Chitetezo cha white corundum powder mu kupukuta zipangizo zachipatala
Yendani mu chipangizo chilichonse chamankhwalakupukutamsonkhano ndipo mutha kumva kung'ung'udza kwa makina. Ogwira ntchito ovala masuti oteteza fumbi akugwira ntchito molimbika, ndi mphamvu zopangira opaleshoni, ma prostheses ophatikizana, ndi kubowola mano kumayaka mozizira m'manja mwawo - zida zopulumutsa moyozi sizingapewe njira yayikulu musanachoke kufakitale: kupukuta. Ndipo ufa woyera wa corundum ndiye "dzanja lamatsenga" lofunika kwambiri pakuchita izi. Komabe, m'zaka zaposachedwapa, ndi kuwonekera kwa milandu ingapo ya pneumoconiosis ya ogwira ntchito, makampani ayamba kuwunikanso chitetezo cha ufa woyera uwu.
1. Chifukwa chiyani kuli kofunikira kupukuta zida zamankhwala?
Pazinthu "zakupha" monga zopangira opaleshoni ndi zoikamo za mafupa, kutsirizitsa pamwamba si nkhani yokongola, koma mzere wa moyo ndi imfa. Burr ya micron ingayambitse kuwonongeka kwa minofu kapena kukula kwa bakiteriya.White corundum micropowder(gawo lalikulu α-Al₂O₃) ili ndi "mphamvu yolimba" ya 9.0 pamlingo wa Mohs hardness. Iwo akhoza efficiently kudula zitsulo burrs. Nthawi yomweyo, mawonekedwe ake oyera oyera samaipitsa pamwamba pa workpiece. Ndizoyenera makamaka pazinthu zamankhwala monga titaniyamu alloy ndi chitsulo chosapanga dzimbiri.
Engineer Li wa ku fakitale ina ya zipangizo ku Dongguan ananena moona mtima kuti: “Ndinayesapo ma abrasives ena m’mbuyomo, koma mwina chitsulo chotsalira cha ufa chinabwezedwa ndi makasitomala kapena mphamvu yopukutira inali yochepa kwambiri.White corundum amadula mwachangu komanso mwaukhondo, ndipo zokolola zakwera mwachindunji ndi 12% - zipatala sizingavomereze ma prostheses olumikizana ndi zokala. " Chofunika kwambiri, kukhalapo kwake kwa mankhwala sikumafanana ndi zipangizo 7. Zimapewa kuopsa kwa kuipitsidwa kwa mankhwala komwe kumayambitsidwa ndi kupukuta, komwe kuli kofunikira kwa mankhwala omwe amalumikizana mwachindunji ndi thupi la munthu.
2. Zokhudza chitetezo: mbali ina ya ufa woyera
Ngakhale ufa woyera uwu umabweretsa ubwino wa ndondomeko, umabisanso mfundo zoopsa zomwe sizinganyalanyazidwe.
Kupuma fumbi: nambala wani "wakupha wosawoneka"
Ma Micropowder okhala ndi tinthu ting'onoting'ono ta 0.5-20 microns ndi osavuta kuyandama. Deta yochokera ku bungwe loteteza ndi kuchiza ntchito ku 2023 idawonetsa kuti kuchuluka kwa pneumoconiosis pakati pa ogwira ntchito omwe adakumana ndi fumbi loyera la corundum kwa nthawi yayitali adafika 5.3%. 2. “Tsiku lililonse ndikaweruka kuntchito, pamakhala phulusa loyera m’chigobacho, ndipo makokowo akakhosomola amakhala ngati mchenga,” anatero munthu wopukuta zitsulo yemwe sanafune kutchula dzina lake. Chomwe chimakhala chovuta kwambiri ndi chakuti nthawi ya makulitsidwe a pneumoconiosis imatha kukhala zaka khumi. Zizindikiro zoyamba ndizochepa koma zimatha kuwononga minofu ya m'mapapo mosasinthika.
Khungu ndi maso: mtengo wolumikizana mwachindunji
Tinthu tating'onoting'ono tating'onoting'ono tating'onoting'ono tating'onoting'ono tating'onoting'ono tating'onoting'ono tomwe timayambitsa kuyabwa kapena zokanda pakhungu; akalowa m'maso, amatha kukanda cornea mosavuta. 3. Lipoti la ngozi lochokera ku fakitale yodziwika bwino ya zida za OEM mu 2024 inasonyeza kuti chifukwa cha kukalamba kwa chisindikizo cha magalasi otetezera, wogwira ntchito adalowa fumbi m'maso mwake pamene akusintha abrasive, zomwe zinachititsa kuti cornea abrasions ndi kutsekedwa kwa milungu iwiri.
