Isitofu seCeramic sokuBumba iCold Sintering (CS)

Inkqubo esisiseko yeisitofu se-ceramic yokubumbaItekhnoloji ye-CS kukongeza umthamo omncinci wesisombululo esinamanzi kwi-ceramic powder ukumanzisa amasuntswana, kunye nesixhobo somphezulu somgubo sichithwa kwaye sinyibilike ngokuyinxenye kwisisombululo, ngaloo ndlela sivelisa isigaba solwelo phakathi kwe-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-ceramic material exineneyo ingalungiswa. Ngethuba le nkqubo, i-microstructure yeizinto ze-ceramiciyaguquka. njengoko umfanekiso ubonisa.

Nangona kukho izinto ezininzi 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 ngexeshainkqubo sinteringinceda ukuphelisa iipores kunye nokuphucula ukuxinana kweekeramics, kodwa kunzima ukwenza i-ionize ngokupheleleyo kwaye idibanise ngokudibeneyo iiseramikhi 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 kokutshiza kunye nakwinqanaba lokuqala le-sintering, 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 ineenzuzo 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.