Kuchengetedzwa kweupfu hwecorundum chena mukupukuta zvishandiso zvekurapa
Pinda chero mudziyo wekurapakupukutamuworkshop uye unogona kunzwa ruzha rwakaderera rwemuchina. Vashandi vakapfeka masutu asingapindi guruva vari kushanda nesimba, vaine ma forceps ekuvhiya, majoini eprostheses, uye ma drills emazino achipenya zvinotonhora mumaoko avo - zvishandiso izvi zvinoponesa hupenyu hazvigone kudzivirira maitiro makuru vasati vabuda mufekitori: kupukuta. Uye upfu hwe corundum chena ndihwo "ruoko rwemashiripiti" runokosha mukuita uku. Zvisinei, mumakore achangopfuura, nekuratidzwa kwezviitiko zvakawanda zve pneumoconiosis yevashandi, indasitiri yakatanga kuongorora patsva kuchengetedzeka kweupfu uhwu huchena.
1. Sei zvichikosha kupolisha michina yekurapa?
Pazvinhu "zvinouraya" zvakaita semabraids ekuvhiya uye orthopedic implants, kupenya kweganda hakusi dambudziko rekunaka, asi mutsetse wehupenyu nerufu. Chigadziko cheganda chine saizi ye micron chinogona kukonzera kukuvara kwenyama kana kukura kwebhakitiriya.Hupfu hwe corundum chena(chikamu chikuru che α-Al₂O₃) ine "simba rakaoma" re9.0 pachiyero cheMohs chekuomarara. Inogona kucheka maburrs esimbi zvinobudirira. Panguva imwe chete, hunhu hwayo huchena hahusvibisi pamusoro pechinhu chebasa. Yakanyanya kukodzera zvinhu zvekurapa zvakaita se titanium alloy nesimbi isina ngura.
Injiniya Li weimwe fekitori yemidziyo muDongguan akataura chokwadi achiti: “Ndakamboedza mamwe mabrasives kare, asi upfu hwesimbi hwakasara hwakadzoserwa nevatengi kana kuti kushanda kwekupukuta kwaive kwakaderera.Corundum chena Inocheka nekukurumidza uye zvakachena, uye mwero wegoho wakawedzera zvakananga ne12% - zvipatara hazvigamuchire majoini ekugadzira nhengo dzenhengo dzine mavanga.” Chinonyanya kukosha ndechekuti, kusashanda kwayo kwemakemikari hakusangani nemidziyo. 7. Inodzivisa njodzi yekusvibiswa nemakemikari kunounzwa nekukwesha, izvo zvakakosha kune zvigadzirwa zvinosangana zvakananga nemuviri wemunhu.
2. Zvinonetsa nezvekuchengetedza: rimwe divi reupfu chena
Kunyange zvazvo upfu uhwu huchena huchiunza zvakanakira maitiro, hunovanzawo njodzi dzisingafaniri kufuratirwa.
Kufema guruva: "muurayi asingaonekwe" mukuru pane vese
Upfu hudiki hune saizi ye 0.5-20 microns huri nyore kuhuyangarara. Data kubva kusangano rekudzivirira nekurapa remunharaunda muna 2023 rakaratidza kuti huwandu hwe pneumoconiosis hunoonekwa pakati pevashandi vakasangana nehuwandu hwakawanda hweguruva jena re corundum kwenguva yakareba hwakasvika 5.3%. 2. "Zuva rega rega mushure mebasa, pane dota jena mumasiki, uye sputum inokosorwa ine jecha," akadaro mumwe mupolishi asina kuda kutaurwa zita rake. Chinonyanya kuoma ndechekuti nguva yekukura kwe pneumoconiosis inogona kusvika makore gumi. Zviratidzo zvekutanga zvishoma asi zvinogona kukuvadza tishu dzemapapu zvisingagadzirisiki.
Ganda nemaziso: mutengo wekubata zvakananga
Zvidimbu zve micropowder zvakapinza uye zvinogona kukonzera kuvaviwa kana kutokwenya kana zvasvika paganda; kana zvangopinda mumaziso, zvinogona kukwenya cornea zviri nyore. 3. Mushumo wetsaona wakabva kufekitori inozivikanwa yeOEM yemidziyo muna 2024 wakaratidza kuti nekuda kwekukwegura kwechisimbiso chekudzivirira magogorosi, mushandi akaisa guruva mumaziso ake paakachinja chisimbiso, zvichikonzera kukwenya cornea uye kudzima kwemavhiki maviri.
