Mamiriro ehurongwa hwekugadzira mavhiri mushure mekugadzira

Kugadzirwa kwemavhiri forgings kunonyanya kuita kudziyisa, deformation uye kutonhora maitiro.Wheel forgings inoratidza dzakasiyana siyana dzesangano nekuda kwekuumbwa kwezvinhu uye saizi yemavhiri forgings.Mukupfupisa, pane zvikurukuru pfungwa mbiri dzinotevera.

1. Mamiriro ehurongwa hwemavhiri mavhiri makuru

Iri rudzi rwemavhiri forgings anowanzo kuumbwa nekunangana kwekugadzira ingots dzesimbi.Nekuda kwehuwandu hwehuwandu hwekudziya (6 moto kana kupfuura) panguva yekugadzira, kusaenzana deformation, misiyano mikuru yemuchinjiro, uye dhigirii repamusoro rekusanganiswa kwezvinhu, chinhu chinonyanya kuzivikanwa chechimiro chekugadzira mavhiri mavhiri makuru ndeyekusara kwehydrogen yemukati uye. kusaenzana kwakakomba kwechimiro.Kuvapo (yakasanganiswa crystal phenomenon), inova chinhu chakakosha chinokanganisa kushanda kwemavhiri mavhiri makuru, saka zvakare idambudziko rinoda kugadziriswa mukupisa kurapwa dhizaini yekugadzira mavhiri mavhiri makuru.

2. Mamiriro ehurongwa hwemavhiri madiki uye epakati nepakati

Idzi mhando dzemavhiri forgings dzinonyanya kuumbwa nefa forging yemaprofile akakungurutswa.For Hypoeutectoid steels (yepakati kabhoni simbi, yepakati kabhoni yakaderera alloy structural simbi), mushure mekupedzisira forging, apo mhepo-yakatonhodzwa kusvika kamuri tembiricha, coarse uye hombe ferrite uye Lamellar pearlite chimiro;ye hypereutectoid simbi, kunyanya yakakwira-kabhoni uye yakakwira-alloy simbi, inononoka kutonhora mushure mekugadzira yekupedzisira inogona kazhinji kuwana yakaomesesa annealed chimiro.Mukuwedzera, nekuda kwekusiyana kwechimiro uye chikamu chemuchinjikwa wevhiri forgings uye kutonhora kusingadzoreki, chimiro chinowanzove chisina kuenzana.Panguva imwecheteyo, nekuda kwemhedzisiro yekushushikana kwekushisa (kunonziwo thermal stress) uye kushushikana kwechimiro, zvakasara zvemukati zvinonetsa zvinogadzirwa mumavhiri forgings, saka kurapwa kwekupisa kunofanirwa kushandiswa kuvarapa.Kuvandudza uye kubvisa.

Iko kupisa kwekupisa kwemavhiri forgings kwakavakirwa pamhando yemavhiri forgings uye izvo mbishi zvinhu zvinoshandiswa kugadzira zvine hungwaru maitiro ekupisa maparamita.Kunyanya kupisa tembiricha, kubata nguva uye chiyero chekutonhora, uye kuburikidza nekunyatso kurongedza tekinoroji yekudziya uye kutonhora tekinoroji, zvinoti zvekudziya zvekushandisa, kupisa kumhanya, kupisa mhepo uye kutonhora mudziyo, kutonhora svikiro, kuwana iyo metallographic chimiro, mechanical zvivakwa uye michina zvivakwa zvevhiri forgings. .Shandisa maitiro.Ipa kutamba kwakazara kune zvingangoita zvechinyorwa, uye dzivirira hurema hwekurapa kupisa (deformation, decarburization, kutsemuka uye zvimiro zvisina kujairika, nezvimwewo), saka kurapwa kwekupisa kwakakosha uye kunokosha kugadzirisa maitiro ekuumbwa kwemavhiri forgings.

Anenge ese anotonhora, anodziya uye anopisa mavhiri mavhiri anofanirwa kupfuudza kurapwa kwekupisa kuti ive inokodzera zvikamu.Iyo nhanho yetekinoroji yekurapa tekinoroji inoita basa rakasimba mukuvimbisa nekuvandudza mashandiro, kurongeka, kugadzikana uye hupenyu hwebasa hwezvikamu.Panguva imwecheteyo, iyo mbishi, kudziyisa, Iyo yekuumba maitiro uye kutonhora inokanganisawo kupisa kwemhando yemhando yemavhiri forgings.Izvo zviviri zvine hukama hwepedyo uye hazviparadzanise.


Nguva yekutumira: Jun-18-2021