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Tsebo ea mantlha ea li-blades tsa CNC

Karolo ea 1: Carbide e entsoeng ka samente

1 Khopolo; e entsoe ka motsoako oa tšepe oa refractory (mohato o thata) le tšepe ea binder (mohato o kopanyang) o hlahisoang ke phofo ea metallurgy.
Lisebelisoa tse kopantsoeng. Li-carbide tse sebelisoang ka tloaelo li kenyelletsa: WC TiC TaC (tantalum carbide) NbC (niobium carbide), joalo-joalo.
Binder e sebelisoang hangata: Matla a Co Ni Fe a tiisitsoeng ka carbide haholo-holo a itšetlehile ka litaba tsa cobalt.
Lintlha tse peli tsa carbide e entsoeng ka samente, ho kenyelletsa le matla le boima, li hanyetsana. Ha matla a ntse a eketseha, matla a thata a tla fokotseha. Phapang ea mefuta e samente ea carbide ke phapang lipakeng tsa li-node tsa mekhahlelo ena e 'meli.
2 Likarolo tsa carbide e entsoeng ka samente
1) Boima bo phahameng le khanyetso e phahameng ea ho apara
2) High elastic modulus 3) Matla a phahameng a khatello
4) Botsitso bo botle ba lik'hemik'hale (ho hanyetsa acid, alkali, mocheso o phahameng oa oxidation)
5) Matla a matla a tlase
6) Coefficient e tlase ea ho atolosa, conductivity ea mocheso le motlakase oa motlakase, empa carbide e entsoeng ka samente e brittle 'me e ke ke ea khaoloa; Ha ho bapisoa le tšepe ea tšepe, carbide e entsoeng ka samente e na le melemo e latelang:
a Ntlafatsa bophelo ba tšebeletso ea sesebelisoa;
b Ntlafatsa ts'ebetso ea ho seha le ho sebetsa hantle;
c Ntlafatsa qetello le ho nepahala ha mosebetsi;
d E ka sebetsana le lisebelisoa tse thata ho sebetsa tse kang li-alloys tse sa keneleng mocheso, li-alloys tse sebetsang, le litšepe tse thata tse thata ho sebetsa ka tšepe e phahameng haholo.
3 mohopolo;
Ho itšeha ho tsoelang pele: Nakong ea ho itšeha, moeli oa ho itšeha o lula o kopana le workpiece.

Ho itšeha ka nakoana: Nakong ea ts'ebetso ea ho itšeha, moeli oa ho itšeha o kopana ka linako tse ling le workpiece.

Ho itšeha ka lebelo le phahameng: theknoloji e tsoetseng pele ea ho khaola likarolo ka lebelo le phahameng ka makhetlo a 'maloa ho feta ho itšeha ho tloaelehileng.
4 Kereiti ea ho nepahala ea lehare la CNC

Lisebelisoa tse tloaelehileng tsa lisebelisoa li kenyelletsa tšepe ea lebelo le phahameng, carbide e entsoeng ka samente, carbide e entsoeng ka samente, lirafshoa, li-cubic boron nitride le daemane.
Mefuta e ka sehloohong ea lisebelisoa tsa workpiece ke:
tshepe
P, tšepe e sa hloekang
M, tšepe e entsoeng ka tšepe
K, litšepe tse se nang ferrous
N, motsoako oa boleng bo holimo
S, e thatafetse
Boemo bo nepahetseng ba lehare la CNC:
Mohlala
CNMG120408
, Lengolo la boraro
M
E bontša ho nepahala ha tlhahiso ea lehare. Sebopeho, sebopeho le ts'ebetso ea carbide e entsoeng ka samente
1
Carbide e entsoeng ka samente haholo-holo e kenyelletsa likarolo tse latelang
Wc-mokhahlelo o hanang ho apara
Co-ductile phase
Tic Tac Nbc - mohato o thata
Crc Vc (vanadium carbide) - mohato oa khatello
Sebopeho: Sebopeho sa mekhahlelo e 'meli le sebopeho sa mekhahlelo e meraro,' me mehaho e meraro e khetholla boleng ba carbide e entsoeng ka samente.
Matrix a samente ea carbide (moralo)
+
Sebopeho le sebopeho sa lehare (nama le mali)
+
Ho roala (letlalo)
2 Sehlopha sa carbide e entsoeng ka samente
1) Tungsten-cobalt (WC+Co) carbide e entsoeng ka samente (YG) e lekana le mofuta oa K
2) Tungsten-titanium-cobalt (WC+TiC+Co) mofuta oa carbide e entsoeng ka samente (YT) e lekana le mofuta oa P
3) Tungsten-tantalum-cobalt (WC+TaC+Co) carbide e entsoeng ka samente (YA) e lekana le mofuta oa G
4) Tungsten-titanium-tantalum-cobalt (WC+TiC+TaC+Co) cemented carbide (YW) e lekana le mofuta oa M le mofuta oa P

Sehlopha sa ho sebetsa ka tšepe M

Stainless Steel e Thata ho sebetsa Mofuta oa K

Litšepe tse entsoeng ka tšepe le tse se nang ferrous Sehlopha sa G

Lisebelisoa tsa merafo ea jeoloji

*
Tshebetso:

Boima, boima, matla a ho koba, coercivity, cobalt magnetism, joalo-joalo.
.
3
Ts'ebetso ea tlhahiso ea carbide e entsoeng ka samente

Mokhoa oa setso

Phallo ea ts'ebetso ea lehare la CNC

Lisebelisoa → ho sila ka bolo → ho omisa ka ho fafatsa → ho hatella → ho tsikitlanya → ho hlahloba boea → ho sila → tlhahlobo ea halofo → ho hloekisoa → ho hloekisa → ho roala → tlhahlobo ea ho qetela

Ho lokisa motsoako: metsoako ke efe?

