Chii chinonzi metal powder?

Muunganidzwa wezvidimbu zvesimbi zvisingasviki mirimita imwe zvinonzi hupfu hwesimbi. Iyi ndiyo yekutanga simbi inoshandiswa muupfu simbi uye inosanganisira imwe simbi, alloy, uye imwe refractory composite poda ine simbi hunhu.

Chii chinonzi poda metal parts?

Powder simbi zvikamu process ndiko kugadzira simbi kana kushandisa simbi hupfu (kana simbi hupfu uye isiri-simbi hupfu musanganiswa) sezvo mbishi zvinhu, pashure kuumba uye MIM sintering, kugadzira simbi zvinhu, composite zvinhu uye akasiyana marudzi zvigadzirwa tekinoroji. Generalized poda simbi zvikamu indasitiri inosanganisira simbi nematombo maturusi, simende carbide, magineti zvinhu. Mupfungwa nhete, Iyo hupfu simbi zvikamu indasitiri inongoreva nezveupfu metallurgy zvigadzirwa, zvinosanganisiraupfu metallurgy zvikamu(kuverengera ruzhinji), kutakura mafuta uyesimbi jekiseni kuumba zvigadzirwa.

Upfu simbi zvikamu

Upfu Metal Zvikamu Hunhu

• kuwanda kwechigadzirwa kunodzoreka, senge porous zvinhu, yakanaka density zvinhu;
• zviyo zvakanaka, yunifomu microstructure, hapana kupatsanurwa kwechikamu;
• pedyo nekugadzira, chiyero chekushandiswa kwezvinhu zvakasvibiswa> 95%;
• zvishoma hapana kucheka, kucheka kugadzirisa chete 40 ~ 50%;
• kuumbwa kwezvinhu zvinogadziriswa, izvo zvinobatsira pakugadzirwa kwezvinhu zvinosanganiswa;
• kugadzirira refractory simbi, ceramic zvinhu uye nyukireya zvinhu.

Upfu simbi zvikamu basic process flow

1, Kunyudza

Pulverizing inzira yekugadzira mbishi kuita hupfu. Iyo inowanzo shandiswa pulverizing nzira iokisidhi yekudzikisa nzira uye mechanic nzira.

2. Kusanganisa

Kusanganisa ndiyo nzira yekugadzira billet poda nekusanganisa marudzi ese ehupfu hunodiwa mune imwe chikamu uye homogenizing iyo. Yakakamurwa kuita yakaoma, semi-yakaoma uye yakanyorova matatu, zvichiteerana kune zvakasiyana zvinodiwa.

3, Kugadzira

Kugadzira inzira yekugadzira iyo isina chinhu neimwe chimiro, saizi uye density nekurodha zvinhu zvakasanganiswa zvakasanganiswa mudhindiro kufa pasi pekumanikidzwa kukuru. Molding nzira yakakamurwa kuita yekumanikidza kuumbwa uye hapana kuumbwa kwekumanikidza. Pressure molding ndiyo inonyanya kushandiswa mukuumba.

4, Sintering

5. Post-processing

 Pashure sintering kurapwa, maererano akasiyana upfu simbi zvikamu zvinodiwa, tora nzira dzakasiyana-siyana. Zvakadai sekupedzisa, kunyura, kugadzira, kupisa kurapwa uye electroplating. Uye zvakare, mumakore achangopfuura, mamwe maitiro matsva akadai sekukungurusa uye kuforoma akashandiswawo pakunyungudika kwehupfu simbi zvinhu uye akawana mhedzisiro iri nani.

Powder sinteringinzira yakakosha muupfu metallurgy process. Mushure mekugadzira, iyo billet inocheneswa kuti iwane inodiwa yekupedzisira yemuviri uye michina zvivakwa. Sintering in metallurgy yakakamurwa kuita unit sintering uye multi-system sintering. Kuwedzera kune zvakajairika sintering, kune yakasununguka sintering, kunyudzwa, kupisa kupisa uye imwe yakakosha sintering process.