Tanthauzo
Kuponyera ndalama, komwe kumadziwikanso kuti kutayika kwa sera kapena kuponyera kolondola, ndi njira yoponyera yolondola yopanda kudula. Zida zopangira ndalama (nthawi zambiri zida zotsika zosungunuka monga sera) zimagwiritsidwa ntchito popanga zitsanzo zopangira ndalama ndikupanga gawo. Kenako utoto (refractory material) umayikidwa pamwamba pa module. Pambuyo kuyanika ndi kulimbitsa, gawoli limatenthedwa kuti lisungunuke zinthu zomwe zimapangidwira. Chigoba chopanda kanthu chimapangidwa, ndipo madzi achitsulo amatsanuliridwa mmenemo pambuyo pa kutentha kwakukulu, ndipo kuponyedwa kumapezeka pambuyo poyeretsa.
Makhalidwe a kuyika ndalama
1.Castings ali ndi kulondola kwapamwamba kwambiri (CT4-CT7); otsika pamwamba roughness (Ra1.6-6.3um). Chilolezo chodula cha ma castings chimachepetsedwa, ndipo kuponyedwa kwa mawonekedwe apafupi ndi ukonde kumatha kutheka.
2.Kutha kupanga zojambula zokhala ndi mipanda yopyapyala yokhala ndi mawonekedwe ovuta. Monga cholandirira kutsogolo (chopangidwa ndi mphete zamkati ndi zakunja ndi masamba 14). Mwachitsanzo, masamba a injini ali ndi makulidwe osachepera 0.7mm.
Zida za 3.Alloy sizimaletsedwa. Chitsulo, mkuwa, aluminiyamu, titaniyamu, magnesium, ndi zina zotero. Nickel-based high-temperature alloys okhala ndi malo osungunuka kwambiri, zitsulo zotsika kwambiri zosungunuka monga zinki ndi malata.
4.Kuyika ndalama kuli ndi malire. Njirayi ndi yovuta, nthawi yopangira ndi yayitali, ndipo kukula kwa ma castings sikuyenera kukhala kwakukulu.
Njira kuyenda
1.Kupanga ndi kupanga akamaumba.
Chikombole chomwe chimagwiritsidwa ntchito popanga phula chimatchedwa stamper. Zimafunika kuti zikhale zolondola kwambiri komanso zomaliza pamwamba. Zimapangidwa ndi aluminium alloy, chitsulo, fusible alloy, pulasitala kapena pulasitiki malinga ndi gulu lopanga.
2.Pangani mapepala a sera.
Zida za nkhungu za sera nthawi zambiri zimapangidwa ndi 50% paraffin ndi 50% stearic acid. Mukasungunuka, gwiritsani ntchito makina osindikizira phula kuti musindikize phula mu nkhungu. Pambuyo pa kulimba, chitulutseni ndikuchiyika m'madzi ozizira kuti chizizizira kuti chisawonongeke. Nthambi ya sprue nthawi zambiri imapangidwa ndi ndodo yamatabwa kapena ndodo ya aluminiyamu yoviikidwa mu chipolopolo cha sera cha 2-3mm, ndiyeno ndondomeko ya sera imakulungidwa ndi nkhungu ya sprue ndi mpeni wotentha wamagetsi kuti apange gawo.
3.Kupanga zipolopolo.
Lumikizani gawolo mu zokutira zopangidwa ndi ufa wa quartz ndi galasi lamadzi (kapena silika sol), tulutseni, ndikuwaza ndi mchenga wa quartz, ndiyeno muyike mu chowumitsa (chomwe chimagwiritsidwa ntchito kwambiri ndi ammonium chloride kapena aluminium chloride) kuti muwumitse mu Gulu la zipolopolo ndikubwereza ntchito zomwe zili pamwambazi mpaka makulidwe a chipolopolo cha 5-10 mm apangidwa.
4.Kuwotcha ndi kuwotcha.
Ikani chigobacho mu thanki ya madzi otentha pa 95-100 ℃ kuti musungunule nkhungu ya sera ndikuyiyandamitsa. Kenako kuphika chipolopolo nkhungu pa 800-900 ℃ (madzi galasi nkhungu chipolopolo) kuwonjezera mphamvu ndi kuchotsa nkhungu chipolopolo. Chinyezi, sera yotsalira, saponification, etc.
5.Kuthira ndi kuyeretsa.
Chigoba cha nkhungu chowotchedwa nthawi zambiri chimatsanuliridwa pamene chikutentha pambuyo potulutsidwa mu ng'anjo kuti apange zopangira zozungulira. Pambuyo kuponyera utakhazikika, kuwononga nkhungu chipolopolo, tulutsani kuponyera ndi kudula kuthira ndi riser dongosolo, ndiyeno kuchita kuponyera pambuyo processing ndondomeko, ndiye ntchito sandblasting, kuwombera kabotolo, zamchere otentha ndi electrochemical kuyeretsa njira kuchotsa chipolopolo otsalira ndi zomatira pamwamba ndi patsekeke mkati mwa kuponyera. Mchenga, chloride, etc. amachotsedwa kuti apeze zoponyedwa ndi malo osalala.
