Lipontšo tsa tekheniki tsa boleng bo phahameng ba daemane e nyane ea phofo e kenyelletsa kabo ea boholo ba likaroloana, sebopeho sa likaroloana, bohloeki, thepa ea 'mele le litekanyo tse ling, tse amang ka kotloloho ts'ebeliso ea eona maemong a fapaneng a indasteri (joalo ka ho bentša, ho sila, ho itšeha, joalo-joalo). Tse latelang ke matšoao a bohlokoa a tekheniki le litlhoko tse hlophisitsoeng ho tsoa liphethong tse felletseng tsa lipatlisiso:
Kabo ea boholo ba likaroloana le liparamente tsa sebopeho
1. Mofuta oa boholo ba likaroloana
Boholo ba karoloana ea phofo e nyane ea taemane hangata ke li-microns tse 0.1-50, 'me litlhoko tsa boholo ba karoloana li fapana haholo maemong a fapaneng a ts'ebeliso.
Ho penta: Khetha 0-0.5 micron ho 6-12 micron ea phofo e nyane ho fokotsa mengoapo le ho ntlafatsa pheletso ea bokaholimo 5
Ho sila: Phofo e nyane ho tloha ho li-microns tse 5-10 ho isa ho 12-22 microns e loketse ho sebetsa hantle le boleng ba bokaholimo.
Ho sila hantle: 20-30 micron phofo e ka ntlafatsa ts'ebetso ea ho sila
2. Sebopeho sa kabo ea boholo ba karolo
D10: boholo bo lekanang ba karoloana ea 10% ea kabo e akaretsang, e bonts'ang karolo ea likaroloana tse ntle. Karolo ea likaroloana tse ntle e lokela ho laoloa ho qoba ho fokotseha ha bokhoni ba ho sila.
D50 (bohare bo bohareng): e emela boholo ba likaroloana tse tloaelehileng, e leng parameter ea mantlha ea kabo ea boholo ba likaroloana 'me e ama ka ho toba ts'ebetso ea ts'ebetso le ho nepahala.
D95: e tsamaellanang le phatsa boholo ba 95% cumulative kabo, le ho laola dikahare tsa mahoashe likaroloana (tse kang D95 feteng maemo ke ho le bonolo ho baka mengoapo ka workpieces).
Mv (bolumo ka karolelano ea boholo ba likaroloana): e anngoe haholo ke likaroloana tse kholo mme e sebelisetsoa ho lekola phetiso e kholo ea pheletso.
3. Mokhoa o tloaelehileng
Maemo a machaba a sebelisoang hangata a kenyelletsa ANSI (mohlala, D50, D100) le ISO (mohlala ISO6106:2016).
Ea bobeli, sebopeho sa likaroloana le litšobotsi tsa bokaholimo
1. Mekhahlelo ea sebopeho
Ho pota-pota: ho pota-pota ho pota-potile ho 1, likaroloana li le selikalikoe le ho ntlafatsa phello ea polishing; likaroloana tse nang le chitja tse tlase (likhutlo tse ngata) li loketse haholoanyane bakeng sa lisakha tsa terata tsa electroplating le litšoantšo tse ling tse hlokang metshetshe e bohale.
Likaroloana tse kang poleiti: likaroloana tse nang le phetiso> 90% li nkuoa li le joalo ka poleiti, 'me karolo e lokela ho ba ka tlase ho 10%; likaroloana tse ngata tse kang poleiti li tla lebisa ho khelohe ho lemoha boholo ba likaroloana le phello e sa tsitsang ea ts'ebeliso.
Likaroloana tse kang lifaha: bolelele le bophara ba karo-karolelano ea likarolo> 3: 1 e lokela ho laoloa ka thata, 'me karolo ha ea lokela ho feta 3%.
2. Mokhoa oa ho lemoha sebopeho
microscope ea optical: e loketse ho shebella sebopeho sa likaroloana tse ka holimo ho 2 microns
Ho hlahloba microscope ea elektronike (SEM): e sebelisetsoang tlhahlobo ea morphology ea likaroloana tsa ultrafine boemong ba nanometer.
