Kuchengetedzwa kwewhite corundum powder mune zvekurapa mudziyo polishing
Famba mune chero mudziyo wekurapakukwenenzveramusangano uye iwe unogona kunzwa yakaderera hum yemuchina. Vashandi vakapfeka masutu anodzivirira guruva vari kushanda nesimba, vaine simba rekuvhiya, majoint prostheses, uye zviboorero zvemazino zvinopenya mumaoko avo - izvi zvinoponesa hupenyu hazvigone kunzvenga nzira yakakosha vasati vabva mufekitori: kukwenenzvera. Uye chena corundum poda ndiyo inonyanya kukosha "ruoko rwemashiripiti" mukuita uku. Zvisinei, mumakore achangopfuura, nekuratidzwa kwezviitiko zvakawanda zvepneumoconiosis yevashandi, iyo indasitiri yakatanga kuongorora zvakare kuchengetedzwa kwehupfu chena iyi.
1. Nei zvichidikanwa kupukuta michina yekurapa?
Kune "zvinouraya" zvigadzirwa senge mablades ekuvhiya uye maoropedic implants, kupera kwepamusoro haisi nyaya yekunaka, asi mutsara wehupenyu-nerufu. Iyo micron-sized burr inogona kukonzera kukuvara kwetishu kana kukura kwebhakitiriya.White corundum micropowder(chikamu chikuru α-Al₂O₃) ine "simba rakaoma" re9.0 pachiyero chekuoma kweMohs. Inogona kunyatsocheka simbi burrs. Panguva imwecheteyo, maitiro ayo machena akachena haasvibisi pamusoro pebasa rekushanda. Iyo inonyanya kukodzera kune zvigadzirwa zvekurapa zvakadai setitanium alloy uye simbi isina tsvina.
Engineer Li anobva kune imwe fekitari yemidziyo muDongguan akataura nokutendeseka kuti: “Ndakamboedza mamwe mabrasives, asi simbi yasara poda yakadzoserwa nevatengi kana kuti kukwenenzvera kwanga kwakaderera.White corundum kucheka nekukurumidza uye zvakachena, uye mwero wegoho wakawedzera zvakananga ne12% - zvipatara hazvigamuchire maprostheses akabatanidzwa ane zvikwambo. " Zvinotonyanya kukosha, makemikari ayo inertness haatombopindirana nemidziyo 7. Inodzivirira njodzi yekusvibiswa kwemakemikari inounzwa nekupenya, iyo yakakosha kune zvigadzirwa zvinosangana zvakananga nemuviri wemunhu.
2. Zvinetso zvekuchengetedza: rumwe rutivi rweupfu chena
Nepo iyi chena poda inounza mabhenefiti ekuita, inovanzawo mapoinzi enjodzi asingagoni kufuratirwa.
Dust inhalation: nhamba yekutanga "muurayi asingaoneki"
Micropowder ine particle size ye 0.5-20 microns zviri nyore kukuyangarara. Dhata kubva kune imwe nzvimbo yekudzivirira yekudzivirira uye yekurapa institute muna 2023 yakaratidza kuti chiyero chekuonekwa kwepneumoconiosis pakati pevashandi vakaratidzirwa kune yakanyanya kuwanda kwewhite corundum guruva kwenguva yakareba yakasvika 5.3%. 2. “Zuva riri rose rabva kubasa, pane nhurikidzwa yedota jena mumasiki, uye sputum yakakosorwa inenge ine jecha,” akadaro mumwe muporishi asina kuda kudurwa nezita. Chinonyanya kuoma ndechekuti incubation nguva yepneumoconiosis inogona kureba semakore gumi. Zviratidzo zvekutanga zvakapfava asi zvinogona kukuvadza zvisingachinjiki matishu emapapu.
Ganda nemaziso: mari yekubata zvakananga
Iyo micropowder particles inopinza uye inogona kukonzera kukwenya kana kukwenya kana yasvika paganda; kana vangopinda mumaziso, vanogona kukwenya nyore cornea. 3. Mushumo wetsaona kubva kune inonyatsozivikanwa midziyo yeOEM factory muna 2024 yakaratidza kuti nekuda kwekuchembera kwechisimbiso chekudzivirira goggles, mushandi akawana guruva mumaziso ake paanoshandura abrasive, zvichiita kuti corneal abrasions uye kuvhara kwemavhiki maviri.
