Ukwethulwa kwe-Acid Pickling and Passivation
Amapayipi ensimbi asetshenziswa kakhulu ezimbonini ezahlukahlukene ngenxa yokuqina kwawo okuhle kakhulu, amandla, nokungagqwali kwawo.Kodwa-ke, ukuze kuqinisekiswe ukusebenza kwazo okuphelele nokuphila isikhathi eside, kubalulekile ukusebenzisa izindlela zokwelapha ezisebenzayo ezifana nokucotshwa kwensimbi nokudlula.Le bhulogi ihlose ukuveza ukubaluleka kwalezi zinqubo ekuthuthukiseni ikhwalithi nokuqina kwamapayipi ensimbi.
Isigaba 1: Kuyini Ukukha insimbi?
I-Steel pickling inqubo yamakhemikhali ehlanganisa ukukhishwa kokungcola, njengokugqwala, isikali, nama-oxides, ebusweni bamapayipi ensimbi.Inhloso eyinhloko yokukhetha ukuhlanza ubuso bensimbi kahle, ukuyilungiselela ukwelapha okungaphezulu okufana nokudlula.
Phakathi nenqubo yokukhetha, amapayipi ensimbi acwiliswa kwisisombululo esimuncu, ngokuvamile esihlanganisa i-hydrochloric noma i-sulfuric acid.I-asidi ihlangana nokungcola, ikuncibilikise futhi iwasuse endaweni yensimbi, ishiye isiphetho esihlanzekile nesibushelelezi.
Isigaba 2: Inqubo Yokukha:
Inqubo yokukhetha ihlanganisa izinyathelo ezimbalwa zokuqinisekisa ukukhishwa okusebenzayo kokungcola emapayipini ensimbi:
Isinyathelo 1: Ukususa amafutha: Ngaphambi kokukhetha, amapayipi ensimbi ayakhishwa ukuze kukhishwe amafutha, amafutha, noma ukungcola okukhona ngaphezulu.Lesi sinyathelo siqinisekisa ukuthi i-asidi ingakwazi ukuxhumana ngokuqondile nokungcola endaweni yensimbi.
Isinyathelo sesi-2: Ukucwiliswa kwe-Acid: Amapayipi asuliwe abe esecwiliswa kwikhambi le-asidi yokukha.Ubude besikhathi sokucwiliswa buncike ezintweni ezifana nohlobo nokujiya kongqimba lwe-oxide.Ngesikhathi sokucwiliswa, kubalulekile ukuqapha izinga lokushisa nokugxila kwe-asidi ukuze kuzuzwe imiphumela oyifunayo.
Isinyathelo sesi-3: Hlanza i-Acid: Ngemva kwenqubo yokukhetha, amapayipi ahlanzwa kahle ngamanzi ukuze kukhishwe noma iyiphi i-asidi esele.Lesi sinyathelo sibalulekile ukuze kuvinjwe noma yikuphi ukusabela kwamakhemikhali okungenzeka ngesikhathi sokwelashwa okulandelayo.
Isigaba 3: Ukubaluleka Kokukhetha Insimbi:
Inqubo yokukhetha insimbi inikeza izinzuzo eziningi zamapayipi ensimbi:
1. Ukususa Ukugqwala Nesikali: Ukuchusha kususa ukugqwala nesikali endaweni yensimbi.Lokhu kungcola kungaphazamisa ubuqotho nokubukeka kwamapayipi, okuholela ekugugeni ngaphambi kwesikhathi kanye nokwehluleka okungenzeka kwesakhiwo.
2. Ukumelana Nokugqwala Okuthuthukisiwe: Ngokususa ukungcola, ukucosha kudala indawo ehlanzekile nengenayo i-oxide, okwenza insimbi imelane nokugqwala.Lokhu kubaluleke kakhulu kumapayipi asetshenziswa ezindaweni ezinokhahlo noma achayeke kumakhemikhali nomswakama.
3. Ukunamathela Okuthuthukisiwe: I-Pickling ilungiselela ingaphezulu lensimbi ngokudala ukuthungwa okuqinile, okuvumela okunamathelayo okulandelayo noma ukwelapha ukuthi kubambelele ngokuphumelelayo.Lokhu kuqinisekisa ukunamathela okungcono kwamapende okuzivikela noma ama-coatings, okufaka isandla ekuqina kwesikhathi eside kwamapayipi ensimbi.
Isigaba 4: Ukuqonda I-Passivation:
Ngemuva kokukhetha, amapayipi ensimbi enza inqubo yokudlula ukuze enze isendlalelo se-oxide esivikelayo ebusweni.Lokhu kufezwa ngokucwilisa amapayipi ku-ejenti edlulayo, ngokuvamile isisombululo esihlanjululwe se-nitric acid.
I-passivation yakha ifilimu elincanyana, elisobala le-chromium oxide ebusweni bensimbi, esebenza njengesithiyo ngokumelene nokugqwala.Lesi sendlalelo siphinde sisize ekugcineni ukukhanga kobuhle bensimbi kuyilapho kunciphisa ingcuphe yokuba namabala noma ukushintsha kombala.
Isigaba 5: Izinzuzo Zokudlula:
I-Passivation inikeza izinzuzo ezimbalwa ezibalulekile zamapayipi ensimbi:
1. Ukumelana Nokugqwala: Ukwakheka kongqimba lwe-oxide evikelayo ngokudlula kuthuthukisa ngokuphawulekayo ukumelana nokugqwala kwensimbi, kuqinisekisa ukuphila okude kanye nezimfuneko zokunakekela ezincishisiwe.
2. Isikhalazo Sobuhle: I-Passivation isiza ukugcina ukubonakala okubonakalayo kwamapayipi ensimbi ngokunciphisa amathuba okuba namabala angaphezulu, ukushintsha kombala, noma amabala okugqwala.Lokhu kubaluleke kakhulu kumapayipi asetshenziswa ekwenziweni kwezakhiwo noma zokuhlobisa.
3. Impilo Nokuphepha: I-passivation idala indawo engasebenzi ngamakhemikhali, enciphisa ingozi yokucwiliswa kwensimbi noma ukungcola, ikakhulukazi kumapayipi asetshenziselwa ukudlulisa amanzi okuphuza noma imikhiqizo yokudla.
Isiphetho:
Sengiphetha, insimbi pickling kanye passivation yizinyathelo ezibalulekile ezinqubweni ukwelapha surface amapayipi ensimbi.Ukususwa okusebenzayo kokungcola nge- pickling, okulandelwa ukwakheka kongqimba lwe-oxide evikelayo ku-passivation, kukhulisa kakhulu ukuqina, ukumelana nokugqwala, kanye nokukhanga kobuhle kwamapayipi ensimbi.Ngokuqonda ukubaluleka kwalezi zinqubo, izimboni zingaqinisekisa isikhathi eside nokuthembeka kwamapayipi ensimbi ekusetshenzisweni okuhlukahlukene, ekugcineni okuholela ekusebenzeni okuthuthukisiwe nokwaneliseka kwamakhasimende.
Isikhathi sokuthumela: Mar-30-2024