I-cryogenic defiashing technology yaqala ukusungulwa ngawo-1950s.Enqubweni yokuthuthukiswa kwemishini ye-cryogenic defiashing, iye yadlula ezikhathini ezintathu ezibalulekile.Landela kulesi sihloko ukuze uthole ukuqonda okuphelele.
(1) Umshini wokuqala we-cryogenic deflashing
Isigubhu esiqandisiwe sisetshenziswa njengesiqukathi sokusebenza esiqandisiwe, futhi iqhwa elomile ekuqaleni likhethwa njengesiqandisi.Izingxenye ezizolungiswa zilayishwa esigubhini, ngokunokwenzeka ngokungezwa kwemidiya ethile esebenzayo engqubuzanayo.Izinga lokushisa ngaphakathi kwesigubhu lilawulwa ukuze lifinyelele esimweni lapho imiphetho ishwabene kuyilapho umkhiqizo ngokwawo uhlala ungathinteki.Ukuze ufinyelele lo mgomo, ukujiya kwemiphetho kufanele kube ≤0.15mm.Isigubhu siyingxenye eyinhloko yamathuluzi futhi sinomumo octagonal.Okubalulekile ukulawula iphoyinti lomthelela lemidiya ekhishiwe, okuvumela ukuzungeza ukuthi kwenzeke ngokuphindaphindiwe.
Isigubhu sizungeza ngokuphambene newashi ukuze siwe, futhi ngemva kwesikhathi esithile, imiphetho ye-flash iba brittle futhi inqubo yokuhlela iyaqedwa.Isici sokuhlela okuqandisiwe kwesizukulwane sokuqala akuphelele, ikakhulukazi imiphetho ye-flash eyinsalela ekugcineni komugqa wokuhlukanisa.Lokhu kubangelwa ukwakheka kwesikhunta okunganele noma ukujiya okweqile kongqimba lwenjoloba emgqeni wokuhlukanisa (omkhulu kuno-0.2mm).
(2) Umshini wesibili we-cryogenic deflashing
Umshini wesibili we-cryogenic deflashing wenze ukuthuthukiswa okuthathu ngokusekelwe esizukulwaneni sokuqala.Okokuqala, isiqandisi sishintshwa sibe yi-nitrogen ewuketshezi.Iqhwa elomile, elinephuzu le-sublimation elingu -78.5°C, aliwafanele amarabha athile anezinga lokushisa eliphansi eliphukayo, njengerabha ye-silicone.I-nitrogen ewuketshezi, enephuzu lokubila elingu -195.8°C, ilungele zonke izinhlobo zenjoloba.Okwesibili, kwenziwe ngcono isiqukathi esigcina izingxenye ezizosikwa.Iyashintshwa isuka kusigubhu ezungezayo iye ebhandeni lokuthutha elimise okwe-trough njengesithwali.Lokhu kuvumela izingxenye ukuthi ziwele emgodini, kunciphisa kakhulu ukwenzeka kwamabala afile.Lokhu akugcini nje ngokuthuthukisa ukusebenza kahle kodwa futhi kuthuthukisa ukunemba kokuhlela.Okwesithathu, esikhundleni sokuthembela kuphela ekungqubuzaneni phakathi kwezingxenye ukuze kukhishwe imiphetho ye-flash, imidiya yokuqhumisa ehlanjululwe kahle iyethulwa.Amapulangwe ensimbi noma epulasitiki aqinile anosayizi wezinhlayiyana ongu-0.5 ~ 2mm adutshulwa ebusweni bezingxenye ngesivinini esiwumugqa esingu-2555m/s, okwenza amandla okuthonya abalulekile.Lokhu kuthuthukiswa kusifinyeza kakhulu isikhathi somjikelezo.
(3) Umshini wesithathu we-cryogenic deflashing
Umshini wesithathu we-cryogenic deflashing uyintuthuko esekelwe esizukulwaneni sesibili.Isitsha sezingxenye ezizosikwa siyashintshwa sibe ubhasikidi wezingxenye onezindonga ezinezimbobo.Lezi zimbobo zimboza izindonga zikabhasikidi ngobubanzi obungaba ngu-5mm (obukhulu kunobubanzi be-projectile) ukuvumela ama-projectiles ukuba adlule emigodini ngokushelela futhi abuyele phezulu kwempahla ukuze iphinde isetshenziswe.Lokhu akugcini nje ukwandisa umthamo osebenzayo wesiqukathi kodwa futhi kunciphisa umthamo wokugcina wemithombo yethonya (ama-projectile).Izingxenye zebhasikidi azibekwe ziqondile emshinini wokunquma, kodwa zinokuthambekela okuthile (40°~60°).Le engeli yokuthambekela ibangela ubhasikidi ukuthi ujike ngamandla phakathi nenqubo yokuhlela ngenxa yenhlanganisela yamandla amabili: enye ingamandla ajikelezayo anikezwa ubhasikidi ngokwawo ewa, kanti enye amandla amaphakathi akhiqizwa umthelela we-projectile.Uma lawa mandla amabili ehlanganiswa, ukunyakaza kwe-omnidirectional okungu-360° kwenzeka, okuvumela izingxenye ukuthi zisuse imiphetho ye-flash ngokufanayo futhi ngokuphelele kuzo zonke izinkomba.
Isikhathi sokuthumela: Aug-08-2023