Q345C izinga lokushisa eliphansi ipayipi lensimbi indawo yangempela
Ubude bodonga lwebanga lebanga mm ubude δ 5 ≥%% amandla esivuno δ S (MPA ≥) izinga lokushisa lokuhlola ℃
Q345A ≤ 16 21 345 ayidingeki
Q345B ≤16 21 345 20
Q345C 16-35 22 ≥325 0
IBanga C Si Mn PSV NB Al Ti
Q345A ≤0.20 ≤0.55 ≤1.70 ≤0.045 ≤0.045 0.02-0.15 0.015-0.060 0.02-0.20
Q345B ≤0.20 ≤0.55 ≤1.70 ≤0.040 ≤0.040 0.02-0.15 0.015-0.060 0.02-0.20
Q345C ≤0.20 ≤0.55 ≤1.70 ≤0.035 ≤0.035 0.02-0.15 0.015-0.060 ≥0.015 0.02-0.20
Ikakhulukazi ngenxa yokuqukethwe okuhlukile kwekhabhoni ne-manganese:
Q235-A
Okuqukethwe kwekhabhoni C: 0.14 ~ 0.22; Mn: 0,30 ~ 0,65;
Q235-B
Okuqukethwe kwekhabhoni C: 0.12 ~ 0.20; UMn: 0,30 ~ 0,70;
Isetshenziswa ezingxenyeni ze-carburized noma ze-cyanide ezinezidingo zamandla aphansi, njengenduku yokudonsa, induku yokuxhuma, ihuku, ibhawudi, i-shaft kanye nokushisela.
Kufanele kube nemikhawulo ekushiseni!
Ikakhulu, i-Q345E. Amashumi amadigri ngaphansi kweziro.
Ngaphezu kwalokho, uma kuqhathaniswa nezinga elidala, imfuneko esobala kakhulu yezinga elisha ukulungisa okuqukethwe kwe-Mn ensimbi kusuka ku-1.0-1.60 kuya ku-≤ 1.70, futhi kukhansele umkhawulo wenani eliphansi lika-≥ 1.0.
I-Q345C ipayipi lensimbi ingenye yezinto zepayipi lensimbi.
I-Q345A, Q345B, Q345C, Q345D kanye ne-Q345E amamaki ekhwalithi. Ayanda ukusuka ku-a kuye ku-e, ikakhulukazi ngenxa yomehluko wokushisa okunomthelela obangelwa okuqukethwe okuhlukene kwezinto ezincane ezifana ne-phosphorus nesibabule, okubonisa umehluko kuzinga lokushisa elinomthelela kanye nezakhiwo zemishini zokwakheka kwamakhemikhali epayipi.
Q345A, awukho umthelela; Q345B, 20 ° umthelela ojwayelekile wokushisa; Q345C, 0 degree umthelela; Q345D, kuyinto - 20 degree umthelela; I-Q345E ingu-40 degree umthelela. Emazingeni okushisa omthelela ahlukene, amanani omthelela nawo ahlukile.
Q amandla okukhiqiza awekho ngaphansi kuka-345mp, futhi izinga lekhwalithi libonisa ukuthi liqukethe izakhi zokungcola (ikhabhoni, i-manganese, i-silicon, isulfure ne-phosphorus). Ingabe inani lokungcola (izakhi) ensimbi. Kamuva i-A, B, C kanye no-D, kuyancipha okuqukethwe ukungcola
I-Q345A iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.045%
I-Q345B iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.040%
I-Q345C iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.035%
I-Q345D iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.030%
I-Q345E iqukethe kokubili i-phosphorus nesibabule ngaphansi noma okulingana no-0.025%
Ukungcola kwe-phosphorus nesibabule kunsimbi, kuba kubi kakhulu ukuqina komthelela
Q345A
Q345B Akv hhayi ngaphansi kuka 34 at 20 ℃
Ku-Q345C 0 ℃, i-Akv ngeke ibe ngaphansi kuka-34
Q345D - Akv hhayi ngaphansi kuka-34 at 20 ℃
Ku-Q345E - 40 ℃, i-Akv ayikho ngaphansi kuka-27
Isizathu sokugcina ukuthi ukuncishiswa kokungcola kwe-P kanye ne-s ensimbi kukhuthaza ukuthuthukiswa kokuqina komthelela ekushiseni okuphansi. Enye iwukwakheka kwamakhemikhali e-Q345 kanti enye yimishini ye-Q345
C≤0.2%,Mn 1.0-1.6%,
Si ≤0.55%,
S ≤0.35%,
P ≤0.35%,
V 0.02-0.15%,
Nb 0.015-0.06%,
Ti 0.02-0.2%,
AL ≥0.015%
Izici zemishini yilezi:
Amandla okukhiqiza: ≥ 345mpa (ubukhulu bungaphansi kuka-16mm)
Amandla we-Tensile: 470-630mpa
Ubude: 22%
Amandla omthelela: ≥ 34j (izinga lokushisa lokuhlola 0 °)
180 ° ukuhlolwa kokugoba:
D = 2A (ubukhulu bungaphansi kuka-16mm)
Amandla okukhiqiza: ≥ 345mpa (ubukhulu bungaphansi kuka-16mm)
Amandla we-Tensile: 470-630mpa
Ubude: 22%
Amandla omthelela: ≥ 34j (izinga lokushisa lokuhlola 0 °)
180 ° ukuhlolwa kokugoba:
D = 2A (ubukhulu bungaphansi kuka-16mm)