Powder metallurgy inzira tekinoroji inogadzira simbi kana kushandisa simbi hupfu sehupfu, mushure mekugadzira nekupisa, kugadzira zvinhu zvesimbi, macomposites nemhando dzakasiyana dzezvigadzirwa.

Powder metallurgy tekinoroji maitiro
1. Kugadzirira kwehupfu uye kuumbwa kwekugadzirisa
Inowanzo shandiswa mechanical pulverization, atomization, muviri uye kemikari nzira kugadzirira hupfu.Iyo yakagadzirwa poda inosefa uye yakasanganiswa, zvinhu zvacho zvakasanganiswa uye mapurasitiki akakodzera anowedzerwa, obva amanikidzwa kuita chimiro.Maatomu ari pakati pezvimedu zvehupfu akasimba-phase diffusion uye mechanical occlusion, kuitira kuti zvikamu zvinosanganiswa kuita yese neimwe simba..Iyo yakakura kudzvinyirira, iyo yakakura density yechikamu uye inowirirana kuwedzera kwesimba.Dzimwe nguva kuitira kudzikisa kudzvanywa uye kuwedzera kuwanda kwezvikamu, nzira yekupisa isostatic kudzvanya inogona kushandiswa zvakare.

2. Sintering
Chikamu chakatsikirirwa chinoiswa muchoto chakavharwa nemhepo inodzikisira yekunyura, uye tembiricha yekupisa inenge 2/3 kusvika 3/4 nguva yekunyungudika kwesimbi yepasi.Nekuda kwekupararira kwemhando dzakasiyana dzeatomu pakupisa kwepamusoro, kudzikiswa kwemaokisi pasi pehupfu uye kudzokororwa kwehupfu hwakaremara, zvidimbu zvehupfu zvinosanganiswa pamwe chete, izvo zvinovandudza kusimba kwezvigadzirwa zvehupfu uye kuwana chimiro chakafanana neicho che general alloys.Pachine mamwe maburi madiki muzvikamu zvakasvibiswa, izvo zvinhu zvine porous.
Chetatu, post-processing
Mumamiriro ezvinhu akajairwa, zvikamu zvakasimwa zvinogona kuita zvinodiwa uye zvinogona kushandiswa zvakananga.Asi dzimwe nguva, inodiwa post-processing inodiwa.Semuenzaniso, kunyatso kudzvanya kurapwa kunogona kuvandudza density uye dimensional kurongeka kwezvikamu;kudzima uye pamusoro pekudzima marapirwo pane iron-based poda metallurgy zvikamu zvinogona kuvandudza mashandiro avo emuchina;kunyudzwa kwemafuta kana kunyudzwa kuitira kuzora kana kusaora.Liquid lubricant;iyo infiltration treatment yekupinza yakaderera yakanyungudika simbi mumapores echikamu inogona kuvandudza simba, kuoma, plasticity kana kukanganisa kuoma kwechikamu.
Powder metallurgy zvikamu zvinoshandiswa zvakanyanya mumaindasitiri akasiyana-siyana: indasitiri yemotokari, synchronizer hubs, synchronizer mhete, pulleys, synchronizers;mabhengi akasiyana-siyana, poda metallurgy magiya, simbi zvimiro zvikamu, nezvimwe zvinoshandiswa zvakanyanya mukugadzira michina.