I-investment casting, eyaziwa nangokuthi i-wax-loss casting, isikhunta sengcina esenziwe ngengcina esizophonswa sibe izingxenye, bese isikhunta sengcina simbozwa ngodaka, okuyisikhunta sodaka. Ngemva kokumisa isikhunta sobumba, ncibilikisa isikhunta se-wax sangaphakathi emanzini ashisayo. Isikhunta sobumba sesikhunta se-wax esincibilikisiwe siyakhishwa futhi sosiwe sibe isikhunta sobumba. Yake yosiwe. Ngokuvamile, lapho kwenziwa isikhunta sodaka, isango lishiywe, bese insimbi encibilikisiwe ithululelwa esangweni. Ngemuva kokupholisa, izingxenye zensimbi ezidingekayo zenziwe.

Izizukulwane ezedlule zokutshala izimali:

Amagama angukhiye: kudla isikhathi futhi kuyabiza

Ukukhishwa kwe-investimenti kubizwa nangokuthi i-wax loss casting. Indlela yokulahlekelwa ingcina e-China yaqala eNtwasahlobo naseNkwindla futhi inomlando omude.

Ukuphonswa kwe-wax elahlekile kuyiphethini yengcina eyenziwe ngengcina ukuze iphonswe izingxenye, bese iphethini ye-wax igcotshwe ngodaka, okuyiphethini yodaka. Ngemva kokumisa isikhunta sobumba, ncibilikisa isikhunta se-wax sangaphakathi emanzini ashisayo. Isikhunta sobumba sesikhunta se-wax esincibilikisiwe siyakhishwa futhi sosiwe sibe isikhunta sobumba.

Izinyathelo zokutshala izimali zephrinta ye-3D zethulwa ngezansi.

Izinyathelo eziyisishiyagalombili zokusakaza kwe-investimenti yokuphrinta ye-3D:

1. I-CAD Modelling, Igwebu Elilahlekile Lokuphrinta Kwe-3D

Amafayela edijithali emodeli yokusansimbi encibilikisiwe aklanywa kusetshenziswa isofthiwe ye-CAD, bese athunyelwa ngefomethi ye-STL futhi aphrintwe kusetshenziswa iphrinta ye-3D (ubuchwepheshe be-SLA bunconyelwe iphrinta ye-3D). Inqubo yokunyathelisa ngokuvamile ithatha amahora ambalwa kuphela.

2. Hlola ukuthi azikho yini izimbobo kumodeli yokubunjwa okuncibilikisiwe.

Ukupholisha ubuso kanye nomunye umsebenzi wangemva kokucubungula kwenziwa kumodeli ephrintiwe ye-3D ukuze kususwe i-lamination engaphezulu. Bese uhlola ngokucophelela ukuthi imodeli inazo izintuba noma imifantu.

3. Ukugqoka okungaphezulu

Lapho imodeli ithunyelwa ku-Foundry, ubuso bemodeli buqala ukumbozwa nge-ceramics slurry. Isendlalelo se-slurry kufanele sixhunywe eduze nemodeli yokulingisa i-investimenti, futhi ikhwalithi yesendlalelo se-slurry sokuqala izothinta ngokuqondile ikhwalithi engaphezulu yokulingisa kokugcina.

4. Ukubhoboza

Ngemuva kokuthi i-ceramics slurry iboshwe, ungqimba lwangaphandle lwe-ceramics slurry yisihlabathi se-viscous. Ngemuva kokumisa, phinda izinyathelo zokugcoba i-slurry kanye nesihlabathi sokunamathela kuze kube yilapho igobolondo lifinyelela ubukhulu obufunayo.

5. Ukugazinga nokuhlanza

Lapho igobolondo lomile, lifakwa esithandweni futhi lishiswe kuze kube yilapho wonke amamodeli ancibilikayo angaphakathi eshiswa ahlanzekile. Ngalesi sikhathi, igobolondo lizoba yi-ceramics iyonke ngenxa yokushisa. Ngemuva kokukhishwa esithandweni somlilo, indawo yangaphakathi yesithando somlilo kufanele ihlanzwe kahle ngokugeza, bese yomiswa futhi ifakwe ngaphambili.

6. Ukulingisa

Ngokulahla, ukucindezela, ukumunca i-vacuum namandla amaphakathi, insimbi ewuketshezi encibilikisiwe igcwaliswa ngegobolondo elingenalutho bese iyapholiswa.

7. Ukumodela

Ngemva kokuba insimbi ewuketshezi ipholile ngokuphelele futhi yakhiwe, igobolondo le-ceramic ngaphandle kwensimbi lihlanzwa ngokudlidliza kwemishini, ukuhlanzwa kwamakhemikhali noma ukushaywa kwamanzi.

8. Ngemuva kokucubungula

Ukunemba kobukhulu, ukuminyana kanye nezinye izici zemishini zamamodeli ensimbi nazo zingakalwa ngokwelashwa kwendawo noma ukwenziwa okwengeziwe.

Iphrinta ye-SLA 3D ye-SHDM ingasetshenziswa ukwenza isikhunta sepulasitiki ngokusebenzisa izinto ezikwazi ukumelana nezinga lokushisa eliphezulu ne-fusible. Ifaneleka kakhulu ukuphonsa izingxenye ngendlela yokulahlekelwa kwe-wax.

Ngemuva kokuthi ukuphrinta kwesikhunta sepulasitiki kuqediwe, izinhlayiya ezisele zempuphu zizosuswa, bese kusetshenziselwa ukungena kwe-wax ukuze kuqinisekiswe ukuthi isikhunta sepulasitiki sivaliwe futhi sihlanzekile ukuze kuthuthukiswe ikhwalithi yezingxenye zokutshala izimali.

Inqubo yokwelapha elandelayo iyafana nendlela yokukhiqiza yendabuko: okokuqala, ukugqoka kwe-ceramic kuhlanganiswe ebusweni besikhunta sepulasitiki, bese kufakwa kuhhavini.

Lapho izinga lokushisa lidlula i-700 C, isikhunta sepulasitiki sivutha ngokuphelele ngaphandle kwanoma iyiphi insalela, okubuye kube umsuka wegama lendlela yokulahlekelwa kwe-wax.

Ukuphrinta kwe-3D kungathola idizayini eyinkimbinkimbi kakhulu, futhi kwenze isikhunta sokutshala imali ngokushesha, kalula nangomnotho. Isetshenziswa kabanzi kwezezimoto, ubucwebe, ukukhiqiza imishini nezinye izimboni.