Izinkomba zobuchwepheshe ze-diamond micro powder esezingeni eliphezulu zifaka phakathi ukusatshalaliswa kosayizi wezinhlayiya, ukuma kwezinhlayiya, ubumsulwa, izakhiwo zomzimba kanye nezinye izilinganiso, ezithinta ngqo umphumela wokusetshenziswa kwayo ezimweni ezahlukene zezimboni (njengokupholisha, ukugaya, ukusika, njll.). Lezi yizinkomba zobuchwepheshe ezibalulekile kanye nezidingo ezihlungwe emiphumeleni yokusesha ephelele:
Amapharamitha okusatshalaliswa kosayizi wezinhlayiya kanye nokuchazwa kwezimpawu
1. Ububanzi bosayizi wezinhlayiya
Usayizi wezinhlayiya ze-diamond micro powder ngokuvamile u-0.1-50 microns, futhi izidingo zosayizi wezinhlayiya ziyahlukahluka kakhulu ezimweni ezahlukene zokusetshenziswa.
Ukupholisha: Khetha i-micron engu-0-0.5 kuya ku-6-12 micron yempuphu encane ukuze unciphise imihuzuko futhi uthuthukise ukuqeda kwendawo 5
Ukugaya: Impuphu encane esukela kuma-micron angu-5-10 kuya kuma-micron angu-12-22 ifaneleka kakhulu kokubili ukusebenza kahle kanye nekhwalithi yobuso.
Ukugaya kahle: Impuphu ye-micron engu-20-30 ingathuthukisa ukusebenza kahle kokugaya
2. Ukuhlukaniswa kosayizi wezinhlayiya
I-D10: usayizi wezinhlayiya ohambisanayo ongu-10% wokusatshalaliswa okuqongelelekayo, okubonisa isilinganiso sezinhlayiya ezincane. Ingxenye yezinhlayiya ezincane kufanele ilawulwe ukuze kugwenywe ukwehla kokusebenza kahle kokugaya.
I-D50 (ububanzi obuphakathi): imele usayizi wezinhlayiya omaphakathi, okuyipharamitha eyinhloko yokusatshalaliswa kosayizi wezinhlayiya futhi ithinta ngqo ukusebenza kahle kokucubungula kanye nokunemba.
I-D95: usayizi wezinhlayiya ohambisanayo wokusatshalaliswa okuhlanganisiwe okungu-95%, kanye nokulawula okuqukethwe kwezinhlayiya eziqinile (njengoba i-D95 idlula izinga kulula ukuyibangela imihuzuko ezindaweni zokusebenza).
I-Mv (usayizi wezinhlayiya ezimaphakathi wevolumu): ithinteke kakhulu yizinhlayiya ezinkulu futhi isetshenziselwa ukuhlola ukusatshalaliswa kokuphela okumaphakathi
3. Uhlelo olujwayelekile
Izindinganiso zomhlaba wonke ezisetshenziswa kakhulu zifaka phakathi i-ANSI (isib. D50, D100) kanye ne-ISO (isib. ISO6106:2016).
Okwesibili, ukuma kwezinhlayiya kanye nezici zobuso
1. Amapharamitha womumo
Ukuyindilinga: lapho ukuyindilinga kusondele ku-1, kulapho izinhlayiya ziba yindilinga kakhulu futhi umphumela wokupholisha uba ngcono; izinhlayiya ezinobuyindilinga obuphansi (amakhona amaningi) zifaneleka kakhulu kuma-wire saw asebenzisa i-electroplating kanye nezinye izigcawu ezidinga imiphetho ebukhali.
Izinhlayiya ezifana nepuleti: izinhlayiya ezinokudluliselwa okungaphezulu kuka-90% zibhekwa njengezifana nepuleti, futhi isilinganiso kufanele sibe ngaphansi kuka-10%; izinhlayiya eziningi ezifana nepuleti zizoholela ekuphambukeni kokutholwa kosayizi wezinhlayiya kanye nomphumela wokusetshenziswa ongazinzile.
Izinhlayiya ezifana nobuhlalu: isilinganiso sobude nobubanzi bezinhlayiya> 3:1 kufanele silawulwe ngokuqinile, futhi isilinganiso akufanele sidlule u-3%.
2. Indlela yokuthola isimo
I-microscope ebonakalayo: ifanelekela ukubonwa kwesimo sezinhlayiya ezingaphezu kwama-micron amabili
I-scanning electron microscope (SEM): isetshenziselwa ukuhlaziya isimo sezinhlayiya ezi-ultrafine ezingeni le-nanometer.