Mthunzi wa zotsalira za mankhwala?
Ngakhale white corundum palokha imakhala yokhazikika pamakina, zinthu zotsika zimatha kukhala ndi zitsulo zolemera kwambiri ngati zili ndi sodium yambiri (Na₂O> 0.3%) kapena zosafufuzidwa bwino. 56. Bungwe loyesera kamodzi linazindikira 0.08% Fe₂O₃6 mu gulu la white corundum lotchedwa "medical grade" - izi mosakayikira ndi ngozi yobisika ya stents ya mtima yomwe imafuna biocompatibility mtheradi.
3. Kuwongolera zoopsa: ikani "ufa woopsa" mu khola
Popeza sichingasinthidwe kotheratu, kupewa ndi kuwongolera kwasayansi ndiyo njira yokha yotulukira. Makampani otsogola m'makampani afufuza "maloko achitetezo" angapo.
Kuwongolera uinjiniya: Ipha fumbi pagwero
Ukadaulo wopukutira wonyowa ukuchulukirachulukira - kusakaniza ufa wawung'ono ndi njira yamadzimadzi kukhala phala lopera, kuchuluka kwa fumbi kumatsika kuposa 90% 6. Woyang’anira malo ochitirako msonkhano wa fakitale yophatikizira zopangapanga ku Shenzhen anachita masamu: “Pambuyo posintha kukhala mphero yonyowa, kusintha kwa fyuluta ya mpweya watsopano kunatalikitsidwa kuchoka pa mlungu umodzi kufika pa miyezi 3. Zikuoneka kuti zipangizozo n’zokwera mtengo kwambiri 300,000, koma chipukuta misozi chopulumutsidwa cha matenda a ntchito ndi kutayika kwa kuyimitsidwa kwa ntchito kudzadzilipirira okha m’zaka ziŵiri.” Dongosolo la utsi wapanyumba limodzi ndi tebulo loyipa logwiritsa ntchito molakwika limatha kusokoneza fumbi lothawa2.
Chitetezo chaumwini: mzere womaliza wachitetezo
Masks afumbi a N95, magalasi otchinga otchingidwa kwathunthu, ndi ma jumpsuits odana ndi static ndi zida zokhazikika kwa ogwira ntchito. Koma vuto lokhazikitsa limakhala pakutsata - kutentha kwa msonkhano kumapitilira 35 ℃ m'chilimwe, ndipo antchito nthawi zambiri amavula masks awo mobisa. Pachifukwa ichi, fakitale ku Suzhou inayambitsa mpweya wopumira wanzeru wokhala ndi fani yaying'ono, yomwe imaganizira zachitetezo komanso kupuma, ndipo kuchuluka kwa kuphwanya kwatsika kwambiri.
Kusintha kwazinthu: ufa wotetezedwa wa micro ufa umabadwa
Mbadwo watsopano wa otsika sodium mankhwalawhite corundum(Na₂O<0.1%) ili ndi zonyansa zocheperako komanso kugawa kwa tinthu tating'ono kwambiri kudzera mu pickling yakuya ndi gulu la mpweya. 56. Woyang'anira zaukadaulo wa kampani ya abrasive m'chigawo cha Henan adawonetsa kuyesa kofananira: 2.3μg/cm² za zotsalira za aluminiyamu zidadziwika pamtunda wa chida pambuyo popukutidwa ndi ufa wapakatikati, pomwe mankhwala otsika a sodium anali 0.7μg/cm² okha, pansi pa muyezo wa ISO 10993.
Udindo wawhite corundum micro powderm'munda wa mankhwala chipangizo kupukuta adzakhala zovuta kugwedeza mu nthawi yochepa. Koma chitetezo chake sichachibadwa, koma mpikisano wopitilira pakati pa ukadaulo wazinthu, kuwongolera uinjiniya ndi kasamalidwe ka anthu. Pamene fumbi laulere lomaliza pamsonkhanowu ligwidwa, pamene malo osalala a chida chilichonse cha opaleshoni sichikhalanso ndi thanzi la ogwira ntchito - timakhala ndi chinsinsi cha "kupukuta bwino". Kupatula apo, chiyero cha chithandizo chamankhwala chiyenera kuyambira pakupanga koyamba.