Ukusetshenziswa Okuningi Kwe-Alumina Powder Embonini Yezimoto
Ngena ngaphakathi kwanoma iyiphi imoto yesimanje futhi uzotholaimpuphu ye-alumina yenza imisebenzi eminingi ngokuthula, kodwa ayibonwa kakhulu ngabathengi. Namuhla, ake siphakamise i-hood sibone ukuthi le mpuphu emhlophe ihlanganyela kanjani ngokujulile ekunyakazeni "komzimba wonke" wemoto.
Ⅰ. “Amathambo Aqinile” Ama-Brake Pads
“Amabhuleki abuthakathaka? Cishe izinto zokungqubuzana aziqinile ngokwanele!” kukhala uchwepheshe efektri yamabhuleki ngenkathi ehlola amabhuleki. Amandla ayo ayamangalisa: ukwengeza u-3%-5% kuphela ezintweni zokungqubuzana kungandisa kakhulu ubulukhuni bomphezulu webhuleki. Kufana nesendlalelo esincane sezikhali, okuvimbela ukuthi ingaguquki noma iwele ngaphansi kokungqubuzana okushisa okuphezulu. Idatha evela ku-Hangzhou Jikang New Materials ikhombisa ukuthi ukungezwa kwalesi sithako kuthuthukisa ukumelana nokuguguleka kwebhuleki ngamaphesenti angaphezu kuka-15, okwenza kube ithuluzi lokonga izindleko zamatekisi aqala futhi eyeka njalo.
Kungcono nakakhulu ukuqina kwayo - ukugqwala kwe-asidi ne-alkali? Ayikho inkinga! Amazinga okushisa angu-800°C? Noma kunjalo! Izinkinga zokugqwala nokuklwebha kwama-brake pad ensimbi yendabuko zixazululwa kalula ngefomula ye-ceramic ethuthukisiwe ye-nano-alumina.
II. “Indlu Yoju” Yokuhlanza Igesi Yokukhipha Umoya
Efektri ye-catalyst yaseBeijing, izisebenzi zifaka i-slurry ekhilimu esithwalweni se-ceramic esinomumo wezinyosi. Ingqikithi yalesi slurry yi-gamma-phase i-nano-alumina, enobuso obungu-130-200 m²/g. Lokhu kusho ukuthi igremu elilodwa lale nto, elisakazeke ngaphezu kwengxenye yobukhulu benkundla yebhasikidi, lilingana nobukhulu obuphindwe kathathu.
Uma ukukhishwa kwemoto kudlula kulezi zimbozo ezincane, ama-molecule e-carbon monoxide kanye ne-nitrogen oxide anamathela ngokuqinile ezindaweni ezimboziwe ze-alumina. Ama-catalyst ensimbi ayigugu abese ethatha isinyathelo, awaguqule abe amagesi angenangozi. Uchwepheshe kwaJingcheng New Materials usebenzise isifaniso: “I-Alumina ifana ne-scaffolding yesakhiwo, ivumela i-platinum ne-palladium, 'ama-VIP', ukuthi ahlale ngokuqinile futhi asebenze kanzima!”
Ukuhlolwa kukhombisile ukuthi ama-catalyst asebenzisa i-10-30nmi-alumina ukwandisa umsebenzi wokushisa okuphansi cishe ngo-20%—okusho ukuhlanzwa komoya ngokushesha ngisho nangesikhathi sokuqala okubandayo, okubalulekile ekuhlangabezaneni nezindinganiso eziqinile zokukhishwa komoya eChina VIb.
III. “Ipheshi Lokupholisa” Lamaphakethe Ebhethri
Yini abanikazi bezimoto ezintsha zamandla abayesaba kakhulu? Ukushisa ngokweqile kwebhethri! Unjiniyela kwa-Hangzhou Jiupeng New Materials ubonise ithubhu lejeli elihambisa ugesi elifana namazinyo: “Uyakubona lokho kukhanya kwesiliva? U-60% walo uyi-alumina eyindilinga!” I-CY-L15S alumina thermal conductive powder isebenza “njengesivikelo sokupholisa” seseli lebhethri.
Igrisi ye-silicone yendabuko inokushisa okungu-1.5W/mK kuphela, kuyilapho ijeli egcwele i-alumina ingafinyelela ngaphezu kuka-6W/mK. Ukuhlolwa kwebhethri okuvela ku-CATL kubonise ukuthi ukufaka ungqimba olufudumezayo lwe-alumina kunciphisa umehluko wokushisa kumaseli ebhethri ngesikhathi sokushaja okusheshayo kusuka ku-15°C kuya ngaphakathi kuka-5°C—uma umehluko wokushisa uncane, kulapho impilo yebhethri iba yinde khona.
