Uva 'i-electro-galvanized' kwaye ucinga 'ukukhuselwa komhlwa,' mhlawumbi nokuba 'luhlaza' kuba yizinc, akunjalo? Kulapho incoko idla ngokuqala khona, yaye ngokufuthi iphela. Kodwa buza nabani na oye wachaza iziqhoboshi zesakhiwo sangaphandle esibona ityuwa yendlela, okanye isiqwenga sesixhobo kwindawo yokugcina impahla efumileyo, kwaye intetho yokwenyani iyaqala. Ngaba i-electro-galvanizing ngokwenene lukhetho oluzinzileyo kwizicelo zemizi-mveliso, okanye ngaba sibambelela nje kwinkqubo eqhelekileyo, enexabiso eliphantsi ngelixa singahoyi iindleko zayo zobomi? Ndichithe iminyaka ndikhangela kwaye ndivavanya ezi zinto, kwaye impendulo ayikho kwiphepha elithile. Kukwimibhobho yomhlwa emva kweenyanga ezili-18, iindleko zokutshintsha iibholiti eziliwaka kwisixokelelwano sokuhambisa, kunye nokutshintsha okuzolileyo abanye ababoneleli abakwenzayo.

Umtsalane kunye neNyaniso yangoku

Masicace: iibholiti ze-electro-galvanized zinendawo yazo. Inkqubo iqondile-i-zinc plating ngokusebenzisa i-electrodeposition. Yindleko-esebenzayo kwimitsi ephezulu yomthamo. Kwizicelo zangaphakathi, ezomileyo, okanye apho i-coating ingaphezulu malunga nokubonakala okufanayo kunye nokukhusela okuthambileyo, basebenza. Ndi-odole iitoni zazo kwiindawo ezinje ngeSithili saseYongnian eHebei, eyona ndawo iphambili yokwenziwa kwezinto ezikhawulezayo. Inkampani apho, I-Sunnian Zitai Festener Fishaner Comment Com., kunye nesiseko sabo sokunene kwiindlela ezinkulu zothutho (jonga indawo yabo ku https //wwww.ziitasteners.com ukuba ufuna imvakalelo yesikali), ungazijika ezi zinto ngomthwalo wesikhongozeli. Uncedo alunakuphikiswa.

Kodwa eyona nyani yokuqala yokukhangela ubukhulu. I-electro-galvanized coating inokuba yi-5-8 microns. Oko kubhityile. Ungaphantse uyikhulule ngozipho ukuba uyazama. Thelekisa oko kushushu-dip galvanizing, apho ujonge kwi-50+ microns, kwaye umahluko wokuqina awukho mgca-uyi-exponential. Ndifunde oku kwangethuba, ndichaza iibholiti ze-electro-galvanized M12 zezinye izixhaso zetreyi yentambo kumzi-mveliso ofumileyo. Kwisithuba seminyaka emibini, saba nomhlwa omhlophe kunye nomhlwa obomvu ekuqaleni kweengcambu. Ayisiyo ntlekele, kodwa yintloko yesondlo esingazange siyibekele imali.

Umbuzo wokuzinza uqala kanye apha: ukuba imveliso iyasilela ngokukhawuleza kwaye ifuna ukutshintshwa ngokukhawuleza, ugcino lwemithombo yokuqala (i-zinc encinci, amandla angaphantsi kwi-plating) ngokukhawuleza iyaliwa yimveliso, ukuthunyelwa, kunye nokufakelwa kokutshintshwa kwayo. Urhweba indawo esezantsi yekhabhoni yangaphambili ukuze ufumane umjikelo wobomi obuphezulu. Olo lubalo esingafane silwenze kumgangatho wevenkile xa sifaka iodolo.

Iindleko ezifihlakeleyo: iNdlela yokuSebenza kunye neMida yeNkqubo

Apho i-electro-galvanizing ibonisa ngokwenene imida yayo nakweyiphi na indawo enekloridi, i-acids, okanye ukufuma okungaguqukiyo. Ingubo ye-zinc iyidini, into enhle, kodwa incinci kakhulu iyancipha ngokukhawuleza. Ndikhumbula iprojekthi ebandakanya uqhagamshelo olufakwe ngebhanti kwindawo ebiyelweyo yoncedo lwaselunxwemeni. Sisebenzise i-ASTM F1941 i-electro-galvanized fasteners, sicinga ukuba kuya kulunga. Isitshizi setyuwa sakhawulezisa ukubola, kwaye i-zinc yaphela kwiindawo ngeenyanga, okukhokelela kwi-bimetallic corrosion kunye nentsimbi engaphantsi. Ukusilela okuqhelekileyo, okuphephekayo.

