Spot chitsimikizo malonda opanga 42CrMo aloyi zitsulo zitoliro
Cholinga cha 42CrMo chitoliro chosasunthika chachitsulo: chitsulo chapadera cha mlatho ndi "42CrMo", chitsulo chapadera chazitsulo zamagalimoto ndi "42CrMo", ndipo chitsulo chapadera chopangira mphamvu ndi "42CrMo". Chitsulo chamtunduwu chimapangitsa kuti zitsulo zisamayende bwino posintha mpweya wa carbon (c). Choncho, malinga ndi carbon okhutira, mtundu uwu wa zitsulo akhoza kugawidwa mu: otsika mpweya zitsulo - mpweya zili zambiri zosakwana 0,25%, monga 10 ndi 20 zitsulo; Sing'anga mpweya zitsulo - zili mpweya zambiri pakati 0,25 ~ 0,60%, monga 35 ndi 45 zitsulo; Mkulu wa carbon zitsulo - mpweya wa carbon nthawi zambiri umaposa 0.60%. Chitsulo chamtunduwu sichimagwiritsidwa ntchito popanga mapaipi achitsulo.
42CrMo ndi mtundu wachitsulo. Chitsulo chinkatchedwa chitsulo. Njirayi imatchedwa Q345B. Zida zofanana ndi Q345A, Q345C ndi Q345E. Chizindikiro cha giredi A, B, C, de motsatana chikuwonetsa kuti kuyesa kwamphamvu sikofunikira. Kutentha koyeserera ndi + 20 ° 0 ° mpaka 20 ° 40 ° ABCD kukuwonetsa kalasi yabwino Q235. Magiredi abwino agawika m’magiredi anayi A, B, C ndi D. kuchokera ku A mpaka D akusonyeza kuti khalidweli ndi lotsika mpaka lapamwamba.
A - kupereka s, P, C, Mn, Si mankhwala zikuchokera ndi Fu, FY δ 5 (δ 10), 1800 ozizira kupinda mayeso akhoza kuperekedwa malinga ndi zosowa za wogula, koma palibe mphamvu mphamvu kulamulira, ndi zili carbon. ndipo manganese samatengedwa ngati njira yobweretsera.
B - perekani s, P, C, Mn, Si mankhwala opangidwa ndi Fu, FY δ 5 (δ 10), kuyesa kozizira 180 '. Mphamvu yamphamvu AK ≥ 27j pa + 200C imaperekedwanso
C - kuwonjezera pa zofunikira za kalasi B, mphamvu yowonongeka AK ≥ 27j pa 00C imaperekedwanso.
D - kuwonjezera pa zofunikira za mlingo B, mphamvu yowonongeka AK ≥ 27j pa - 200C imaperekedwanso. E -- kuphatikiza pa zofunikira za mulingo B, mphamvu yamphamvu AK ≥ 27j pa - 400C imaperekedwanso. Hot ntchito specifications
Kutentha kwa kutentha ndi 1150 ~ 1200 ° C, kutentha koyambira ndi 1130 ~ 1180 ° C, ndipo kutentha kotsiriza ndi> 850 ° C, φ> Kuzizira pang'onopang'ono pa 50mm.
Kutentha kokhazikika ndi 850 ~ 900 ° C, ndipo ng'anjo imatulutsidwa kuti mpweya uzizizira.
Kutentha kwakukulu kwa kutentha
Kutentha kwa kutentha ndi 680 ~ 700 ° C, ndipo ng'anjo imatulutsidwa kuti mpweya uzizizira.
Preheating kutentha 680 ~ 700 ° C, kuzimitsa kutentha 840 ~ 880 ° C, mafuta kuzirala, tempering kutentha 580 ° C, madzi kuzirala kapena mafuta kuzirala, kuuma ≤ 217hbw.
Kukhazikika kwa kulimbitsa ndi kulimbitsa chithandizo ndi kutentha pang'ono quenching
Kuzimitsa kutentha 900 ° C, kutentha kutentha 560 ° C, kuuma (37 ± 1) HRC
Kufotokozera kwa induction kuzimitsa ndi kutentha
Kuzimitsa kutentha 900 ° C, tempering kutentha 150 ~ 180 ° C, kuuma 54 ~ 60HRC.
