Ukuphepha kwempuphu emhlophe ye-corundum ekupholiseni amadivayisi ezokwelapha
Ngena kunoma iyiphi idivayisi yezokwelaphaukupholishaeshabhu futhi ungazwa umsindo ophansi womshini. Izisebenzi ezigqoke amasudi angangeni uthuli zisebenza kanzima, zine-forceps zokuhlinzwa, izitho zokufakelwa ezihlangene, kanye nezimbobo zokubhoboza amazinyo ezikhanya ngokubanda ezandleni zazo - la madivayisi asindisa impilo awakwazi ukugwema inqubo ebalulekile ngaphambi kokushiya ifektri: ukupholisha. Futhi i-white corundum powder iyisandla "esimangalisayo" esibalulekile kule nqubo. Kodwa-ke, eminyakeni yamuva nje, ngokudalulwa kwamacala amaningana e-pneumoconiosis yabasebenzi, imboni isiqalile ukuhlola kabusha ukuphepha kwale mpuphu emhlophe.
1. Kungani kudingeka ukupholisha amadivayisi ezokwelapha?
Emikhiqizweni "ebulalayo" efana nama-blade okuhlinzwa kanye nokufakelwa kwamathambo, ukuqeda ubuso akuyona inkinga yobuhle, kodwa umugqa wokuphila nokufa. I-burr enobukhulu be-micron ingabangela ukulimala kwezicubu noma ukukhula kwamagciwane.I-white corundum micropowder(ingxenye eyinhloko i-α-Al₂O₃) inamandla aqinile angu-9.0 esikalini sobulukhuni be-Mohs. Ingasika kahle ama-metal burrs. Ngesikhathi esifanayo, izici zayo ezimhlophe azingcolisi ubuso bento yokusebenza. Ifaneleka kakhulu ezintweni zokwelapha ezifana ne-titanium alloy kanye nensimbi engagqwali.
Unjiniyela uLi wasefektri ethile yemishini eDongguan uthe ngokwethembeka: “Ngike ngazama ezinye izinto zokubhula ngaphambili, kodwa noma ngabe impuphu yensimbi esele yabuyiselwa amakhasimende noma ukusebenza kahle kokupholisha kwakuphansi kakhulu.I-corundum emhlophe Isika ngokushesha nangokuhlanzekile, futhi izinga lokukhiqiza likhuphuke ngqo ngo-12% - izibhedlela ngeke zamukele izitho zokufakelwa ezihlangene ezinemihuzuko.” Okubaluleke kakhulu, ukungangeni kwayo kwamakhemikhali akuhambisani neze nemishini. 7. Igwema ingozi yokungcoliswa kwamakhemikhali okulethwa ukupholisha, okubalulekile emikhiqizweni ethintana ngqo nomzimba womuntu.
2. Izinkinga zokuphepha: olunye uhlangothi lwempuphu emhlophe
Nakuba le mpuphu emhlophe iletha izinzuzo zenqubo, ifihla namaphuzu engozi angenakunakwa.
Ukuhogela uthuli: "umbulali ongabonakali" ohamba phambili
Ama-micropowders anosayizi wezinhlayiya ezingama-micron angu-0.5-20 kulula kakhulu ukuwantanta. Imininingwane evela esikhungweni sendawo sokuvimbela nokwelapha emsebenzini ngo-2023 ibonise ukuthi izinga lokutholakala kwe-pneumoconiosis phakathi kwabasebenzi ababevezwe ekujuleni okuphezulu kothuli olumhlophe lwe-corundum isikhathi eside lifinyelele ku-5.3%. 2. “Nsuku zonke ngemva komsebenzi, kuba nongqimba lomlotha omhlophe kumaski, kanti isikhwehlela esikhwehlele sinobucwebe obunesihlabathi,” kusho umlungisi wezinto ongafuni ukudalulwa igama lakhe. Okunzima kakhulu ukuthi isikhathi sokukhulelwa kwe-pneumoconiosis singaba yiminyaka eyishumi. Izimpawu zokuqala zincane kodwa zingalimaza izicubu zamaphaphu ngokungenakuguqulwa.
Isikhumba namehlo: izindleko zokuthintana ngqo
Izinhlayiya ze-micropowder zibukhali futhi zingabangela ukulunywa noma ngisho nokuklwebheka uma zifika esikhumbeni; uma zingena emehlweni, zingaklwebheka kalula i-cornea. 3. Umbiko wengozi ovela efektri yemishini eyaziwayo ye-OEM ngo-2024 ukhombisile ukuthi ngenxa yokuguga kwesivalo sezibuko zokuzivikela, isisebenzi safaka uthuli emehlweni aso lapho sishintsha isivikelo, okwaholela ekuqhekekeni kwe-cornea kanye nokuvalwa kwamasonto amabili.
