Itekhnoloji yeSintering yesitofu seceramic yokubumba i-CIM

Isitofu seCeramic sokuBumba iCold Sintering (CS)

Inkqubo esisiseko yokubumba itekhnoloji ye-CS ye-ceramic kukongeza inani elincinci lesisombululo esinamanzi kwi-powder ceramic ukumanzisa amasuntswana, kunye nezinto ezingaphezulu zepowder zibola kwaye zinyibilike ngokuyinxenye kwisisombululo, ngaloo ndlela kuvelisa isigaba solwelo phakathi komgubo. i-particle-particle interface.Beka ipowder emanzi kwi-mold, ukutshisa i-mold, kwaye usebenzise uxinzelelo olukhulu ngexesha elifanayo.Emva kokugcina uxinzelelo kunye nokugcina ixesha elithile, i-dense ye-ceramic material ingalungiswa.Ngethuba le nkqubo, i-microstructure yezinto ze-ceramic iyaguquka.njengoko umfanekiso ubonisa.

Nangona zininzi izinto ezichaphazela inkqubo ye-CS, izixhobo ezisetyenziswa yile teknoloji zilula., Isixhobo se-ceramic CS ikakhulu sibandakanya umshicileli oqhelekileyo, iipleyiti ezimbini zokufudumeza ezifakwe phezulu nangaphantsi komatshini wokushicilela, kunye nejacket yokufudumala elawulwa ngombane nayo inokugqunywa kwi-mold yokufudumeza umgubo.

I-Oscillating Pressure Sintering yeCeramic Injection MoldingCIM (OPS)

Iitekhnoloji ezahlukeneyo ezikhoyo zoxinzelelo lwe-sintering zisebenzisa uxinzelelo olungagungqiyo.Ukuqaliswa koxinzelelo lwe-static ngexesha lenkqubo ye-sintering kunceda ukuphelisa ii-pores kunye nokuphucula ukuxinana kwee-ceramics, kodwa kunzima ukudibanisa ngokupheleleyo i-ionize kunye ne-covalently bond ii-ceramics ezikhethekileyo.Ukukhutshwa kwee-pores ngaphakathi kwezinto kusekho imida ethile yokulungiswa okufunwayo kwamandla aphezulu, ukuqina okuphezulu, ubunzima obuphezulu kunye nezinto ezinokuthembeka okuphezulu.
Ezona zizathu ziphambili zokuthintelwa kwe-HP static pressure sintering zibonakaliswe kule miba mi-3 ilandelayo:
① Ngaphambi kokuqala kwe-sintering kunye nakwinqanaba lokuqala lokucwina, uxinzelelo oluqhubekayo alukwazi ukuqonda ngokupheleleyo ukulungiswa kwe-particle ye powder kwi-mold ukufumana ukuxinana okuphezulu;
② Embindini nakwinqanaba lamva le-sintering, ukuhamba kweplastiki kunye nokupheliswa kwee-agglomerate kusenomda, kwaye kunzima ukufezekisa ukuxinana okupheleleyo kwezinto;
③ Kwinqanaba lokugqibela le-sintering, kunzima ukuphelisa ngokupheleleyo ii-pores ezishiyekileyo kunye noxinzelelo oluqhubekayo.
Ukuza kuthi ga ngoku, iqela lophando lombhali licebise imbono entsha yoyilo lokwazisa uxinzelelo oluguquguqukayo lwe-oscillating ukuze luthathe indawo yoxinzelelo olukhoyo olukhoyo kwinkqubo yokucoca umgubo, kwaye yakhokela ekuphuhliseni itekhnoloji ye-OPS kunye nezixhobo kwihlabathi.Ngaphantsi kwesenzo soxinzelelo olukhulu oluthe gqolo, i-oscillating i-oscillating frequency kunye ne-amplitude ibekwe phezulu ukuguqula "amandla afileyo" asetyenziswe kwi-sintering yendabuko ibe "ngamandla".Umzobo oqingqiweyo wesixhobo sokudibanisa uxinzelelo lwe-oscillating kunye nomgaqo uboniswe kumzobo.

Itekhnoloji entsha ye-OPS ineengenelo ezizodwa zokulungiselela imathiriyeli ekufutshane noxinaniso lwethiyori (ngaphezulu kwe-99.9% yoxinaniso lwethiyori), iziphene ezisezantsi, kunye ne-ultra-fine grain microstructure.kunye nokuthembeka kunika indlela entsha.


Ixesha lokuposa: Jun-10-2022