Omnye umba osoloko ungahoywa yi-hydrogen embrittlement. Inkqubo ye-electroplating inokwazisa i-hydrogen kwintsimbi ephezulu (iBanga lesi-8.8 nangaphezulu), iyenze ibe brittle kwaye ithande ukuphuka ngokukhawuleza. Oku akungomngcipheko wethiyori. Ndiyibonile i-bolts snap ngexesha le-torque-up, kwaye ngelixa ukubhaka kunokukhulula i-hydrogen, linyathelo elongezelelweyo elongeza iindleko kunye nobunzima, kwaye akusoloko lwenziwa ngokuthembekileyo kwiindleko eziphantsi, eziphezulu zevolumu. Ke, unokurhweba ngokhuseleko lomhlwa kumngcipheko wengqibelelo yomatshini. Hayi kakhulu.

Emva koko kukho umbandela wokudibanisa ukufana. Kwiindawo ezinzima ezifana neebholiti ezinemicu enzulu, i-electrodeposition inokungalingani, ishiya ingcambu yentambo-eyona nto ibalulekileyo yoxinzelelo-kunye nokukhusela okuncinci. Ngumda wenkqubo esisiseko. Ungakhankanya iingubo zokuguqulwa kwechromate (blue, yellow, black oxide) ukongeza i-passivation, kodwa oko yongeza iikhemikhali ezininzi kwikhonkco lenkqubo. Ngokukhawuleza, i-zinc plating ayilula okanye icocekile.

Ukulinganisa uBuhlaza kwiZinc

Abaxhasi bakhomba i-zinc njengento yendalo, enokuphinda isetyenziswe. Yinyani. Kodwa inkqubo ye-electroplating ngokwayo ayilungile. Amanzi amdaka asuka kwiibhafu zokuhlamba anezinc ion, iiasidi, nezinye iikhemikhali. Unyango olululo alunakuxoxwa ngokuthotyelwa kwendalo. Kwimimandla enemveliso egxininisiweyo, njengeYongnian, ulawulo lokusingqongileyo oludibeneyo lwamakhulu eevenkile zokucoca yeyona nto ibambekayo yokuzinza. Umthengisi onje I-ZITI FASTERNER ukusebenza ngokomlinganiselo kusenokwenzeka ukuba kukho indawo esembindini, amaziko onyango anamhlanje, kodwa ayisosiqinisekiso sehlabathi. Uzinzo lwebholiti lubotshelelwe ngokuthe ngqo ekuzinzeni kwevenkile yokucoca.

Ukurisayikilishwa kwakhona kukudibanisa. Ekupheleni kobomi, intsimbi ihlaziywa, kwaye i-zinc layer ilahlekile ngokusisiseko kwi-melting, kodwa ayingcolisi. Nangona kunjalo, olu ncedo lokuphela kobomi lunyanzeliseka ngakumbi kumacandelo ashushu-diphu esinyithi esinzima. Kwibholiti encinci, i-recycling footprint yentsimbi ngokwayo ilawula; igalelo lokwaleka lincinci. Isixhobo esikhulu sozinzo kukwandisa ubomi benkonzo ukulibaziseka kweso siganeko sokurisayikilishwa ixesha elide kangangoko kunokwenzeka.

Ke, ngaba iluhlaza kune, masithi, ibholithi yentsimbi engatyiwayo? Kwiindawo eziphantsi kwe-corrosion, mhlawumbi, kwisiseko samandla emveliso ecocekileyo (i-stainless steelmaking inamandla amakhulu). Kodwa kwimeko eyonakalisayo, ibholithi enye engama-304 okanye engama-316 ehlala iminyaka engama-30 iphantse yazinza ngakumbi kunokutshintsha iibholithi ze-electro-galvanized qho emva kweminyaka emi-5 ukuya kwe-10, nokuba iyarisayikilishwa. Izibalo ziyatshintsha xa ucinga ngobomi obufakelwe ngokupheleleyo.

