Upfu hweGreen silicon carbide: chombo chakavanzika chekuvandudza kushanda zvakanaka kwekupukuta
Nenguva dza2:00 mangwanani, Lao Zhou wepanharembozha yekumashure akakanda chifukidziro chegirazi chakanga chabva pamutsetse wekugadzira patafura yekuongorora, uye ruzha rwacho rwaive rwakasimba sekunge pari kupfura mafirecracker. "Tarirai! Iboka regumi! Peel yeorenji uye mhute. Vaongorori veApple vachasvika mangwana. Chinhu ichi chingaunzwa here?!" Ropa mumaziso ake rakanga rakatsvuka kupfuura rambi rechiratidzo pamuchina. Li, uyo akanga akanyarara mukona, akasundidzira zvishoma nezvishoma bhaketi reupfu hwakasvibira, "Edza uyu 'mupengo wegirini', ndiye anonyanya kufadza kukuya mapfupa akaoma." Mazuva matatu gare gare, boka rekutanga rezvigadzirwa zvakakodzera rakatakurwa nendege husiku hwese. Lao Zhou akarova bhaketi reupfu hwegirinindokunyemwerera achiti: “Mukomana mudiki uyu ane hasha anogona kuponesa hupenyu!” Muhondo yekukwesha, inova nhangemutange nekufamba kwenguva,upfu hwegirini hwesilicon carbide (SiC)mushonga une simba uye unoshanda zvakanaka unorapa marudzi ese e "kusagona kukuya" uye "kusagona kukwesha".
Upfu hwegirini hwesilicon carbide, hunozivikanwa se "kabhoni yegirini” kana kuti “GC"munyika." Harisi jechawo zvaro, asi munhu akaomarara "akacheneswa" muchoto chemagetsi chearc chine kupisa kunopfuura madhigirii 2000 nezvinhu zvakaita sejecha re quartz ne petroleum coke. Rine muviri wakanaka: Kuomarara kweMohs kwakakwira kusvika pa9.2-9.3. Rakaoma zvishoma kupfuura "corundum chena "muzukuru" uye yechipiri mushure medhaimani. Chinoshamisa zvikuru "nguo dzayo dzegirini" - makristaro esilicon carbide akachena kwazvo, ane mipendero yakapinza nemakona, uye hasha dzinokurumidza uye dzinotyisa. Kana corundum chena iri "nyanzvi yekukwenya" yakadzikama, sakakabhidhi yegirini yesilicon"Kaputeni wekuputsa" akabata nyere diki, nyanzvi yekuruma mapfupa akaoma, uye kushanda kwayo kunoshamisa.
Kukosha kwayo kuri mumweya wekuti "kukurumidza, kwakarurama, uye kusina tsitsi":
1. Kuruma "mapfupa akaoma": kunyanya kushandisa marudzi ese ekusateerera
Girazi refoni (Corning Gorilla), girazi rewachi resafire, wafer yesilicon imwe chete, ceramic substrate… Aya “mapurojekiti echiso” eindasitiri yemazuva ano akaoma uye anopfava kupfuura mamwe. Mabrasives akajairwa haazoshande kana kupwanya mipendero kana simba rakawanda rikashandiswa. Mipendero yakapinza yeupfu hwesilicon carbide yegirini (senge ma micro chisel asingaverengeki padanho re microscopic), pamwe nekuoma kwayo kwakanyanya, zvinoita kuti "icheke" pamusoro pezvinhu zvakaoma uye zvinopfava zvine simba uye zvakatsiga. Inogona kukurumidza kukwesha zvinhu, pane "kuzvirima" semamwe mabrasives kuti ikuvadze zvakanyanya. Kukwesha chifukidziro chefoni? Inogona kukurumidza kupwanya "makomo" ari pamusoro pegirazi pasina kubatanidza "mipata" iri pedyo nayo, kuwedzera kushanda kwayo kaviri zvakananga, uye kuumbwa kweganda reorenji? Kwete!
