Maitiro eSintering Tungsten Carbide

Sezvatinoziva tese, tungsten carbide ndechimwe chezvinhu zvakaomarara zvinoshandiswa muindasitiri yemazuva ano. Kugadzira tungsten carbide kugadzirwa, inofanirwa kusangana nemhando dzakasiyana dzemaindasitiri, sekusanganisa hupfu, kugaya nyoro, kuomesa, kudzvanya, sinter, uye cheki chemhando. Munguva yekupisa, huwandu hwesimende carbide huchaderera nehafu. Ichi chinyorwa ndechekuona zvakaitika kune tungsten carbide panguva yekupisa.

Munguva yekupisa, pane matanho mana ayo tungsten carbide inofanira kusangana. Vari:

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

2. Solid-phase sintering stage;

3. Liquid-phase sintering stage;

4. Kutonhora danho.

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

Muchiitiko ichi, tembiricha inofanira kuwedzerwa zvishoma nezvishoma, uye nhanho iyi inoitika pasi pe1800 ℃. Sezvo tembiricha inowedzera, hunyoro, gasi, uye yakasara inonyungudutsa mune yakatsikirirwa tungsten carbide inobuda zvishoma nezvishoma. Iyo yekuumba mumiririri inozowedzera iyo kabhoni yemukati ye sintering simende carbide. Mune sintering dzakasiyana, kuwedzera kwecarbide zvemukati kwakasiyana. Kushungurudzika kwekubatana pakati pehupfu hupfu hunobviswawo zvishoma nezvishoma panguva yekuwedzera kwekushisa.

2. Solid-phase sintering stage

Sezvo tembiricha iri kuwedzera zvishoma nezvishoma, sintering inoenderera. Iyi nhanho inoitika pakati pe1800 ℃ uye tembiricha ye eutectic. Iyo inonzi eutectic tembiricha inoreva tembiricha yakadzikira iyo inogona kuvepo mumhepo iyi. Danho iri richaenderera mberi richibva padanho rekupedzisira. Kuyerera kwepurasitiki kunowedzera uye muviri wakasvibiswa unoderera zvakanyanya. Panguva ino, huwandu hwe tungsten carbide hunodzikira zviri pachena.

3. Liquid phase sintering stage

Panguva ino, tembiricha inokwira kusvika yasvika pakupisa kwakanyanya mukupisa, tembiricha yekupisa. Kana chikamu chemvura chikaonekwa pane tungsten carbide, shrinkage inopera nekukurumidza. Nekuda kwekunetsana kwepamusoro kwechikamu chemvura, zvimedu zvehupfu zvinoswedera kune mumwe nemumwe, uye pores muzvikamu zvinozadzwa zvishoma nezvishoma nechikamu chemvura.

4. Kutonhora danho

Mushure mekupisa, iyo simende carbide inogona kubviswa kubva muchoto chekupisa uye kutonhora kusvika kukamuri tembiricha. Mamwe mafekitari achashandisa kupisa kwemarara muchoto chekupisa kuitira kushandiswa kutsva kwekupisa. Panguva ino, sezvo kutonhora kunodonha, iyo yekupedzisira microstructure yealloy inoumbwa.

Sintering inzira yakaoma kwazvo, uye zzbetter inogona kukupa yemhando yepamusoro tungsten carbide. 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.