Ⅰ- IasidiUkukha
1.-Inkcazo yeIasidi-Pickling: Iiasidi zisetyenziselwa ukususa isikali se-iron oxide ngokwekhemikhali kwindawo ethile, ubushushu, kunye nesantya, esibizwa ngokuba yi pickling.
2.- Iasidi-Ukuhlelwa kwe-Pickling: Ngokohlobo lwe-asidi, yahlulwe ibe yi-sulfuric acid pickling, i-hydrochloric acid pickling, i-nitric acid pickling, kunye ne-hydrofluoric acid pickling.Kufuneka kukhethwe imidiya eyahlukeneyo ukuze kukhethwe i-pickling esekelwe kwizinto zentsimbi, ezifana ne-pickling carbon steel kunye ne-sulfuric acid kunye ne-hydrochloric acid, okanye i-pickling yensimbi engenasici kunye nomxube we-nitric acid kunye ne-hydrofluoric acid.
Ngokwemilo yentsimbi, yahlulahlulwe ibe yi-wire pickling, i-forging pickling, i-steel plate pickling, i-strip pickling, njl.
Ngokohlobo lwezixhobo zokuchola, yahlulwe ibe yi-tank pickling, i-semi-continuous pickling, i-pickling eqhubekayo ngokupheleleyo, kunye ne-tower pickling.
3.- Umgaqo wokucholwa kweasidi: Ukucholwa kwe-asidi yinkqubo yokususa izikali ze-iron oxide kumphezulu wesinyithi usebenzisa iindlela zemichiza, kungoko ikwabizwa ngokuba yikhemikhali yokuchola.Izikali ze-iron oxide (Fe203, Fe304, Fe0) ezenziwe kumphezulu wemibhobho yentsimbi ziyi-oxide esisiseko enganyibilikiyo emanzini.Xa zintywiliselwa kwisisombululo seasidi okanye zitshizwe ngesisombululo seasidi kumphezulu, ezi oxide zisisiseko zinokungena kuthotho lweenguqulelo zemichiza ngeasidi.
Ngenxa yokukhululeka, ukuqhekeka, kunye nendalo eqhekekileyo yesikali se-oksidi kumphezulu wentsimbi ye-carbon structural okanye i-alloy iron ephantsi, idityaniswa nokugoba okuphindaphindiweyo kwesikali se-oxide kunye nentsimbi yomtya ngexesha lokolula, ukolulekwa koxinzelelo, kunye nothutho umgca pickling, ezi iintanda pore ngakumbi ukwandisa nokwandisa.Ngoko ke, isisombululo se-asidi siphendula kunye nesikali se-oxide ngokwekhemikhali kwaye siphinde siphendule ngentsimbi ye-substrate yentsimbi ngokuqhekeka kunye neepores.Oko kukuthi, ekuqaleni kokuhlamba i-asidi, iimpendulo ezintathu zeekhemikhali phakathi kwesikali se-iron oxide kunye nentsimbi yesinyithi kunye nesisombululo se-asidi zenziwa ngaxeshanye izikali ze-Iron oxide zingena kwi-chemical reaction kunye ne-asidi kwaye ziyanyibilika (ukuchithwa) Intsimbi yesinyithi isabela nge-asidi velisa igesi yehydrogen, ethi ngomatshini ixobule isikali se-oxide (isiphumo sokuxobula kumatshini) Ihydrogen yeathom eyenziwe yeathom inciphisa iioksidi zentsimbi zibe yioksayidi yeferrous ethanda ukusabela kwiasidi, kwaye emva koko isabela ngeeasidi eziza kususwa (ukunciphisa).
Ⅱ-Ukunyamezela/Ayisebenzi/Yenziwa kungasebenzi
1.- Umgaqo wePassivation: Indlela yokudlula inokuchazwa ngethiyori yefilimu ecekethekileyo, ebonisa ukuba ukudlula ngenxa yentsebenziswano phakathi kwesinyithi kunye nezinto ezixubene ne-oxidizing, ukuvelisa ifilimu enqabileyo kakhulu, exineneyo, egqunywe kakuhle, kunye ne-adsorbed ngokuqinileyo kumphezulu wesinyithi.Lo maleko wefilimu ukhona njengesigaba esizimeleyo, ngokuqhelekileyo i-compound ye-metals oxidized.Idlala indima ekwahluleni ngokupheleleyo isinyithi ukusuka kumbindi odlayo, ukuthintela isinyithi ekudibaneni ne-corrosion medium, ngaloo ndlela imisa ngokusisiseko ukunyibilika kwesinyithi kwaye yenze i-passive state ukuphumeza i-anti-corrosion effect.
2.- Izinto eziluncedo zokugqitha:
1) Xa kuthelekiswa neendlela zemveli zokutywina ngokwasemzimbeni, unyango lwe-passivation lunophawu lokunganyusi ngokupheleleyo ubukhulu bomsebenzi kunye nokutshintsha umbala, ukuphucula ukuchaneka kunye nexabiso elongezelelweyo lemveliso, ukwenza umsebenzi ube lula ngakumbi;
2) Ngenxa yobume bokungabikho kokusebenza kwenkqubo yokugqithisa, i-arhente yokugqithisa inokongezwa ngokuphindaphindiweyo kwaye isetyenziswe, okukhokelela kubomi obude kunye neendleko zezoqoqosho.
