Nzira mbiri dzeSintering

Tungsten carbide zvigadzirwa zvinoumbwa netungsten carbide uye mamwe masimbi eboka zvinhu senge cobalt sebhainda. Zvigadzirwa zveTungsten carbide zvinogona kushandiswa zvakanyanya mukucheka simbi, mafuta ekudhira mabhiti, uye simbi inogadzira kufa.

Tungsten carbide sintering inofanirwa kudzorwa nekuchenjerera kuti iwane yakakodzera microstructure uye makemikari kuumbwa. Mune akawanda maapplication, tungsten carbide inogadzirwa nehupfu metallurgy, iyo inosanganisira sintering. Tungsten carbide zvigadzirwa zvinowanzomira nekupfeka uye kusagadzikana munzvimbo dzakaoma. Mune akawanda ekucheka simbi maapplication, tungsten carbide cutters ine kupfeka inodarika 0.2-0.4 mm inotongwa kuti yakaraswa. Naizvozvo, zvimiro zve tungsten carbide zvakakosha.

Pane nzira mbiri huru dze sinter tungsten carbide zvigadzirwa. Imwe ndeye hydrogen sintering, uye imwe yacho vacuum sintering. Hydrogen sintering iri kutonga kuumbwa kwezvikamu nechikamu chekuita kinetics muhydrogen uye kumanikidza; vacuum sintering iri kudzora iyo inoumbwa ye tungsten carbide nekudzikamisa maitiro kinetics pasi pevacuum kana yakaderera air pressure nharaunda.

Vacuum sintering ine huwandu hwakakura hwemaindasitiri ekushandisa. Dzimwe nguva, vashandi vanogona kushandisa inopisa isostatic kudzvanya, iyo yakakoshawo pakugadzira tungsten carbide zvigadzirwa.

Munguva yehydrogen sintering, hydrogen imhepo inoderedza. Hydrogen inogona kuita nemadziro evira remoto kana graphite uye kuchinja zvimwe zvikamu.

Kuenzaniswa nehydrogen sintering, vacuum sintering ine zvinotevera zvakanakira.

Chekutanga pane zvese, vacuum sintering inogona kudzora kuumbwa kwechigadzirwa zvakanyanya. Pasi pekumanikidzwa kwe1.3 ~ 133pa, chiyero chekuchinjana kwekabhoni uye oksijeni pakati pemhepo uye alloy yakaderera zvikuru. Chinhu chikuru chinokanganisa kuumbwa ndeyemukati weokisijeni muzvikamu zvecarbide, saka vacuum sintering ine mukana wakakura mukugadzirwa kwemaindasitiri kwe sintered tungsten carbide.

Chechipiri, panguva yevacuum sintering, inonyanya kuchinjika kudzora sintering system, kunyanya mwero wekupisa, kuzadzisa zvinodiwa zvekugadzira. Vacuum sintering ibasa rebatch, rinochinjika kupfuura hydrogen sintering.

Paunenge uchigadzira tungsten carbide zvigadzirwa, tungsten carbide inofanirwa kusangana nematanho anotevera:

1. Kubviswa kweiyo molding agent uye pre-burning stage;

Muchiitiko ichi, tembiricha inofanira kuwedzerwa zvishoma nezvishoma, uye nhanho iyi inoitika pasi pe1800 ℃.

2. Solid-phase sintering stage

Sezvo tembiricha iri kuwedzera zvishoma nezvishoma, sintering inoenderera mberi. Iyi nhanho inoitika pakati pe1800 ℃ uye tembiricha ye eutectic.

3. Liquid phase sintering stage

Panguva ino, tembiricha inoramba ichikwira kudzamara yasvika patembiricha yepamusoro-soro mukuita sintering, tembiricha yekupisa.

4. Kutonhora danho

Iyo carbide yakasimwa, mushure mekunyura, inogona kubviswa kubva muchoto chekupisa uye kutonhora kusvika kukamuri tembiricha.

Kana iwe uchifarira tungsten carbide zvigadzirwa uye uchida rumwe ruzivo uye ruzivo, unogona KUBATA NESU nerunhare kana tsamba kuruboshwe, kana kuti TUMUMA MAIL pazasi peji.