Classification leStudy onLisebelisoa tsa ho Seha Carbide

Karolo ea pele

Sesebelisoa ke sesebelisoa sa bohlokoahali sa ho itšeha, ebang ke sesebelisoa se tloaelehileng sa mochini, kapa sesebelisoa sa mochini oa taolo ea linomoro (NC), setsi sa machining (MC) le sistimi e bonolo ea tlhahiso (FMC), e tlameha ho itšetleha ka sesebelisoa ho phethela ho itšeha. tshebetso. Ntlafatso ea lisebelisoa e na le phello e tobileng ho ntlafatsa tlhahiso le boleng ba ts'ebetso. Lisebelisoa, sebopeho le geometry ke lintlha tse tharo tse khethollang ts'ebetso ea ho itšeha ea sesebelisoa, moo ts'ebetso ea lisebelisoa tsa lisebelisoa e phethang karolo ea bohlokoa.

E le karolo ea bohlokoa ea lisebelisoa tsa lisebelisoa, carbide e entsoeng ka samente e bapala karolo e ke keng ea nkeloa sebaka ts'ebetsong ea sejoale-joale ea ho itšeha. Cemented carbide ke thata e phahameng, refractory metal carbide (WC, TiC, joalo-joalo) ea taelo ea micron ea phofo ea boholo, e sintered ka Co, Mo, Ni le lihlahisoa tse ling tse kopanyang phofo ea metallurgy, eo mocheso o phahameng oa carbide o fetang o phahameng. -Speed ​​steel, mocheso o lumelletsoeng oa ho itšeha ho fihla ho 800 ~ 1000 ℃, boima bo tloaelehileng ba mocheso oa HRC89 ~ 93, 760 ℃ boima ba HRC77 ~ 85, ho itšeha ka lebelo ho fihla ho 100 ~ 300m / min, ho feta tšepe e lebelo le holimo, bophelo ke makhetlo a 'maloa ho makhetlo a mangata a tšepe ea lebelo le phahameng, empa matla le ho tiea ke 1/30 ~ 1/8 feela ea tšepe ea lebelo le phahameng, bokhoni bo fokolang ba ho mamella ts'oenyeho le tšusumetso. Hona joale e se e le e 'ngoe ea lisebelisoa tse ka sehloohong tsa lisebelisoa.

Mokhatlo oa Machaba oa Boemo (ISO) o arola carbide bakeng sa ho seha lisebelisoa ka mekhahlelo e tšeletseng:

1. Mofuta oa P

E entsoe ka WC, Co le 5% ~ 30% TiC, e tsejoang hape e le tungsten titanium cobalt carbide, grade YT5, YT14, YT15, YT30, eo litaba tsa TiC li leng 5%, 14%, 15%, 30%, tse tsamaellanang le tsona. Co content ke 10%, 8%, 6%, 4%, hardness HRA91.5 ~ 92.5. Tmatla a hae a ho kobeha ke 900 ~ 1400MPa. Likahare tsa TiC li ile tsa eketseha, litaba tsa Co li fokotsehile, ho thatafala le ho hanyetsa ho roala ho ile ha eketseha, empa matla a tšusumetso a fokotsehile haholo. Mofuta ona oa alloy o na le boima bo phahameng le ho hanyetsa ho roala, ho khomarela hantle le ho hanyetsa ho hasana le ho hanyetsa oxidation. Empa matla a ho khumama, ts'ebetso ea ho sila le ho fokotseha ha mocheso oa mocheso, mocheso o tlase oa brittleness, toughness e futsanehile. E loketse lisebelisoa tsa tšepe tsa ho itšeha ka lebelo le phahameng. Ha Co content ea alloy e phahame, matla a ho kobeha a betere le ho tiea ha tšusumetso, tse loketseng ho korotla. Likahare tsa Co li fokotsehile, ho thatafala, ho hanyetsa ho apara le ho hanyetsa mocheso hoa eketseha, 'me ho loketse ho qeta. Kamano e teng lipakeng tsa ntho ea Ti ka alloy le karolo ea Ti homosebetsi oa matsohoe tla hlahisa ntho e tebileng ea ho khomarela sesebelisoa, e leng ho tla mpefatsa ho roala ha sesebelisoa tabeng ea ho itšeha mocheso o phahameng le ntho e kholo ea khohlano, 'me ha e tšoanelehe bakeng sa ho sebetsana le tšepe e sa hloekang le motsoako oa titanium.

2. Mofuta oa K

E entsoe ka WC le Co, e tsejoang hape e le tungsten cobalt tungsten carbide, e sebelisoang hangata ke limaraka tsa YG6, YG8, YG3X, YG6X, e nang le Co ea 6%, 8%, 3%, 6%. Hardness HRA89 ~ 91,5, kobang matla 1100 ~ 1500GPa. Sebopeho se arotsoe ka lijo-thollo tse mahoashe, lijo-thollo tse mahareng le lijo-thollo tse ntle. Ka kakaretso (joalo ka YG6, YG8) bakeng sa sebopeho sa lijo-thollo tse mahareng, carbide e ntle ea lijo-thollo (joalo ka YG3X, YG6X) e nang le chelete e lekanang ea Co ho feta boima ba lijo-thollo tse mahareng,eonaho itoanela ho phahame hanyenyane, matla a kobang leboimanabatlase hanyane. Mofuta ona oa toughness ea alloy, ho sila, conductivity ea mocheso e ntle, e loketse ho sebetsana le lisebelisoa tse brittle..

3. Mofuta oa M

Motheong oa WC, TiC le Co, TaC (kapa NbC) e kenyellelitsoe sebopeho, ho eketsa TaC (NbC) ho YT ho ka ntlafatsa matla a eona a ho khumama, matla a mokhathala, matla a tšusumetso, boima ba mocheso o phahameng, matla le ho hanyetsa oxidation, ho roala. khanyetso joalo-joalo. Limaraka tse sebelisoang hangata YW1 le YW2. E ka sebelisoa ho sebetsana le tšepe e entsoeng ka tšepe, litšepe tse se nang ferrous le tšepe, empa hape e ka sebetsana le alloy e phahameng ea mocheso, tšepe e sa hloekang le tse ling tse thata.-to-lisebelisoa tsa ts'ebetso.

4. Mofuta oa H

Haholo-holo e sebelisetsoa ho seha lisebelisoa tse thata tse phahameng, tse kang tšepe e thata, tšepe ea tšepe e pholileng joalo-joalo. Cubic boron nitride PCBN e thathamisitsoe ho Sehlopha sa H.

5.Mofuta oa S

E sebelisetsoa ho seha lisebelisoa tse thibelang mocheso,li-alloys tse kholo, joalo-joalo.

6.Mofuta oa H

Se sebedisoang bakeng sa ho seha litšepe tse senang tšepe. Polycrystalline diamond PCD e kenyelelitsoe sehlopheng sa N.

Sehloohong sena, ke boletse mefuta e tšeletseng ea carbide e entsoeng ka samente ka ho arola lisebelisoa tsa ho itšeha, karolo e latelang, ho tla ba le mefuta e meng e mecha ea carbide e entsoeng ka samente ho etsa qeto, ka kopo don.’t lebala ho hlahloba halofo e latelang haeba u thahasella.

ZZBETTER e hlahisa lihlahisoa tsa TC/WC tse nang le boiphihlelo ba lilemo tse fetang 10, ikopanye le rona haeba u na le tlhoko leha e le efe mabapi le thepa ea tungsten carbide kapa lihlahisoa tse thata. Emela potso ea hau, ka sebele rea tšepahala.