Ukuphepha kwe-white corundum powder ekupholiseni idivayisi yezokwelapha
Hamba uye kunoma iyiphi idivayisi yezokwelaphaukupholishaindawo yokusebenzela futhi ungezwa umsindo ophansi womshini. Abasebenzi abagqoke amasudi angangeni uthuli basebenza kanzima, benama-forcep okuhlinzwa, izitho zokwenziwa ezihlangene, nezinsimbi zamazinyo ezicwebezelayo ezandleni zabo - le mishini esindisa ukuphila ayikwazi ukugwema inqubo ebalulekile ngaphambi kokushiya imboni: ukupholisha. Futhi i-white corundum powder "isandla somlingo" esibalulekile kule nqubo. Kodwa-ke, eminyakeni yamuva, ngokuvezwa kwamacala amaningana e-pneumoconiosis yabasebenzi, imboni isiqale ukuhlola kabusha ukuphepha kwale powder emhlophe.
1. Kungani kudingekile ukupholisha imishini yezokwelapha?
Emikhiqizweni “ebulalayo” efana nezindwani zokuhlinza kanye nokufakwa kwamathambo, ukuqedwa kwendawo akuyona indaba yobuhle, kodwa kuwumugqa wokuphila nokufa. I-micron-size burr ingase ibangele ukulimala kwezicubu noma ukukhula kwebhaktheriya.I-white corundum micropowder(ingxenye eyinhloko α-Al₂O₃) "inamandla anzima" angu-9.0 esikalini sokuqina se-Mohs. Ingakwazi ukusika kahle ama-burrs ensimbi. Ngesikhathi esifanayo, izici zayo ezimhlophe ezimsulwa azingcolisi indawo yokusebenza. Ifaneleka ngokukhethekile ezintweni zokwelapha ezifana ne-titanium alloy nensimbi engagqwali.
Unjiniyela uLi ovela efekthri yemishini ethile e-Dongguan uthe ngokwethembeka: “Ngike ngazama ezinye izinsimbi ngaphambili, kodwa kungenzeka ukuthi insalela yempushana yensimbi ibuyiswe amakhasimende noma ukusebenza kahle kokupholisha bekuphansi kakhulu.I-corundum emhlophe ukusikeka ngokushesha nangokuhlanzekile, futhi izinga lesivuno likhuphuke ngokuqondile ngo-12% - izibhedlela ngeke zamukele izitho zokwenziwa ezihlangene ezinemihuzuko.” Okubaluleke nakakhulu, ukungabi namakhemikhali kwayo akusabeli neze ngemishini 7. Igwema ingozi yokungcoliswa kwamakhemikhali okwethulwa ngokupholisha, okubalulekile emikhiqizweni ehlangana ngqo nomzimba womuntu.
2. Ukukhathazeka ngokuphepha: olunye uhlangothi lwempushana emhlophe
Nakuba le powder emhlophe iletha izinzuzo zenqubo, iphinde ifihle amaphuzu engozi angenakunakwa.
Ukuhogela uthuli: inombolo yokuqala "umbulali ongabonakali"
Ama-Micropowder anosayizi wezinhlayiyana we-0.5-20 microns kulula kakhulu ukuntanta. Idatha evela esikhungweni sendawo sokuvimbela nokwelashwa komsebenzi ngo-2023 ibonise ukuthi izinga lokutholwa kwe-pneumoconiosis phakathi kwabasebenzi ababechayeke ekugxilweni okuphezulu kothuli lwe-corundum emhlophe isikhathi eside lafinyelela ku-5.3%. 2. “Nsuku zonke ngemva komsebenzi, kuba nongqimba lomlotha omhlophe kusifihla-buso, futhi isikhwehlela esikhwehleleyo siba nesihlabathi,” kusho umpholishi ongathandanga ukudalulwa igama. Okunzima kakhulu ukuthi isikhathi sokufukamela se-pneumoconiosis singathatha iminyaka eyishumi. Izimpawu zokuqala zithambile kodwa zingalimaza ngokungenakulungiseka izicubu zamaphaphu.
Isikhumba namehlo: izindleko zokuthintana ngqo
Izinhlayiya ze-micropowder zibukhali futhi zingabangela ukulunywa noma ngisho nokuklwebheka lapho zifika esikhumbeni; uma zingena emehlweni, zikwazi ukunwaya kalula i-cornea. 3. Umbiko wengozi ovela efekthri ye-OEM yemishini eyaziwa kakhulu ngo-2024 wabonisa ukuthi ngenxa yokuguga kwe-protection goggles seal, isisebenzi sathola uthuli emehlweni aso lapho sishintsha i-abrasive, okubangele imihuzuko ye-cornea kanye nokuvalwa kwamasonto amabili.