Bohloeki le taolo ea litšila
1. Litaba tse litšila
Ho hloeka ha daemane ho lokela ho ba> 99%, le litšila tsa tšepe (tse kang tšepe, koporo) le lintho tse kotsi (sebabole, chlorine) li lokela ho laoloa ka thata ka tlase ho 1%.
Litšila tsa makenete li lokela ho ba tlase ho qoba phello ea agglomeration mabapi le ho belisoa ka nepo.
2. Tšoaetso ea Magnetic
Taemane e hloekileng e phahameng e lokela ho ba haufi le e seng ea makenete, 'me ts'oaetso e phahameng ea makenete e bonts'a litšila tse setseng tsa tšepe, tse hlokang ho bonoa ka mokhoa oa ho kenella ka motlakase.
Lipontšo tsa ts'ebetso ea 'mele
1. Tšusumetso e thata
Ho hanyetsa ho senya ha likaroloana ho khetholloa ke lebelo le sa tsitsang (kapa linako tse fokolang) ka mor'a tlhahlobo ea tšusumetso, e amang ka ho toba ho tšoarella ha lisebelisoa tsa ho sila.
2. Ho tsitsa ha mocheso
Phofo e ntle e hloka ho boloka botsitso mocheso o phahameng (joalo ka 750-1000 ℃) ho qoba ho thehoa ha graphite kapa oxidation e bakang ho fokotsa matla; ho fumanoa ha thermogravimetric analysis (TGA) hangata.
3. Microhardness
Microhardness ea phofo ea daemane e fihla ho 10000 kq/mm2, ka hona hoa hlokahala ho netefatsa matla a phahlo e phahameng ho boloka ts'ebetso ea ho itšeha.
Litlhoko tsa maemo a kopo 238
1. Ho leka-lekanya pakeng tsa kabo ea boholo ba likaroloana le phello ea ts'ebetso
Likaroloana tse mahoashe (tse kang D95 e phahameng) li ntlafatsa bokhoni ba ho sila empa li fokotsa ho qeta holimo: likaroloana tse ntle (D10 tse nyenyane) li na le phello e fapaneng. Fetola sebaka sa kabo ho latela litlhoko.
2. Ho ikamahanya le sebopeho
Thibela likaroloana tse nang le mahlakore a mangata li loketse mabili a silang a resin; likaroloana tse chitja li loketse ho belisoa ka nepo.
Mekhoa ea liteko le litekanyetso
1. Ho lemoha boholo ba likaroloana
Laser diffraction: e sebelisoa haholo bakeng sa likaroloana tsa micron / submicron, ts'ebetso e bonolo le data e tšepahalang;
Mokhoa oa sieve: o sebetsa feela ho likaroloana tse ka holimo ho 40 microns;
2. Ho lemoha sebopeho
Particle image analyser e ka lekanya liparamente tse kang sphericity le ho fokotsa phoso ea ho shebella ka letsoho;
akaretsa
Powder ea boleng bo phahameng ba daemane e hloka taolo e felletseng holim'a kabo ea boholo ba likaroloana (D10 / D50 / D95), sebopeho sa likaroloana (roundness, flake kapa nale content), bohloeki (litšila, thepa ea makenete), le thepa ea 'mele (matla, botsitso ba mocheso). Baetsi ba lokela ho ntlafatsa liparamente ho ipapisitsoe le maemo a ikhethileng a ts'ebeliso le ho netefatsa boleng bo ts'oanang ka mekhoa e joalo ka laser diffraction le electron microscopy. Ha ba khetha, basebelisi ba lokela ho nahana ka litlhoko tse itseng tsa ts'ebetso (joalo ka ts'ebetso le ho qetela) 'me ba bapise matšoao ho latela. Mohlala, ho belisoa ho nepahetseng ho lokela ho etelletsa pele ho laola D95 le ho pota-pota, athe ho sila ka thata ho ka phomotsa litlhoko tsa sebopeho ho ntlafatsa ts'ebetso.
Litaba tse ka holimo li qotsitsoe ho marang-rang a thepa ea superhard.
Nako ea poso: Jun-11-2025
