Chitetezo cha ufa woyera wa corundum mu kupukuta zipangizo zachipatala
Lowani mu chipangizo chilichonse chachipatalakupukutaMu workshop ndipo mutha kumva phokoso lotsika la makinawo. Ogwira ntchito ovala zovala zosapsa fumbi akugwira ntchito molimbika, ndi zida zogwirira ntchito za opaleshoni, zolumikizira ziwalo, ndi zobowolera mano zikuwala mozizira m'manja mwawo - zida zopulumutsa moyozi sizingapewe njira yofunika kwambiri asanachoke ku fakitale: kupukuta. Ndipo ufa woyera wa corundum ndi "dzanja lamatsenga" lofunika kwambiri panjirayi. Komabe, m'zaka zaposachedwa, chifukwa cha milandu ingapo ya pneumoconiosis ya ogwira ntchito, makampaniwa ayamba kuyang'ananso chitetezo cha ufa woyera uwu.
1. N’chifukwa chiyani kupukuta zipangizo zachipatala n’kofunika?
Pa zinthu "zakupha" monga mabala a opaleshoni ndi zoyikamo mafupa, kukongola kwa pamwamba si vuto la kukongola, koma mzere wa moyo ndi imfa. Chiphuphu chachikulu cha micron chingayambitse kuwonongeka kwa minofu kapena kukula kwa mabakiteriya.Ufa wa corundum woyera(chigawo chachikulu cha α-Al₂O₃) chili ndi "mphamvu yolimba" ya 9.0 pa sikelo ya kuuma kwa Mohs. Chimatha kudula bwino ma burrs achitsulo. Nthawi yomweyo, mawonekedwe ake oyera saipitsa pamwamba pa chogwirira ntchito. Ndi choyenera makamaka pazinthu zachipatala monga titaniyamu alloy ndi chitsulo chosapanga dzimbiri.
Mainjiniya Li wochokera ku fakitale ina ya zida ku Dongguan anati moona mtima: “Ndayesapo kale zinthu zina zotsukira, koma mwina ufa wotsala wachitsulo unabwezedwa ndi makasitomala kapena kupukuta kunali kochepa kwambiri.White corundum Imadula mwachangu komanso moyera, ndipo kuchuluka kwa zokolola kwakwera mwachindunji ndi 12% - zipatala sizivomereza ma prostheses olumikizana okhala ndi mikwingwirima.” Chofunika kwambiri, kusakhala ndi mankhwala ake sikungagwirizane ndi zida. 7. Imapewa chiopsezo cha kuipitsidwa ndi mankhwala omwe amayambitsidwa ndi kupukuta, komwe ndikofunikira kwambiri pazinthu zomwe zimakhudzana mwachindunji ndi thupi la munthu.
2. Zokhudza chitetezo: mbali inayo ya ufa woyera
Ngakhale kuti ufa woyera uwu umabweretsa ubwino wa njira yopangira zinthu, umabisanso zoopsa zomwe sizinganyalanyazidwe.
Kupuma fumbi: "wakupha wosaoneka" wodziwika kwambiri
Ufa wa microfure wokhala ndi tinthu tating'onoting'ono ta 0.5-20 microns ndi wosavuta kuyandama. Deta yochokera ku bungwe lothandizira kupewa ndi kuchiza matenda kuntchito mu 2023 inasonyeza kuti kuchuluka kwa matenda a pneumoconiosis pakati pa ogwira ntchito omwe adakumana ndi fumbi loyera la corundum kwa nthawi yayitali kunafika pa 5.3%. 2. "Tsiku lililonse pambuyo pa ntchito, pamakhala phulusa loyera mu chigoba, ndipo makoswe omwe amakokedwa amakhala ndi mawonekedwe amchenga," anatero wopukuta yemwe sanafune kutchulidwa dzina. Chovuta kwambiri ndichakuti nthawi yoberekera ya pneumoconiosis imatha kukhala zaka khumi. Zizindikiro zoyambirira ndi zochepa koma zimatha kuwononga minofu ya m'mapapo mosalekeza.
Khungu ndi maso: mtengo wokhudzana mwachindunji
Tinthu tating'onoting'ono ta ufa wa micropowder ndi tothwa kwambiri ndipo tingayambitse kuyabwa kapena kukanda tikafika pakhungu; tikangolowa m'maso, timatha kukanda mosavuta cornea. 3. Lipoti la ngozi lochokera ku fakitale yodziwika bwino ya OEM mu 2024 linasonyeza kuti chifukwa cha kukalamba kwa chisindikizo cha magalasi oteteza, wantchito wina analowa m'maso mwake fumbi akasintha chotsukira, zomwe zinachititsa kuti cornea ipse komanso kuti isatseke kwa milungu iwiri.
