Tekinoroji yekubvisa cryogenic defiashing yakatanga kugadzirwa muma1950. Mukugadzirwa kwemichina yekubvisa cryogenic defiashing, yakapfuura nenguva nhatu dzakakosha. Tevedzerai muchinyorwa chino kuti munzwisise zvese.
(1) Muchina wekutanga wekubvisa tsvina unonzi cryogenic deflashing
Drum yakaomeswa nechando inoshandiswa semudziyo wekushanda pamipendero yakaomeswa nechando, uye chando chakaoma chinotanga chasarudzwa semuchina wekuisa mufiriji. Zvikamu zvinogadziriswa zvinoiswa mudrum, pamwe nekuwedzera zvimwe zvinhu zvinorwisana. Tembiricha iri mukati medrum inodzorwa kuti isvike padanho rekuti mipendero yacho inenge isina kusimba asi chigadzirwa chacho hachina kukanganiswa. Kuti chinangwa ichi chibudirire, ukobvu hwemipendero hunofanira kuva ≤0.15mm. Drum ndiyo chinhu chikuru chemuchina uye ine chimiro chemativi mana. Chinhu chikuru ndechekudzora nzvimbo yekubaya yedrum yakabudiswa, zvichiita kuti kutenderera kwemhepo kuitike kakawanda.
Ngoma inotenderera ichitenderedza divi rewachi kuti idonhe, uye mushure menguva yakati, mipendero yeflash inova isina kusimba uye maitiro emupendero anopedzwa. Kukanganisika kwemupendero wechando wechizvarwa chekutanga imupendero usina kukwana, kunyanya mipendero yeflash yakasara kumagumo emutsetse wekuparadzanisa. Izvi zvinokonzerwa nekugadzirwa kusina kukwana kwemould kana ukobvu hwakawandisa hwerabha pamutsetse wekuparadzanisa (hunopfuura 0.2mm).
（2）Muchina wechipiri wekubvisa tsvina unonzi cryogenic
Muchina wechipiri wekubvisa tsvina unonzi cryogenic wakaita zvinhu zvitatu zvakagadziridzwa zvichibva pachizvarwa chekutanga. Chekutanga, refrigerant inoshandurwa kuita liquid nitrogen. Aizi yakaoma, ine sublimation point ye -78.5°C, haina kukodzera mamwe marabha anoputika ane tembiricha yakaderera, senge silicone rabha. Liquid nitrogen, ine boiling point ye -195.8°C, yakakodzera marudzi ese erabha. Chechipiri, kuvandudzwa kwakaitwa kumudziyo unobata zvikamu zvinofanirwa kuchekwa. Inoshandurwa kubva padhiramu rinotenderera kuenda kubhandi re conveyor rakaita setrough semutakuri. Izvi zvinobvumira zvikamu kuti zvidonhe mumugero, zvichideredza zvakanyanya kuitika kwenzvimbo dzakafa. Izvi hazvingobatsiri chete kushanda zvakanaka asiwo zvinowedzera kurongeka kwemupendero. Chechitatu, pachinzvimbo chekuvimba chete nekubonderana pakati pezvikamu kuti zvibvise mipendero yeflash, fine-grained blasting media inounzwa. Mapellet esimbi kana epurasitiki akaoma ane saizi ye particle size ye 0.5~2mm anopfurwa pamusoro pezvikamu nekumhanya kwe 2555m/s, zvichigadzira simba guru rekurova. Kuvandudzwa uku kunopfupisa nguva yekutenderera.
（3）Muchina wechitatu wekubvisa tsvina unonzi cryogenic
Muchina wechitatu wekubvisa tsvina unoshandiswa pakugadzira zvinhu unobva pachizvarwa chechipiri. Mudziyo wezvikamu zvinofanira kuchekwa unochinjwa kuita bhasikiti rezvikamu rine madziro akaboorwa. Makomba aya anofukidza madziro ebhasikiti nedhayamita inosvika 5mm (yakakura kupfuura dhayamita yemabhomba) kuti zvibvumire mabhomba kuti apfuure nemaburi zvakanaka odzokera pamusoro pemidziyo kuti ashandiswezve. Izvi hazvingoiti chete kuti bhasikiti rikwanise kushanda zvakanaka asi zvinoderedzawo huwandu hwekuchengetedza kwemidziyo (mabhomba). Bhasikiti rezvikamu harina kuiswa muchina wekucheka, asi rine kutsveyama kwakati (40°~60°). Kona iyi yekutsveyama inoita kuti bhasikiti ritenderere nesimba panguva yekutsveyama nekuda kwekubatanidzwa kwemasimba maviri: rimwe isimba rinotenderera rinopihwa nebhasikiti pacharo richidonha, uye rimwe isimba re centrifugal rinogadzirwa nekutsveyama. Kana masimba maviri aya abatanidzwa, kufamba kwe360° kwenzvimbo dzose kunoitika, zvichibvumira zvikamu kubvisa mipendero yekupenya zvakaenzana uye zvachose kumativi ese.
Nguva yekutumira: Nyamavhuvhu-08-2023
