Umbhobho ofakwe igalvanized eshushu

Isinyithi esityhidiweyo siphendula kunye ne-matrix yentsimbi ukuvelisa i-alloy layer, ukwenzela ukuba i-matrix kunye ne-coating zidibaniswe. Hot dip galvanizing kukuba kuqala pickling umbhobho yentsimbi, ukuze ukususa oxide yentsimbi phezu komhlaba umbhobho wentsimbi, emva pickling, ngokusebenzisa ammonium chloride okanye zinc chloride isisombululo aqueous okanye ammonium chloride kunye nezinki chloride exutywe itanki isisombululo aqueous ukucoca, kwaye emva koko ungene kwitanki yokucoca idiphu eshushu. I-Hot dip galvanizing ineenzuzo zokugquma okufanayo, ukunamathela okuqinileyo kunye nobomi benkonzo ende. Uninzi lweenkqubo ezisemantla zamkela inkqubo yokuzaliswa kwe-zinc yombhobho we-galvanized ibhanti ngqo.

Umbhobho obandayo wamazinki

I-Cold galvanized is galvanized electric, isixa segalvanized sincinci kakhulu, kuphela i-10-50g / m2, ukuxhathisa ukubola kwayo kwahluke kakhulu kunombhobho oshushu. Abavelisi bemibhobho ye-galvanized rhoqo, ukwenzela ukuba kuqinisekiswe umgangatho, uninzi alusebenzisi i-galvanizing yombane (i-cold plating). Kuphela ngamashishini amancinci anezixhobo eziphelelwe lixesha asebenzisa i-galvanizing yombane, ngokuqinisekileyo, amaxabiso abo aphantsi. Kwixesha elizayo, imibhobho ebandayo ye-galvanized ayivumelekanga ukuba isetyenziswe njengamanzi kunye nemibhobho yegesi.

Umbhobho oshushu-diphu wentsimbi

Ukusabela okuntsonkothileyo ngokomzimba kunye neekhemikhali kwenzeka phakathi kwe-substrate yentsimbi yetyhubhu kunye nebhafu etyhidiweyo ukwenza umaleko oqinileyo we-zinc-iron alloy ukumelana nokuhlwa. Uluhlu lwe-alloy luhlanganiswe ne-zinc ecocekileyo kunye ne-matrix yepayipi yensimbi. Ngoko ke, ukuxhathisa kwayo kunamandla.

Emva kophuhliso lombhobho wentsimbi eshushu kwiminyaka yee-1960 ukuya kowe-1970, umgangatho wemveliso uphuculwe kakhulu, ngo-1981 ukuya kowe-1989 wawongwa uMphathiswa wezobuGcisa obukumgangatho ophezulu kunye nebhaso lesilivere yesizwe, imveliso nayo yanda iminyaka emininzi, 1993 imveliso engaphezulu. ngaphezu kwe-400,000 yeetoni,1999 imveliso yeetoni ezingaphezu kwama-600,000, yaze yathunyelwa kuMzantsi-mpuma Asia, eAfrika, eUnited States, eJapan, kuMazwe aseJamani nakwimimandla. Imibhobho yegalvanized yediphu eshushu isetyenziswa kakhulu njengemibhobho yamanzi kunye nemibhobho yerhasi, kwaye iinkcukacha eziqhelekileyo ziyi-+12.5~+102 mm. Emva kweminyaka yoo-1990, ngenxa yengqalelo karhulumente kukhuseleko lwendalo esingqongileyo, ulawulo lwamashishini angcolisekileyo luba ngqongqo ngakumbi nangakumbi, “inkunkuma emithathu” eveliswe ekuvelisweni kwemibhobho eyenziwe ngamatshizi eshushu-dip kunzima ukuyisombulula, idibene ne uphuhliso olukhawulezayo lwemibhobho edityanisiweyo yentsimbi, imibhobho ye-PVC kunye nemibhobho edibeneyo, kunye nombuso ukukhuthaza ukusetyenziswa kwezinto zokwakha iikhemikhali, ukusetyenziswa kwemibhobho yentsimbi edibeneyo kuthintelwe, ukwenza uphuhliso lwemibhobho eshushu-diphu edibeneyo edibeneyo iye kakhulu. iBeam echaphazelekayo kunye nomda, idiphu eshushu efakwe amazimba umbhobho odityanisiweyo kamva waphuhliswa ngokucothayo.

Umbhobho obandayo wentsimbi

Uluhlu lwe-zinc luyintsimbi yombane, kwaye i-zinc layer ixhomekeke ngokuzimeleyo kunye ne-matrix yombhobho wensimbi. I-zinc layer incinci, kwaye i-zinc layer ifakwe nje kwi-matrix ye-tube yensimbi kwaye kulula ukuwa. Ke ngoko, ukuxhathisa kwayo kukonakala. Kwizakhiwo ezitsha zokuhlala, akuvumelekanga ukusebenzisa imibhobho yentsimbi ebandayo njengemibhobho yokuhambisa amanzi.