Ukulawula ubumsulwa nokungcola
1. Okuqukethwe okungcolile
Ubumsulwa bedayimani kufanele bube ngaphezu kuka-99%, kanti ukungcola kwensimbi (njengensimbi, ithusi) nezinto eziyingozi (isulfure, i-chlorine) kufanele kulawulwe ngokuqinile ngaphansi kuka-1%.
Ukungcola okunamandla kamagnetic kufanele kube kuphansi ukuze kugwenywe umthelela wokuhlangana ekupholisheni ngokunemba.
2. Ukuzwela kumagnetic
Idayimani elicwengekile kakhulu kufanele lisondele ku-non-magnetic, futhi ukuzwela okuphezulu ku-magnetic kubonisa ukungcola kwensimbi okusele, okudingeka kutholakale ngendlela yokungenisa i-electromagnetic.
Izinkomba zokusebenza ngokomzimba
1. Ukuqina komthelela
Ukumelana nokuchotshozwa kwezinhlayiya kubonakala ngesivinini esingaphuki (noma izikhathi eziqhekekile kancane) ngemva kokuhlolwa komthelela, okuthinta ngqo ukuqina kwamathuluzi okugaya.
2. Ukuqina kokushisa
Impuphu ecolekile idinga ukugcina ukuqina ekushiseni okuphezulu (njengo-750-1000℃) ukuze igweme ukwakheka kwe-graphite noma i-oxidation okuholela ekunciphiseni amandla; ukutholwa okusetshenziswa kakhulu kwe-thermogravimetric analysis (TGA).
3. Ubulukhuni obuncane
Ubulukhuni bempuphu yedayimane bufika ku-10000 kq/mm2, ngakho-ke kuyadingeka ukuqinisekisa amandla aphezulu ezinhlayiya ukuze kugcinwe ukusebenza kahle kokusika.
Izidingo zokuzivumelanisa nezimo zesicelo 238
1. Ibhalansi phakathi kokusatshalaliswa kosayizi wezinhlayiya kanye nomphumela wokucubungula
Izinhlayiya ezimahhadlahhadla (njenge-D95 ephezulu) zithuthukisa ukusebenza kahle kokugaya kodwa zinciphisa ukuqeda kobuso: izinhlayiya ezincane (i-D10 encane) zinomphumela ophambene. Lungisa ububanzi bokusatshalaliswa ngokwezidingo.
2. Ukuzivumelanisa nesimo
Izinhlayiya ezinama-block amaningi zifanelekela amasondo okugaya i-resin; izinhlayiya eziyindilinga zifanelekela ukupholisha ngokunemba.
Izindlela zokuhlola kanye nezindinganiso
1. Ukutholwa kosayizi wezinhlayiya
Ukwehlukaniswa kwe-laser: kusetshenziswa kabanzi kwezinhlayiya ze-micron/submicron, ukusebenza okulula kanye nedatha ethembekile;
Indlela yesihluzo: isebenza kuphela ezinhlayiyeni ezingaphezu kwama-micron angu-40;
2. Ukutholwa komumo
Isihlaziyi sesithombe sezinhlayiya singalinganisa amapharamitha anjengobubanzi futhi sinciphise iphutha lokubuka ngesandla;
Fingqa
I-diamond micro-powder esezingeni eliphezulu idinga ukulawulwa okuphelele kokusatshalaliswa kosayizi wezinhlayiya (D10/D50/D95), ukuma kwezinhlayiya (ukuyindilinga, ukuqhekeka noma okuqukethwe kwenaliti), ubumsulwa (ukungcola, izakhiwo zikamazibuthe), kanye nezakhiwo zomzimba (amandla, ukuzinza kokushisa). Abakhiqizi kufanele bathuthukise amapharamitha ngokusekelwe ezimweni ezithile zokusetshenziswa futhi baqinisekise ikhwalithi ehambisanayo ngezindlela ezifana ne-laser diffraction kanye ne-electron microscopy. Lapho bekhetha, abasebenzisi kufanele bacabangele izidingo ezithile zokucubungula (njengokusebenza kahle kanye nokuqeda) futhi bafanise izinkomba ngokufanele. Isibonelo, ukupholisha ngokunemba kufanele kubeke phambili ukulawula i-D95 kanye nokuyindilinga, kuyilapho ukugaya okuqinile kungaphumuza izidingo zesimo ukuze kuthuthukiswe ukusebenza kahle.
Okuqukethwe okungenhla kuthathwe kunethiwekhi yezinto eziqinile kakhulu.
Isikhathi sokuthunyelwe: Juni-11-2025
