Iibholiti ze-electro-galvanized flange: iindlela zokuqina? 

Masinyaniseke, xa abaninzi abantu beva 'iibholiti ze-electro-galvanized flange', bacinga ukuba 'zilungile ngokwaneleyo ukusetyenziswa kwangaphandle' kwaye bayibiza ngokuba yimini. Kulapho ziqala khona iingxaki. Ndibone iiprojekthi ezininzi apho i-spec isanda kuthi 'i-galvanized', ngaphandle kokucacisa uhlobo okanye indawo engqongileyo, ekhokelela kwi-rust streaks yangaphambi kwexesha malunga nokuba yintoni okumele ibe lunxibelelwano oluqinileyo. Umkhwa awukho malunga nokwaleka nje ngokuba ngqindilili; imalunga nokuqonda imida yayo kunye nokuyidibanisa noyilo olukrelekrele kunye nokuphatha ukusuka kwindawo yokugcina impahla ukuya kwintsimi.

Ikhaka Elingaqondwayo

I-Electro-galvanizing (i-zinc plating) inika ukugqiba okulungileyo, okucocekileyo, okusiliva. Iyathandeka ngobuhle kwaye ibonelela ngokhuseleko lwe-cathodic. Kodwa elo khaka libhityile, kaninzi zii-microns ezi-5-8 kwiibholiti zorhwebo eziqhelekileyo. Indlela yokuqina endiyibonayo ayibhekiseli kwiplating eshinyeneyo-leyo ixabisa kakhulu kwizicelo ezininzi-kodwa kulindelo olunenyani ngakumbi. Siyasuka ekuyiphatheni njengesisombululo sangaphandle jikelele. Kwimeko-bume ephakathi enomhlwa (cinga imimandla yasezidolophini enongcoliseko oluthile), inokubambelela iminyaka embalwa. Kodwa kwiindawo eziselunxwemeni okanye kwimizi-mveliso enomswakama ophezulu, kusisandulela sokusilela. Ndikhumbula ibhetshi eyayisetyenziswa kwindawo yokugcina impahla kufutshane neQingdao; umhlwa wavela kwiinyanga ezili-18. Ityuwa esemoyeni yatya nje i-zinc layer ngokukhawuleza kunokuba nabani na ebelindele.

Undoqo yindalo yedini. I-zinc i-corrodes kuqala, ikhusela i-substrate yensimbi. Emva kokuba i-zinc idliwe, i-rust iqala. Umkhwa kwizangqa zobuchwephesha kukumisela eli zinga lokusebenzisa ngokuchanekileyo ngakumbi. Ayingo-ewe/hayi umbuzo wokuqina, kodwa 'ixesha-ukuya-kokuqala-ugcino lwezibalo'. Abanye ababoneleli, abanje nge-Handan Zitai Fastener Manufacturing Co, Ltd., baya bephucuka ekuboneleleni ngedatha yobunzima bokwambatha, eyona nto ibalulekileyo kolu qikelelo. Indawo yabo e-Yongnian, indawo yokuqhafaza, ithetha ukuba baqhubene nezigidi zeebholiti kwaye babone zonke iindlela zokusilela onokucinga ngazo.

Olunye utshintsho olusebenzayo lunyanzeliso olukhulayo kunyango lwasemva kokutyalwa. I-classic blue-bright or clear chromate passivation (enika loo tint encinci emthubi) isemgangathweni. Kodwa ndibona izicelo ezingakumbi zokutyeba, ukhuseleko olungaphezulu, olufana noluhlaza okwesibhakabhaka okanye olumnyama, olubonelela ngokumelana nokugqwesa okungcono ngaphandle kokuba ne-hexavalent chrome. Lutshintsho oluncinci lwenkqubo oluqhuma ukuqina ngokubonakalayo, mhlawumbi ukongeza iiyure ezingama-50-100 kwisiphumo sovavanyo lwesitshizi setyuwa esingathathi hlangothi. Ayingomlingo, kodwa luphuculo olubonakalayo.

Apho Ihlangana khona Imisonto: I-Flange Factor

Kulapho iibholiti ze-electro-galvanized flange zifumana umdla. I-flange (i-washer edibeneyo) itshintsha umdlalo. Idala indawo enkulu yokuthwala, ekulungele ukusabalalisa umthwalo. Kodwa ikwadala umkrozo oqinileyo phakathi kweflange kunye nendawo yokukhwelana. Ukuba awuyifumani kakuhle le nto, ukufuma kuyavaleleka apho, kwaye umhlwa uyakhawuleza kweso sikhewu sifihliweyo. Ndiye ndaqhawula iibholiti ezibonakala zilungile ukusuka phezulu, kodwa umzantsi weflange wawubugxwayiba beemveliso ezimhlophe ze-zinc (umhlwa omhlophe) kunye nomhlwa obomvu.

