42CRMO Ipayipi Lensimbi Elingenamthungo
Inhloso yepayipi lensimbi elingenamthungo elingu-42crmo: Ibanga lensimbi elikhethekile lamabhuloho "42crmo", ibanga lensimbi elikhethekile lamagida ezimoto lithi "42CRmo", futhi ibanga lensimbi elikhethekile lemikhumbi yokucindezela lithi "42Crmo". Lolu hlobo lwensimbi luncike ekulungiseni okuqukethwe kwekhabhoni (C) ukuze kuthuthukiswe izakhiwo zensimbi. Ngakho-ke, ngokwezinga lokuqukethwe kwekhabhoni, lolu hlobo lwensimbi lungahlukaniswa lube: Insimbi ye-carbon ephansi-i-carbon content ngokuvamile ingaphansi kuka-0.25%, njenge-10, 20 steel, njll; okuqukethwe kwe-carbon steel-carbon okuqukethwe ngokuvamile kuphakathi kuka-0.25 no-0.60%, njengensimbi engu-35, 45, njll.; izinga eliphezulu le-carbon steel-carbon content ngokuvamile lingaphezu kuka-0.60%. Lolu hlobo lwensimbi ngokuvamile alusetshenziswa ekwenzeni amapayipi ensimbi.
Akukho ukufutheka okusobala okusobala, ukuwohloka okuncane ngesikhathi sokucisha, umkhawulo wokukhathala okuphezulu kanye nokumelana nomthelela omningi ngemva kokwelashwa kokucisha nokushisa, ukuqina komthelela wezinga lokushisa eliphansi, amandla aphezulu okukhasa kanye namandla ahlala njalo ezingeni lokushisa eliphezulu. Insimbi ivamise ukusebenzisa i-surface quenching ngemva kokucisha kanye nokushisa njengohlelo lokwelapha ukushisa.
I-42crmo iyinsimbi. Esikhathini esidlule, igama lensimbi. Igama lithi: Q345B, izinto ezifanayo yi-Q345a, Q345c, Q345e, uphawu lwezinga lekhwalithi i-ABCDE lisho ukuthi izinga lokushisa lokuhlola umthelela akudingekile ukuthi libe ngu-+20 degrees 0 degrees -20 degrees 40 degrees ABCD imele izinga lekhwalithi amaphuzu Q235 Kunamazinga amane ka-A, B, C, D, ukusuka ku-A kuye ku-D ukuthi ikhwalithi isuka kokuphansi iye phezulu.
Izidingo zamaleveli ekhwalithi ahlukene zimi kanje:
A——Nikeza ukwakheka kwamakhemikhali kwe-S, P, C, Mn, Si kanye ne-fu, fy, δ5 (δ10), ngokuya ngezidingo zomthengi, ukuhlolwa okugoba okubandayo okungaba ngu-1800 kunganikezwa, kodwa awukho ukulawulwa kwamandla okunomthelela, ikhabhoni. okuqukethwe nokuqukethwe kwe-manganese akubhekwa njengezimo zokulethwa.
B——Nikeza ngo-S, P, C, Mn, Si ukwakheka kwamakhemikhali kanye ne-fu, fy, δ5 (δ10), ukuhlolwa okubandayo okugoba okungu-180'. Iphinde inikeze amandla omthelela kokuthi +200C, Ak≥27J
I-C-Ngaphezu kwezidingo ezifanayo njenge-Class B, iphinde inikeze amandla omthelela Ak≥27J ku-00C.
D----Ngaphezu kwezidingo zeleveli B, iphinde inikeze amandla omthelela Ak≥27J ku -200C. E----Ngaphezu kwezidingo zeleveli B, iphinde inikeze amandla omthelela Ak≥27J kokuthi -400C.
Lapho kusebenza khona amapayipi ensimbi angenamthungo angu-42crmo kanye namapayipi ensimbi ajwayelekile ngokulandelanayo: Amapayipi ensimbi ahlukaniswa abe abandayo adonswayo nagoqwe ashisayo.
1, Ground umthungo steel ipayipi uketshezi: GB8163-2018
2, ipayipi lensimbi engenamthungo kubhayela: GB3087- 2018
3. Ipayipi elinomfutho ophezulu elingenamthungo kubhayela: GB5310-2018 (ST45.8-Ⅲ uhlobo)
4. Amapayipi ensimbi angenamthungo aphezulu anomfutho omkhulu wemishini kamanyolo: GB6479-2018
5. Ipayipi lensimbi elingenamthungo lokumba i-geological: YB235-70
6, Ipayipi lensimbi elingenamthungo lokumba uwoyela: YB528-65
7, Ipayipi lensimbi engenamthungo yokuqhekeka kwe-petroleum: GB9948-2018
8. Ipayipi elikhethekile elingenamthungo lekhola yokubhola uwoyela: YB691-70
9, Ipayipi lensimbi elingenamthungo lomshini wemoto uhhafu: GB3088-2018
10. Ipayipi lensimbi engenamthungo yemikhumbi: GB5312-2018
11. Ipayipi lensimbi engenamthungo elidonswe kubanda elidonswe kubanda: GB3639-2018
Amapayipi e-alloy ahlukahlukene 16Mn, 27SiMn, 15CrMo, 35CrMo, 12CrMovG, 20G, 40Cr, 12Cr1MoV, 15CrMoG amapayipi ensimbi ahlukaniswe amapayipi ensimbi angenamthungo kanye namapayipi ensimbi ashiselwe ngokuya ngezinqubo ezahlukene zokukhiqiza.
Amapayipi ensimbi angenamthungo amapayipi ensimbi angenamthungo enziwe ngezingothi zensimbi, amabhilidi noma izinti zensimbi ezinezimbobo.
