Iyini impushana yensimbi?

Iqoqo lezinhlayiya zensimbi ezingaphansi kwemilimitha eyodwa libizwa ngokuthi impushana yensimbi. Lena into yokuqala eluhlaza esetshenziswa ku-powder metallurgy futhi ihlanganisa insimbi eyodwa, ingxubevange, kanye nempushana eyinhlanganisela ethile ephikisayo enezici zensimbi.

Ziyini izingxenye zensimbi eziyimpushana?

Inqubo yezingxenye zensimbi ye-Powder iwukwenza insimbi noma ukusebenzisa impushana yensimbi (noma impushana yensimbi kanye nengxube yempushana engeyona eyensimbi) njengezinto zokusetshenziswa, ngemva kokwakhiwa nokucwiliswa kwe-MIM, ukukhiqiza izinto zensimbi, izinto eziyinhlanganisela kanye nezinhlobo ezihlukahlukene zobuchwepheshe bemikhiqizo. Imboni yezingxenye zensimbi ezijwayelekile ihlanganisa amathuluzi ensimbi namatshe, i-carbide enosimende, izinto zikazibuthe. Ngomqondo omncane, Imboni yezingxenye zensimbi eyimpushana ibhekisela kuphela emikhiqizweni ye-powder metallurgy, kuhlanganisaizingxenye ze-powder metallurgy(ibalwa ngobuningi), okuzala uwoyela kanyeimikhiqizo yokubumba umjovo wensimbi.

Izingxenye zensimbi ye-powder

I-Powder Metal Parts Isici

• ukuminyana komkhiqizo kuyalawuleka, njengezinto ezinama-porous, izinto ezinhle zokuminyana;
• okusanhlamvu okuhle, i-microstructure efanayo, akukho ukuhlukaniswa kwengxenye;
• eduze nokwakhiwa, izinga lokusebenzisa impahla eluhlaza> 95%;
• ngaphansi akukho ukusika, ukusika ukucubungula kuphela 40 ~ 50%;
• ukubunjwa kwezinto ezibonakalayo kuyalawuleka, okuhambisana nokulungiswa kwezinto ezihlanganisiwe;
• ukulungiswa kwensimbi ephikisayo, izinto zobumba kanye nezinto zenuzi.

Izingxenye zensimbi ze-powder eziyisisekelo zokugeleza kwenqubo

1, ukuphefumula

I-Pulverizing inqubo yokwenza izinto ezingavuthiwe zibe yimpushana. Izindlela ezivame ukusetshenziswa zokuhlikihla yindlela yokunciphisa i-oxide kanye nendlela yomshini.

2. Ukuxuba

Ukuxuba kuyinqubo yokwenza i-billet powder ngokuxuba zonke izinhlobo ze-powder edingekayo ngesilinganiso esithile kanye nokwenza i-homogenizing. Ihlukaniswe yaba zintathu ezomile, ezicishe zibe manzi kanye nezimanzi, ngokulandelana ngezidingo ezahlukene.

3, Ukwakha

Ukwakheka kuyinqubo yokwenza okungenalutho ngesimo esithile, usayizi kanye nokuminyana ngokulayisha impahla exubene ngokulinganayo kumshini wokucindezela ngaphansi kwengcindezi enkulu. Indlela yokubumba ihlukaniswe ngokuyisisekelo ekubumbeni kwengcindezi futhi akukho ukubunjwa kwengcindezi. I-pressure molding isetshenziswa kakhulu ekubumbeni.

4, Ukucula

5. Ngemuva kokucubungula

 Ngemuva kokwelashwa kwe-sintering, ngokusho kwezidingo ezahlukene zezingxenye zensimbi ye-powder, thatha izindlela ezihlukahlukene. Okufana nokuqeda, ukucwilisa, ukukhanda imishini, ukwelashwa kokushisa kanye ne-electroplating. Ngaphezu kwalokho, eminyakeni yamuva nje, ezinye izinqubo ezintsha ezinjengokugingqika kanye nokukhanga nazo ziye zasetshenziswa ekucwiliseni izinto eziyimpushana zensimbi futhi zithole imiphumela engcono.

I-powder sinteringkuyinqubo eyinhloko kunqubo ye-powder metallurgy. Ngemuva kokwakhiwa, i-billet i-sintered ukuze kutholwe izakhiwo zokugcina ezifiselekayo zomzimba nezomshini. I-Sintering in Metallurgy ihlukaniswe yaba yiyunithi yokusika kanye ne-multi-system sintering. Ngaphezu kokushisa okujwayelekile, kukhona ukucwiliswa okuxekethile, ukucwiliswa, ukucindezela okushisayo kanye nenye inqubo ekhethekile yokucwilisa.