Okwamanje,Ipayipi lesikwele elingenamthungo elingu-16Mnubuchwepheshe buvuthiwe kakhulu, futhi kunezindinganiso zomkhiqizo ezihambisanayo kanye nezinhlobo ezahlukene zobuchwepheshe bokusetshenziswa. Amasimu okusetshenziswa kwawo nawo abanzi kakhulu. Ngenxa yethonya lesimo sezulu kanye nendawo ezungezile, ubuso bepayipi lesikwele elingangenwa yi-16Mn buzogqwala ngemva kokusetshenziswa okuqhubekayo. Ungasusa kanjani amabala okugqwala kwamapayipi esikwele angangenwa yi-16Mn? Ngizokhuluma ngakho futhi ngikuhlaziyele.
1.Ukuze kufezwe umphumela omuhle kakhulu wokukhipha i-rust we-16Mn ongenamthungoipayipi eliyisikwele, kuyadingeka ukunquma ukuklwebheka ngokuya ngobunzima, izinga lokugqwala kokuqala, ubulukhuni bomphezulu obudingekayo kanye nohlobo lokumboza lwepayipi le-alloy, njenge-epoxy enezingqimba ezimbili, i-polyethylene enezingqimba ezimbili noma ezintathu. Ukuze kufezwe umphumela omuhle wokuklwebheka, kuyadingeka ukusebenzisa ukuklwebheka okuxubile kwesihlabathi sensimbi kanye ne-shot yensimbi. Njengoba ukuklwebheka kwensimbi kungaqinisa ubuso bensimbi, isihlabathi sensimbi singaklwebheka ubuso bensimbi.
2.Ibanga lokususa: uma kuqhathaniswa nenqubo yokwakha ye-epoxy, i-ethylene, i-phenolic nezinye izembozo zokulwa nokugqwala ezivame ukusetshenziswa kuma-16Mn angenamthungoamapayipi ayisikwele, imfuneko eyisisekelo ukwenza ubuso bamapayipi e-alloy bufinyelele ezingeni elimhlophe. Umkhuba ubonisile ukuthi izinga lokususa ukugqwala lingasusa cishe lonke izinga le-oxide, futhi ukungcola okufana nokugqwala kungahlangabezana ngokugcwele nezidingo zokunamathisela ze-anti-corrosion coating kanye nepayipi le-alloy. Ubuchwepheshe bokususa ukugqwala ngokufafaza bungenza ikhwalithi ifinyelele ezingeni elimhlophe eliseduze, futhi izindleko ziphansi.
3.Ngaphambi kokwelashwa ngokufafaza, isikali samafutha kanye ne-oxide sisusiwe ebusweni bepayipi lesikwele elingama-16Mn elingenamthungo. Kudingeka futhi kushiswe ku-40-60 ℃ ngesithando sokushisa ukuze kugcinwe ubuso bepayipi le-alloy bomile. Njengoba ubuso bepayipi le-alloy bungenawo amafutha kanye nokungcola okunye, umphumela wokususa ukugqwala ungathuthukiswa. Ngaphezu kwalokho, ubuso bepayipi le-alloy elomile buwusizo futhi ekuhlukaniseni i-steel shot, isihlabathi sensimbi, ukugqwala kanye ne-oxide scale, okuzokwenza ipayipi le-alloy ngemva kokususwa kokugqwala.
4.Ukuze kutholakale ukuhlanzeka okufanayo kanye nokusatshalaliswa kobulukhuni kwepayipi lesikwele elingama-16Mn elingenamthungo, ucwaningo kanye nokusungulwa kobukhulu bezinhlayiya ezihuquzelayo kanye nesilinganiso kubaluleke kakhulu. Ngenxa yokuthi ubulukhuni bukhulu kakhulu, ungqimba olulwa nokugqwala kulula ukuba luncane esicongweni somugqa we-anchor, futhi ngenxa yokuthi umugqa we-anchor ujule kakhulu, amabhamuza akheka kalula enkambisweni yokulwa nokugqwala, okuthinta kakhulu ukusebenza kongqimba olulwa nokugqwala.
Ingqikithi yokwelashwa kokuqinisa ukuguga iwukuba kususwe izinhlayiya eziningi ezinhle kakhulu ezivela esixazululweni esiqinile esigcwalisiwe ukuze kwakheke indawo efanayo encane yokucebisa ama-athomu ancibilikayo. Ukuze kuqinisekiswe ukuthi akuncibiliki kakhulu esixazululweni esiqinile lapho kushiswa ishubhu lesikwele elingagxilile elingu-16Mn, bese kuba nesilinganiso sokuncibilika ekupholiseni okusheshayo, ukuze i-solute eningi eyethulwe sekwephuzile yakhe isixazululo esiqinile esigcwalisiwe kakhulu, ukucima kudinga ukwenziwa ngaphambi kokwelashwa kokuguga. Enqubweni yokwelashwa kokushisa yeshubhu lesikwele elingagxilile elingu-16Mn, izinga lokushisa lokushisa kufanele lilawulwe ngokuqinile ngesikhathi sokwelashwa kokuguga ukuze i-solute incibilike ibe yisisombululo esiqinile ngangokunokwenzeka ngaphandle kokuncibilikisa i-alloy.
Isikhathi sokuthunyelwe: Septhemba 14-2022
