Ziwalo zambiri zamakina zikugwira ntchito mosinthasintha komanso zolemetsa monga torsion ndi kupindika, ndipo kusanjika kwawo kumakhala ndi kupsinjika kwakukulu kuposa pachimake; M'mikhalidwe yakukangana, gawo la pamwamba limatha nthawi zonse. Choncho, chofunika kulimbikitsa pamwamba wosanjikiza forgings anaika patsogolo, kutanthauza kuti pamwamba ndi mkulu mphamvu, kuuma ndi kuvala kukana.
Pamwamba kutentha mankhwala a forgings mbali ndi ndondomeko yekha ntchito kutentha mankhwala pamwamba pa workpiece kusintha kapangidwe ndi katundu. Nthawi zambiri, pamwamba pamakhala kuuma kwakukulu komanso kukana kuvala, pomwe pachimake chimakhalabe ndi pulasitiki yokwanira komanso kulimba. Popanga, zitsulo zokhala ndi zinthu zina zimasankhidwa poyamba kuti zitsimikizire kuti zida zamakina pachimake zimakwaniritsa zofunikira, ndiyeno njira zochizira kutentha pamtunda zimagwiritsidwa ntchito kuti zilimbikitse kusanjikiza pamwamba kuti zikwaniritse zofunikira. Chithandizo cha kutentha kwapamtunda chimagawidwa m'magulu awiri: kuzimitsa pamwamba ndi mankhwala opangira kutentha kwa mankhwala.
Pamwamba kuzimitsidwa kwa forgings mbali. Pamwamba kuzimitsidwa kwa forgings mbali ndi kutentha mankhwala njira kuti mofulumira kutentha pamwamba pa workpiece ndi kutentha quenching, ndiye mofulumira kuziziritsa pansi, kokha kulola pamwamba wosanjikiza kupeza dongosolo kuzimitsidwa, pamene pachimake akadali kupitiriza dongosolo pre-zimitsidwa. . Zomwe zimagwiritsidwa ntchito nthawi zambiri ndi kuzimitsa kutentha kwa induction komanso kuzimitsa moto wamoto. Kuzimitsa pamwamba nthawi zambiri kumagwiritsidwa ntchito ngati chitsulo chapakati cha kaboni ndi chitsulo chapakatikati cha carbon alloy forgings.
Kuzimitsa Kutentha kwa induction kumagwiritsa ntchito mfundo ya electromagnetic induction kuti ipangitse mitsinje yayikulu pamwamba pa chogwirira ntchito kudzera pamagetsi osinthasintha, zomwe zimapangitsa kuti pamwamba pa fakitole patenthedwe mwachangu pomwe pachimake chimakhala pafupifupi chosatenthedwa.
Makhalidwe a kutentha kwapang'onopang'ono kuzimitsa: pambuyo kuzimitsa, njere za martensite zimayengedwa, ndipo kuuma kwa pamwamba ndi 2-3 HRC kuposa kuzima wamba. Pali kupsinjika kwakukulu kotsalira kotsalira pamtunda, komwe kumathandizira kukulitsa mphamvu ya kutopa; Osakonda ma deformation ndi oxidative decarburization; Zosavuta kukwaniritsa makina ndi makina, oyenera kupanga misa. Pambuyo pozimitsa kutentha kwa induction, kuti muchepetse kupsinjika ndi brittleness, kutentha kwapansi pa 170-200 ℃ kumafunika.
Kuzimitsa moto kwamoto ndi njira yomwe imagwiritsa ntchito lawi la mpweya wa acetylene (mpaka 3100-3200 ° C) kuti litenthetse msanga pamwamba pazitsulo pamwamba pa kutentha kwa gawo, ndikutsatiridwa ndi kuzimitsa ndi kuziziritsa.
Nthawi yomweyo yambitsani kutentha pang'ono mukatha kuzimitsa, kapena gwiritsani ntchito kutentha kwamkati kwa zinyalala kuti mupirire. Njirayi imatha kupeza kuya kwakuya kwa 2-6 mm, ndi zida zosavuta komanso zotsika mtengo, zoyenera kupanga kachidutswa kamodzi kapena kakang'ono.
OEM Customized Open Forging Part Kwa opanga Bit ndi ogulitsa | WELONG (welongsc.com)
Nthawi yotumiza: Sep-05-2023
