Ceramic Injection Molding Cold Sintering (CS)

The basic process ofCeramic jekiseni kuumbaCS tekinoroji ndeyekuwedzera diki mhinduro ine aqueous kune ceramic poda kuti inyorovese zvimedu, uye iyo pamusoro pehupfu inowora uye inonyungudika zvishoma mumhinduro, nekudaro ichigadzira chikamu chemvura pakati pe-particle-particle interface. Isa hupfu hwakanyoroveswa muforoma, kupisa mold, uye shandisa kudzvinyirira kukuru panguva imwe chete. Mushure mekuchengetedza kumanikidzwa uye kuichengeta kwenguva yakati, dense ceramic material inogona kugadzirirwa. Munguva iyi, iyo microstructure yeceramic zvinhuinoshanduka. sezvinoratidzwa nemufananidzo.

Kunyangwe paine zvakawanda zvakarongeka zvinopesvedzera zvinhu zveCS process, michina inoshandiswa neiyi tekinoroji iri nyore. , Ceramic CS midziyo inonyanya kusanganisira muchina wakajairika, mahwendefa maviri ekudziya akaiswa pamusoro nepasi pemuchina, uye nemagetsi rinodzorwa bhachi rekudziya rinogonawo kuputirwa paforoma yekudziya hupfu.

Oscillating Pressure Sintering yeCeramic Injection MoldingCIM (OPS)

Yakasiyana-siyana iripo yekumanikidza sintering matekinoroji anoshandisa static inogara ichimanikidza. Iko kuiswa kweiyo static pressure panguva yesintering processinobatsira kubvisa pores uye kunatsiridza kuwanda kwemakeramiki, asi zvakaoma kuti ionize zvachose uye nekubatana kubatanidza yakakosha ceramics. Kusabatanidzwa kwepores mukati mezvinyorwa zvichine zvimwe zvisingakwanisi pakugadzirira kunodiwa kwe-ultra-high simba, kuoma kwepamusoro, kuoma kwepamusoro uye zvinhu zvakavimbika zvakanyanya.
Zvikonzero zvikuru zvezvipimo zveHP static pressure sintering zvinoratidzwa mune zvinotevera 3 zvinhu:

• ① Isati yatanga kunyura uye padanho rekutanga rekunyungudika, iyo inogara ichimanikidza haigone kuzadzisa chidimbu chekugadzirisa hupfu muhupfu kuti uwane yakakwira density;
• ② Pakati uye gare gare nhanho dzekunyungudika, kuyerera kwepurasitiki uye kubviswa kweagglomerates kuchiri kushoma, uye zvakaoma kuwana yakakwana yunifomu densification yezvinhu;
• ③ Muchikamu chekupedzisira chekunyungudika, zvakaoma kubvisa zvachose mapores akasara nekumanikidzwa nguva dzose.

Kuti izvi zviitike, boka remunyori rekutsvagisa rakapa zano idzva rekugadzira yekuunza ine simba oscillating kudzvanya kutsiva yaivepo inogara static kudzvanywa muupfu sintering process, uye akatungamira mukugadzira tekinoroji yeOPS nemidziyo munyika. Pasi pechiito chekumanikidza kwakakura nguva dzose, kumanikidzwa kweoscillating ine frequency inogadziriswa uye amplitude inokwidziridzwa kushandura "simba rakafa" rinoshandiswa mukuridza kwechinyakare kuita "simba". Iyo schematic dhizaini yeiyo oscillating pressure coupling mudziyo uye musimboti inoratidzwa mumufananidzo.

Iyo tekinoroji nyowani yeOPS ine yakasarudzika mabhenefiti ekugadzirwa kwezvinhu zvine padyo ne theoretical density (yakakura kupfuura 99.9% yetioretical density), yakaderera hurema, uye yakanyanya-yakanaka zviyo microstructure. uye kuvimbika kunopa nzira itsva.