E lokisoa ka mehato eo (mixing-wet grinding-drying-sieving)

Kabo e tšoanang ea metsoako e etsa qeto ea ts'ebetso e hatellang le boleng ba sehlahisoa sohle

4
Tlhahiso ea alloy

Bohareng ba ho sila ka metsi?

joala

Ethane

acetone

4
Tlhahiso ea alloy

Bohareng ba ho sila ka metsi?

joala

Ethane

acetone

Khopolo ea ho hatella: Tlatsa lesoba la lefu ka motsoako, ebe o tobetsa mochine ho pepeta motsoako oa phofo ho ba le
Lihlahisoa tsa sebopeho le boholo

Khatello hangata e arotsoe ka mekhahlelo e meraro?

1) Boima ba li-briquette bo eketseha ka potlako ka ho eketseha ha khatello; li-pores li fokotseha haholo.

2)
Boima ba compact bo eketseha butle, hobane li-pores li kene
1
Tlosa haholo nakong ea sethala, 'me u tsoele pele ho hatella ho etsa hore likaroloana li kopane ka mokhoa o tsitsitseng
Holofetse.

3)
Keketseho ea khatello e ka fihla moeling oa lihlahisoa le moeli oa matla oa thepa ea phofo, 'me likaroloana tsa phofo li tla hlahisa polasetiki tlas'a khatello ena.
Ho senyeha ha thobalano kapa ho robeha ha brittle. Ka lebaka la brittle fracture ea likaroloana, likhechana li thehoa ho tlatsa li-pores, 'me boima ba li-briquette bo eketseha.

Khopolo ea ho sila:

Mokhoa oa ho qetela oa ho tlosa lera le tšesaane haholo ho tloha sebakeng sa mosebetsi ka lisebelisoa tsa abrasive le li-abrasives (ho sila
Ho poma
:
Sesebelisoa sa ho sila se potoloha ka lebelo le holimo la mola ho sebetsana le bokaholimo ba mosebetsi. Ho sila ho kenyeletsa; Qetello ea ho sila sefahleho, ho sila ka peripheral, ho sila ka sebōpeho se khethehileng, le setsi sa mechine.
Ho sila ke lebitso feela la ts'ebetso, 'me phallo ea ts'ebetso ha e felle feela ho sila.
Tlhaloso ea passivation (ho pota-pota): Liphekolo tse ling li etsoa ka lehlakoreng le leng la lehare ho eketsa matla a ho itšeha le tšebeliso ea sesebelisoa.
Sebelisa bophelo.
Sepheo le mosebetsi oa ts'ebetso ea passivation;

1 Ntlafatsa matla a ho itšeha, eketsa bophelo ba tšebeletso ea sesebelisoa le botsitso nakong ea ho itšeha;
2 Felisa likheo le mapetsong a microscopic;

3 Etsa hore moeli oa ho itšeha o be boreleli le ho fokotsa li-burrs;

4 Ntlafatsa kopo ea ho roala;

Khopolo ea ho roala: ka carbide e entsoeng ka samente kapa tšepe ea lebelo le phahameng e nang le matla a betere le ho tiea
(HSS)
Ka holim'a substrate, mokhoa oa ho beha mouoane o sebelisoa
Mokhoa oa ho roala lesela le tšesaane la tšepe ea refractory kapa motsoako o se nang tšepe o nang le khanyetso e ntle ea ho apara
Mosebetsi: Lisebelisoa tse koahetsoeng li na le boima bo phahameng ba holim'a metsi, ho hanyetsa ho apara hantle, thepa ea lik'hemik'hale e tsitsitseng, ho hanyetsa mocheso le ho hanyetsa oxidation, le coefficient of friction.
Litšobotsi tsa boholo bo nyane le conductivity e tlase ea mocheso li ka eketsa bophelo ba lisebelisoa ha li bapisoa le lisebelisoa tse sa koahetsoeng nakong ea ho itšeha
3~5
Ho feta habeli, eketsa lebelo la ho itšeha
20%~70%
Ho ntlafatsa ho nepahala ha mochini
0.5~1
Boemo, ho fokotsa litšenyehelo tsa tšebeliso ea lisebelisoa
20%~50%
.

Ho na le mekhoa e 'meli ea ho roala e atisang ho sebelisoa tlhahisong hona joale:
Phaello ea Mouoane 'meleng (PVD)
Mokhoa le mokhoa oa ho beha mouoane oa lik'hemik'hale (CVD).


Nako ea poso: Jul-28-2021