Teknụzụ Nkwadebe nke Alumina Ceramics (2)

akọrọ ịpị

Usoro ịkpụzi ọkpọkọ

Alumina seramiikiTeknụzụ ịkpụzi nkụ akọrọ na-ejedebe na ọdịdị dị ọcha na ọkpụrụkpụ mgbidi karịa 1mm, ogologo na dayameta ruru abụghị ihe karịrị 4∶1 ngwaahịa.Usoro nhazi bụ uniaxial ma ọ bụ biaxial.Igwe nta akụkọ ahụ nwere hydraulic, ụdị igwe eji arụ ọrụ abụọ, nwere ike ịbụ ọkara akpaka ma ọ bụ ịkpụzi akpaaka.Oke nrụgide nke pịa bụ 200Mpa, na mmepụta nwere ike iru 15 ~ 50 iberibe kwa nkeji.

N'ihi nrụgide strok otu nke hydraulic press, ịdị elu nke akụkụ ịpị dị iche iche mgbe ndochi ntụ dị iche.Otú ọ dị, nrụgide a na-etinye site na ịpị ígwè na-adịgasị iche na ọnụ ọgụgụ nke ntụ ntụ ntụ, nke ga-adị mfe na-eduga na ọdịiche dị na nha shrinkage mgbe sintering na-emetụta àgwà nke ngwaahịa.Ya mere, otu nkesa nke ntụ ntụ na akọrọ na ịpị usoro dị ezigbo mkpa maka ebu ndochi.Ma ọnụọgụ njuputa ahụ ziri ezi ma ọ bụ na ọ nweghị mmetụta dị ukwuu na njikwa ziri ezi nke akụkụ seramiiki alumina arụpụtara.Enwere ike nweta mmetụta kachasị n'efu mgbe ihe ntụ ntụ dị ukwuu karịa 60μm na n'etiti 60 ~ 200 ntupu, enwere ike nweta mmetụta nrụgide kachasị mma.

Usoro ịkpụzi Grouting

Ịkpụzi ahịhịa bụ ụzọ izizi mbụ ejiri mee yaalumina seramiiki.N'ihi na iji gypsum ebu, ọnụ ala na mfe na-etolite nnukwu size, mgbagwoju udi akụkụ, isi ihe nke grouting ịkpụzi bụ nkwadebe nke alumina slurry.Na-emekarị na mmiri dị ka flux ọkara, wee tinye gluu dissolving gị n'ụlọnga na ihe nkedo, n'ụzọ zuru ezu mgbe egweri iyuzucha, wee wụsara n'ime plasta ebu.N'ihi mgbasa nke mmiri site na capillary nke gypsum ebu, slurry na-esi ike na ebu.Oghere grouting, na ebu mgbidi adsorption slurry ọkpụrụkpụ ruo chọrọ, kamakwa mkpa wụsa ngafe slurry.Iji belata shrinkage nke ahụ, a ga-eji slurry dị elu mee ihe dị ka o kwere mee.

Ekwesịrị ịgbakwunye ihe mgbakwunye organic naalumina seramiikislurry na-etolite a okpukpu abụọ electric oyi akwa n'elu nke slurry irighiri nke mere na slurry nwere ike kwụsịtụrụ stably na-enweghị ọdịda.Ke adianade do, ọ dị mkpa ịgbakwunye vinyl mmanya, methyl cellulose, alginate amine na ndị ọzọ na-ekekọta na polypropylene amine, Arabic chịngọm na ndị ọzọ dispersants, nzube bụ ime ka slurry adabara grouting ịkpụzi ọrụ.

Teknụzụ na-emepụta ihe

Usoro teknụzụ nke densifying granular ceramic body na akpụ siri ike ihe a na-akpọ sintering.Sintering bụ usoro iji wepụ ihe efu n'etiti ihe dị n'ime ahụ nke billet, wepụ obere gas na adịghị ọcha site na ihe ndị dị ndụ, nke mere na ihe ndị ahụ na-etolite ọnụ ma na-emepụta ihe ọhụrụ.

Ngwa kpo oku a na-eji maka igba egbe bụ ọkụ eletrik.Na mgbakwunye na nrụgide nrụgide nkịtị, ya bụ, na-enweghị nrụgide nrụgide, ikpo ọkụ na-ekpo ọkụ na ikpo ọkụ isostatic.Na-aga n'ihu na-ekpo ọkụ na-ekpo ọkụ nwere ike ịbawanye mmepụta, ma ọnụ ahịa akụrụngwa na ebu dị oke elu, na mgbakwunye na ogologo ngwaahịa ahụ dị oke.Hot isostatic mgbali sintering adopts elu okpomọkụ na elu mgbali gas dị ka nrụgide nyefe usoro, nke nwere uru nke edo kpo oku n'akụkụ niile, na adabara sintering nke mgbagwoju ngwaahịa.N'ihi nhazi nke otu, ihe onwunwe nke ihe na-abawanye site na 30 ~ 50% ma e jiri ya tụnyere oyi ịpị sintering.10 ~ 15% elu karịa nkịtị na-ekpo ọkụ ịpị sintering.


Oge nzipu: Mee-12-2022