I-3) I-passivation ikhuthaza ukubunjwa kwe-oksijini ye-molecular structure passivation film kwi-metal surface, edibeneyo kwaye izinzile ekusebenzeni, kwaye ibe nefuthe lokuzilungisa emoyeni ngexesha elifanayo.Ke ngoko, xa kuthelekiswa nendlela yemveli yokugquma i-oyile ye-antirust, ifilimu ye-passivation eyenziwe yi-passivation izinzile kwaye iyamelana ne-corrosion.Uninzi lweempembelelo zentlawulo kwi-oxide layer zihambelana ngokuthe ngqo okanye ngokungathanga ngqo kwinkqubo ye-oxidation ye-thermal.Kwiqondo lokushisa le-800-1250℃, inkqubo ye-thermal oxidation isebenzisa ioksijini eyomileyo, ioksijini emanzi, okanye umphunga wamanzi inezigaba ezintathu eziqhubekayo.Okokuqala, ioksijini ekwiatmosfera yokusingqongileyo ingena kumaleko oksijidi owenziweyo, emva koko ioksijini isasazeke ngaphakathi ngesilicon dioxide.Xa ifikelela kwi-interface ye-Si02-Si, isabela kunye ne-silicon ukwenza i-silicon dioxide entsha.Ngale ndlela, inkqubo eqhubekayo ye-oksijini yokungena kwe-diffusion reaction iyenzeka, ibangela ukuba i-silicon kufutshane ne-interface iguquke ngokuqhubekayo ibe yi-silica, kwaye umaleko we-oxide ukhula usiya ngaphakathi kwi-silicon wafer ngesantya esithile.
Ⅲ- I-Phosphating
Unyango lwe-Phosphating yi-chemical reaction eyenza ifilimu (ifilimu ye-phosphating) phezu komhlaba. Inkqubo yonyango ye-phosphating isetyenziswa kakhulu kwiindawo zetsimbi, ngenjongo yokubonelela ngefilimu yokukhusela ukuhlukanisa isinyithi emoyeni kunye nokukhusela ukubola;Inokusetyenziswa njenge-primer kwezinye iimveliso ngaphambi kokupeyinta.Ngalo maleko wefilimu ye-phosphating, inokuphucula ukunamathela kunye nokumelana nokubola komgangatho wepeyinti, iphucule iipropati zokuhombisa, kwaye yenza ukuba ubuso bentsimbi bubonakale buhle ngakumbi.Inokudlala indima yokuthambisa kwezinye iinkqubo zokusebenza zentsimbi ezibandayo.
Emva konyango lwe-phosphating, i-workpiece ayiyi ku-oxidize okanye i-rust ixesha elide, ngoko ke ukusetyenziswa kwonyango lwe-phosphating kuninzi kakhulu kwaye kuyinkqubo yonyango yesinyithi esetyenziswa ngokuqhelekileyo.Iya isetyenziswa ngakumbi kumashishini afana neemoto, iinqanawa, kunye nokuveliswa koomatshini.
1.- Ukuhlelwa kunye nokusetyenziswa kwe-phosphating
Ngokwesiqhelo, unyango olungaphezulu luya kubonisa umbala owahlukileyo, kodwa unyango lwe-phosphating lunokusekwe kwiimfuno zokwenyani ngokusebenzisa iiarhente ezahlukeneyo zephosphating ukubonisa imibala eyahlukileyo.Kungenxa yoko le nto sihlala sibona unyango lwe-phosphating ngombala ongwevu, umbala okanye omnyama.
I-Iron phosphating: emva kwe-phosphating, umphezulu uya kubonisa umbala we-rainbow kunye noluhlaza okwesibhakabhaka, ngoko ikwabizwa ngokuba yi-phosphorus yombala.Isisombululo se-phosphating ikakhulu sisebenzisa i-molybdate njengento ekrwada, eya kwenza ifilimu yombala we-rainbow phosphating kumphezulu wezinto zentsimbi, kwaye ikwasetyenziselwa ukupeyinta umaleko ongezantsi, ukuze kufezekiswe ukuxhathisa komhlwa kwendawo yokusebenza kunye nokuphucula ukunamathela. yokwaleka komphezulu.
I-JINBAICHENG yifektri yentsimbi ehamba phambili e-China, sinokuvelisa kunye nokubonelela ngombhobho wentsimbi ongenamthungo, umbhobho odityanisiweyo, umbhobho we-saw, umbhobho we-gi kunye nomphezulu we-Acid-P.ickling, Ukunyamezela, kunye nePhosphating.Sinikezela ngenkonzo yokuthunga isiko kwaye siya kukunika esona sisombululo silungileyo kwiiprojekthi zakho.Qhagamshelana nathi ngexabiso elingcono:https://www.sdjbcmetal.com/steel-pipe-series/ imeyile:jinbaichengmetal@gmail.com okanye WhatsApp aphahttps://wa.me/18854809715
Ixesha lokuposa: Jul-12-2023