Kodi njira zopangira ma hollow blowing ndi ziti?

Chiyambi cha njira yopangira mpweya:

Chifukwa cha kusiyana kwa zipangizo, zofunika processing, linanena bungwe ndi mtengo, osiyana nkhonya akamaumba njira ndi ubwino zosiyanasiyana pokonza zinthu zosiyanasiyana.

Kuwomba kwa zinthu zopanda pake kumaphatikizapo njira zitatu zazikulu:

1, extrusion kuwomba akamaumba: makamaka ntchito unsupported billet processing;

2, jekeseni kuwomba akamaumba: makamaka ntchito processing billet mothandizidwa ndi zitsulo pachimake;

3, Tambasula nkhonya akamaumba: kuphatikizapo extrusion kutambasula nkhonya akamaumba, jekeseni Tambasula kuwomba akamaumba njira ziwiri, akhoza pokonza mankhwala biaxial zochokera, kwambiri kuchepetsa mtengo kupanga ndi kusintha ntchito mankhwala.

Komanso, pali Mipikisano wosanjikiza nkhonya akamaumba, kukanikiza nkhonya akamaumba, kuviika ❖ kuyanika nkhonya akamaumba, thovu nkhonya akamaumba, atatu azithunzithunzi kuwomba akamaumba, etc. Komabe, 75% ya mankhwala nkhonya akamaumba ndi extrusion kuwomba akamaumba, 24% ndi jekeseni nkhonya. kuumba ndi 1% ndi zina zowomba.Pazinthu zonse zowomba, 75% ndi yamitundu iwiri.Ubwino wa extrusion nkhonya akamaumba ndi mkulu kupanga, mtengo wotsika zida, osiyanasiyana nkhungu ndi kusankha makina, kuipa ndi mkulu zinyalala mlingo, zobwezeretsanso zinyalala, magwiritsidwe osauka, mankhwala makulidwe kulamulira, disperity wa zopangira ndi zochepa, pambuyo akamaumba ayenera. kukonzedwa m'mphepete ntchito.Ubwino wa jekeseni nkhonya akamaumba ndi kuti palibe zinyalala pokonza, makulidwe khoma la mankhwala ndi kubalalitsidwa kwa zipangizo akhoza kulamulidwa bwino, kulondola kwa mankhwala woonda khosi ndi mkulu, pamwamba mankhwala ndi yosalala, ndi kupanga magulu ang'onoang'ono kungathe kuchitidwa mwachuma.The kuipa ndi kukwera mtengo kwa akamaumba zida, ndipo pamlingo wina okha oyenera nkhonya akamaumba mankhwala.

Njira yopangira nkhonya yokhotakhota imafuna kuti mpweya woponderezedwa wa sing'anga wa billet wa nkhungu yowomba ukhale woyera.Kuthamanga kwa mpweya ndi 0.55 ~ 1MPa;Extrusion kuwomba akamaumba kuthamanga ndi 0.2L ~ 0.62mpa, pamene amakokedwa kuwomba akamaumba kuthamanga nthawi zambiri chofunika monga mkulu monga 4MPa.Mu solidification pulasitiki, kupanikizika otsika kumapangitsa kupsinjika kwamkati kwazinthu kukhala kotsika, kubalalitsidwa kwa nkhawa kumakhala kofananira, komanso kupsinjika kochepa kumatha kuwongolera mphamvu, mphamvu, kupindika ndi zinthu zina zazinthu.