Umgubo wedayimani wasekhaya kunye nokunye | uhlobo lwedayimani yekristale enye njengento ekrwada, kodwa | chwetheza umxholo wokungcola okuphezulu, amandla aphantsi, anokusetyenziswa kuphela kwimfuno esezantsi yemveliso yemarike. Abavelisi bedayimani abambalwa basekhaya basebenzisa uhlobo lwe-I1 okanye uhlobo lwe-Sichuan lwedayimani enye yekristale njengemathiriyeli ekrwada ukuvelisa umgubo wedayimani, ukusebenza kakuhle kwawo kukhulu kunomgubo wedayimani oqhelekileyo, onokuhlangabezana nemfuno yemarike ephezulu. Idayimani yomgubo wobunzima obuphezulu, ukumelana nokunxiba kakuhle, isetyenziswa ngokubanzi ekusikeni, ukucola, ukugrumba, ukupolisha kunye namanye amasimi. Ngophuhliso kunye nenkqubela phambili yesayensi kunye nobuchwepheshe, imfuno yemarike yomgubo wedayimani iya ikhula ngokukhula, kwaye iimfuno zomgangatho ziya zisiba phezulu nangaphezulu. Kwipowder yedayimane, ubuninzi bokungcola kwidayimani yedayimani buchaphazela ngokuthe ngqo umgangatho wemveliso kunye nokusebenza komgubo.
Iintlobo ezingenakucimeka
Ukungcola komgubo wedayimane kubhekiselele kumacandelo angenayo i-carbon powder kwi-diamond powder, enokuthi ihlulwe ibe yi-granular yangaphandle kunye nokungcola kwangaphakathi. Ukungcola kwangaphandle kweengqungquthela zikwaziswa ngokukodwa ngezinto eziluhlaza kunye nenkqubo yokuvelisa, kuquka i-silicon, isinyithi, i-nickel, i-calcium, i-magnesium kunye ne-cadmium; ukungcola kwangaphakathi kwamasuntswana angeniswa kwinkqubo yokwenziwa kwedayimane, ngokukodwa kubandakanywa isinyithi, i-nickel, i-cobalt, i-manganese, i-cadmium, ithusi, njl njl. Ukungcola kwi-powder yedayimane kuya kuchaphazela iipropati zomphezulu we-powder particles, ukwenzela ukuba imveliso ingabi lula ukusabalalisa. Intsimbi, i-nickel kunye nezinye izinto ezingcolileyo ziya kwenza ukuba imveliso ivelise idigri ezahlukeneyo zemagnetism, ukusetyenziswa komgubo.
, Indlela yokufumanisa ukungcola
Kukho iindlela ezininzi zokufumanisa ukungcola komxholo we-diamond powder, kubandakanywa indlela yobunzima, i-spectroscopy ye-atomic emission, i-spectroscopy yokufunxa i-athomu, njl., iindlela ezahlukeneyo zokufumanisa zingakhethwa ngokweemfuno ezahlukeneyo.
uhlalutyo lwegravimetric
Indlela yobunzima ifanelekile ukuhlalutya kunye nokufumanisa umxholo wokungcola okupheleleyo (ngaphandle kwezinto ezivuthayo ezivuthayo kwiqondo lokushisa elivuthayo). Esona sixhobo siphambili sibandakanya i-mafer furnace, ibhalansi yohlalutyo, i-porcelain crucible, isomisi, njl njl. Indlela yokuvavanya umxholo wokungcola kwinqanaba lemveliso ye-micropowder yindlela yokulahleka kobushushu obuphezulu: isampuli ngokuhambelana nemimiselo kwaye uthathe isampuli yokuvavanya kwi-crucible kunye nobunzima obuqhubekayo, beka i-crucible equlethe isampuli ukuba ihlolwe kwisithando somlilo esivumelekileyo ℃ 20℃), ubunzima obushiyekileyo bubunzima obuyingxubevange, kwaye ipesenti yobunzima iyabalwa.
2, i-atomic emission spectrometry, i-athom yokufunxa i-spectroscopy
I-atomic emission spectroscopy kunye ne-atomic atomic absorption spectroscopy zilungele uhlalutyo lomgangatho kunye nobuninzi bezinto zokulandelela.
