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 irhasi yehidrojeni, ethi ngomatshini ixobula isikali seoxide (isiphumo sokuxobula kumatshini) Ihydrogen eveliswayo yeathom yeathom yehlisa iioksidi zentsimbi zibe yiferrous oxides eqheleneyo. kwi-asidi reactions, kwaye emva koko isabela ngee-asidi 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 komhlaba.
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