Mthunzi wa zotsalira za mankhwala?
Ngakhale kuti corundum yoyera yokha ndi yokhazikika pa mankhwala, zinthu zotsika mtengo zimatha kukhala ndi zitsulo zolemera ngati zili ndi sodium wambiri (Na₂O>0.3%) kapena sizinaikidwe bwino. 56. Bungwe loyesa linapezapo 0.08% Fe₂O₃6 mu gulu la corundum yoyera yolembedwa kuti "kalasi yachipatala" - mosakayikira izi ndi zoopsa zobisika za stents zamtima zomwe zimafuna kuyanjana kwathunthu.
3. Kuwongolera zoopsa: ikani "ufa woopsa" mu khola
Popeza sizingasinthidwe kwathunthu, kupewa ndi kuwongolera sayansi ndiyo njira yokhayo yothetsera vutoli. Makampani otsogola mumakampaniwa afufuza "maloko achitetezo" angapo.
Kuwongolera kwaukadaulo: Kupha fumbi komwe kumachokera
Ukadaulo wopopera pogwiritsa ntchito madzi ukutchuka kwambiri - kusakaniza ufa waung'ono ndi madzi mu phala lopera, kuchuluka kwa fumbi lotulutsa kumatsika ndi zoposa 90%. Woyang'anira malo opangira zinthu zoberekera ku Shenzhen adachita masamuwo: "Pambuyo posintha kukhala wopera pogwiritsa ntchito madzi, nthawi yosinthira fyuluta ya fan ya mpweya watsopano inakulitsidwa kuchoka pa sabata imodzi mpaka miyezi itatu. Zikuwoneka kuti zidazo ndi zokwera mtengo ndi 300,000, koma ndalama zolipirira matenda a kuntchito komanso kutayika kwa kuyimitsidwa kwa kupanga zidzadzilipira zokha m'zaka ziwiri." Dongosolo lotulutsa utsi la m'deralo pamodzi ndi tebulo logwiritsira ntchito mphamvu yoipa lingathe kuletsa fumbi lotuluka2.
Chitetezo chaumwini: mzere womaliza wa chitetezo
Zophimba fumbi za N95, magalasi oteteza otsekedwa bwino, ndi ma jumpsuit oletsa kusinthasintha ndi zida zodziwika bwino kwa ogwira ntchito. Koma vuto lalikulu pakukhazikitsa ndi kutsatira malamulo - kutentha kwa malo ogwirira ntchito kumapitirira 35℃ nthawi yachilimwe, ndipo ogwira ntchito nthawi zambiri amavula zophimba zawo mobisa. Pachifukwa ichi, fakitale ku Suzhou idapereka chopumira chanzeru chokhala ndi fan yaying'ono, yomwe imaganizira chitetezo komanso kupumira bwino, ndipo kuchuluka kwa kuphwanya malamulo kwatsika kwambiri.
Kusintha kwa zinthu: ufa wotetezeka kwambiri wa micro wabadwa
Mbadwo watsopano wa mankhwala ochepetsa sodiumcorundum yoyera(Na₂O<0.1%) ili ndi zonyansa zochepa komanso kugawa tinthu tating'onoting'ono kwambiri kudzera mu pickling yozama komanso kugawa mpweya. 56. Mtsogoleri waukadaulo wa kampani yokanda ku Henan Province wawonetsa kuyesa koyerekeza: 2.3μg/cm² ya zotsalira za aluminiyamu zidapezeka pamwamba pa chipangizocho atapukuta ndi ufa wachikhalidwe, pomwe chinthu chotsika cha sodium chinali 0.7μg/cm² yokha, chotsika kwambiri kuposa malire a ISO 10993.
Udindo waufa woyera wa corundum microPankhani yokonza zipangizo zachipatala, kupukuta zipangizo kudzavuta kugwedezeka pakapita nthawi yochepa. Koma chitetezo chake sichili chachibadwa, koma mpikisano wopitilira pakati pa ukadaulo wa zinthu, kuwongolera uinjiniya ndi kasamalidwe ka anthu. Pamene fumbi lomaliza lopanda kanthu mu workshop litagwidwa, pamene pamwamba posalala pa chipangizo chilichonse chopangira opaleshoni sikulinso ndi vuto pa thanzi la ogwira ntchito - tili ndi chinsinsi cha "kupukuta kotetezeka". Kupatula apo, kuyera kwa chithandizo chamankhwala kuyenera kuyambira pa njira yoyamba yopangira.