Isithunzi sezinsalela zamakhemikhali?
Nakuba i-corundum emhlophe ngokwayo izinzile kumakhemikhali, imikhiqizo esezingeni eliphansi ingase ibe namanani omkhondo ezinsimbi ezisindayo uma iqukethe i-sodium ephezulu (Na₂O>0.3%) noma ingafakwanga kahle. 56. I-ejensi yokuhlola yake yathola u-0.08% Fe₂O₃6 eqeqebeni le-corundum emhlophe ebhalwe “ibanga lezokwelapha” - lokhu ngokungangabazeki kuyingozi efihliwe yama-stents enhliziyo adinga ukuhambisana ngokuphelele kwezinto eziphilayo.
3. Ukulawula ubungozi: faka “impushana eyingozi” ekhejini
Njengoba ingenakushintshwa ngokuphelele, ukuvimbela nokulawula kwesayensi kuwukuphela kwendlela yokuphuma. Izinkampani ezihamba phambili embonini zihlole "izingidi zokuphepha" eziningi.
Ukulawula ubunjiniyela: Bulala uthuli emthonjeni
Ubuchwepheshe bokupholisha okumanzi buthola ukuthandwa ngokushesha - ukuxuba impushana encane nesisombululo esinamanzi kunamathisele wokugaya, inani lokukhishwa kothuli lehla ngaphezu kuka-90%6. Umqondisi weshabhu yefekthri ehlangene yokwenziwa kwezitho eShenzhen wenza izibalo: “Ngemva kokushintsha ekubeni umshini wokugaya omanzi, umjikelezo wokushintsha isihlungi somoya ohlanzekile wanwetshwa kusukela evikini eli-1 kuya ezinyangeni ezi-3. Kubonakala sengathi imishini ibiza kakhulu ngo-300 000, kodwa isinxephezelo esilondoloziwe sesifo somsebenzi kanye nokulahlekelwa kokumiswa kokukhiqiza kuzozikhokhela ngokwazo eminyakeni emibili.” Isistimu ye-exhaust yendawo ehlanganiswe netafula lokusebenzisa ingcindezi engalungile ingaphinde ibambe uthuli oluphumayo2.
Ukuvikelwa komuntu siqu: umugqa wokugcina wokuzivikela
Omaski othulini i-N95, izibuko zokuzivikela ezivalwe ngokugcwele, nama-jumpsuits alwa ne-anti-static kuyimpahla evamile yabasebenzi. Kodwa ubunzima bokusebenzisa kulele ekuthobeleni umthetho - izinga lokushisa lendawo yokusebenzela lidlula u-35℃ ehlobo, futhi izisebenzi zivame ukukhumula imaski ngasese. Ngenxa yalesi sizathu, ifekthri e-Suzhou yethule umshini wokuphefumula ohlakaniphile onefeni encane, ecabangela kokubili ukuvikela nokuphefumula, futhi izinga lokwephulwa kwemithetho lehle kakhulu.
Ukuthuthukiswa kwezinto ezibonakalayo: impushana encane ephephile iyazalwa
Isizukulwane esisha sezokwelapha eziphansi-sodiumi-white corundum(Na₂O<0.1%) inokungcola okuncane kanye nokusatshalaliswa kosayizi wezinhlayiyana okugxiliswe kakhulu ngokukhetha okujulile nokuhlukaniswa komoya. 56. Umqondisi wezobuchwepheshe wenkampani eqhumayo esiFundazweni sase-Henan ubonise isilingo sokuqhathanisa: 2.3μg/cm² wezinsalela ze-aluminium zitholwe endaweni yensimbi ngemva kokupholishwa ngempushana encane evamile, kuyilapho umkhiqizo we-sodium ephansi ubungu-0.7μg/cm² kuphela, ngaphansi kakhulu komkhawulo ojwayelekile we-ISO 10993.
Isikhundla sei-white corundum micro powderemkhakheni wokupholisha idivayisi yezokwelapha kuzohlala kunzima ukuzamazama esikhathini esifushane. Kodwa ukuphepha kwayo akukona okungokwemvelo, kodwa umncintiswano oqhubekayo phakathi kobuchwepheshe bezinto ezibonakalayo, ukulawulwa kobunjiniyela kanye nokuphathwa kwabantu. Uma kubanjwa uthuli lokugcina lwamahhala endaweni yokusebenzela, lapho indawo ebushelelezi yensimbi ngayinye yokuhlinza ingasaphazamisi impilo yabasebenzi - sibambe ukhiye “wokupholisha okuphephile”. Phela, ukuhlanzeka kokwelashwa kufanele kuqale kusukela enqubweni yokuqala yokuyikhiqiza.