Mumvuri wemakemikari akasara?
Kunyange zvazvo white corundum pachayo yakagadzikana mumakemikari, zvigadzirwa zvepasi-pasi zvinogona kunge zviine uwandu hwesimbi inorema kana iine yakakwira sodium (Na₂O> 0.3%) kana isina kunyatsobikwa. 56. Sangano rekuongorora rakamboona 0.08% Fe₂O₃6 muboka rewhite corundum rakanyorwa kuti "giredhi rekurapa" - iyi pasina mubvunzo injodzi yakavanzika yemoyo stents inoda zvachose biocompatibility.
3. Kudzora njodzi: isa "poda ine ngozi" mucheji
Sezvo isingagoni kutsiviwa zvachose, kudzivirira nekudzora kwesayenzi ndiyo nzira bedzi yokubuda nayo. Makambani anotungamira muindasitiri akaongorora akawanda "makiyi ekuchengetedza".
Kudzora kweinjiniya: Uraya huruva panzvimbo
Wet polishing tekinoroji iri kukurumidza kufarirwa - kusanganisa micro poda ine aqueous solution mukukuya paste, huwandu hwehupfu hunodonha nekupfuura 90% 6. Mutungamiriri weshopu yefekitari yakabatanidzwa yokupinza nhengo dzokubereka nadzo muShenzhen akaita masvomhu: “Pashure pokunge zvachinja kuva kugaya nyoro, kutenderera kwesefa yefevha yemhepo yakachena yakawedzerwa kubva pavhiki imwe kusvika kumwedzi 3. Zvinoita sokuti midziyo yacho inodhura 300 000, asi muripo wakachengetwa wehosha yebasa uye kurasikirwa nokumiswa kwekugadzirwa kuchazvibhadhara mumakore maviri.” Iyo yemuno exhaust system yakasanganiswa neiyo yakaipa yekumanikidza inoshanda tafura inogona kuenderera mberi kubvuta guruva rinopukunyuka.
Kudzivirirwa pachako: mutsara wekupedzisira wekudzivirira
N95 guruva masks, akavharirwa zvizere magirazi ekudzivirira, uye anti-static jumpsuits ndiyo yakajairwa midziyo yevashandi. Asi kuomerwa mukuita kuri mukuteerera - tembiricha yemusangano inodarika 35 ℃ muzhizha, uye vashandi vanowanzobvisa masiki pachivande. Nechikonzero ichi, fekitori muSuzhou yakaunza yakangwara yekufemerera ine micro fan, iyo inofunga nezvese kudzivirira uye kufema, uye mwero wekutyora wadzikira zvakanyanya.
Kukwidziridzwa kwezvinhu: yakachengeteka micro poda inozvarwa
Chizvarwa chitsva chepasi-sodium yekurapawhite corundum(Na₂O<0.1%) ine tsvina shoma uye yakawanda yakanyungudutswa saizi yekugovera kuburikidza nekudzika kwakadzika uye kuyerera kwemhepo. 56. Mutungamiriri wekambani yekambani yeabrasive muRuwa rweHenan akaratidza kuedza kwekuenzanisa: 2.3μg / cm² yealuminium yakasara yakaonekwa pamusoro pechiridzwa mushure mekupenya nehupfu hwechinyakare, nepo chigadzirwa chepasi-sodium chaingova 0.7μg/cm², kure kure nechiyero che ISO 10993.
Nzvimbo yewhite corundum micro powdermumunda wezvokurapa mudziyo polishing icharamba yakaoma kuzunungusa munguva pfupi. Asi kuchengetedzeka kwayo hakusi kwekuzvarwa, asi makwikwi anoenderera pakati pehunyanzvi hwezvinhu, kutonga kweinjiniya uye kutonga kwevanhu. Kana guruva rekupedzisira remahara muwekishopu rabatwa, kana nzvimbo yakatsetseka yemudziyo wega wega wekuvhiya pasisina kukanganisa hutano hwevashandi - isu tinonyatso kubata kiyi ye "kunatswa kwakachengeteka". Mushure mezvose, kuchena kwehutano hwekurapa kunofanira kutanga kubva pakutanga kwekugadzira iyo.