Ipayipi lensimbi ye-ASTM A1045ngokuvamile sisebenza endabeni yepayipi lensimbi engenamthungo.Ipayipi lensimbi elingenamthungo lihlukaniswe laba yi-GB8162 ne-GB8163, okuyizindinganiso ezimbili ezivame ukusetshenziswa eChina.Nokho, ASTM A1045Ipayipi Lensimbi Yesakhiwoine-GB8162 kuphela, okuyizinto ezisetshenziswa kakhulu ekwenzeni imishini.
Ipayipi lensimbi le-ASTM A1045 liyipayipi lensimbi elivamise ukusetshenziswa eliphakathi nendawo elicishiwe nelinomoya opholile elinezakhiwo ezinhle ezibanzi zemishini, ukuqina okuphansi nokuqhekeka kalula ngesikhathi sokucisha amanzi.Izingxenye ezincane kufanele zicinywe futhi zifudumale, futhi izingxenye ezinkulu kufanele zijwayele, ikakhulukazi ezisetshenziselwa ukukhiqiza izingxenye ezihambayo ezinamandla, ezifana ne-turbine impeller ne-compressor piston.I-shaft, igiya, i-rack, i-worm, njll.
I-ASTM1045 carbon steel pipeiqukethe cishe u-0.45% wekhabhoni, inani elincane le-manganese, i-silicon, njll., nokuqukethwe kwesulfure ephansi ne-phosphorus yepayipi lensimbi yesakhiwo sekhabhoni ephezulu.
Ukushisa kokushisa kokushisa: i-normalizing 850, i-quenching 840, i-temering 600. I-ASTM1045 steel iyinsimbi yekhwalithi ephezulu ye-carbon structural enobulukhuni obuphansi futhi kulula ukuyisika.Isikhunta sivame ukusetshenziswa njengezifanekiso, izikhonkwane, izinsika zomhlahlandlela, njll., kodwa kufanele kuphathwe ukushisa.1. Insimbi ye-ASTM1045 iyafaneleka uma ubulukhuni bayo bukhulu kune-HRC55 (kufika ku-HRC62) ngemva kokucisha nangaphambi kokufutheka.Ukuqina okuphezulu kakhulu ekusebenzeni okusebenzayo yi-HRC55 (i-high-frequency quenching HRC58).2. Inqubo yokwelapha ukushisa kwe-carburizing kanye nokucisha ngeke isetshenziselwe insimbi ye-ASTM1045.Izingxenye ezicishiwe nezinolaka zinezakhiwo ezinhle ezibanzi zemishini futhi zisetshenziswa kabanzi ezingxenyeni ezihlukahlukene ezibalulekile zesakhiwo, ikakhulukazi lezo zinduku zokuxhuma, amabhawodi, amagiya namashafu asebenza ngaphansi kwemithwalo eshintshanayo.Kodwa-ke, ubulukhuni bobuso buphansi futhi abukwazi ukumelana nokugqoka.Ukuqina kobuso bezingxenye bungathuthukiswa ngokucisha kanye nokushisa+ukucisha ubuso.Ukwelashwa kwe-Carburizing ngokuvamile kusetshenziselwa izingxenye zomthwalo osindayo ezinokumelana nokuhuzuka komhlaba kanye nokumelana nomthelela oyinhloko, futhi ukumelana kwayo nokuhuzuka kuphakeme kunokokucisha kanye nokushisa+ kokucisha ubuso.Okuqukethwe kwayo kwekhabhoni engaphezulu kungu-0.8-1.2%, futhi umnyombo wayo ngokuvamile ngu-0.1-0.25% (0.35% ezimeni ezikhethekile).Ngemuva kokwelashwa kokushisa, indawo engaphezulu ingathola ubulukhuni obuphezulu kakhulu (HRC58-62), kanti umnyombo unobulukhuni obuphansi kanye nokumelana nomthelela.Uma i-ASTM1045 insimbi isetshenziselwa ukungcwatshwa kwe-carburizing, i-martensite eqinile ne-brittle izovela kumongo ngemva kokucisha, ilahlekelwe izinzuzo zokwelashwa kwe-carburizing.Njengamanje, okuqukethwe kwekhabhoni yezinto ezithatha inqubo ye-carburizing akuphezulu, futhi amandla ayisisekelo angafinyelela phezulu kakhulu ngo-0.30%, okuyivelakancane ekusetshenzisweni.U-0.35% akakaze azibone izibonelo, futhi azethule ezincwadini zokufunda kuphela.Inqubo yokucisha kanye nokushisa+izinga eliphezulu lokucisha i-high-frequency surface ingasetshenziswa, futhi ukumelana nokugqokwa kubi kakhulu kunokwe-carburizing.Isistimu yokwelapha ukushisa enconyiwe yensimbi engu-45 ecaciswe ku-GB/T699-1999 ejwayelekile ingu-850 ℃ normalizing, 840 ℃ quenching kanye no-600 ℃ tempering.Izakhiwo ezizuziwe ukuthi amandla esivuno angu-≥ 355MPa.Amandla aqinile wensimbi engu-45 ecaciswe ku-GB/T699-1999 standard ngu-600MPa, amandla okukhiqiza angu-355MPa, ubude bungu-16%, ukuncishiswa kwendawo kungu-40%, kanti amandla omthelela angu-39J.
Isikhathi sokuthumela: Sep-24-2022