Indlela ngoku ijolise ekutywineni ngcono olu jongano. Ezinye iispecs zibiza i-bead ye-sealant efakwe kwi-flange ebusweni ngaphambi kokuba iqiniswe. Abanye bajonge iibholiti ezinewasha yokutywina edityanisiweyo phantsi kweflange. Linyathelo elongezelelweyo, ixabiso elongezelelweyo, kodwa lijongene neyona ndawo yokusilela. Kukuhamba ukusuka ekujongeni nje ibholiti ukuya ekujongeni yonke inkqubo edibeneyo. Ukuqina akukhona nje ngokugquma kwebholiti; imalunga nemekobume oyidalelayo xa sele ifakiwe.

Kananjalo asinako ukungayihoyi i-galvanic corrosion. Ibholithi yentsimbi ye-electro-galvanized ebotshelelwe kwifreyim ye-aluminiyam yi-textbook bimetallic couple. I-zinc iyanceda, kodwa isetyenziswa ngokukhawuleza. Umkhwa wobunjineli be-savvy kukugxininisa ukuzihlukanisa-ukusebenzisa i-washers engekho-conductive okanye imikhono ukuphula indlela yombane. Ndifunde oku kabuhlungu kwiprojekthi yokunyuswa kwelanga kwiminyaka eyadlulayo. I-aluminium racking kunye ne-zinc-plated bolts, ngaphandle kokuzihlukanisa, kukhokelela ekufakeni okukhulu kwi-aluminium kwiminyaka emibini. Iibholiti zazilungile, kodwa isakhiwo sasisengozini. Isifundo esinexabiso elikhulu kwindlela yokucinga.

Ukuphatha kunye noGcino: Ababulali Abathule

Iindlela zokuqina kufuneka zibandakanye okwenzekayo phambi kokuba ibholi isetyenziswe. Iingubo ze-electro-galvanized zibuthathaka. Zinokukrwela, ziguge, okanye zingcoliseke xa ziphathwa. Ndikhe ndandwendwela iiyadi apho iingxowa zezi bholiti ziphoswa khona, zigcinwe kwindawo efumileyo, okanye zixutywe nezinye iintsimbi. Ngexesha lokufika kwabo kwindawo, ubomi babo sele buncitshisiwe. Umaleko we-zinc unokuba ne-micro-fractures ongenakukwazi nokuyibona.

Umkhwa oncomekayo linyathelo lokupakisha ngcono. Iingxowa ezivaliweyo ze-vacuum kunye ne-VCI (i-Vapor Corrosion Inhibitor) zivame ukuxhaphaka kwiiprojekthi zexabiso eliphezulu okanye ezibalulekileyo. Igcina iibholiti zicocekile kude kube ngumzuzu wokusetyenziswa. Iinkampani ezithumela ngaphandle, njengeZitai Fasteners, zihlala zisebenzisa oku njengomgangatho wothutho elwandle ukuthintela ukuvela komoya wetyuwa ngexesha lokuhamba. Kwenza umahluko omkhulu. Ungajonga indlela yabo kwi https //wwww.ziitasteners.com – ugqaliselo lwabo kulungiselelo olusuka kwisiseko sabo kufutshane neendlela ezinkulu zothutho lubonisa ukuba bayaliqonda ikhonkco lobonelelo yinxalenye yokuqina kwenxaki.

Enye ingcaciso: ukuthambisa intambo. Imicu ecacileyo ye-electro-galvanized ingaba nenyongo, ngakumbi kwiindongomane zensimbi ezingenasici (isiqhelo, kodwa yingxaki, indibaniselwano). Intsingiselo ibhekiselele kwizithambisi ezongezelelweyo ezomileyo okanye iiwax phezu kweplating. Oku kunciphisa ukukhuhlana ngexesha lokuqinisa (ukunika amandla okubamba angaguqukiyo) kwaye yongeza enye i-micro-barrier ngokuchasene nokufuma. Lixabiso eliphantsi, inyathelo elinempembelelo ephezulu elihlala lingahoywa kwiinkcazo ezisisiseko.

