Isingeniso somkhiqizo

Le chungechungeI-high vacuum annealing furnace yakhelwe ngokukhethekile izinto zensimbi 3D Ukuphrinta (SLS / SLM) Imishini yokwelashwa okushisayo yomjikelezo yocwaningo lwemboni, egxile kakhulu emkhakheni wezinto zokufakelwa zomzimba womuntu. Le mishini ihlanganisa i-high vacuum, ingakwazi ukudlulisa igesi, kanye ne-high-temperature sintering/Inhlanganisela yokwelashwa kwe-annealing, isetshenziselwa kakhulu ukususa ingcindezi esele eyenziwe ngesikhathi sokukhiqiza okungeziwe, ukwenza ngcono ukwakheka okuncane kwempahla, futhi ekugcineni kuthuthukise kakhulu ukusebenza kwezinto zokufakelwa kanye ne-biocompatibility.  

Idivayisi inezinga eliphezulu kakhulu lokungabi bikho komoya kanye nemvelo ehlanzekile yesithando somlilo, ingavimbela ngempumelelo ukuthi impushana yensimbi noma imikhiqizo eqediwe ingaboli, ingangcoli, noma ingadonsi izakhi ngesikhathi sokwelashwa okushisayo. Ihlangana nezinhlelo ezithuthukisiwe zokulawula okuzenzakalelayo nokuvikela okuphephile.RMS1300-35-36 Ingakwazi ukufeza ukukhiqizwa okusebenzayo, okonga amandla, okungenamuntu, okwenziwa ngobuningi ngenkathi iqinisekisa ikhwalithi yomkhiqizo, futhi iyisixhobo esibalulekile sokuqedela ukulungiswa kokukhiqiza izinto zensimbi ezisezingeni eliphezulu. 3D isixhobo esibalulekile sokuqedela ukulungiswa kwezinto zokufakelwa ezinyathelisiwe.

Izici zobuchwepheshe

Uhlelo olubili lwe-ultra-high vacuum kanye nenkathi:Izinga eliphezulu kakhulu lokungasebenzi lingafinyelela 6.7×10⁻⁴ Pa(isithando somlilo esingenalutho, esimile), izinga lokungabi bikho komoya lokusebenza lingcono kune 5×10⁻³ Pa.Kungakhethwa ukudlulisa igesi ye-argon ephelele, igesi ye-nitrogen ukuze kube nengcindezi encane noma engemihle yokubuyisela emuva, ukuze kuhlangatshezwane nezidingo zenqubo zezinto ezahlukene zensimbi (i-titanium alloy, i-cobalt-chromium alloy, i-tantalum, njll.).Umklamo we-furnace ongahlanzekile futhi ongcolisi.Ingaphakathi lodonga lwesithando somlilo lisebenzisa insimbi engagqwali esezingeni eliphezulu noma izikrini zokuvikela ezishisayo zensimbi ye-molybdenum, ngemuva kokwelashwa okushisayo okukhipha igesi, akukho okushiyekile okungadonsi.Isendlalelo sokuhlukanisa sibekwe phakathi kwezinto zokushisa nomsebenzi, ukuze kugwenywe ukungcola okubambisanayo, kuqinisekiswe ubumsulwa bempahla yokufakelwa, futhi kuhlangatshezwane nezidingo zokuhlanzeka kwezinga lezokwelapha. 

Ukulawulwa kwezinga lokushisa eliphezulu nokufana kwezinga lokushisa:Izinga lokushisa eliphezulu lokusebenzisa 1300℃(okubizwa ngegama RMS1300 imodeli).Ukushisa okuzimele kwezindawo eziningi, okuhlanganiswe PID + Ukulawulwa kohlelo lokushisa, ukufana kokushisa kwe-furnace ≤ ±3℃（1000℃ indawo yokushisa ezinzile).Kungenzeka ukusetha izigaba eziningi zokukhuphuka.‑Ukugcina izinga lokushisa‑Ikhava yenqubo yokwehlisa izinga lokushisa, isekela izindlela eziningi zokwelashwa kokushisa njengokushisela, ukubuyisela emuva, ukugcina, nokukhipha ingcindezi. 

Ukupholisa okusheshayo nokukhiqiza okufushane:Inikeza uhlelo lokupholisa igesi eliyindilinga (i-argon forced convection), isivinini sokupholisa singalungiswa, isikhathi sokupholisa sincishiswe kunesokupholisa kwemvelo. 40% noma ngaphezulu. Kwehlisa ngempumelelo isikhathi sokusebenza sesithando somlilo esisodwa, kuthuthukisa ukusetshenziswa kwemishini. 

Ukulawula ukuphepha nokuzenzakalelayo:Okuphelele PLC + Isikhombimsebenzisi somuntu nesithinta isikrini, ukwethulwa ngokuchofoza okukodwa ukuze kusebenze ngokuzenzakalelayo inqubo esethiwe.Inokuvikelwa okuphelele kwezokhuseleko okufana nokushisa ngokweqile, ingcindezi ngokweqile, ukuntuleka kwamanzi, ukukhiya i-vacuum pump, ukukhiya umnyango we-furnace, njll., ukuqwashisa ngokuzenzakalelayo ngezimo ezingajwayelekile nokukhulula ingcindezi. Ukusekela ukurekhodwa kwedatha yenqubo ngesikhathi sangempela kanye U Ukuthunyelwa kwediski, okulula ukulandelela ikhwalithi. 

