi yebhulorho, ibali liyatshintsha. Ukujiya, ukungabikho kwamanzi, kunye nokutshintsha kobushushu okwenza ukuba ibhawuthi iphefumle itsala ukufuma ngaphakathi nangaphandle. Kulapho ndibone khona ukuncipha kwe-zinc kunomgca ngakumbi. Sibeke iliso kwiindawo ezithile zokungena kwileli kwisakhiwo sedama. I I-Hot-Dip ye-Dipvani ye-daws ibonise ukuqikelelwa, kunye nelahleko ye-zinc kwiminyaka eyi-15, evumela ishedyuli yokugcinwa okucwangcisiweyo. Undoqo yayiyimekobume erhabaxa kodwa ingaguquguquki.

Uvavanyo olukhawulezileyo lukwaphosa ukuthotywa komatshini. Ukungcangcazela, ukuguqulwa komthwalo omncinci, ukwandiswa kwe-thermal bolt yentsimbi ngokubhekiselele kwikhonkrithi. Le micro-movement inokwaphula i-brittle zinc-iron intermetallic layers, iveze intsimbi entsha. Emva kokuba oko kwenzekile, isenzo sombingelelo we-zinc siba sendawo kwaye sinamandla kuloo ngqungquthela.

Xa Okulungileyo Kwanele Kungekho-Ixabiso Lokucaciswa Ngokugqithisileyo

Ukuqhutywa kokuqina kunokukhokelela kubunjineli obugqithisileyo. Ndibone i-specs ibiza iibholiti zemichiza ye-HDG kwindawo eyomileyo ngokupheleleyo, ngaphakathi, elawulwa yimozulu. Uhlawulela inkqubo yokukhusela i-corrosion engasoze isebenze. Ukomelela akunasiphelo, kodwa kuya kuba njalo ibholithi yentsimbi yekhabhoni ecacileyo kweso sicwangciso. I-zinc ayifaki ixabiso apho.

Ngokuchaseneyo, kwiatmospheri zemizi-mveliso ezonakalisa kakhulu (izityalo zekhemikhali, ii-mills zamaphepha), umgangatho we-HDG usenokuba lukhetho olungalunganga kwasekuqaleni. Isilingi yokuqina kwayo iphantsi kakhulu. Apha, unokufuna inkqubo ye-duplex: i-hot-dip galvanized kunye ne-epoxy powder coat ekumgangatho ophezulu. I-zinc ibonelela ngokukhuselwa kwe-cathodic ukuba i-coating yonakalisiwe (i-plus enkulu), kwaye i-epoxy inika umqobo onzima kakhulu, onganyangekiyo. Kubiza kakhulu, kodwa malunga nokuyila ubomi benkonzo obufunekayo. Ukuzama ukwenza ibholiti ye-HDG eqhelekileyo kwiminyaka engama-50 kuloo ndawo yindlela yokusilela kwangaphambi kwexesha.

Kulapho ixabiso lomenzi onolwazi lingena khona. Inkampani efana ne-Handan Zitai Fastener, emi kweyona ndawo inkulu yemveliso yaseTshayina ekumgangatho ophezulu kunye namakhonkco olungiselelo, ayisiyiyo nje imveliso. Benza iiodolo ezingenakubalwa zeendawo ezahlukeneyo. Incoko elungileyo yobugcisa kunye nabo inokukukhokelela kude ekusebenziseni imveliso yebakala langaphakathi ukuya kwiprojekthi engasemanzini, okanye ekuchitheni imali eninzi kwinkqubo yomgangatho wolwandle kwishelufu yokugcina impahla. Imbono yabo, esekelwe kumthamo kunye nokwahluka, yongeza umaleko osebenzayo kwidatha yokuqina kwethiyori.

Isigwebo: Yinkqubo, hayi icandelo

Ngoko, buyela kumbuzo wokuqala. Ukuqina kwe-a I-Hot-Dip-Dip ye-Dip ye-Dicvanity yekhemikhali ayikho inombolo enye. Sisiphumo: umgangatho kunye nokuhambelana kwe-galvanizing (ubukhulu bengubo, ukugubungela), ukuhambelana kunye nokufakwa ngokufanelekileyo kwe-adhesive, ukulungiswa kwe-substrate yekhonkrithi, kunye nokuvezwa kwendawo ethile (i-chlorides, imijikelezo yomswakama, ukushisa).

Ukususela kwinto endiyibonileyo kwiisayithi kunye nasemva kokufa, ibholithi ene-galvanized (ngokuqwalaselwa ngokufanelekileyo kwintambo yokugubungela), idibaniswe ne-adhesive efanelekileyo efakwe ngokufanelekileyo kwindawo ephakathi, iya kubonelela ngokulula ubomi benkonzo ye-30 +. Iintsilelo phantse zisoloko zilandelela umva kwi-compromise kwenye yezo zikhonkco zesixokelelwano-kaninzi ufakelo, ngamanye amaxesha ukungafani okucacileyo.

Ke ngoko, musa ukujonga nje isatifikethi sebholithi. Cinga ngendibano iphela. Cacisa iinkqubo zokucoca umngxuma. Yiqwalasele imeko-bume ngendlela esengqiqweni. Kwaye uqonde ukuba i-zinc iyazincama ukukhusela intsimbi; ukuqina kwayo kuchazwa ngokwenyani ukuba uzimisele kangakanani ukuyiyeka idleke. Yila kwaye ucacise ngaloo nkcitho engqondweni, kwaye uya kufumana ukusebenza ohlawulayo.