Igesi yemvelo ingamandla ahlanzekile, asebenza kahle, afaneleka futhi asezingeni eliphezulu kanye nezinto zokusetshenziswa zamakhemikhali.Ukuxhashazwa nokusetshenziswa kwayo kunezinzuzo ezibalulekile kwezomnotho, kwezenhlalo nezemvelo.Ngokuqhubeka nokuthuthuka kwegesi yemvelo yaseChina, imboni yegesi yemvelo izobhekana namathuba amasha, nayo ibhekene nezinselelo ezintsha.Ukuguqulwa kwenethiwekhi yamapayipi okuqala noma ukubeka inethiwekhi yamapayipi amasha kumele kugcizelele ukuphepha, kuqede yonke ingozi.Njengoba kubonakala kunethiwekhi yamapayipi ekhaya naphesheya, imbangela yengozi, edalwe izingozi ezilimazayo zomuntu zibangele umonakalo wokugqwala kwepayipi (okuhlanganisa nokuqhekeka kwe-stress corrosion) endaweni yesibili.Lokhu kwakamuva kuvame ukuba nzima ukukubona, okuvamise ukunganakwa, ukugqwala kwamapayipi ngokungangabazeki kufanele kukhulunywe nge-ajenda ebalulekile.

Uhlelo lokusebenza oluphezulu lwe-anticorrosion coating
Izindlela eziyinhloko zokugqwala kwepayipi legesi yemvelo ngaphansi kwasekhaya nezamazwe ngamazwe zifanelekile ngokusekelwe epayipini lendawo, isimo sendawo, izimo zejoloji, ukumbozwa okunezelwa ukuvikelwa kwe-cathodic.Upende osetshenzisiwe: i-petroleum asphalt, i-coal tar koqweqwe lwawo, upende we-epoxy.Iphayiphi elingcwatshwe ekhaya le-anti-corrosion elivame ukusetshenziswa ngopende we-asphalt we-petroleum.Uma imvelo yomhlabathi, i-microbial, kungekho ukuphazamiseka okukhulu ezitshalweni ezinezimpande ezijulile, kuthathwa njengongqimba olungabizi kakhulu lokulwa nokugqwala.Izakhiwo zayo zokugeleza azifanelekile endaweni yokushisa ephezulu kanye nokungcoliswa okukhulu kwemvelo ngesikhathi sokwakhiwa, ukusetshenziswa kwayo kubonise ukwehla.Ngokombono wembulunga yonke, osetshenziswa kakhulu uma i-push coal tar koqweqwe lwawo kanye nopende we-epoxy.Eyangaphambili inokugqwala okunamandla okulwa namagciwane, ukungena kwezimpande ezilwa nezitshalo, ukumuncwa kwamanzi aphansi, ukumelana ne-cathodic delamination, isibopho esongwe esiqinile esiqinile odongeni, kunezinzuzo ezisobala zokusetshenziswa epayipini likawoyela negesi I-United States, Russia , ekusetshenzisweni kwezinga elikhulu.

Ukuthuthukiswa kwenqubo yokwelashwa kwangaphambili kwepayipi elimboza indawo yangaphambili
Ikhwalithi yokulondoloza incike ezingeni lokukhetha indlela yokwelashwa kwangaphambili eboshiwe.Ukugqwala kwendabuko okwehlisa amafutha Umthetho wesikhathi kanye nokungcoliswa kwabasebenzi kunzima ukuqinisekisa ikhwalithi.Eminyakeni yamuva ukuthambekela ukusebenzisa izinga lokushisa eliphezulu unglazed umthetho degreasing, ipayipi ukulayisha esithandweni ngokukhethekile at 350 ~ 400 ℃ kulekelelwa komoya, ukwahlukanisa 3 ~ 4 h, uwoyela washisa isiqinisekiso degreasing izinga.Imishini yokuchama esikhundleni sendlela yendabuko yokukhetha.Le ndlela iwukusetshenziswa komoya ocindezelwe ukuthwala isibhamu sensimbi (noma isihlabathi) ukuze kwakheke ukugeleza kwesivinini esikhulu sokusebenza komthelela oqinile endaweni yensimbi ngombhobho wesibhamu ukuze kukhishwe uwoyela noma i-oxide.Igqwala ngokuphelele, kodwa futhi ithuthukisa ukukhahlamezeka kwendawo, ukukhulisa indawo yokuxhumana yodonga kanye nesembozo (cishe izikhathi ezingama-20), kanye nokwenza ngcono amandla ebhondi enamathelayo, kungavinjelwa ngempumelelo ukubola okujulile.