Ukufunyanwa kweziphene zepleyiti yentsimbi ye-ASTM-SA516Gr60Z35:
1. Umgangatho ophezulu we-SA516Gr60: Imigangatho ye-ASTM yaseMelika, i-ASME
2. I-SA516Gr60 yeyombhobho woxinzelelo oluphantsi lobushushu obuphantsi onepleyiti yentsimbi yekhabhoni
3. Ukwakheka kweekhemikhali ze-SA516Gr60
C≤0.30, Mn: 0.79-1.30, P≤0.035, S: ≤0.035, Si: 0.13-0.45.
4. Iimpawu zoomatshini ze-SA516Gr60
Amandla okutsalwa kwe-SA516Gr60 angama-70 amawaka eepawundi/i-intshi yesikwere, umxholo wento ephambili yi-C Mn Si ps control emisela ukusebenza kwayo. Ezinye izinto ezincinci. Ingcaciso esemgangathweni ye-Asme yeepleyiti zesinyithi sekhabhoni zeenqanawa zoxinzelelo lobushushu obuphakathi nobuphantsi.
5. Imeko yokuhanjiswa kwe-SA516Gr60
Ipleyiti yentsimbi ye-SA516Gr60 idla ngokunikezelwa ikwimeko yokuqengqeleka, ipleyiti yentsimbi inokwenziwa ilungelelaniswe okanye ikhululeke kuxinzelelo, okanye ilungelelaniswe kunye nomyalelo wokunciphisa uxinezeleko.
Ipleyiti yentsimbi ye-SA516Gr60 enobukhulu obungaphezulu kwe-40mm kufuneka ilungiswe.
Ngaphandle kokuba kuchazwe ngenye indlela yi-demander, ubukhulu bepleyiti yentsimbi ≤1.5in, (40mm), xa kukho iimfuno zokuqina okunezikhewu, kufuneka bube buqhelekileyo.
6. I-SA516Gr60 isetyenziselwa ukuvelisa isikhongozeli sokuwelda sekhoyili esinomgangatho omnye, isikhongozeli sokuwelda sekhoyili esinomgangatho omninzi, isikhongozeli sokunxiba esinezikhongozeli ezininzi kunye nezinye iintlobo ezimbini okanye ezintathu zezikhongozeli kunye neenqanawa zoxinzelelo oluphantsi. Isetyenziswa kakhulu kwi-petroleum, kushishino lweekhemikhali, kwisikhululo samandla, kwibhoyila nakwezinye iindawo, isetyenziswa ekwenzeni ii-reactors, ii-heat exchangers, ii-separators, iitanki ezingqukuva, iitanki zeoyile negesi, iitanki zegesi ezinyibilikisiweyo, iidrum zebhoyila, iisilinda zomphunga we-petroleum ezinyibilikisiweyo, imibhobho yamanzi enoxinzelelo oluphezulu kwisikhululo samandla e-hydropower, i-turbine volute kunye nezinye izixhobo kunye nezinto.
7. Xa i-austenite ipholiswa kancinci (ilingana nokupholisa i-furnace, njengoko kubonisiwe kwiFig. 2 V1), iimveliso zotshintsho zisondele kwisakhiwo se-equilibrium, oko kukuthi i-pearlite kunye ne-ferrite. Ngokunyuka kwesantya sokupholisa, oko kukuthi, xa i-V3>V2>V1, ukuphola okungaphelelanga kwe-austenite kuyanda kancinci kancinci, kwaye inani le-ferrite epholisiweyo liyancipha kancinci kancinci, ngelixa inani le-pearlite likhula kancinci kancinci, kwaye isakhiwo siba sincinci. Ngeli xesha, inani elincinci le-ferrite epholisiweyo lisasazwa kakhulu kumda wengqolowa.
8. Ngoko ke, ulwakhiwo lwe-v1 yi-ferrite+pearlite; ulwakhiwo lwe-v2 yi-ferrite+sorbite; ulwakhiwo oluncinci lwe-v3 yi-ferrite+troostite.
9. Xa izinga lokupholisa liyi-v4, inani elincinci le-ferrite yenethiwekhi kunye ne-troostite (ngamanye amaxesha inani elincinci le-bainite linokubonwa) liyatshintshwa, kwaye i-austenite iguqulwa ikakhulu ibe yi-martensite kunye ne-troostite; Xa izinga lokupholisa i-v5 lidlula izinga lokupholisa elibalulekileyo, intsimbi iguqulwa ngokupheleleyo ibe yi-martensite.
10. Utshintsho lwentsimbi ye-hypereutectoid lufana nolwentsimbi ye-hypoeutectoid, umahluko kukuba i-ferrite iqalela kwi-latter yokugqibela kwaye i-cementite iqalela kwi-latter yokuqala.
Ixesha lokuthumela: Disemba-14-2022
