Izinkomba zobuchwepheshe zekhwalithi ephezulu yedayimane impushana encane ibandakanya ukusatshalaliswa kosayizi wezinhlayiyana, ukuma kwezinhlayiyana, ukuhlanzeka, izakhiwo ezingokomzimba nobunye ubukhulu, obuthinta ngokuqondile umphumela wayo wokusetshenziswa ezimweni ezihlukene zezimboni (njengokupholisha, ukugaya, ukusika, njll.). Okulandelayo yizinkomba zobuchwepheshe ezibalulekile nezimfuneko ezihlungwe emiphumeleni yosesho ebanzi:
Ukusabalalisa usayizi we-particle kanye nemingcele yezinhlamvu
1. Ibanga losayizi wezinhlayiya
Usayizi wezinhlayiyana zedayimane micro powder ngokuvamile 0.1-50 microns, futhi izidingo usayizi wezinhlayiyana ziyahlukahluka kakhulu ezimweni ezahlukene isicelo.
Ukupholisha: Khetha i-micron engu-0-0.5 ukuya ku-6-12 micron yempushana encane ukuze unciphise imihuzuko futhi uthuthukise isiphetho esiphezulu 5
Ukugaya: I-Micro-powder esukela ku-5-10 microns kuya ku-12-22 microns ifaneleka kakhulu kukho kokubili ukusebenza kahle kanye nekhwalithi yendawo.
Ukugaya okuhle: I-20-30 micron powder ingathuthukisa ukusebenza kahle kokugaya
2. Izinhlamvu zokusabalalisa usayizi we-particle
I-D10: usayizi wezinhlayiyana ohambisanayo ongu-10% wokusatshalaliswa okuhlanganisiwe, okubonisa ingxenye yezinhlayiya ezinhle. Ingxenye yezinhlayiya ezinhle kufanele ilawulwe ukuze kugwenywe ukunciphisa ukusebenza kahle kokugaya.
I-D50 (ububanzi obumaphakathi): imelela isilinganiso sosayizi wezinhlayiyana, okuyipharamitha eyinhloko yokusabalalisa usayizi wezinhlayiyana futhi ithinta ngokuqondile ukusebenza kahle kokucubungula nokunemba.
I-D95: usayizi wezinhlayiyana ohambisanayo wokusatshalaliswa okuhlanganisiwe okungu-95%, futhi ulawule okuqukethwe kwezinhlayiya ezimahhadla (njenge-D95 eyeqa izinga kulula ukubangela ukuklwebheka ezintweni zokusebenza).
I-Mv (usayizi wezinhlayiya omaphakathi wevolumu): ithinteke kakhulu izinhlayiya ezinkulu futhi isetshenziselwe ukuhlola ukusabalalisa kokuphela
3. Uhlelo olujwayelekile
Izindinganiso zamazwe ngamazwe ezivame ukusetshenziswa zihlanganisa i-ANSI (isb. D50, D100) kanye ne-ISO (isb. ISO6106:2016).
Okwesibili, isimo sezinhlayiyana nezici zangaphezulu
1. Amapharamitha womumo
Ukuyindilinga: lapho ukujikeleza kusondele ku-1, izinhlayiya ziyindilinga futhi kuba ngcono umphumela wokupholisha; izinhlayiya ezinomjikelezo ophansi (amakhona amaningi) zifaneleka kakhulu kumasaha ocingo lwe-electroplating nezinye izigcawu ezidinga imiphetho ebukhali.
Izinhlayiya ezinjenge-plate: izinhlayiya ezinokudlulisa> 90% zithathwa njenge-plate-like, futhi ingxenye kufanele ibe ngaphansi kuka-10%; izinhlayiya ezinjengamapuleti ngokweqile zizoholela ekuphambukeni kokutholwa kosayizi wezinhlayiyana kanye nomthelela wohlelo lokusebenza ongazinzile.
Izinhlayiya ezinjengobuhlalu: isilinganiso sobude nobubanzi bezinhlayiya> 3:1 kufanele silawulwe ngokuqinile, futhi ingxenye akufanele idlule u-3%.
2. Indlela yokuthola umumo
I-Optical microscope: ilungele ukubhekwa komumo wezinhlayiya ezingaphezu kwama-microns angu-2
Iskena i-electron microscope (SEM): isetshenziselwa ukuhlaziya i-morphology yezinhlayiya ze-ultrafine ezingeni le-nanometer.
