Hauv kev tsim khoom, qhov loj me thiab qhov tseeb ntawm cov khoom siv hmoov metallurgy yog siab heev.Yog li ntawd, kev tswj qhov ceev thiab qhov hloov pauv ntawm cov compacts thaum lub sij hawm sintering yog ib qho teeb meem tseem ceeb heev.Cov yam ntxwv uas cuam tshuam rau qhov ceev thiab qhov hloov pauv ntawm sintered qhov chaw yog:

1. Lub shrinkage thiab tshem tawm ntawm pores: Sintering yuav ua rau shrinkage thiab tshem tawm ntawm pores, uas yog, txo qhov ntim ntawm lub cev sintered.

2. Cov pa roj encapsulated: Thaum lub sij hawm xovxwm txheej txheem, ntau qhov chaw kaw qhov pores yuav raug tsim nyob rau hauv lub compact, thiab thaum lub ntim ntawm lub compact yog rhuab, huab cua nyob rau hauv cov cais pores yuav nthuav.

3. Cov tshuaj tiv thaiv tshuaj: Qee cov tshuaj nyob rau hauv lub compaction thiab sintering cua react nrog ib tug npaum li cas ntawm cov pa nyob rau hauv lub compaction raw cov ntaub ntawv los tsim cov roj los yog volatilize los yog nyob twj ywm nyob rau hauv lub compaction, ua rau lub compaction yuav shrinkage los yog nthuav.

4. Alloying: Alloying ntawm ob los yog ntau tshaj cov hmoov hmoov.Thaum ib lub caij yaj nyob rau hauv lwm qhov los tsim ib qho kev daws teeb meem, cov lattice yooj yim yuav nthuav tawm lossis cog lus.

5. Lubricant: Thaum cov hmoov hlau yog tov nrog ib tug npaum li cas ntawm lubricant thiab nias rau hauv ib tug compact, nyob rau hauv ib tug tej yam kub, lub mix lubricant yuav kub hnyiab tau, thiab cov compact yuav shrink, tab sis yog hais tias nws decomposes, cov gaseous tshuaj tsis tau. ncav cuag qhov chaw ntawm lub compact..sintered lub cev, uas yuav ua rau lub compact nthuav.

6. Nias kev taw qhia: Thaum lub sij hawm sintering txheej txheem, qhov luaj li cas ntawm lub compact hloov perpendicularly los yog parallel mus rau lub pressing kev taw qhia.Nyob rau hauv dav dav, lub ntsug (radial) dimension hloov pauv loj dua.Qhov kev hloov pauv qhov loj me nyob rau hauv qhov sib npaug (axial direction) yog me me.