2. Kucheka "banga rinokurumidza": nguva ibasa
Pamutsetse wekugadzira weTFT-LCD liquid crystal panel, sekondi yega yega yekukuya nekupukuta girazi guru ine chekuita nekugona kugadzira. "Kumhanya" kweupfu hwe silicon carbide yegirini kwakanyorwa mumajini ayo. Zvidimbu zvayo hazvisi chete zvakaoma uye zvakapinza, asiwo zvinoshamisa kuti zvinozvirodza - zvidimbu zvisina kusimba zvinozvipwanya kana zvamanikidzwa, zvichiburitsa mipendero mitsva yakapinza kuti irambe ichirwa! Kusiyana nemamwe ma abrasives akapfava, anova "akapfava" paanenge achikuya, uye kushanda kwawo kunodzikira. Kugona uku "kuzvivandudza" kunoita kuti ive sehove iri mumvura mumatanho ekupukuta akaomarara uye epakati, uye mwero wayo wekubvisa zvinhu panguva imwe neimwe (MRR) uri pamberi pevakwikwidzi vayo. Mushure mekunge fekitori ye photovoltaic silicon wafer yachinja kuita slurry ye green silicon carbide ine saizi chaiyo yezvikamu, kushanda kwekubvisa silicon wafer edge kwakawedzera ne35%, uye kugona kwekugadzira kwezuva nezuva kwemutsetse mumwe chete kwakadzvanywa nemazana ezvidimbu - munguva yekumhanyisa, iyi imari chaiyo!
3. "Zvakanaka" mumatambudziko: kuenzana kwakanaka pakati pekushanda zvakanaka uye kunyatsorongeka
Usafunge kuti “varume vanopenga vegirinhi"Inogona kungoshanda zvisina hanya. Mukupukuta mahwindo esapphire nemazvo, kusarudza saizi chaiyo yezvidimbu (senge W7, W5 kana kutowedzera kunaka mushure mekuyera zvakanaka) uye fomura ye green silicon carbide micropowder inoratidza "kuomarara pasi pekuoma". Inogona kubvisa nemazvo mavanga akadzika uye kukuvara kwepasi pevhu kwakasiyiwa nemaitiro apfuura (senge kukuya kwedhaimani), kuisa hwaro hwakanaka uye kubvisa zvipingamupinyi zvekupukuta kwakanaka kunotevera (senge kushandisa silica sol). Basa iri re "kubatanidza rekare nerinotevera" rakakosha. Pasina iyo kubvisa "kukuvara kwakaoma" zvinobudirira, danho rekupukuta kwakanaka rinotora nguva richawedzerwa zvakanyanya, uye mwero wekubereka uchava wakaoma kuvimbisa. Izvi zvakafanana nekuvaka imba. Green silicon carbide ndiyo "nyanzvi yekushanda" inoisa hwaro nekukurumidza uye nyore uye inovaka madziro anotakura mutoro. Pasina iyo, "basa rakanaka" rekunama goridhe foil gare gare richave risina maturo.
4. Kutamba ne "kukuya mvura": kugadzikana ndiyo nzira yekugara kwenguva refu
Upfu hwe silicon carbide hwakasvibira hune hunhu hwakagadzikana hwemakemikari (husina kusimba) uye hahusi nyore kuhushandisa nema fluids anoshandiswa mumvura kana mafuta. Izvi zvinorevei? Upfu hwacho hwakagadzikana uye hahusi nyore kuora, kugadzikana kana kuungana! Pamutsetse wekupukuta une mwero wepamusoro we automation, kushanda kwakasimba kweupfu ndiko kunobatsira. Funga nezvazvo, kana dzimwe nguva chinhu chakakora uye dzimwe nguva chakatetepa, uye zvidimbu zvikabatana kuti zvivhare pombi, mari yekugadzirisa nekugadzira michina ichave yakaipa sei?Kabhoni Yegirini"Zvinoita kuti vanhu vasazvidya mwoyo. Slurry yakagadzirwa inogona kushanda nguva imwe chete kana kupfuura, zvichideredza zvakanyanya huwandu hwekuvharwa kwemagetsi kuti zvigadzirise maparamita uye mapaipi acheneswe. Lao Wu, mutariri wekugadzira wefekitori yesimbi yeceramic bearing, akati nemanzwiro: "Sezvo slurry yegirini yakagadzikana yesilicon carbide yakachinjwa, ndinogona kugara pasi ndonwa tii inopisa panguva yekuongorora kwehusiku. Zvaimboita sekudzima moto!"
Munguva ino yekutsvaga kurongeka uye kushanda zvakanaka,upfu hwegirini hwesilicon carbideyakashandisa simba rayo re "hasha dzechisimba" kuti igadzire zita rayo rinoshanda uye rakavimbika riri kumashure kwenzvimbo dzisingaverengeki dzakapfava dzakaita segirazi - harisi basa rakapfava, asi "chombo chakavanzika" chakakodzera kuvandudza mashandiro ekukwesha.