Pores mushure meSintering

Cemented carbide imhando yekomboni ine yakaenzana tungsten uye kabhoni, ine kuoma pedyo nedhaimani. Cemented carbide ine kuoma kwakanyanya uye kuomarara kwakanyanya panguva imwe chete. Cemented carbide inogadzirwa nehupfu simbi, uye sintering ndiyo inonyanya kukosha maitiro panguva yekugadzira simende chigadzirwa che carbide. Zviri nyore kukonzera pores mushure me tungsten carbide sintering kana isina kunyatsodzorwa. Muchikamu chino, iwe uchawana rumwe ruzivo nezve pores mushure me tungsten carbide sintering.

Iyo tungsten carbide poda uye binder poda inosanganiswa mune imwe chikamu. Ipapo hupfu hwakasanganiswa hunogadzirwa kuita girini compact mushure mekunyorova mumushini weguyo rebhora, kupfapfaidza kuomesa, uye kubatanidza. Iwo egirinhi tungsten carbide compacts akaiswa muHIP sintering choto.

Iyo huru sintering process inogona kukamurwa kuita nhanho ina. Ndivo kubviswa kwemugadziri wekuumba uye pre-sintering nhanho, solid-phase sintering stage, liquid-phase sintering stage, uye inotonhorera sintering stage. Munguva yekupisa, tembiricha iri kuwedzera zvishoma nezvishoma. Mumafekitori, kune nzira mbiri dzakajairika dzekuita sintering. Imwe ndeye hydrogen sintering, umo kuumbwa kwezvikamu kunodzorwa nechikamu chekuita kinetics muhydrogen uye mhepo yekumanikidza. Uye imwe yacho ndeye vacuum sintering, iyo iri kushandisa vacuum nharaunda kana nharaunda yakaderedzwa. Iyo gasi dzvinyiriro inodzora cemented carbide kuumbwa nekudzikisa pasi reaction kinetics.

Chete kana vashandi vachidzora nhanho imwe neimwe nekungwarira, iyo tungsten carbide yekupedzisira zvigadzirwa inogona kuwana inodiwa microstructure uye makemikari kuumbwa. Mamwe ma pores anogona kunge aripo mushure mekudonha. Chimwe chezvikonzero zvakakosha ndezve tembiricha yekupisa. Kana tembiricha ichikwira nekukurumidza, kana tembiricha yekupisa yakanyanya, kukura kwezviyo uye kufamba kunenge kusina kuenzana, zvichikonzera chizvarwa chepores. Chimwe chikonzero chakakosha ndechekugadzira mumiriri. Binder inofanira kubviswa isati yapisa. Zvikasadaro, iyo yekugadzira mumiriri inoshanduka panguva yekuwedzera sintering tembiricha, izvo zvinozoguma nemapores.

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.