I-valve yegesi, izinyathelo zokuhlanza isilinda i-valve ejwayelekile ye-carbon steel ekha izimo zobuchwepheshe

I-valve yegesi, izinyathelo zokuhlanza isilinda i-valve evamile i-carbon steel ekha izimo zobuchwepheshe Ukuhlanzwa kwe-valve yegesi nesilinda sensimbi kuyinto eyodwa okufanele yenziwe ngaphambi kokuhlanganiswa kwezingxenye nezingxenye zevalvu. Le nqubo ingaqedwa ngezinyathelo ezimbalwa eziqinile. Uma kukhona ubudedengu kulezi zinyathelo, kungenzeka kakhulu kubangele izingozi ezifihliwe ekusetshenzisweni kwesikhathi esizayo. Ukuhlanzwa kwe-valve yegesi kanye ne-valve yesilinda yensimbi yinto eyodwa okufanele yenziwe ngaphambi kokuhlanganiswa kwezingxenye kanye nezingxenye ze-valve. Le nqubo ingaqedwa ngezinyathelo ezimbalwa eziqinile. Uma kukhona ubudedengu kulezi zinyathelo, kungenzeka kakhulu kubangele izingozi ezifihliwe ekusetshenzisweni kwesikhathi esizayo. Izinqubo zokuhlanza ama-valve egesi namasilinda Izinyathelo eziqondile: 1. Ngokwezidingo zokucubungula, ezinye izingxenye zidinga ukupholishwa ngaphandle kokucubungula ama-burrs ebusweni Zonke izingxenye zikhishwa amafutha 3. I-Pickling passivation yenziwa ngemva kokukhishwa, futhi i-ejenti yokuhlanza ayikwenzi aqukethe phosphorus 4 Ngemva pickling passivation, hashaza ngamanzi ahlanzekile, kungabikho insalela yezidakamizwa, carbon steel izingxenye yeka lesi sinyathelo 5 Yomisa izingxenye ngayinye ngayinye ngendwangu engalukiwe. Ungashiyi ingaphezulu lezingxenye ngoboya bocingo noma uphephethe nge-nitrogen ehlanzekile 6 Sula izingxenye ngayinye ngayinye ngendwangu engalukiwe noma ngephepha lokuhlunga elinemba elingcoliswe ngotshwala obuhlanzekile obuhlaziyayo kuze kungabibikho umbala ongcolile. Funda lezi zinyathelo ezingenhla, ngikholwa ukuthi uzwisisile, izinga, izindinganiso zokuphepha ze-valve yebhodlela, kuzo zonke izixhumanisi ukwenza ngokucophelela, ngoba kungale ndlela kuphela ukuphepha komsebenzisi kanye nebhizinisi lamakhasimende elinesibopho! Izimo zobuchwepheshe ze-carbon steel forgings yama-valve ajwayelekile, ama-flange, ukufakwa kwamapayipi nezinye izimfuneko ze-compression carbon steel forgings, izindlela zokuhlola, imithetho yokuhlola, izidingo zoku-oda, amamaki nezitifiketi zekhwalithi. Ingot izoba neziphetho ezanele zokusika ukuvimbela amaphutha ayingozi (okubandakanya ukuncipha, ukuhlukaniswa, ukugoqa, njll.). I-Forging izoqinisekisa ukuguquguquka okuphelele kwama-forging ukuze kuhlangatshezwane nezidingo zokuklama kanye nezobuchwepheshe. Ngesikhathi sokubumba, ama-forging kufanele aqinisekiswe ukuthi apholile kancane njengoba edlula ebangeni lokushisa lokushintsha kwesigaba. Ngemuva kokuthi i-forging seyakhiwe ekugcineni, kufanele ipholile ibe ngaphansi kuka-500 ℃ ngaphambi kokuba ukwelashwa okushisiwe okucacisiwe kungenziwa. Ububanzi baleli zinga bucacisa izidingo, izindlela zokuhlola, imithetho yokuhlola, izidingo zoku-oda, amamaki nezitifiketi zekhwalithi zokuhlanganisa okujwayelekile kwe-carbon steel forging njengama-valve, ama-flange nokufakwa kwamapayipi. Leli zinga lisebenza ekucindezelweni okujwayelekile kwe-carbon steel forgings njengama-valve, ama-flange nokufakwa kwamapayipi (ngemuva kwalokhu okubizwa ngokuthi