Mukugadzira, iyo dimensional uye chimiro kurongeka kweupfu metallurgy zvigadzirwa zvakakwira zvakanyanya.Naizvozvo, kudzora density uye dimensional shanduko yemakompakiti panguva yekuridza inyaya yakakosha zvakanyanya.Zvinhu zvinokanganisa density uye dimensional shanduko yezvikamu zvakasvibiswa ndezvi:

1. Shrinkage uye kubviswa kwepores: Sintering ichaita kuti shrinkage uye kubviswa kwepores, kureva, kuderedza huwandu hwemuviri wakasvibiswa.

2. Encapsulated gasi: Panguva yekugadzira dhizaini, akawanda akavharika ega pores anogona kuumbwa mu compact, uye kana vhoriyamu ye compact ichipisa, mhepo mune idzi pores dzakasarudzika ichawedzera.

3. Chemical reaction: Mamwe machemical elements ari mu compaction and sintering atmosphere anopindirana nehumwe huwandu hweoxygen mu compaction raw material kuti ibudise gasi kana kuvhuvhuta kana kuramba iri mukubatana, zvichiita kuti iko kusungirirana kuderera kana kuwedzera.

4. Alloying: Alloying pakati maviri kana kupfuura element poda.Kana chimwe chinhu chanyunguduka mune chimwe kugadzira mhinduro yakasimba, iyo basic lattice inogona kuwedzera kana kudhonzwa.

5. Mafuta ekuzora: Kana hupfu hwesimbi hwasanganiswa nehumwe huwandu hwemafuta uye hwotsikirirwa kuita compact, pane imwe tembiricha, mafuta akasanganiswa anopiswa, uye compact inoderera, asi kana ikaora, iyo gasi haigoni. kusvika pamusoro pe compact..Sintered body, izvo zvinogona kuita kuti compact iwedzere.

6. Kutsikirira kutungamira: Munguva ye sintering process, saizi ye compact inoshanduka perpendicularly kana parallel kune yekudzvanya kutungamira.Kazhinji, vertical (radial) dimension shanduko rate yakakura.The dimensional shanduko mwero muparallel direction (axial direction) idiki.