Isakhiwo esiqinile nesithembekile:"ku-usayizi wedivayisi nenombolo yemodeli35‑36”Usayizi ongalingani wendawo yokusebenza esebenzayo:φ350 mm × 360 mm（ububanzi×ubude), kufaneleka ekucubunguleni okuningi kwama-implants amancane naphakathi.Ikhava yesithando somlilo epholisa ngamanzi kabili, isicelo se-flange sisebenzisa indandatho ye-fluoro-rubber eshisa kakhulu engenisiwe, ayivuqi umoya isikhathi eside.

Qaphela: Kungenziwa ngokwezifiso izinhlobo ezahlukene zezithando zomlilo zokuhlola nezithando zomlilo zezimboni ngokuya ngezimo zangempela zamakhasimende.

Izindawo zokusebenzisa

Izinto zokufakelwa emzimbeni womuntu: I-Titanium alloy (Ti6Al4V、Ti‑6Al‑7Nb), i-cobalt-chromium-molybdenum alloy (CoCrMo), i-pure tantalum, i-nickel-titanium memory alloy, nezinye izinto 3D Ukuqedela ukulungiswa kwezinto zokufakelwa ezinyathelisiwe, okuhlanganisa: 

Izinto zokufakelwa emathanjeni: izicibi ze-acetabular, izisekelo zamalunga edolo, izihlanganisi zomgogodla, izicelo zomgogodla.

Ukulungisa amanxeba: Amapuleti okuxhuma, izinti zangaphakathi, izikulufo zamathambo 

Ukufakelwa kwamazinyo: Izimpande zamazinyo ezenziwe ngokwezifiso, ama-abutment

 Ama-prosthetics okubuyisela ubuso be-craniofacial, izingxenye zamalunga okwenziwa 

Imishini namathuluzi ezokwelapha:Ukwelashwa kokukhulula ukucindezeleka nokuqinisa iziqondiso zokuhlinzwa, iziqondiso zama-orthopedic, nemishini ye-minimally invasive. 

I-Aerospace nezimboni eziphakeme:Ifanele i-titanium alloy, i-high-temperature alloy, insimbi engagqwali edinga ukubuyisela emuva ku-vacuum ephezulu 3D Izingxenye eziphrintiwe (le divayisi ingasetshenziswa futhi ekwelashweni okushisayo kwezingxenye eziyinqaba kwezinye izindawo ezingezona ezokwelapha).

Izinzuzo zomkhiqizo

Qeda ukukhulula ingcindezi yokuphrinta:Ukushisa endaweni ye-ultra-high vacuum kungakwazi ukususa ngempumelelo SLM Ukucindezeleka okushisayo nokucindezeleka kokuguquka kwesigaba okukhiqizwa ngesikhathi sokubunjwa, ukuvimbela ukuhlanekezela, ukugoba, noma ukuqhekeka kwezingxenye, ukuthuthukiswa kokuqina kobukhulu 50% ngaphezu kwalokho. 

Ukwandisa kakhulu ukusebenza kwemishini:Ukwelula, amandla okukhathala, nokuqina kokuphuka kwezinto ezicubunguliwe kuthuthukisiwe, amandla okudonsa angahlala ngaphakathi kobubanzi bezindinganiso zezinto, ahlangabezana ISO、ASTM izidingo zemishini zezinto zokufakelwa.

 Qinisekisa ukuhambisana kwe-biocompatibility yezinto zokufakelwa:Ayikho i-oxidation, ayikho ukungcola, ayikho ukuphuma kwezinto, ingaphezulu alenzi ungqimba oluyingozi lwe-oxide, lungaqhubeka ngokupholiswa noma ukugqokiswa, luhlangabezana nezimfuneko zokuhambisana. ISO 10993 Izinga lokuhambisana kwe-biocompatibility.

Nciphisa izindleko zenqubo, kuthuthukise ukusebenza: Ukusebenza okuzenzakalelayo kunciphisa ukungenelela komuntu, isithando somlilo esisodwa singakwazi ukucubungula izinto ezincane ezingamashumi ambalwa zokufakelwa.Ukupholisa okusheshayo kunciphisa umjikelezo, ukwanda kwezikhathi zokucubungula ngosuku 30% ngaphezu kwalokhu.Ukushisa okuseduze kwe-net kunciphisa isikhala sokucubungula esilandelayo, kunciphisa izinga lemikhiqizo eyonakele.

 Ukuzivumelanisa nezimo ezithambekayo ezintweni ezahlukene nezinqubo:Ngaphezu kwe-annealing, ingakwazi futhi ukufeza izinqubo ezifana ne-vacuum sintering, i-solid solution aging, ne-diffusion welding, ukusetshenziswa okuningi kwemishini eyodwa, ukuhlangabezana nezidingo zombili zocwaningo nokukhiqizwa okuningi. 

Kuphephile futhi kuthembekile, kuvumelana nezinqubo zokukhiqiza zezokwelapha:Izinto zokusebenza zilandela ngokuqinile CE、ISO 13485(izindinganiso zokuklama ezihambisanayo zokugunyazwa okukhethwayo), zingaxhunywa egumbini elihlanzekile, ukuze kube lula ukudlula ukuhlolwa kwesistimu yokuphatha ikhwalithi yokukhiqiza imishini yezokwelapha.