Uhlelo lokukhulisa lweTianma New Materials luqinisekisa futhi isidingo esikhulayo: iphrojekthi yokukhiqiza amathani angu-5,000 e-alumina powder ephehla ukushisa okuphezulu iqalile minyaka yonke, ihlose imakethe yokupholisa yezinhlelo ezintathu zikagesi zezimoto ezintsha zamandla.
IV. “Indoda Yokuqinisa” Elula
"Ukunciphisa isisindo ngaphandle kokudela amandla" kuyisihluthulelo sezimoto ezilula. Egumbini lesampula leShanghai Gaoquan Chemical, i-alumina micropowder engu-80-160 gauge α-phase ifakwa ku-epoxy resin: "Ukuyifaka kunganciphisa ubukhulu bodonga lwe-bumper bracket ngo-0.5mm, kuyilapho empeleni kwandisa amandla ayo!"
Isimiso sifana nokhonkolo oqinisiwe:izinhlayiya ze-aluminakwakha “isikele esincane” ngaphakathi kwepulasitiki. Idatha evela kumenzi wezimoto othile ikhombisa ukuthi ukwengeza i-alumina engu-30% ezintweni ze-polyamide ngaphakathi kwe-hood yenjini kwandisa izinga lokushisa lokuguqulwa kokushisa kusuka ku-160°C kuya ku-290°C—okuwukusindisa impilo yezingxenye eziseduze ne-turbocharger.
Okungcono nakakhulu yizindleko: ukuqinisa i-carbon fiber kubiza njengegolide, kuyilapho izinhlanganisela ze-alumina zibiza ingxenye eyodwa kwezintathu kuphela.
I-V. Spark Plug “I-Refractory Armor”
Hlukanisa ipulaki ye-spark yenjini bese ubona ukukhanya okukhazimulayo kwe-micropowder ye-alumina eshisa kakhulu ku-insulator ye-ceramic. Umbiko wokuhlola ovela eShanghai Gaoquan Chemical Industry ukhombisa ukuthi umzimba we-ceramic, owakhiwe yi-alumina ye-α-phase engu-96%, ungamelana nokuqhuma okungazelelwe ku-1700°C.
“Sasisebenzisa izinto zobumba ezivamile, futhi zaziqhekeka futhi zivuza ngemva kwamakhilomitha angu-80,000.” Unjiniyela oyinhloko wefektri ye-spark plug wabamba i-spark plug entsha.i-alumina ceramic umzimba wathi, “Manje, ngemva kwamakhilomitha angu-150,000, noma ama-electrode esha, i-ceramic ihlala injalo!” Lokhu kungenxa yobuntu “obuqinile” be-alumina—ayinyakazi emazingeni okushisa aphezulu futhi inomthamo wokukhulisa ukushisa ophansi, okwenza ibe isisekelo esiqinile njengedwala ngaphakathi “kweNtaba Evuthayo” yesilinda.
VI. “I-Ace Entsha” Yempi Yesikhathi Esizayo
Ukusungula izinto ezintsha nge-alumina kuyaqhubeka ngaphandle kokuphazamiseka. I-alumina engavamile eguqulwe umhlaba isivele ivelele elabhorethri: ama-brake pad aqukethe inani elincane le-yttrium oxide athuthukisa ukumelana nokuguguleka ngo-10%, kuyilapho izembozo ze-catalyst ezithuthukisiwe nge-cerium oxide zandisa isikhathi sokuphila ngo-30%.
Ezinye izinhlelo zokusebenza ezisezingeni eliphezulu zisekushayeleni okuhlakaniphile—amalensi e-radar angama-millimeter-wave adinga izinto ezidlulisa amaza kanye neziqeda ukushisa. Inkampani yaseHangzhou ihlola izinto ezihlanganisiwe ze-alumina/silicone: i-dielectric constant yayo ihlala izinzile ku-3.2, futhi ukuhanjiswa kwayo kokushisa kuphindwe kahlanu kunepulasitiki yendabuko, okuvumela i-radar ukuthi "ibone" umgwaqo ngokunembile ngisho noma amazinga okushisa angu-120°C.
Kusukela ezimotweni zikaphethiloli zendabuko kuya ezimotweni ezihlakaniphile zikagesi, uchungechunge lwenani le-impuphu ye-aluminaiyaqhubeka nokukhula. Kungase kungaveli ezincwajana zezimoto, kodwa uma sibamba isiteringi, ibhuleki ngalinye eliphephile, ukukhishwa kukagesi okuphumelelayo, kanye nokukhipha umoya okuhlanzekile kuvikelwe buthule yilo mpuphu omhlophe, ofihliwe ekubonakaleni.
Futhi ngokuvela kwezinkundla zempi ezintsha ezifana nama-solid-state battery thermal insulation pads kanye nama-hydrogen fuel cell stack guide plates, indlela ye-alumina yokuba “iqhawe elifihliwe” iyaqhubeka nokukhula.