Malangizo ogwiritsira ntchito makina owombera pachimake
Makina owombera pachimake ndi chida chofunikira kwambiri chomwe chimagwiritsidwa ntchito m'mafakitale opangira zopangira mchenga. Mlingo wake wa ntchito umakhudza mwachindunji mtundu wa mchenga wa mchenga, kupanga bwino komanso mtengo wake. Mofanana ndi akasinja ophulitsa kuwombera ndi makina ophulitsira kuwombera, chitetezo ndicho chofunikira kwambiri, koma makina owombera apakati amagogomezera kwambiri kuwongolera koyenera kwa magawo.
Zotsatirazi ndi malangizo ogwiritsira ntchito makina owombera pachimake (makamaka mabokosi otentha omwe amagwiritsidwa ntchito kwambiri ndi makina owombera apakati) kuyambira kukonzekera mpaka kukonza.
Mfundo yaikulu: Chitetezo ndi kukhazikika
Chitetezo: Masks a gasi amayenera kuvalidwa (makamaka mukamagwiritsa ntchito gasi wa amine m'mabokosi ozizira ozizira), magolovu osamva kutentha kwambiri-, magalasi oteteza, ndi nsapato zachitetezo. Zitseko zachitetezo ndi zida zolumikizira zida ziyenera kukhala zabwino komanso zogwira mtima.
Kukhazikika kwadongosolo: Ubwino wa ma cores a mchenga umadalira kwambiri magawo okhazikika (monga kuthamanga, nthawi, kutentha, ndi zina). Kusintha pang'ono kulikonse kungayambitse gulu lazinthu zolakwika.
Kufotokozera Mwatsatanetsatane Maluso Ogwiritsa Ntchito Makina Owombera Akuluakulu
I. Kukonzekera Musanachite Homuweki
"Six-step Method" yamakina a Core Shooting ndi kuunika nkhungu:
Kuyang'anira chitetezo: Tsimikizirani kuti chitseko chachitetezo, chipangizo cha pneumatic/hydraulic locking ndi batani loyimitsa mwadzidzidzi zikugwira ntchito bwino.
Kuthamanga kwa mpweya ndi kupanikizika: Onetsetsani ngati kuthamanga kwa mpweya waukulu kumakhala kokhazikika (kawirikawiri 0.5-0.7MPa), kukhetsa madzi ndikusefa mpweya, ndikuwona ngati zochita za valavu ya solenoid ndi silinda zimakhala zovuta. Pressure ndiye mzimu wapakatikati.
Dongosolo la mchenga: Yang'anani ngati valavu yophulitsira mchenga ndi pulagi yotulutsa mpweya ndizosatsekeka komanso ngati mphete yosindikizira ya mutu wa mchenga wavala. Chotsani mchenga wotsalira kuti muteteze kuphatikizika.
Nkhungu (pachimake bokosi) : Ichi ndiye pachimake. Bokosi lalikulu liyenera kutsukidwa bwino. Gwiritsani ntchito mkuwa kapena zida zapadera kuti muchotse kung'anima kotsalira kapena mchenga wowunjikana. Utsi wotulutsa nkhungu mofanana (pang'ono pang'ono koma mofanana; mochuluka kwambiri kungayambitse kuwonongeka kwa porosity).
Dongosolo lotenthetsera (bokosi lotentha) : Onani ngati kutentha kwa mbale yotenthetsera ndi yunifolomu komanso yokhazikika, kufika pamtengo wokhazikitsidwa (nthawi zambiri 180-280 digiri). Yezerani kutentha kwenikweni kwa bokosi pamalo angapo ndi thermometer.
Dongosolo loperekera mchenga: Onetsetsani kuti pali mchenga wokwanira wokwanira mumchenga, komanso kuchuluka kwa mchenga (utomoni, mankhwala ochiritsa, ndi zina zotero) pachosakaniza mchenga ndi chokhazikika komanso cholondola.