Indlela eNyenye yeDiphu eshushu kunye neeNdleko zokwenyani

Nayiphi na ingxoxo malunga nokuqina kwe-electro-galvanized ngokungenakuthintelwa ijika ibe yi-hot-dip galvanizing (HDG). I-HDG inika umjikelo ojiyileyo, isambatho esirhabaxa, ngokufuthi ngaphezu kwe-50 microns. Ngoko, kutheni ingeyiyo eyokuqala? Iindleko kunye nokufaneleka. Inkqubo ye-hot-dip inokushiya i-coating engalinganiyo egcwalisa imicu, efuna ukuphinda ucofe. Kwiibholiti zeflange ezichanekileyo, oku kuhlala kungamkelekanga. Umkhwa endiwubonayo yi-bifurcation ecacileyo: sebenzisa i-electro kwindawo elawulwayo, usetyenziso lobuhle, okanye apho ukunyamezela komda kubalulekile. Sebenzisa i-HDG kwiziseko ezibukhali, eziveziweyo.

Eyona ndlela yokwenyani yinkcazo ekrelekrele, hayi indlela yokwaleka enye. Ndibandakanyeka kwiiprojekthi ezininzi apho isicwangciso sokukhusela i-corrosion yi-matrix: indawo (C1 ukuya kwi-C5), ubomi benkonzo obufunekayo, kunye nokufikelela kokugcinwa. I-bolt ye-electro-galvanized bolt kunye nenkqubo yepeyinti eyongezelelweyo ingaba yisisombululo esipheleleyo, esinexabiso eliphantsi kwimeko ye-C3 kunye nenjongo ye-15 yeminyaka. Imalunga nokubeka ukhuselo.

Kwakhona kufuneka sithethe nge-hydrogen embrittlement. Inkqubo ye-electroplating inokwazisa i-hydrogen kwintsimbi ephezulu (ibakala 8.8 nangaphezulu), iyenze ibe brittle. Ukubhaka okufanelekileyo (i-de-embrittlement) emva kwe-plating ayinakuxoxwa kwizicelo ezibalulekileyo. Intsingiselo ibhekiselele kwisiqinisekiso esingqongqo apha. Abavelisi abahloniphekileyo babhaka njengemigangatho yamabakala aphezulu. Ayichaphazeli inkangeleko yengubo, kodwa ichaphazela ngokusisiseko ukuqina kwesakhiwo sebholiti. Liyinyathelo elingabonakaliyo elihlula umboneleli olungileyo kulowo mkhulu.

Ukujonga Phambili: Izixhobo kunye neeTweaks zeNkqubo

Ibhekisa phi le nto? Andiyiboni i-electro-galvanizing inyamalala. Ixabisa kakhulu kwaye inezinto ezininzi. Kodwa ukutyhala okuzinzileyo kuvela kwiitekhnoloji ezincedisayo. Enye kukuphuculwa kweengubo ze-zinc alloy, njenge-zinc-nickel okanye i-zinc-cobalt electroplating. Ezi zinika amaxesha angama-2-3 ukuxhathisa kwetyuwa yesitshizi se-zinc ecocekileyo ngexabiso eliphezulu kancinci. Bangena kwimizi-mveliso yeemoto kunye nesiphelo esiphezulu.

Enye indibaniselwano ye I-electro-geriansed iibholiti kulawulo lwe-asethi yedijithali. Ukuba uyazi kakuhle ukuba yeyiphi ibholithi eya phi kwaye nini, ungalandelela ukusebenza kwayo kunye nesicwangciso sokugcinwa. Iikhowudi ze-QR okanye iithegi ze-RFID kwi-batch packaging ziqala ukuvela. Le luphu yengxelo yedatha ekugqibeleni iya kucokisa iimodeli zethu zokuqina, izisuse ukusuka kuqikelelo lweencwadi ukuya kwihlabathi lokwenyani, ubomi obungqale kwindawo ethile.

Ekugqibeleni, imalunga nemfundo. Eyona nto ifunekayo kukugxotha i-stainless ihlala iyintsomi engcono. Kwizicelo ezininzi, icaciswe ngokufanelekileyo kwaye ifakwe ibholithi yeflange ene-electro-galvanized ibonelela ngeyona ndlela ilungeleleneyo yamandla, ukhuseleko lomhlwa, kunye neendleko. Ukomelela kwayo kunokuqikelelwa ukuba uyayihlonela imida yayo. Akusiyo isisombululo sobuchwepheshe obuphezulu, kodwa iqondwa kakuhle, xa isetyenziswe nge-nuance, iqhubeka ibamba ubuninzi behlabathi lanamhlanje kunye-ngaphandle nje kokubona, phantsi kwe-flange.