Ukuthola iphutha lepuleti lensimbi le-ASTM-SA516Gr60Z35:
1. Izinga eliphezulu le-SA516Gr60: I-American ASTM, amazinga e-ASME
2. I-SA516Gr60 ingeyomkhumbi wengcindezi yokushisa ephansi enepuleti le-carbon steel
3. Ukwakheka kwamakhemikhali kwe-SA516Gr60
C≤0.30, Mn: 0.79-1.30, P≤0.035, S: ≤0.035, Si: 0.13-0.45.
4. Izakhiwo zemishini ye-SA516Gr60
Amandla e-SA516Gr60 aqinile angamaphawundi ayizinkulungwane ezingu-70/intshi yesikwele, okuqukethwe kwesici esiyinhloko ukulawulwa kwe-C Mn Si ps kunquma ukusebenza kwayo.Amanye ama-elementi alandelela kancane.Ukucaciswa Okujwayelekile kwe-Asme kwamapuleti ensimbi ekhabhoni yemikhumbi yomfutho ophakathi nendawo nophansi.
5. Isimo sokudiliva se-SA516Gr60
I-SA516Gr60 steel plate ivamise ukunikezwa isesimweni sokugingqika, i-steel plate ingabuye ibe yejwayelekile noma ikhululeke ekucindezelekeni, noma i- normalizing kanye ne-oda lokukhulula ingcindezi.
Ugqinsi lwe-SA516Gr60 > ipuleti lensimbi elingu-40mm kufanele libe yinto evamile.
Ngaphandle uma kucaciswe ngenye indlela umuntu ofuna ngamandla, ubukhulu bepuleti lensimbi elingu-≤1.5in, (40mm), lapho kunezidingo zokuqina ezinoshicilelo, kufanele bube bujwayelekile.
6. I-SA516Gr60 isetshenziselwa ukwakha isiqukathi sokushisela ikhoyili esinongqimba olulodwa, isiqukathi sokushisela ikhoyili esinemikhono eminingi esishisayo, isiqukathi esinezingqimba eziningi zokugqoka nezinye izinhlobo ezimbili nezintathu zeziqukathi kanye nemikhumbi yomfutho wezinga lokushisa eliphansi.Isetshenziswa kakhulu ku-petroleum, embonini yamakhemikhali, esiteshini samandla kagesi, kubhayela neminye imisebenzi, esetshenziswa ekwakheni ama-reactors, izishintshi zokushisa, izihlukanisi, amathangi ayindilinga, amathangi kawoyela negesi, amathangi egesi axutshwe notshwala, imigqomo yokubhayela, amasilinda omusi we-petroleum afakwe uketshezi, isiteshi samandla kagesi. amapayipi amanzi anomfutho ophezulu, i-turbine volute nezinye izinto zokusebenza nezingxenye..
7. Uma i-austenite ipholile kancane (okulingana nokupholisa kwesithando somlilo, njengoba kuboniswe ku-Fig. 2 V1), imikhiqizo yokuguqulwa iseduze nesakhiwo sokulinganisa, okuyi-pearlite ne-ferrite.Ngokunyuka kwezinga lokupholisa, okungukuthi, lapho i-V3> V2> V1, ukupholisa okuphansi kwe-austenite kukhula kancane kancane, futhi inani le-ferrite enemvula liba lincane futhi lincane, kuyilapho inani le-pearlite likhula kancane kancane, futhi isakhiwo siba ngcono.Ngalesi sikhathi, inani elincane le-ferrite elinemvula lisakazwa kakhulu emngceleni wokusanhlamvu.
8. Ngakho-ke, isakhiwo se-v1 yi-ferrite+pearlite;Isakhiwo se-v2 yi-ferrite+sorbite;I-microstructure ye-v3 yi-ferrite+troostite.
9. Uma izinga lokupholisa liyi-v4, inani elincane le-ferrite yenethiwekhi kanye ne-troostite (ngezinye izikhathi inani elincane le-bainite lingabonakala) liyancishiswa, futhi i-austenite iguqulwa ngokuyinhloko ibe i-martensite ne-troostite;Uma izinga lokupholisa i-v5 lidlula izinga lokupholisa elibalulekile, insimbi iguqulwa ngokuphelele ibe yi-martensite.
10. Ukuguqulwa kwensimbi ye-hypereutectoid kufana nalokho kwensimbi ye-hypoeutectoid, ngomehluko wokuthi i-ferrite idlula kuqala ekugcineni kanye ne-cementite ekhuphuka kuqala ekuqaleni.
Isikhathi sokuthumela: Dec-14-2022
