Intshayelelo ye-Acid Pickling kunye ne-Passivation
Iipayipi zentsimbi zisetyenziswa kakhulu kumashishini ahlukeneyo ngenxa yokuqina kwazo okuhle, amandla, kunye nokumelana nokugqwala. Nangona kunjalo, ukuqinisekisa ukusebenza kwazo kakuhle kunye nobude bazo, kubalulekile ukusebenzisa iindlela ezisebenzayo zonyango lomphezulu ezifana nokuqhola intsimbi kunye nokudlulisa i-passivation. Le bhlog ijolise ekukhanyiseni ukubaluleka kwezi nkqubo ekuphuculeni umgangatho kunye nokuqina kweepayipi zentsimbi.
Icandelo 1: Yintoni iSteel Pickling?
Ukucoca ngentsimbi yinkqubo yeekhemikhali equka ukususwa kokungcola, okufana nomhlwa, isikali, kunye nee-oxides, kumphezulu weemibhobho zentsimbi. Injongo ephambili yokucoca ngentsimbi kukucoca umphezulu wentsimbi kakuhle, ukuyilungiselela unyango olulandelayo lomphezulu olufana nokudlulisa inkunkuma.
Ngexesha lenkqubo yokucola, imibhobho yentsimbi ifakwa kwisisombululo esine-asidi, esidla ngokuba ne-hydrochloric okanye i-sulfuric acid. I-asidi isabela kunye nokungcola, inyibilike kwaye isuse kumphezulu wentsimbi, ishiye isiphelo sicocekile kwaye sigudile.
Icandelo lesi-2: Inkqubo yokuKheka:
Inkqubo yokukha ibandakanya amanyathelo aliqela ukuqinisekisa ukususwa okungcolileyo kwimibhobho yentsimbi ngokufanelekileyo:
Inyathelo 1: Ukususa amafutha: Ngaphambi kokuba kugalelwe, imibhobho yentsimbi iyasuswa amafutha ukuze kususwe nayiphi na ioyile, amafutha, okanye ukungcola okukhoyo kumphezulu. Eli nyathelo liqinisekisa ukuba iasidi inokunxibelelana ngokuthe ngqo nokungcola okukumphezulu wesinyithi.
Inyathelo lesi-2: Ukuntywiliselwa kwi-asidi: Imibhobho ecociweyo emva koko intywiliselwa kwisisombululo se-asidi ye-pickling. Ubude bokuntywiliselwa buxhomekeke kwizinto ezifana nohlobo kunye nobukhulu bomaleko we-oxide. Ngexesha lokuntywiliselwa, kubalulekile ukujonga ubushushu kunye noxinzelelo lwe-asidi ukuze kufezekiswe iziphumo ezifunwayo.
Inyathelo lesi-3: Ukuhlamba nge-asidi: Emva kwenkqubo yokucola, imibhobho ihlanjwa kakuhle ngamanzi ukuze kususwe nayiphi na i-asidi eseleyo. Eli nyathelo libalulekile ukuthintela naziphi na iimpembelelo zeekhemikhali ezinokwenzeka ngexesha lonyango olulandelayo lomphezulu.
Icandelo 3: Ukubaluleka kwePickling yentsimbi:
Inkqubo yokukhetha intsimbi ineengenelo ezininzi kwiipayipi zentsimbi:
1. Ukususwa komhlwa kunye nezikali: Ukuqhola kususa umhlwa kunye nezikali kumphezulu wentsimbi ngempumelelo. Ezi zingcolileyo zingonakalisa ukuthembeka kunye nokubonakala kwemibhobho, nto leyo ekhokelela ekugugeni kwangethuba kunye nokusilela kwesakhiwo.
2. Ukumelana Nokugqwala Okuphuculweyo: Ngokususa ukungcola, ukugalela kudala umphezulu ococekileyo nongena-oxide, okwandisa ukumelana kwentsimbi nokugqwala. Oku kubaluleke kakhulu kwiipayipi ezisetyenziswa kwiindawo ezinzima okanye ezivezwe kwiikhemikhali nakumswakama.
3. Ukuncamathelisa Okuphuculweyo: Ukuqhotsa kulungisa umphezulu wentsimbi ngokwenza uburhabaxa, okuvumela ukuba ukugqunywa okanye unyango olulandelayo lunamathele ngokufanelekileyo. Oku kuqinisekisa ukunamathela okungcono kwepeyinti ezikhuselayo okanye ukugqunywa, okufaka isandla ekuqineni kwexesha elide kwemibhobho yentsimbi.
Icandelo 4: Ukuqonda i-Passivation:
Emva kokucola, imibhobho yentsimbi idlula kwinkqubo yokuphaza ukuze yenze umaleko we-oxide okhuselayo phezu komphezulu. Oku kufezekiswa ngokuntywilisela imibhobho kwi-arhente yokuphaza, ngokuqhelekileyo isisombululo se-nitric acid esixutyiweyo.
I-Passivation yenza ifilimu encinci, ecacileyo ye-chromium oxide kumphezulu wentsimbi, esebenza njengomqobo ekuthinteleni ukugqwala. Olu maleko lukwanceda ekugcineni ubuhle bentsimbi ngelixa kunciphisa umngcipheko wokudaya okanye ukutshintsha kombala.
Icandelo 5: Iingenelo zePassivation:
I-Passivation inikezela ngeenzuzo ezibalulekileyo ezininzi kwiipayipi zentsimbi:
1. Ukumelana Nokugqwala: Ukwakheka komaleko we-oxide okhuselayo ngokusebenzisa i-passivation kuphucula kakhulu ukumelana nokugqwala kwentsimbi, kuqinisekisa ubomi obude kunye nokunciphisa iimfuno zokugcinwa.
2. Ubuhle: Ukukhanya okuthambileyo kunceda ukugcina inkangeleko ebonakalayo yemibhobho yentsimbi ngokunciphisa amathuba okuba kubekho amabala omphezulu, ukutshintsha kombala, okanye amabala okugqwala. Oku kubaluleke kakhulu kwimibhobho esetyenziswa kwizakhiwo okanye kwimisebenzi yokuhombisa.
3. Impilo noKhuseleko: Ukukhupha umoya kudala umphezulu ongasebenziyo ngamakhemikhali, kunciphisa umngcipheko wokuvuza kwesinyithi okanye ukungcola, ngakumbi kwimibhobho esetyenziselwa ukuhambisa amanzi okusela okanye iimveliso zokutya.
Isiphelo:
Ukuqukumbela, ukucola intsimbi kunye nokukhupha isinyithi ngamanyathelo abalulekileyo kwiinkqubo zonyango lomphezulu kwiipayipi zentsimbi. Ukususwa okusebenzayo kokungcola ngokucola, kulandelwa kukwenziwa komaleko we-oxide okhuselayo ekucoleni, kuphucula kakhulu ukuqina, ukumelana nokugqwala, kunye nokuthandeka kobuhle beepayipi zentsimbi. Ngokuqonda ukubaluleka kwezi nkqubo, amashishini anokuqinisekisa ukuba iipayipi zentsimbi zihlala ixesha elide kwaye zithembekile kwizicelo ezahlukeneyo, ekugqibeleni zikhokelela ekusebenzeni okuphuculweyo kunye nokwaneliseka kwabathengi.
Ixesha leposi: Matshi-30-2024
