Matanho mana ekutanga eTungsten Carbide Sintering process

Tungsten carbide, inozivikanwawo secemented carbide, ine hunhu hwekuomarara kwepamusoro, kusimba kwepamusoro, kumira kwakanaka kwekupfeka uye kuomarara, kupikisa kupisa kwakanyanya, uye kusagadzikana kwekuora. Uye inowanzo shandiswa kugadzira maturusi ekuchera, maturusi emugodhi, maturusi ekucheka, maturusi asingapfeki, simbi inofa, mabearings chaiwo, nozzles, nezvimwe.

Sintering ndiyo nzira huru yekugadzira tungsten carbide zvigadzirwa. Pane matanho mana ekutanga eiyo tungsten carbide sintering process.

1. Pre-sintering stage (Kubviswa kweforming agent uye pre-sintering stage)

Kubviswa kwemugadziri wekugadzira: Nekuwedzera kwekushisa kwekutanga kwe sintering, iyo inoumba mumiriri inoora zvishoma nezvishoma kana kunyunguduka, nekudaro ichibvisa kubva kune sintered base. Panguva imwecheteyo, mugadziri wekugadzira achawedzera kabhoni kune iyo sintered base zvakanyanya kana zvishoma, uye huwandu hwekuwedzera kabhoni huchasiyana nerudzi uye huwandu hwemugadziri wekugadzira uye sintering process.

Maokisi ari pamusoro pehupfu anoderedzwa: pakupisa kwekupisa, hydrogen inogona kuderedza maokisi e cobalt uye tungsten. Kana iyo yekugadzira iyo yakabviswa muvacuum uye yakanyungudutswa, iyo carbon-oxygen reaction haizove yakasimba zvakanyanya. Sezvo kushushikana kwekubatana pakati pehupfu zvidimbu zvishoma nezvishoma kubviswa, iyo yekubatanidza simbi hupfu inotanga kupora uye kudzoreredza, iyo nzvimbo inotanga kupararira, uye iyo compact simba ichawedzera zvinoenderana.

Panguva ino, tembiricha iri pasi pe800 ℃

2. Solid-phase sintering stage (800℃——eutectic tembiricha)

800 ~ 1350C ° tungsten carbide hupfu zviyo saizi inokura uye inosanganiswa necobalt hupfu kuti ive eutectic.

Pakupisa kusati kwaonekwa kwechikamu chemvura, iyo yakasimba-chikamu chekuita uye kupararira inowedzerwa, kuyerera kwepurasitiki kunowedzerwa, uye muviri wakasvibiswa unoderera zvakanyanya.

3. Liquid phase sintering stage (eutectic tembiricha - sintering tembiricha)

Pa1400 ~ 1480C ° iyo binder poda inonyungudika kuita mvura. Kana iyo chikamu chemvura chikaonekwa musintered base, iyo shrinkage inopedzwa nekukurumidza, ichiteverwa necrystallographic shanduko kuumba iyo yekutanga chimiro uye chimiro cheiyo alloy.

4. Kutonhora nhanho ( Sintering tembiricha - kamuri tembiricha)

Panguva ino, chimiro uye chikamu chekuumbwa kwe tungsten carbide zvachinja nemamiriro akasiyana ekutonhora. Iyi ficha inogona kushandiswa kupisa-trench tungsten carbide kuti ivandudze iyo yemuviri uye yemagetsi zvimiro.

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.