Isingeniso se-Acid Pickling kanye ne-Passivation
Amapayipi ensimbi asetshenziswa kabanzi ezimbonini ezahlukene ngenxa yokuqina kwawo okuhle kakhulu, amandla, kanye nokumelana nokugqwala. Kodwa-ke, ukuqinisekisa ukusebenza kwawo okuhle kanye nobude bawo, kubalulekile ukusebenzisa izindlela zokwelapha ubuso eziphumelelayo njengokukha insimbi kanye nokudlulisa. Le bhulogi ihlose ukukhanyisa ukubaluleka kwalezi zinqubo ekuthuthukiseni ikhwalithi nokuqina kwamapayipi ensimbi.
Isigaba 1: Kuyini i-Steel Pickling?
Ukuqoqa insimbi kuyinqubo yamakhemikhali ehilela ukususwa kokungcola, njengokugqwala, isikali, nama-oxide, ebusweni bamapayipi ensimbi. Inhloso eyinhloko yokuqoqa insimbi ukuhlanza kahle ubuso bensimbi, ukuyilungiselela ukwelashwa okulandelayo kobuso njengokungasebenzisi insimbi.
Ngesikhathi senqubo yokukhuhla, amapayipi ensimbi acwiliswa esixazululweni esine-asidi, ngokuvamile esakhiwa yi-hydrochloric noma i-sulfuric acid. I-asidi isabela nokungcola, incibilikise bese ikususa ebusweni bensimbi, ishiye ukuphela okuhlanzekile nokubushelelezi.
Isigaba 2: Inqubo Yokukha:
Inqubo yokukha ihlanganisa izinyathelo eziningana ukuqinisekisa ukususwa okuphumelelayo kokungcola emapayipini ensimbi:
Isinyathelo 1: Ukususa amafutha: Ngaphambi kokukhipha amafutha, amapayipi ensimbi ayasuswa amafutha ukuze kususwe noma yimaphi amafutha, amafutha, noma ukungcola okukhona ebusweni. Lesi sinyathelo siqinisekisa ukuthi i-asidi ingaxhumana ngqo nokungcola okusebusweni bensimbi.
Isinyathelo 2: Ukucwiliswa kwe-asidi: Amapayipi asusiwe amafutha abe esecwiliswa esixazululweni se-asidi ye-pickling. Isikhathi sokucwiliswa sincike ezintweni ezifana nohlobo kanye nobukhulu bengqimba ye-oxide. Ngesikhathi sokucwiliswa, kubalulekile ukuqapha izinga lokushisa kanye nokuhlushwa kwe-asidi ukuze kufezwe imiphumela oyifunayo.
Isinyathelo 3: Ukuhlanza nge-asidi: Ngemva kwenqubo yokukhuhla, amapayipi ahlanzwa kahle ngamanzi ukuze kususwe noma iyiphi i-asidi esele. Lesi sinyathelo sibalulekile ukuvimbela noma yikuphi ukusabela kwamakhemikhali okungenzeka ngesikhathi sokwelashwa okulandelayo kobuso.
Isigaba 3: Ukubaluleka Kokuqoqwa Kwensimbi:
Inqubo yokuqoqa insimbi inikeza izinzuzo eziningi zamapayipi ensimbi:
1. Ukususwa Kokugqwala Nezikali: Ukuqoqwa kwe-pickle kususa ngempumelelo ukugqwala kanye nezikali ebusweni bensimbi. Lokhu kungcola kungonakalisa ubuqotho nokubukeka kwamapayipi, okuholela ekugugeni kwangaphambi kwesikhathi kanye nokwehluleka kwesakhiwo okungenzeka.
2. Ukumelana Nokugqwala Okuthuthukisiwe: Ngokususa ukungcola, ukukhahlela kudala indawo ehlanzekile nengenawo i-oxide, okwandisa ukumelana kwensimbi nokugqwala. Lokhu kubaluleke kakhulu kumapayipi asetshenziswa ezindaweni ezinzima noma abhekene namakhemikhali nomswakama.
3. Ukunamathela Okuthuthukisiwe: Ukunamathisela kulungisa ubuso bensimbi ngokudala ukuthungwa okuqinile, okuvumela ukumbozwa okulandelayo noma ukwelashwa ukuthi kunamathele kahle. Lokhu kuqinisekisa ukunamathela okungcono kopende noma ukumbozwa okuvikelayo, okufaka isandla ekuqineni kwesikhathi eside kwamapayipi ensimbi.
Isigaba 4: Ukuqonda Ukungathandi:
Ngemva kokukha amanzi, amapayipi ensimbi adlula enkambisweni yokuphasisa ukuze kwakheke ungqimba lwe-oxide oluvikelayo phezu komhlaba. Lokhu kufezwa ngokucwilisa amapayipi ku-ejenti yokuphasisa, ngokuvamile isixazululo esixutshwe ne-nitric acid.
I-Passivation yakha ifilimu elincane nelicacile le-chromium oxide ebusweni bensimbi, elisebenza njengesivikelo ekugqwaleni. Lolu ngqimba luphinde lusize ekugcineni ukubukeka kwensimbi kukhanga ngenkathi kunciphisa ingozi yokudaya noma ukushintsha kombala.
Isigaba 5: Izinzuzo Zokungaziphathi Kahle:
I-Passivation inikeza izinzuzo eziningana ezibalulekile zamapayipi ensimbi:
1. Ukumelana Nokugqwala: Ukwakheka kwengqimba ye-oxide evikelayo ngokusebenzisa i-passivation kuthuthukisa kakhulu ukumelana nokugqwala kwensimbi, okuqinisekisa isikhathi eside sokuphila kanye nezidingo zokunakekelwa ezincishisiwe.
2. Ukubukeka Kobuhle: Ukunyakaza kusiza ukugcina ukubukeka okubonakalayo kwamapayipi ensimbi ngokunciphisa amathuba okuba namabala ebusweni, ukushintsha kombala, noma amabala okugqwala. Lokhu kubaluleke kakhulu kumapayipi asetshenziswa ekwakhiweni kwezakhiwo noma ekuhlobiseni.
3. Impilo Nokuphepha: Ukudlula komoya kudala indawo engangeni makhemikhali, kunciphisa ingozi yokuphuma kwensimbi noma ukungcola, ikakhulukazi emapayipini asetshenziselwa ukuthutha amanzi okuphuza noma imikhiqizo yokudla.
Isiphetho:
Ekuphetheni, ukuqoqwa kwensimbi kanye nokufakwa kwe-passivation kuyizinyathelo ezibalulekile ezinqubweni zokwelashwa komhlaba kwamapayipi ensimbi. Ukususwa okuphumelelayo kokungcola ngokuqoqwa, kulandelwe ukwakheka kwengqimba ye-oxide evikelayo ekuqoqweni kwe-passivation, kuthuthukisa kakhulu ukuqina, ukumelana nokugqwala, kanye nokukhanga kobuhle kwamapayipi ensimbi. Ngokuqonda ukubaluleka kwalezi zinqubo, izimboni zingaqinisekisa ukuthi amapayipi ensimbi ahlala isikhathi eside futhi athembekile ezinhlotsheni ezahlukahlukene zokusebenza, ekugcineni okuholela ekusebenzeni okuthuthukisiwe kanye nokwaneliseka kwamakhasimende.
Isikhathi sokuthunyelwe: Mashi-30-2024