Isithunzi sezinsalela zamakhemikhali?
Nakuba i-corundum emhlophe ngokwayo izinzile ngamakhemikhali, imikhiqizo esezingeni eliphansi ingaba nenani elincane lezinsimbi ezisindayo uma iqukethe i-sodium ephezulu (Na₂O>0.3%) noma ingafakwanga kahle. 56. I-ejensi yokuhlola yake yathola u-0.08% Fe₂O₃6 eqenjini le-corundum emhlophe elibhalwe ukuthi “ibanga lezokwelapha” – lokhu ngokungangabazeki kuyingozi efihliwe yama-stents enhliziyo adinga ukuhambisana ngokuphelele kwezinto eziphilayo.
3. Ukulawula ubungozi: faka “impuphu eyingozi” ekhejini
Njengoba ingenakushintshwa ngokuphelele, ukuvimbela nokulawula kwesayensi kuyindlela kuphela yokuphuma. Izinkampani ezihamba phambili embonini ziye zahlola "izikhiye zokuphepha" eziningi.
Ukulawula ubunjiniyela: Bulala uthuli emthonjeni
Ubuchwepheshe bokupholisha ngamanzi buthola ukuthandwa ngokushesha – ukuxuba i-micro powder nesixazululo samanzi ku-grinding paste, inani lokukhishwa kothuli lehla ngaphezu kuka-90%6. Umqondisi we-workshop wefektri yokufakelwa ehlangene eShenzhen wenza izibalo: “Ngemuva kokushintshela ekugayeni ngamanzi, umjikelezo wokufaka esikhundleni sesihlungi somoya omusha weluliwe kusukela esontweni eli-1 kuya ezinyangeni ezi-3. Kubonakala sengathi imishini ibiza kakhulu ngo-300,000, kodwa isinxephezelo sezifo zomsebenzi esilondoloziwe kanye nokulahlekelwa kokumiswa komkhiqizo kuzozikhokhela eminyakeni emibili.” Uhlelo lokukhipha umoya lwendawo oluhlanganiswe netafula lokusebenza lokucindezela okungekuhle lungavimbela uthuli oluphumayo2.
Ukuvikelwa komuntu siqu: umugqa wokugcina wokuzivikela
Amamaski othuli e-N95, izibuko zokuvikela ezivalwe ngokuphelele, kanye nama-jumpsuit alwa nokungaguquguquki kuyimishini ejwayelekile yabasebenzi. Kodwa ubunzima bokusebenzisa busekuhambisaneni - izinga lokushisa le-workshop lidlula ama-35℃ ehlobo, futhi abasebenzi bavame ukukhumula amamaski abo ngasese. Ngenxa yalesi sizathu, ifektri eSuzhou yethule umshini wokuphefumula ohlakaniphile one-micro fan, ocabangela kokubili ukuvikelwa kanye nokuphefumula, futhi izinga lokwephulwa kwemithetho lehle kakhulu.
Ukuthuthukiswa kwezinto: kuzalwa i-micro powder ephephile
Isizukulwane esisha sezokwelapha ezine-sodium ephansii-corundum emhlophe(I-Na₂O<0.1%) inokungcola okuncane kanye nokusatshalaliswa kosayizi wezinhlayiya ezigxilile kakhulu ngokuhluza okujulile kanye nokuhlukaniswa komoya. 56. Umqondisi wezobuchwepheshe wenkampani ehluza eSifundazweni saseHenan ubonise ukuhlolwa okuqhathanisayo: 2.3μg/cm² yensalela ye-aluminium itholakale ebusweni bethuluzi ngemuva kokupholisha ngempuphu encane yendabuko, kuyilapho umkhiqizo one-sodium ephansi wawungu-0.7μg/cm² kuphela, ngaphansi kakhulu komkhawulo ojwayelekile we-ISO 10993.
Isikhundla sikai-white corundum micro powderemkhakheni wokupholisha amadivayisi ezokwelapha kuzohlala kunzima ukuwunyakazisa esikhathini esifushane. Kodwa ukuphepha kwawo akuveli ngokwemvelo, kodwa umncintiswano oqhubekayo phakathi kobuchwepheshe bezinto ezibonakalayo, ukulawulwa kobunjiniyela kanye nokuphathwa kwabantu. Lapho uthuli lokugcina olukhululekile eshabhu lubanjwa, lapho ubuso obubushelelezi bethuluzi ngalinye lokuhlinza bungasasebenzi ngempilo yabasebenzi – sinesihluthulelo “sokupholisha okuphephile”. Phela, ubumsulwa bokwelashwa kufanele buqale enkambisweni yokuqala yokukukhiqiza.