Ubuchwepheshe be-Cryogenic Defiashing basungulwe kuqala ngawo-1950s. Enqubweni yokuthuthuka kwama-crygenic defiashingmachines, kuye kwadlula izikhathi ezintathu ezibalulekile. Landela kule ndatshana ukuze uthole ukuqonda okuphelele.
(1) Umshini wokuqala we-cryogenic deflashing
I-Frozen Drum isetshenziswa njengesitsha esisebenzayo sokuhleleka kweqhwa, futhi iqhwa elomile likhethwe ekuqaleni njengesiqandisi. Izingxenye okufanele zilungiswe zilayishwe isigubhu, mhlawumbe ngokufakwa kwemidiya ethile yokusebenza engqubuzanayo. Izinga lokushisa elingaphakathi kwesigubhu lilawulwa ukuze lifinyelele esimweni lapho imiphetho ingama-brittle ngenkathi umkhiqizo ngokwawo uhlala ungathinteki. Ukuze uzuze le nhloso, ubukhulu bamaphethelo kufanele kube ≤0.15mm. I-Drum iyingxenye eyinhloko yemishini futhi iyi-octagonal ngesimo. Isihluthulelo ukulawula iphuzu lomthelela wabezindaba okhishwe, okuvumela ukujikeleza okugoqekile kuye kwenzeka kaninginingi.
I-Drum ijikeleza i-counterclockwise ukuze ikhunjulwe, nangemva kwesikhathi, ama-flash emashitho abe brittle futhi inqubo yokudla iphothuliwe. Isici sokuhlelwa kwesizukulwane sokuqala seqhwa sikuhle kakhulu ngokuhleleka, ikakhulukazi imiphetho ye-flash esele emikhawulweni yomugqa ohlukanisayo. Lokhu kubangelwa ukwakheka okunganele kokubumba noma ubukhulu obukhulu bengqimba yenjoloba emgqeni ohlukanisayo (mkhulu kuno-0.2mm).
(2) Umshini wesibili we-cryogenic deflashing
Umshini wesibili we-cryogenic deflashing wenze ukuthuthuka kathathu okusekelwe esizukulwaneni sokuqala. Okokuqala, isiqandisi siguqulwe saba yi-nitrogen ewuketshezi. I-ice elomile, enendawo yokuhlobisa -7.5 ° C, ayilungele ama-rubber athile okushisa aphansi, njenge-silicone rubber. I-nitrogen ewuketshezi, enendawo ebilayo ye -195.8 ° C, ilungele zonke izinhlobo zenjoloba. Okwesibili, kwenziwa intuthuko esitsheni esibamba izingxenye zizokwethelwa. Ishintshwa kusuka emgqonyeni ojikelezayo ibe yibhande lokuhambisa elibunjwe yimbethe. Lokhu kuvumela izingxenye ukuthi zikhunjulwe ku-groove, zinciphisa kakhulu ukuvela kwamabala ashonile. Lokhu akugcini nje ngokuthuthukisa ukusebenza kahle kepha futhi kuthuthukisa ukunemba kokuhleleka. Okwesithathu, esikhundleni sokuncika kuphela ekushayweni phakathi kwezingxenye zokususa imiphetho ye-flash, kwethulwa imidiya yokuqhuma okuhle. Ama-pellets epulasitiki wensimbi noma anzima ngosayizi we-0.5 ~ 2mm adutshulwe ebusweni bezingxenye ngejubane eliqondile le-2555m / s, edala amandla aphezulu umthelela. Lokhu kuthuthukiswa kakhulu kunciphisa isikhathi somjikelezo.
(3) Umshini wesithathu we-cryogenic deflashing
Umshini wesithathu we-cryogenic deflashing uwukuthuthuka okusekelwe esizukulwaneni sesibili. Isitsha sezingxenye okufanele sinqunywe siguqulwe sibe kubhasikidi wezingxenye odongeni olwenziwe nge-persorated. Lezi zimbobo zimboza izindonga zebhasikidi ngesilinganiso esingama-5mm (ezinkulu kunewabubanzi be-projectiles) ukuvumela ama-projectiles ukuba adlule ezimbozweni ngokushelela futhi abuyele phezulu kwemishini yokusebenzisa kabusha. Lokhu akupheleli kuphela amandla asebenzayo esitsheni kodwa futhi kunciphisa ivolumu yokugcina imithombo yezindaba (ama-projectiles) Le aghle yokuthambisa ibangela ukuba ibhasikidi ligobe ngamandla ngesikhathi senqubo yokudlalela ngenxa yenhlanganisela yamandla amabili: elinye lingamandla ajikelezayo anikezwe yibhasikidi ngokwawo, kanti elinye lingamandla we-centrifugal akhiqizwa umthelela weprojenti. Lapho la mandla amabili ahlanganisiwe, ukunyakaza okungu-360 ° ompnidirectional kwenzeka, kuvumela izingxenye ukuthi zisuse imiphetho ye-flash ngokufana futhi ngokuphelele kuzo zonke izinkomba.
Isikhathi sePosi: Aug-08-2023