Kutsimikizika kwa magawo apakati akuwombera
Malingana ndi mawonekedwe, kukula ndi zovuta za mchenga, ikani kapena tsimikizirani zotsatirazi:
Kuthamanga kwa mchenga ndi nthawi: Kusakwanira kokwanira kapena nthawi yochepa kwambiri kumapangitsa kuti mchenga ukhale "wosawomberedwa mwamphamvu" ndikumasuka. Kupanikizika kwambiri kapena nthawi yayitali kungayambitse "kudumphira", kupangitsa mucous nembanemba kapena pachimake cha mchenga kukhala chosalimba.
Nthawi yochiza (ya mabokosi otentha) / nthawi yowombera (mabokosi ozizira ozizira) : Ngati nthawiyo siikwanira, mphamvu ya mchenga sikhala yokwanira. Ngati nthawi yayitali kwambiri, izi zimachepetsa kugwira ntchito bwino ndipo zingayambitse kuwotcha kwambiri kapena phata la mchenga kukhala lolimba.
Kutulutsa koyambira ndikuchotsa pakati: Sinthani kugunda ndi liwiro la core ejection rod kuti mutsimikizire kutulutsa kosalala popanda kusweka pachimake cha mchenga.
Ii. Kugwira ntchito pakugwiritsa ntchito makina owombera
Njira zogwirira ntchito zokhazikika
Kutseka kwa nkhungu: Mukaonetsetsa kuti bokosi lapakati ndi loyera, yambani njira yotseka nkhungu ndikutsimikizira kuti yatsekedwa.
Kuphulika kwa mchenga: Dinani batani la mchenga ndikuyang'anitsitsa phokoso la mchenga. Phokoso labwino la kuwombera mchenga ndi lalifupi koma lamphamvu "sizzle". Phokoso lopanda phokoso likhoza kusonyeza kutsekeka, pamene phokoso lopanda phokoso likhoza kusonyeza kutuluka kwa mpweya.
Kuchiritsa/Kuwomba: Dikirani nthawi yoikika. Osatsegula chitseko pasadakhale panthawiyi.
Kutsegula nkhungu ndi kunyamula pakati: Tsegulani chitseko chachitetezo ndikuwona ngati phata la mchenga likukankhidwa bwino ndikugwidwa. Ndizoletsedwa kutenga pachimake mwachindunji kuchokera ku nkhungu ndi dzanja kuteteza scalding (bokosi lotentha lapakati) kapena kuwononga nkhungu. Gwiritsani ntchito zida za pneumatic clamping kapena pallets.
Kuyang'anira nkhani yoyamba ndikuwunika kachitidwe
Kuyang'anira chinthu choyamba: Pambuyo popanga maziko a mchenga woyamba, makinawo ayenera kutsekedwa kuti awonedwe bwino.
Maonekedwe: Kaya ili yonse, yosowa ngodya, yotayirira kapena ming'alu.
Makulidwe: Yang'anani miyeso yayikulu ndi zida zoyezera kapena mapaleti.
Mphamvu: Gwiritsani ntchito makina oyezera kulimba kwa mchenga kapena kuuphwanya ndi dzanja pazigawo-zofunika kwambiri.
Kuyang'anira ndondomeko: Bwerezaninso kuyendera pafupipafupi (monga zinthu 30 mpaka 50 zilizonse). Yang'anani kusintha kwa kulemera kwa mchenga pachimake (chomwe chingawonetsere kudzaza kwa mchenga).
Njira zabwino zosinthira
Kuthetsa vuto la jekeseni wa mchenga wosakwanira: Choyamba, onjezerani kuthamanga kwa jekeseni wa mchenga, ndiyeno onjezerani nthawi ya jekeseni wa mchenga. Onani ngati pulagi yotulutsa mpweya yatsekeka.
