Iifasteners zezamalungu asisiseko ngokubanzi, adla ngokubizwa ngokuba "ziindawo eziqhelekileyo".Kwezinye iziqhoboshi ezinamandla aphezulu kunye nokuchaneka, unyango lwangaphezulu lubaluleke ngakumbi kunonyango lwe-thermal.Zonke iintlobo ze-fasteners ezisetyenziswa kwinani elikhulu lezixhobo zoomatshini, phantse zonke kufuneka zidityaniswe emva kokunyangwa komphezulu, ukuze kufezekiswe i-anticorrosion, ukuhlobisa, ukumelana nokunxiba, ukunciphisa i-friction coefficient kunye nezinye iziphumo, kunye ne-inorganic surface unyango lwe-electrogalvanizing kunye ne-galvanizing eshushu. iteknoloji yokukhusela i-cathodic yokukhusela.
Umgaqo wemveliso ye-electrogalvanizing steel fastener kukusetyenziswa kwe-electrolysis, ukubunjwa kweyunifomu, eshinyeneyo, idityaniswe kakuhle yesinyithi okanye i-alloy deposition layer phezu kwendawo yokusebenza, ukubunjwa koqweqwe lokugquma phezu kwentsimbi, ukwenzela ukuba ukufezekisa ukukhuselwa kwenkqubo ye-corrosion yensimbi.Ngoko ke, i-electrogalvanized coating yi-directional movement ukusuka kwi-electrode efanelekileyo ukuya kwi-electrode engafanelekanga usebenzisa okwangoku.I-Zn2 + kwi-electrolyte i-nucleated, ikhulile kwaye ifakwe kwi-substrate phantsi kwesenzo sokukwazi ukwenza i-galvanized layer.Kule nkqubo, akukho nkqubo yokusabalalisa phakathi kwe-zinc kunye nentsimbi.Ukusuka kwi-microscopic observation, kufuneka ibe yi-zinc ecocekileyo.Ngokwesiseko, idiphu eshushu isinyithi-zinc ingxubevange umaleko kunye umaleko zinc esulungekileyo, kwaye zagalvanized kuphela umaleko zinc esulungekileyo umaleko, ngoko, ngentsimbi-zinc ingxubevange umaleko ukusuka ukutyabeka ikakhulu isekelwe ukuchongwa indlela yokwaleka, ilungele iziqhoboshi zentsimbi, ucingo lwentsimbi, umbhobho wentsimbi kunye nezinye iimveliso.Indlela ye-Metallographic kunye nendlela ye-XRD isetyenziselwa ukukhangela i-coating ukwahlula i-electrogalvanizing kunye ne-galvanizing eshushu, kunye nokunika isikhokelo sohlalutyo olungaphumeleli.
Kukho iindlela ezimbini zokuchonga i-electrogalvanizing kunye ne-hot galvanizing coatings.Enye yindlela ye-metallographic: indlela ye-metallographic ayikhawulelwanga nguluhlu lomxholo kunye nobukhulu besampulu, kwaye ifanelekile kuzo zonke iimveliso ze-electrogalvanizing kunye ne-hot galvanizing.Enye indlela ye-X-ray diffraction: esebenzayo kububanzi obungaphezu kwe-5mm iibholiti zokucoca kunye namantongomane kwinqwelo-moya ene-hexagonal;I-diameter yangaphandle inkulu kune-8mm yentsimbi yombhobho wemveliso ye-radian, ukuqinisekisa ukuba isampuli inokwenziwa ibe yi-5mm × 5mm isampuli ethe tyaba yomphezulu, kunye nazo zonke iintlobo zeemveliso zokwaleka.Inokuqinisekisa isakhiwo sekristale somxholo wokugquma ≥5% isigaba.Iisampulu ezinezinki ezishinyene kakhulu ezicocekileyo azifanelekanga kwi-X-ray diffraction.
i-electrogalvanizing
Iingubo ezishushu ze-galvanizing
Ixesha lokuposa: Sep-15-2022