Mfundo ya MIM compaction-A

1. Tanthauzo la kupanga

Limbikitsani ufa kukhala zobiriwira zobiriwira ndi mawonekedwe, kukula, porosity ndi mphamvu, ndondomekoyi ndi MIM kupanga.

2. Kufunika kopanga

1) Ndi njira yoyambira zitsulo zopangira ufa zomwe kufunikira kwake kuli kwachiwiri kokha ku sintering.
2) Ndiloletsa kwambiri ndipo limatsimikizira njira yonse yopangira zitsulo za ufa kuposa njira zina.
a) Kaya njira yopangirayo ndi yololera kapena ayi, imatsimikizira mwachindunji ngati ingayende bwino.
b) Kukhudza njira zotsatila (kuphatikiza njira zothandizira) ndi mtundu wa chinthu chomaliza.
c) Kukhudza zopangira zokha, zokolola ndi mtengo wopangira.

Kupaka compressndi katundu zitsulo ufa kapena ufa osakaniza mu zitsulo atolankhani nkhungu (chikombole chachikazi), akanikizire ufa kupyolera kufa nkhonya, ndipo pambuyo kupsyinjika anamasuka, chogwirana amamasulidwa ku nkhungu wamkazi kumaliza kupanga ndondomeko.

Ntchito zazikulu za compression akamaumba ndi:

1. Pangani ufa mu mawonekedwe ofunikira;
2. Perekani chophatikizika ndi miyeso yolondola ya geometric;
3. Perekani porosity chofunika ndi pore chitsanzo kwa yaying'ono;
4. Perekani zophatikizika mphamvu zoyenera kuti zizigwira mosavuta.

Zochitika zomwe zimachitika panthawi ya ufa:

1. Pambuyo pa kukanikiza, porosity ya thupi la ufa imachepetsedwa, ndipo kuchulukana kwachibale kwa compact kumakhala kwakukulu kwambiri kuposa thupi la ufa.
Kuphatikizika kumachepetsa kutalika kwa ufa, nthawi zambiri kuphatikizika kumapitilira 50%

2. Kuthamanga kwa axial (kuthamanga kwabwino) kumagwiritsidwa ntchito ku thupi la ufa.Thupi la ufa limakhala ngati madzi kumlingo wakutiwakuti.Mphamvu ikagwiritsidwa ntchito pakhoma la nkhungu lachikazi, mphamvu yofananira nawo imapangidwa.

3. Pamene ufa umapangidwira, kuchuluka kwa compact kumawonjezeka, ndipo mphamvu ya compact imawonjezekanso.

4. Chifukwa cha kukangana pakati pa tinthu tating'onoting'ono ta ufa, kupatsirana kwapakati kumakhala kosagwirizana, ndipo kachulukidwe ka magawo osiyanasiyana mu compact ndi wosiyana.Kuchulukana kosagwirizana kwa chobiriwira chobiriwira kumakhudza kwambiri magwiridwe antchito amtundu wobiriwira komanso ngakhale mankhwalawo.

5. Pambuyo pa kupanikizika kumatsitsimutsidwa ndikuwonongeka, kukula kwa chophatikiza chobiriwira chidzakulitsa-kutulutsa zotanuka pambuyo pake.Elastic aftereffect ndi chimodzi mwazifukwa zazikulu zomwe zimapangidwira komanso kusweka kwa compact.