Kuthana ndi vuto la kumamatira nkhungu: Onani ngati kupopera mbewu mankhwalawa ndikothandiza, tsitsani kutentha kwa nkhungu (kwa mabokosi otentha kwambiri), kapena chepetsani kuchuluka kwa machiritso omwe amagwiritsidwa ntchito (mabokosi ozizira pachimake). Yang'anani kumapeto kwa nkhungu.
Kuthetsa vuto la mchenga wa core brittleness: Atha kukhala chifukwa cha-kuchira (nthawi yayitali kapena kutentha kwambiri) kapena kusakwanira kwa utomoni.
Njira zophulitsira mchenga pamiyendo yamchenga yovuta: Pamiyendo yamchenga yokhala ndi mabowo akuya ndi makoma opyapyala, pangafunike kusintha malo a mphuno yophulitsira mchenga kapena kutengera njira zina zapadera monga kupukuta mchenga kapena kupukuta.
Iii. Kusamalira Makina Owombera Apakati Pambuyo Kugwira Ntchito
Ntchito yatsiku ndi tsiku/Shift yomaliza:
Kuyeretsa mchenga bwino: Mukathimitsa magetsi ndi mpweya, yeretsani mchenga wonse wotsalira mu silinda yowombera mchenga, yogwirira ntchito ndi nkhungu.
Kusamalira nkhungu: Chotsani bwino bokosi lapakati, tsitsani kachipangizo kakang'ono koteteza nkhungu, kenaka mutseke nkhunguyo ndikuyisunga kuti musachite dzimbiri kapena kupunduka.
Fyuluta yotulutsa mpweya: Imachotsa madontho a chinyezi ndi mafuta panjira yoyendera mpweya.
Kusamalira nthawi zonse
Yang'anani nthawi zonse ndikusintha magawo omwe ali pachiwopsezo monga valavu yowombera mchenga, mphete yosindikizira ndi valavu ya solenoid.
Yeretsani kapena sinthani zenera la exhaust plug.
Mafuta njanji zowongolera ndi zikhomo.
Maluso apamwamba ndi malangizo
Kutentha kwa nkhungu: Isanayambe kupanga, nkhungu iyenera kutenthedwa bwino mpaka kutentha kogwira ntchito; mwinamwake, khumi ndi awiri oyambirira mchenga cores onse adzakhala substandard mankhwala.
Kasamalidwe ka zinthu zamchenga: Kutentha ndi chinyezi cha mchenga waiwisi zimakhudza kwambiri ntchitoyi. Ndi bwino kulamulira kutentha kwa mchenga yaiwisi pa 25-35 digiri ndi chinyezi pansi 0.3%. Gwiritsani ntchito chowongolera kutentha kwa mchenga.
Kujambulitsa ndi kukhathamiritsa magawo: Khazikitsani malo osungiramo "sand core - mold - parameter" kuti mupeze ndikujambulitsa zosakaniza zoyenera pamtundu uliwonse wa mchenga.
Kugwirira ntchito limodzi: Wogwiritsa ntchito makina owombera pachimake ayenera kulumikizana kwambiri ndi osakaniza mchenga, ogwira ntchito yokonza nkhungu, komanso osungunula ndi kuthira antchito. Nkhani zabwino ziyenera kufufuzidwa mwadongosolo.
Chidule: Kugwiritsa ntchito makina owombera pachimake ndi njira yaukadaulo yaukadaulo. Pachimake tinganene mwachidule monga "magawo asanu ndi awiri kukonzekera, ntchito magawo awiri, ndi gawo limodzi kukonza". Wochita bwino kwambiri samangogwiritsa ntchito chipangizocho komanso amawunika ndikusintha magawo azinthu. Ayenera kukhala ndi luso loyang'anitsitsa (kuyang'ana zitsulo zamchenga ndi kumvetsera phokoso) ndi luso losanthula mozama. Kutsatira mosamalitsa njira zogwirira ntchito komanso kuchulukitsira zokumana nazo nthawi zonse ndi njira zokhazo zowonetsetsera kuti-zikupanga zinthu zabwino kwambiri.