Ukuthengiswa kwewaranti ye-Spot yabakhiqizi bepayipi lensimbi ye-alloy 42CrMo
Inhloso yepayipi lensimbi elingenamthungo elingu-42CrMo: insimbi ekhethekile yebhuloho yi-"42CrMo", insimbi ekhethekile yegida yemoto yi-"42CrMo", kanti insimbi ekhethekile yomkhumbi wengcindezi ithi "42CrMo". Lolu hlobo lwensimbi luthuthukisa izakhiwo zensimbi ngokulungisa okuqukethwe kwekhabhoni (c). Ngakho-ke, ngokusho kokuqukethwe kwekhabhoni, lolu hlobo lwensimbi lungahlukaniswa lube: insimbi ephansi ye-carbon - okuqukethwe kwekhabhoni ngokuvamile kungaphansi kuka-0.25%, njengensimbi engu-10 no-20; I-Medium carbon steel - okuqukethwe kwekhabhoni ngokuvamile kuphakathi kuka-0.25 ~ 0.60%, njengensimbi engama-35 no-45; I-high carbon steel - okuqukethwe kwekhabhoni ngokuvamile kungaphezu kuka-0.60%. Lolu hlobo lwensimbi aluvamile ukusetshenziswa ekwenzeni amapayipi ensimbi.
I-42CrMo iwuhlobo lwensimbi. Insimbi yayibizwa ngokuthi insimbi. Indlela ibizwa nge-Q345B. Izinto ezifanayo yi-Q345A, Q345C ne-Q345E. Uphawu lwezinga lekhwalithi a, B, C, de ngokulandelana lubonisa ukuthi ukuhlolwa komthelela akudingekile. Izinga lokushisa lokuhlola umthelela lingu + 20 ° 0 ° kuya ku-20 ° 40 ° ABCD libonisa izinga lekhwalithi Q235. Ibanga lekhwalithi lihlukaniswe ngamabanga amane A, B, C kanye no-D. ukusuka ku-a kuye ku-D kubonisa ukuthi ikhwalithi isuka kokuphansi iye phezulu.
A - hlinzeka ngo-s, P, C, Mn, Si chemical composition kanye ne-Fu, FY δ 5 ( δ 10) , 1800 ukuhlolwa okugoba okubandayo kunganikezwa ngokuya ngezidingo zomthengi, kodwa awukho ukulawulwa kwamandla okunomthelela, kanye nokuqukethwe kwekhabhoni futhi okuqukethwe kwe-manganese akuthathwa njengezimo zokulethwa.
B - hlinzeka ngo-s, P, C, Mn, Si chemical composition kanye ne-Fu, FY δ 5 ( δ 10) , ukugoba okubandayo 180 'ukuhlolwa. Impact energy AK ≥ 27j at + 200C nayo inikeziwe
C - ngaphezu kwezidingo zekilasi B, amandla omthelela we-AK ≥ 27j ku-00C nawo anikeziwe.
D - ngaphezu kwezidingo zeleveli B, amandla omthelela AK ≥ 27j at - 200C nawo anikeziwe. E -- ngaphezu kwezidingo zeleveli B, amandla omthelela AK ≥ 27j ku - 400C nawo anikeziwe. Ukucaciswa kokusebenza okushisayo
Izinga lokushisa lokushisisa lingu-1150 ~ 1200 ° C, izinga lokushisa lokuqala lingu-1130 ~ 1180 ° C, futhi izinga lokushisa lokugcina ngu-> 850 ° C, φ> Ukupholisa kancane ku-50mm.
Izinga lokushisa elijwayelekile lingu-850 ~ 900 ° C, futhi isithando somlilo siyakhishelwa ukupholisa umoya.
Ukucaciswa kokushisa okuphezulu kwezinga lokushisa
Izinga lokushisa elipholile lingu-680 ~ 700 ° C, futhi isithando somlilo siyakhishelwa ukupholisa umoya.
Ukushisa okushisa ngaphambi kuka-680 ~ 700 ° C, ukushisa okucisha 840 ~ 880 ° C, ukupholisa uwoyela, izinga lokushisa lokushisa 580 ° C, ukupholisa amanzi noma ukupholisa uwoyela, ubulukhuni ≤ 217hbw.
Ukucaciswa kokuqinisa nokuqinisa ukwelashwa ngokucisha izinga lokushisa elincane
Ukushisa okucishayo 900 ° C, lokushisa komoya 560 ° C, ubulukhuni (37 ± 1) HRC
Ukucaciswa kokucinywa kwe-induction kanye nokushisa
Ukushisa kokucisha 900 ° C, lokushisa 150 ~ 180 ° C, ubulukhuni 54 ~ 60HRC.