IiShifts ezisebenzayo kunye ne-Supplier Evolution

Ishishini alimi ndawonye. Incoko isuka kwi-plated ukuya kwi-coated-coated. Ndibona imibuzo engakumbi yokwenziwa kwe-galvanizing ngoomatshini (abanqanda i-hydrogen embrittlement) okanye kwaneendlela ezintsha zokugquma iipolymer ezinefilim ezicekethekileyo ezibonelela ngokuxhathisa ukudleka okungcono kune-electro-zinc kubunzima obufanayo. Ababoneleli abagqwesileyo bayaziqhelanisa.

Xa uthetha nomthengisi wezobuchwephesha kumenzi omiselweyo-kwaye ndiye ndafumana ezi ncoko nabantu abavela kwimisebenzi efana nale Handan Zitai Fastener-azingaphindi zityhale iinombolo zekhathalogu. Babuza malunga nokusingqongileyo: Ngaba kungaphakathi endlwini? Nakuphi na ukuchaphaza kweekhemikhali? Elunxwemeni? Basenokukuhambisa kude ne-electro-galvanized ukuya kwi-coating ye-zinc-flake engqindilili okanye inketho eshushu yokudipha ukuba okuphambili kwakho kukuphila ixesha elide ngaphezu kweendleko zokuqala eziphantsi. Olo luphawu lokuqola. Indawo yabo kwisiseko esikhulu semveliso kuthetha ukuba babona zonke iintsilelo kunye neempumelelo zihamba, kwaye impendulo ingena kwiingcebiso zabo zemveliso.

Sazama ukutshintshela umxhasi kwi-Dacromet-uhlobo (i-zinc-flake) i-coated bolt ukusuka kwinqanaba eliqhelekileyo le-electro-galvanized kwisicelo sezixhobo zezolimo. Iindleko zazimalunga ne-15-20% ephezulu. Kwiminyaka emibini ngaphakathi, iibholiti ze-electro-galvanized kwibhetshi endala zazibonisa umhlwa kwiintloko ze-hex, ngelixa ezintsha zikhangeleka zintsha. Umxhasi wayeka ukukhalaza ngexabiso. Ukhetho oluzinzileyo lwabagcinele imali ekuhambeni kwexesha ngokunqanda ixesha lokunciphisa ukutshintshwa. Obo bubungqina behlabathi lokwenyani.

Ke, sithini iSigwebo?

Ukubiza iibholiti ze-electro-galvanized ezizinzileyo kwishishini libango elibanzi kakhulu. Bona ba uzinzo ngokwemeko ukhetho. Kwiindawo ezilawulwayo, ezinobungozi apho ukunganyangeki kwexesha elide kungabalulekanga, banikezela ngebhalansi efanelekileyo yeendleko, ukusebenza, kunye nokusetyenziswa kobutyebi. Ukuzinza kwabo kunyuswa xa imida yabo ethile ihlonitshwa.

Nangona kunjalo, kusetyenziso oluqhelekileyo lwemizi-mveliso-oluhlala luthetha ukufuma okuguquguqukayo, ukujiya, ungcoliseko, okanye ukuvezwa kweekhemikhali ngengozi-ukuxhomekeka kwizibophelelo eziqhelekileyo ze-electro-galvanized kuhlala kuqoqosho lobuxoki kunye nendlela ezinzileyo. Ityhala imithwalo yokusingqongileyo kunye neendleko kwixesha elizayo ngokusilela kwangaphambi kwexesha.

Indlela ezinzileyo kukutshatisa itekhnoloji yokwambathisa ngokungqongqo kwindawo yenkonzo, nokuba ixabisa ngaphezulu kwangaphambili. Kuthetha ukubuza imibuzo enzima kumthengisi wakho, ujonge ngaphaya kwexabiso-ngekhilo nganye, kwaye uqwalasele ixabiso elipheleleyo lobunini. Ishishini lineenketho ezingcono ngoku. Ukuzinza akukhona nje ngezinto eziphathekayo; imalunga nokwenza ukhetho olufanelekileyo ukuze imveliso ingafuneki ukuba yenziwe kwakhona nanini na kungekudala. Kwaye ngamanye amaxesha, eyona bolt izinzileyo yileyo ungaze ucinge ngokuyitshintsha.