Qalabka 9 cr2mo ee birta duudduuban ee caadiga ah ee Cr2 waxay inta badan ku jirtaa warshadaha loo isticmaalo soo saarista qabow duuban oo leh rullaluistemadka qabow qabow iyo feeray iwm laakiin qaar badan ayaa leh ma garanayaan habka daaweynta kulaylka 9 cr2mo, markaa halkan inta badan Si aad uga hadasho habka daaweynta kulaylka 9 cr2mo, waxaan rajeyneynaa inaad noqoto spheroidizing annealing: 1 790 ~ 810 kuleylka, isothermal, 650 ~ 670, 500 qaboojinta hawada; iyo shuruudo kala duwan, dhexdhexaadinta qaboojinta sida biyaha PAG saliid dareere ah ayaa la isticmaali karaa.
Fiiro gaar ah: been-abuuradu waa bir duuban oo qabow oo Cr2 ah.
3 Heerkulka dhibicda halista ah (qiimaha qiyaastii): Ac1 = 740 C Ar1 = 700 C Accm :850 C 4 Tilmaamaha jilcinta caadiga ah ee maran qabow820 10) C 3 ~ 4h, oo leh heerka qaboojinta.15 C/h, foornada si tartiib tartiib ah u qaboojinaysa ilaa 650 C, 5 qabow la riixay oo maran foornada qaboojinta si tafatirka jilicsanaanta dunta-spindled820 10) C 3 ~ 4h, (720 10) C 6 ~ 8h, ka dibna foornada si tartiib tartiib ah u qaboojineyso 600 C, Tilmaamaha caadiga ah: heerkulka caadiga ah 900 ~ 920 C, adkaanta 302-388HBW 7 Batch isothermal ~ spheroidizing Annealing: 810 C 2 ~ 3h, qaboojinta foornada, 7O0-720 C 3 ~ 4h, adkaanta 217HBW, heerka nudaha Pearlitic 2-5, Faahfaahinta deminta iyo dabka 62-65 HRC, heerkulka heerkulka 130-150 C, adkaanta 62-65 HRC 2. Deminta heerkulka 840-860 C, adkaanta 61-63 HRC, heerkulka heerkulka 150-170 C, adkaanta 60-62HRC.
Waqtiga boostada: Agoosto-04-2020