Mumvuri wezvisaririra zvemakemikari?
Kunyangwe corundum chena pachayo isingakanganise makemikari, zvigadzirwa zvemhando yepamusoro zvinogona kunge zvine huwandu hushoma hwesimbi dzinorema kana dziine sodium yakawanda (Na₂O>0.3%) kana kuti dzisina kubikwa zvakanaka. 56. Imwe kambani yekuongorora yakamboona 0.08% Fe₂O₃6 muchikamu che corundum chena chakanyorwa kuti "giredhi rekurapa" - iyi hapana mubvunzo kuti injodzi yakavanda kune stents dzemwoyo dzinoda kubatana kwakakwana.
3. Kudzora njodzi: isa "hupfu hune njodzi" mukeji
Sezvo zvisingagone kutsiviwa zvachose, kudzivirira nekudzora kwesainzi ndiyo nzira chete yekubuda nayo. Makambani anotungamira muindasitiri iyi akaongorora "makiyi ekuchengetedza" akawanda.
Kudzora mainjiniya: Kuuraya guruva panobva
Tekinoroji yekupukuta yakanyorova iri kukurumidza kufarirwa - kusanganisa upfu hudiki nemhinduro yemvura mukuyiwa, huwandu hweguruva hunodzikira neanopfuura 90%6. Mutungamiriri weworkshop yefekitori yekubatanidza nhengo dzemuviri muShenzhen akaita masvomhu: "Mushure mekuchinja kuita kukuyiwa kwakanyorova, kudzoserwa kwefirita yemhepo itsva kwakawedzerwa kubva pavhiki imwe kusvika kumwedzi mitatu. Zvinoita sekunge michina yacho inodhura ne300,000, asi muripo wezvirwere zvebasa wakachengetwa uye kurasikirwa kwekugadzirwa kwemidziyo kuchazvibhadhara mumakore maviri." Sisitimu yekubuda kwemhepo yemuno pamwe chete netafura yekushanda ine simba rinogona kudzivirira guruva rinobuda2.
Kudzivirirwa kwemunhu: mutsetse wekupedzisira wekudzivirira
Mamasiki eguruva eN95, magirazi ekudzivirira akavharwa zvizere, uye majumpsuits anodzivirira static zvishandiso zvevashandi. Asi dambudziko rekushandisa riri mukutevedzera mitemo - tembiricha yemuworkshop inodarika 35℃ muzhizha, uye vashandi vanowanzobvisa mamasiki avo pachivande. Nekuda kweizvi, fekitori muSuzhou yakaunza muchina wekufema wakangwara une micro fan, iyo inofunga nezvekudzivirira uye kufema, uye mwero wekutyorwa kwemutemo wakadzikira zvakanyanya.
Kuvandudzwa kwezvinhu: hupfu hudiki hwakachengeteka hunozvarwa
Chizvarwa chitsva chemishonga ine sodium shomacorundum chena(Na₂O<0.1%) ine tsvina shoma uye ine saizi yakawanda yezvikamu zvakasanganiswa kuburikidza nekukanda zvakadzika uye kupatsanurwa kwemhepo. 56. Mutungamiriri wehunyanzvi wekambani inokwesha muHenan Province akaratidza kuyedza kwekuenzanisa: 2.3μg/cm² yearuminiyamu yakawanikwa pamusoro pechishandiso mushure mekukwesha neupfu hwechinyakare, nepo chigadzirwa chine sodium shoma chaive 0.7μg/cm² chete, pasi pemuganho weISO 10993.
Nzvimbo yeupfu hudiki hwe corundum chenaMubasa rekupukuta michina yekurapa zvicharamba zvakaoma kuzununguswa munguva pfupi. Asi kuchengetedzeka kwayo hakusi kwekuzvarwa nako, asi kukwikwidzana kuripo pakati petekinoroji yezvinhu, kutonga kweinjiniya uye manejimendi yevanhu. Kana guruva rekupedzisira rakasununguka muworkshop rabatwa, kana pamusoro pechinhu chimwe nechimwe chekuvhiya pachave pasina kukanganisa hutano hwevashandi - isu tine kiyi ye "kupukuta kwakachengeteka". Pamusoro pezvose, kuchena kwekurapwa kunofanira kutanga kubva pakutanga kwekugadzira.