ama-forging). Ama-forging angewona acindezelwayo angenziwa ngereferensi. Idokhumenti yereferensi evamile Le mibhalo elandelayo ihlanganisa imigomo yaleli zinga ngokubhekisela kuZinga lokhuni. Zonke izichibiyelo ezalandela (ngaphandle kokuphambuka) noma izichibiyelo kumadokhumenti ashiwo ngesikhathi sesichasiselo azisebenzi kuleli zinga. Nokho, abathintekayo esivumelwaneni ngaphansi kwe-wood Standard bayakhuthazwa ukuthi baphenye ukusetshenziswa kwalezi zinguqulo zemibhalo. Ezithenjwa ezingenasuku, izinguqulo zazo ziyasebenza kuleli zinga. I-GB 150 yensimbi yomkhumbi wokucindezela i-GB/T 228 Metallic materials -- Indlela yokuhlola eqinile ezingeni lokushisa legumbi (GB/T 228-2000,eqv ISO 6892:1998) GB/T 229 Metal Charpy notch yokuhlola umthelela wendlela yokuhlola ubulukhuni beMetallic Brinell -- Ingxenye 1: Izindlela zokuhlola (GB/ T231.1-2002,eqv ISO 6506-1,1999) GB/T669 mass carbon structural steel Isikhundla sokuthatha isampula nokulungiselelwa kwesampula kokuhlolwa kwezakhiwo eziwumshini ze-GB/T2975 Steel and Steel Products (GB/T 2975 -1998,eqv ISO 377:1997) GB/T 13927 Ukuhlolwa kokucindezela kwevalvu okujwayelekile (GB/T 13927-1992.neq ISO 5208:1982) JB 4725 umkhumbi wokucindezela onekhabhoni kanye nensimbi ephansi ye-alloy forgings JB 4730 umkhumbi wokucindezela we-ASTM A105 / A1055:2003 Izinsimbi Zensimbi Yekhabhoni Izimfuneko Zezingxenye Zamapayipi Izimfuneko Ezivamile Ukukhethwa kwempahla yokubumba ngokuvumelana nezinhlinzeko zeThebula 1, ezinye izinto ezinezici ezifanayo zingasetshenziswa esikhundleni salokho. Ithebula 1 Ibanga lezinto ezibonakalayo Insimbi yokubumba kufanele ibe yinsimbi. Ingot izoba neziphetho ezanele zokusika ukuvimbela amaphutha ayingozi (okubandakanya ukuncipha, ukuhlukaniswa, ukugoqa, njll.). I-Forging izoqinisekisa ukuguquguquka okuphelele kwama-forging ukuze kuhlangatshezwane nezidingo zokuklama kanye nezobuchwepheshe. Ngesikhathi sokubumba, ama-forging kufanele aqinisekiswe ukuthi apholile kancane njengoba edlula ebangeni lokushisa lokushintsha kwesigaba. Ngemuva kokuthi i-forging seyakhiwe ekugcineni, kufanele ipholile ibe ngaphansi kuka-500 ℃ ngaphambi kokuba ukwelashwa okushisiwe okucacisiwe kungenziwa. Ukwelashwa kokushisa Ama-Forging anengcindezi encane eyedlula i-PN20 kanye nama-flange angenawo isigaba sokucindezela kufanele aphathwe ngokushisa. Izindlela zokwelashwa kokushisa ziyi-annealing, normalizing, noma normalizing kanye nokushisa. 25. Ukushisa kokushisa kokushisa kwensimbi ye-A105 kungabhekisela kumanani eThebula 2. Ezinye izinto zizobhekisela kumazinga afanele. Ithebula 2 Izinga lokushisa lokwelashwa okushisa Ukwakheka kwamakhemikhali Ukwakheka kwamakhemikhali kuzohlangabezana nezidingo zeThebula 3. Ukwakheka kwamakhemikhali kwezinye izinto ngokuvumelana nemithetho ye-GB/T 699. Ithebula 3 Ukwakheka Kwekhemikhali Uma okuqukethwe kwekhabhoni eshiwo kungaphansi kuka-0.35%, kukho konke ukuncipha kokuqukethwe kwekhabhoni ngo-0.01I, okuqukethwe kwe-manganese okungu-0.06% kuvunyelwe kwengezwe kokunqunyiwe kwe-manganese engu-1.05% kuze kube kukhulu kuno-1.35%. Isamba sokuqukethwe kwe-Cu,Ni,Cr ne-Mo.v akufanele sidlule u-1.0% Cr futhi isamba sokuqukethwe kwe-Mo akufanele sidlule u-0.32%