I-Silicone ukubumba, eyaziwa nangokuthiukukhishwa kwe-vacuum, iyindlela esheshayo neyongayo yokukhiqiza amaqoqo amancane ezingxenye ezibunjiwe zomjovo.NgokuvamileI-SLAPubucikoasetshenziswa njenge-prototype, isikhunta senziwe ngezinto ze-silicone, futhi impahla ye-polyurethane PU iphonswa ngenqubo yomjovo we-vacuum ukwenza isikhunta esiyinhlanganisela.
Amamojula ayinkimbinkimbi angenza ibhalansi phakathi kwemiphumela yokukhiqiza yekhwalithi ephezulu, izindlela zokukhiqiza ezongayo kanye nezikhathi zokuhola ezifanele.Okulandelayo yizinzuzo ezi-3 ezibalulekile zenqubo yokubumba ye-silicone.
Izinga eliphezulu lokunciphisa, ukunemba okuphezulu komkhiqizo
Iukukhishwa kwe-vacuumizingxenye zingakwazi ukukhiqiza kabusha ngokunembile isakhiwo, imininingwane kanye nokuthungwa kwezingxenye zangempela, futhi zinikeze izingxenye ezibunjwe ngomjovo wekhwalithi ephezulu nokunemba okuphezulu kwezinga lezimoto.
Ingenalo isikhunta sensimbi esibizayo
Ukwenziwa ngokwezifiso kweqoqo elincane lezingxenye ezibunjwe ngomjovo kungaqedwa ngaphandle kokutshala imali ezibunjeni zensimbi ezibizayo nezidla isikhathi.
Ukulethwa komkhiqizo okusheshayo
UkuthathaIsengezo se-JSa njengesibonelo, amamojula ayinkimbinkimbi angama-200 angaqedwa cishe ezinsukwini eziyi-7 kusukela ekuklanyweni kuya ekulethweni.
Ngaphezu kwalokho, ngenxa yokuguquguquka okuhle nokunwebeka kwesikhunta se-silicone, ezingxenyeni ezinezakhiwo eziyinkimbinkimbi, amaphethini amahle, akukho mithambeka edilikayo, ama-demoulding slopes, kanye nama-grooves ajulile, angakhishwa ngokuqondile ngemva kokuthululwa, okuyisici esiyingqayizivele uma kuqhathaniswa. nezinye isikhunta.Okulandelayo incazelo emfushane yenqubo yokwenza isikhunta se-silicone.
Isinyathelo 1: Yenza i-Prototype
Ikhwalithi yengxenye ye-silicone yokubunjwa incike kwikhwalithi ye-prototype.Singafutha ukuthungwa noma senze eminye imiphumela yokucubungula ebusweni beSLA prototypea ukulingisa imininingwane yokugcina yomkhiqizo.Isikhunta se-silicone sizokhiqiza kabusha ngokunembile imininingwane nokuthungwa kwe-prototype, ukuze ubuso besikhunta se-silicone bugcine izinga eliphezulu lokuvumelana neloqobo.
Isinyathelo sesi-2: Yenza i-Silicone Mold
Isikhunta esithululwayo senziwe nge-silicone ewuketshezi, eyaziwa nangokuthi isikhunta se-RTV.Irabha ye-Silicone izinzile kumakhemikhali, iyazikhulula futhi iyavumelana nezimo, inciphisa ukushwabana futhi iphindaphinde imininingwane yengxenye ngokuphumelelayo ukusuka ku-prototype kuye kwisikhunta.
Izinyathelo zokukhiqiza zesikhunta se-silicone zimi kanje:
§Namathisela itheyiphu endaweni eyisicaba eduze kwesibonelo ukuze uvuleke kalula isikhunta ngokuhamba kwesikhathi, okuzoba indawo ehlukanisayo yesikhunta sokugcina.
§Ukulenga i-prototype ebhokisini, ukubeka izinti zeglue engxenyeni yokusetha i-sprue kanye ne-vent.
§Jova i-silicone ebhokisini bese uyicwenga, bese welapha kuhhavini eku-40℃ amahora angu-8-16, okuncike kumthamo wesikhunta.
Ngemuva kokuthi i-silicone iphulukisiwe, ibhokisi kanye nenduku yeglue iyasuswa, i-prototype ikhishwa ku-silicone, kwakhiwa umgodi, futhiisikhunta se-siliconeyenziwe.
Isinyathelo sesi-3: Ukukhipha i-vacuum
Okokuqala faka isikhunta se-silicone kuhhavini bese ushisa kuqala ku-60-70 ℃.
§Khetha i-ejenti efanele yokukhulula futhi uyisebenzise ngendlela efanele ngaphambi kokuvala isikhunta, okubaluleke kakhulu ukugwema ukunamathela kanye nokonakala kwendawo.
§Lungisa inhlaka ye-polyurethane, uyishise ifike ku-40 ° C ngaphambi kokusetshenziswa, hlanganisa inhlaka yezingxenye ezimbili ngesilinganiso esifanele, bese ugubha ngokugcwele futhi ukhiphe ngaphansi kwe-vacuum imizuzwana engu-50-60.
§I-resin ithululelwa esikhunjini segumbi le-vacuum, futhi isikhunta siyalapheka futhi kuhhavini.Isikhathi esimaphakathi sokwelapha cishe ihora elingu-1.
§Susa ukubunjwa kusikhunta se-silicone ngemuva kokwelapha.
§Phinda lesi sinyathelo ukuze uthole isikhunta se-silicone esengeziwe.
Ukukhipha i-vacuumInqubo yokukhiqiza isikhunta esheshayo ethandwa kakhulu.Uma kuqhathaniswa nenye isevisi ye-prototyping, izindleko zokucubungula ziphansi, umjikelezo wokukhiqiza mfushane, futhi izinga lokulingisa liphakeme, elifanele ukukhiqizwa kwenqwaba encane.Ithandwa imboni yobuchwepheshe obuphezulu, ukukhishwa kwe-vacuum kungasheshisa inqubekelaphambili yocwaningo nentuthuko.Ngesikhathi socwaningo nentuthuko, ukumoshwa kwezimali okungadingekile nezindleko zesikhathi kungagwenywa.
Umbhali:Eloise