Ukulawula ukuhlanzeka nokungcola
1. Okuqukethwe ukungcola
Ukuhlanzeka kwedayimane kufanele kube> 99%, futhi ukungcola kwensimbi (okufana nensimbi, ithusi) nezinto eziyingozi (sulphur, chlorine) kufanele kulawulwe ngokuqinile ngaphansi kuka-1%.
Ukungcola kazibuthe kufanele kube kuncane ukugwema umthelela we-agglomeration ekupholiseni okunembayo.
2. Ukuba sengozini kazibuthe
Idayimane elihlanzeke kakhulu kufanele libe seduze nokungelona uzibuthe, futhi ukuba sengozini kazibuthe okuphezulu kukhombisa ukungcola okusalela kwensimbi, okudingeka kutholwe ngendlela yokungeniswa kwe-electromagnetic.
Izinkomba zokusebenza ngokomzimba
1. Ukuqina komthelela
Ukumelana nokuchotshozwa kwezinhlayiya kubonakala ngesilinganiso esinganqamuki (noma izikhathi eziqhekekile kancane) ngemva kokuhlolwa komthelela, okuthinta ngokuqondile ukuqina kwamathuluzi okugaya.
2. Ukuzinza okushisayo
Impushana enhle idinga ukugcina ukuzinza ekushiseni okuphezulu (okufana ne-750-1000℃) ukugwema ukwakheka kwe-graphite noma i-oxidation eholela ekunciphiseni amandla; ukutholwa okujwayelekile kwe-thermogravimetric analysis (TGA).
3. Ukuqina okuncane
I-microhardness yempushana yedayimane ifika ku-10000 kq/mm2, ngakho-ke kuyadingeka ukuqinisekisa amandla ezinhlayiyana eziphezulu ukuze kugcinwe ukusebenza kahle kokusika.
Izidingo zokuvumelana nezimo isicelo 238
1. Ibhalansi phakathi kokusabalalisa usayizi wezinhlayiyana nomphumela wokucubungula
Izinhlayiya ezimahhadla (ezifana ne-D95 ephezulu) zithuthukisa ukusebenza kahle kokugaya kodwa zinciphisa ukuqedwa kwendawo: izinhlayiya ezinhle (i-D10 encane) zinomphumela ophambene. Lungisa ububanzi bokusabalalisa ngokwezidingo.
2. Ukujwayela isimo
I-block multi-edge izinhlayiya zifanelekile amasondo okugaya ama-resin; izinhlayiya eziyindilinga zifanele ukupholisha ngokunemba.
Izindlela zokuhlola namazinga
1. Ukutholwa kosayizi wezinhlayiya
I-Laser diffraction: isetshenziselwa kabanzi izinhlayiya ze-micron/submicron, ukusebenza okulula kanye nedatha ethembekile;
Indlela yesisefo: isebenza kuphela ezinhlayiyeni ezingaphezu kwama-microns angu-40;
2. Ukutholwa komumo
Isihlaziyi sesithombe sezinhlayiya singakwazi ukulinganisa amapharamitha afana ne-sphericity futhi sinciphise iphutha lokubuka mathupha;
Fingqa
Impushana encane yedayimane yekhwalithi ephezulu idinga ukulawula okuphelele phezu kokusabalalisa usayizi wezinhlayiyana (D10/D50/D95), umumo wezinhlayiyana (indilinga, i-flake noma okuqukethwe kwenaliti), ubumsulwa (ukungcola, izakhiwo kazibuthe), kanye nezakhiwo ezibonakalayo (amandla, ukuzinza kokushisa). Abakhiqizi kufanele bathuthukise amapharamitha ngokusekelwe kuzimo zohlelo lokusebenza ezithile futhi baqinisekise ikhwalithi engaguquki ngokusebenzisa izindlela ezifana ne-laser diffraction kanye ne-electron microscopy. Lapho kukhethwa, abasebenzisi kufanele bacabangele izidingo ezithile zokucubungula (ezifana nokusebenza kahle nokuqeda) futhi bamatanise izinkomba ngokufanele. Isibonelo, ukupholishwa okunembayo kufanele kubeke phambili ukulawula i-D95 nokuba yindilinga, kuyilapho ukugaya okuqinile kungaphumuza izidingo zomumo ukuze kuthuthukiswe ukusebenza kahle.
Okuqukethwe okungenhla kucashunwe kunethiwekhi yezinto eziqinile.
Isikhathi sokuthumela: Jun-11-2025