(1) I-Atomic emission spectrometry: yindlela yocazululo yohlalutyo lobulunga okanye lobungakanani bomgca wemitha yeempawu oveliswa lutshintsho lwe-electron ukusuka kumandla angaphandle eekhemikhali ezahlukeneyo. Indlela yokukhutshwa kweathom ivumela uhlalutyo lwezinto ezimalunga nama-70. Ngokubanzi, umlinganiselo wamacandelo angaphantsi kwe-1% unokulinganisa ngokuchanekileyo inqanaba le-ppm lokulandelela izinto kumgubo wedayimane. Le ndlela yeyokuqala eveliswe kwaye iphuhliswe kuhlalutyo lwe-optical. I-atomic emission spectrometry idlala indima ebalulekileyo kuhlalutyo lomgangatho kunye nobungakanani bezinto ezahlukeneyo zanamhlanje. Ineenzuzo ze-multi-element ukukwazi ukufumanisa ngaxeshanye, isantya sokuhlalutya ngokukhawuleza, umda ophantsi wokufumanisa kunye nokuchaneka okuphezulu.
(2) I-athom yokufunxa i-spectroscopy: xa i-radiation ekhutshwe ngumthombo othile wokukhanya idlula kumphunga we-athom yento emele ilinganiswe, ifunxwe yi-athom yelizwe eliphantsi, kwaye iqondo lokufunxa elilinganisiweyo linokulinganiswa uhlalutyo lwe-elemental.
I-spectrometry yokufunxa i-atomic kwaye inokuncedisana kwaye ayinakutshintshwa enye kwenye.
3. Izinto ezichaphazela imilinganiselo yobumdaka
1. Impembelelo yomthamo wesampulu kwixabiso lovavanyo
Ngokwenza, kufunyenwe ukuba isampuli yesampulu ye powder yedayimane inempembelelo enkulu kwiziphumo zovavanyo. Xa inani lesampulu li-0.50g, ukuphambuka okuqhelekileyo kovavanyo kukhulu; xa isixa sesampulu siyi-1.00g, ukutenxa okuphakathi kuncinci; xa inani lesampulu li-2.00g, nangona ukuphambuka kuncinci, ixesha lokuvavanya landa kwaye ukusebenza kakuhle kuyancipha. Ke ngoko, ngexesha lokulinganisa, ukunyusa ngobumfama isixa sesampulu akuyomfuneko ukuba kuphucule ukuchaneka nokuzinza kweziphumo zohlalutyo, kodwa kuya kwandisa kakhulu ixesha lokusebenza kunye nokunciphisa ukusebenza kakuhle.
2. Impembelelo ye-particle particle size kumxholo wokungcola
I-particle ye-diamond powder icolile, iphakamisa umxholo wokungcola kumgubo. Umyinge we-particle ye-particle yi-3um kwi-powder ecocekileyo yedayimane kwimveliso, ngenxa yobukhulu becala elincinci, enye i-asidi kunye nesiseko sezinto ezinganyibilikiyo ezixutywe kwizinto eziluhlaza akulula ukuhlukana, ngoko ke zihlala zibe ngumgubo ococekileyo, ngaloo ndlela ukwandisa umxholo wokungcola. Ngaphezu koko, kokukhona ecolekileyo ubukhulu besuntswana, ngakumbi kwinkqubo yokwenziwa, kokukhona ukungcola ngakumbi ukuya yangaphandle, ezifana dispersant, ukumisa ulwelo, imveliso bume uthuli ungcoliseko lokungcola kuphononongo lomgubo isampuli ukungcola uvavanyo lomxholo ukungcola, safumanisa ukuba ngaphezu kwe-95% yemveliso yedayimane erhabaxa-grained diamond, umxholo wayo ukungcola ngaphantsi kwe-0.50% umgubo ocoliweyo ngezantsi-imveliso yomgubo ongaphantsi kwe-0.50%, imveliso yokungcola engaphantsi kwe-0.50% 1.00%. Ngoko ke, ekulawuleni umgangatho we powder, umgubo ococekileyo kufuneka ube ngaphantsi kwe-1.00%; umxholo wokungcola kwe-3um kufuneka ube ngaphantsi kwe-0.50%; kunye neendawo ezimbini zedesimali kufuneka zigcinwe emva komxholo wokungacoceki kwedatha kumgangatho. Ngenxa yokuba ngenkqubela phambili yeteknoloji yokuvelisa i-powder, umxholo wokungcola kwi-powder uya kunciphisa ngokuthe ngcembe, inxalenye enkulu yokungcola kwepowder coarse ingaphantsi kwe-0.10%, ukuba indawo enye yedesimali igcinwe, umgangatho wayo awukwazi ukwahlula ngokufanelekileyo.
Eli nqaku lithathwe kwi "inethiwekhi superhard impahla"
Ixesha lokuposa: Mar-20-2025
