Hangarau hanga
Ko te tukanga whakaputa o te pae mandrel he maha nga waahanga uaua me te tika. Ko te tuatahi ko te rewa rauemi, e whakarite ana i te rite me te ma o te pae matua. Na ka hangai, na roto i te mahi hangai, ka parahia te witi o te rauemi, na reira ka whakapai ake i ona ahuatanga miihini me te oranga o te ratonga. Ko te mandrel hanga e hiahia ana ki te maimoatanga wera, he tukanga e tango ana i te ahotea o roto me te whakanui ake i te pakeke me te mau i te aukati o te mandrel. I muri i tera, ko te miihini, tae atu ki te hurihanga, te mira me etahi atu mahi, ka tutuki i te mandrel nga whakaritenga tika o te hoahoa. Ko te taahiraa whakamutunga ko te maimoatanga o te mata, penei i te tinei, te whakamarumaru, me etahi atu, hei whakarei ake i te aukati waikura me te pakeke o te mata o te mandrel.
Te whānuitanga o te tono me nga whakaritenga
Ka whakamahia whānuitia te pae mandrel i roto i nga momo mira hurihuri, penei i te MPM (mira hurihuri maha), PQF (mira hurihuri teitei) me te FQM (mira hurihuri tere). Ko ona momo whakaritenga, mai i te Φ80 mm ki te 500 mm te whanui, te roa mai i te 2500 mm ki te 17,500 mm, ka taea te whakatutuki i nga hiahia whakaputa rereke.
Te whiriwhiri rauemi
Ko te rauemi o te pae mandrel te nuinga o AISI H13 ranei te paerewa motu 4Cr5MoSiV1 me 36CrNiMoV6. Ko enei rauemi he tino pai nga ahuatanga o te pāmahana teitei me te kaha miihini ki te pupuri i te pumau i roto i nga taiao teitei me te pehanga teitei. Ko nga whakauru kore-whakarewa i roto i nga mea mandrel e hiahiatia ana kia kaua e neke ake i te 1.0 te karaehe A, B, C me te D, me te rahi o te witi kia eke ki te 8 karaehe ranei. Ko enei whakaritenga rauemi kaha ka whakarite i te kounga teitei me te pono o te pae mandrel.
Nga taonga miihini
Ko nga ahuatanga miihini e taunakihia ana mo te pae mandrel o te rauemi H13 e whai ake nei: Mo te mandrel me te diameter ≤200 mm, ko te kaha o te kaha ko te 1127-1274 mpa, ko te kaha o te tuku he ≥931MPa, ko te elongation he ≥8%, ko te waahanga whakaheke. he ≥25%, ko te mahi paanga ko ≥20J, me te pakeke HB350-390; Mo te mandrel me te diameter> 200 mm, ko tona kaha tensile ko 1078-1274 mpa, ko te kaha o te tuku he ≥882MPa, ko te elongation he ≥8%, ko te waahanga whakaheke he ≥25%, ko te mahi paanga ko ≥20J, ko te pakeke ko HB330-375.
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Wā tuku: Hune-19-2024
