Sintering Nzira dzeUpfu Metallurgy (upfu metallurgy sintering)
Powder metallurgy sintering nzira dzinonyanya kusanganisira dzinotevera:
Upfu metallurgyinoda nhevedzano yematanho ekuita senge kugadzirwa kwehupfu, kudzvanya, sintering, uye post-kugadzirisa. Pakati pavo, poda metallurgy sintering inzira yekupisa yekupisa iyo inowedzera kusanganisa compacts kana yakasununguka miviri yehupfu kuvandudza simba uye zvimwe zvinhu. Nekudaro, nekuda kwemusiyano, hupfu metallurgy sintering nzira dzakakamurwawo mumhando dzakawanda.
1. Liquid phase sintering
Kana pane zvikamu zviviri kana kupfuura muupfu compact, sintering inogona kuitwa pamusoro pekunyunguduka kwechimwe chikamu, saka chikamu chiduku chemvura chinowanikwa muupfu compact panguva yekupisa.
2. Pressure sintering
Munguva yekupisa, kudzvanywa kunoshandiswa kumuviri wehupfu kusimudzira maitiro ayo e densification. Pressuresinteringdzimwe nguva inofanana nekutsikirira kupisa, inova nzira inosanganisa kuumbwa nekunyungudika kwehupfu kuti utore zvigadzirwa.
3. Activation sintering
Mukuita sintering, mamwe matanho emuviri kana emakemikari anotorwa kuti aderedze zvakanyanya tembiricha yekupisa uye kupfupisa nguva yekupisa, nepo kuita kwemuviri wakanyoroveswa kunovandudzwa nekuvandudzwa.
4. EDM sintering
Kana muviri wehupfu wakaumbwa uye wakatsikirirwa, yakananga ikozvino uye pulse magetsi inoshandiswa kugadzira arc pakati pehupfu hwehupfu hwekuita sintering; panguva yekupisa, kudzvinyirira kunoshandiswa zvishoma nezvishoma kune workpiece, uye maitiro maviri ekugadzira uye sintering anosanganiswa.
Zviri mukati zvakaunzwa pamusoro ndiwo mana akajairika poda metallurgy sintering nzira. Kuburikidza nenzira idzi dzekupisa, iyo poda metallurgy sintering process inogona kupedzwa zvinobudirira. Nekuti, mukuita kwehupfu metallurgy sintering, zvidimbu zvehupfu zvinopinda mumuviri uye makemikari maitiro sekuyerera, kupararira, kunyunguduka, uye recrystallization, kuitira kuti muviri wehupfu uwedzere kusimba uye mamwe kana ese ma pores abviswa.
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Nguva yekutumira: Kubvumbi-25-2022