Incazelo
Ukufakwa kwe-investimenti, okubuye kwaziwe njengokuphonswa kwe-wax okulahlekile noma ukusakaza okunembayo, kuyindlela yokufaka enembayo enokuncane futhi engasikiwe. Izinto zokubumba zokutshalwa kwezimali (imvamisa izinto ezincibilika eziphansi njenge-wax) zisetshenziselwa ukwenza amasampula okubumba utshalomali futhi zakhe imojuli. Khona-ke upende (impahla ephikisayo) isetshenziswa ebusweni bemodyuli. Ngemuva kokumisa nokuqiniswa, i-module iyashiswa ukuze incibilike into yokubumba. Igobolondo elingenalutho liyakhiwa, futhi uketshezi lwensimbi luthululelwa kulo ngemuva kokushisa okuphezulu, futhi ukukhishwa kutholakala ngemva kokuhlanza.
Izici zokutshala imali
I-1.I-Castings inokunemba okuphezulu kwe-dimensional (CT4-CT7); ubulukhuni obuphezulu obuphansi (Ra1.6-6.3um). Imvume yokusika yokulingisa iyancipha, futhi ukulingisa okuseduze kwe-net-shape kungafinyelelwa.
2.Iyakwazi ukukhiqiza ukulingwa kwezindonga ezincane ezinomumo onzima. Njengesamukeli sangaphambili (esakhiwe izindandatho zangaphakathi nangaphandle nama-blade ayi-14). Isibonelo, ama-blade enjini anobukhulu obuncane bodonga obungu-0.7mm.
3.Izinto ze-alloy azikhawulelwe. Insimbi, ithusi, i-aluminiyamu, i-titanium, i-magnesium, njll. Ama-alloys asuselwa ku-nickel asezingeni eliphezulu anamaphuzu aphezulu ancibilika, izinsimbi ezincibilika eziphansi njenge-zinc nethini.
4.Ukutshala imali kunemikhawulo ethile. Inqubo inzima, umjikelezo wokukhiqiza mude, futhi usayizi wokulingisa akufanele ube mkhulu kakhulu.
Ukugeleza kwenqubo
1.Dizayina futhi wenze ukubumba.
Isikhunta esisetshenziselwa ukwenza iphethini ye-wax ibizwa ngokuthi i-stamper. Kudingeka ukuthi kube nokunemba okuphezulu kobukhulu kanye nokuqedwa kwendawo. Yenziwe nge-aluminium alloy, insimbi, i-fusible alloy, i-plaster noma impahla yepulasitiki ngokusho kweqoqo lokukhiqiza.
2.Yenza amaphethini we-wax.
Izinto zesikhunta se-wax ngokuvamile zenziwe ngopharafini ongu-50% no-50% we-stearic acid. Ngemva kokuncibilika, sebenzisa umshini wokucindezela we-wax ukuze ucindezele izinto ezinamathisela i-wax esibunjeni. Ngemuva kokuqiniswa, yikhiphe futhi uyifake emanzini abandayo ukuze uphole ukuze uvimbele ukubola. Isikhunta se-sprue ngokuvamile senziwe ngenduku yokhuni noma induku ye-aluminium efakwe egobolondweni le-wax engu-2-3mm, bese amaphethini we-wax ashiselwa kusikhunta se-sprue ngommese wokushisa kagesi ukuze enze imojuli.
3.Ukwenza amagobolondo.
Gcoba imojula engxenyeni eyenziwe nge-quartz powder kanye nengilazi yamanzi (noma i-silica sol), uyikhiphe, uyifafaze ngesihlabathi se-quartz, bese uyifaka ku-hardener (evame ukusetshenziswa i-ammonium chloride noma i-aluminium chloride) isisombululo sokuyenza ibe lukhuni ibe Isendlalelo amagobolondo bese uphinda imisebenzi engenhla kuze kube ugqinsi lwegobolondo lwe-5-10 mm.
4.Ukukhipha inwayi nokugazinga.
Faka igobolondo elibunjiwe ethangini lamanzi ashisayo ku-95-100℃ ukuze uncibilikise isikhunta se-wax bese usintanta ngaphandle. Bese ubhaka igobolondo lesikhunta ku-800-900 ℃ (igobolondo lesikhunta sengilazi yamanzi) ukwandisa amandla futhi ususe igobolondo lesikhunta. Umswakama, ingcina eyinsalela, i-saponification, njll.
5.Ukuthulula nokuhlanza.
Igobolondo lesikhunta elishisiwe livame ukuthululwa ngenkathi kushisa ngemva kokukhishwa esithandweni ukuze kukhiqizwe ama-castings anezindonga ezincane. Ngemuva kokuba ukubunjwa sekupholile, bhubhisa igobolondo lesikhunta, khipha ukubunjwa futhi unqume uhlelo lokuthulula nokukhuphuka, bese wenza inqubo yokukhipha emva kokucubungula, okungukuthi, sebenzisa i-sandblasting, ukudubula ukuqhuma, ukubilisa i-alkali kanye nezindlela zokuhlanza i-electrochemical ukususa igobolondo elisele kanye ne-adhesive ebusweni kanye nengaphakathi langaphakathi le-casting. Isihlabathi, i-chloride, njll. kuyasuswa ukuze kutholwe ukulingwa ngezindawo ezibushelelezi.
