Usoro nkwadebe ụfụfụ aluminum

N'ihi usoro nkwadebe dị iche iche, enwere ike kewaa ụfụfụ aluminom na ụfụfụ aluminum mechiri emechi, ọkara.ụfụfụ aluminum mechiri emechi, na ụfụfụ aluminom na-emeghe-cell dabere n'otú e si ejikọta oghere ndị ahụ. Enwere ike kewaa ụzọ nkwadebe nke ụfụfụ aluminom n'ime ụzọ atọ: usoro mmiri mmiri, akụkụ siri ike, na ntinye.

(1) Usoro mmiri mmiri

Usoro nke usoro mmiri mmiri bụ usoro nkwadebe tozuru oke nke ụfụfụ aluminom, nwere ikike nyocha sara mbara yana atụmanya ngwa, ọkachasị gụnyere gas na-afụ n'ime usoro mmiri igwe, usoro mmiri igwe na-afụ igwe, usoro ntinye ntinye ego, na usoro nkedo seepage.

Gas ịfụ n'ime metal mmiri mmiri usoro: na a wụrụ awụ metal aluminum gbazee tinye thickener ahụ, ka mma viscosity nke gbazee, ọtụtụ-eji thickeners nwere silicon carbide, alumina magnesium oxide, wdg E mesịa, ka gbazee metal n'ime ikuku, nitrogen. , hydrogen, ma ọ bụ ngwakọta nke gas ndị a, na mgbe niile na-akpali akpali, na mgbaze metal nwere ike nweta mgbe obi jụrụ porosity nke 80% ~ 97.5% nke ụfụfụ aluminum, dị ka e gosiri na Figure 1.

Fig.1 Macromorphology nke aluminom ụfụfụ nke a kwadebere site na usoro injection gas

(2) Metal mmiri mmiri na-afụ ọnụ gị n'ụlọnga usoro: na aluminom gbazere gbazee tinye ihe na-efe efe, site na kpo oku na-efe efe n'ụlọnga ire ere n'ime gas ntọhapụ, gas thermal mgbasawanye nke metal a wụrụ awụ n'ime ụfụfụ, mgbe jụrụ oyi nwere ike nweta 91% ~ 93 % nke porosity nke ụfụfụ aluminom. Foaming gị n'ụlọnga na-eji na mmepụta nkealuminom ụfụfụTiH2, ZrH2, na CaH2, na ndị ọzọ.

(3) Usoro nkedo ebu a wụrụ awụ: iji ihe na-eme ka mmiri na-eme ka mmiri jupụta pores na ụfụfụ spongy, ka a na-eme ka ihe na-eme ka ọ sie ike, na-ekpo ọkụ na-eme ka gasification plastik na-enweta spongy pore Ọdịdị nke nkedo, a wụrụ aluminom wụsara n'ime. nkedo a, dị mma na nke siri ike iji wepụ ihe ndị na-emegharị ihe, enwere ike nweta porosity nke 80% ~ 97% nke aluminom ụfụfụ.

(4) Usoro nkedo seepage: aluminom mmiri dị elu na-ekpo ọkụ n'okpuru ụfọdụ nrụgide na-abanye n'ime oghere dị n'ime oghere iji nweta ihe mejupụtara igwe eji eme ihe, wee jiri imikpu ma ọ bụ ultrasonic vibration na ụzọ ndị ọzọ iji wepụ ihe mkpuchi ahụ, iji nweta porosity nke 70% ma ọ bụ karịaụfụfụ aluminum. Ihe ndị a na-ejikarị eme ihe bụ nnu soluble, bọọlụ ceramic porous nke na-adịghị ssoluble, bọọlụ corundum oghere, carbon foam, na ihe ndị ọzọ. Enwere ike kewaa usoro a ụzọ abụọ: usoro nkedo nke elu-nrụgide na usoro nkedo percolation na-adịghị mma.

2. Usoro usoro siri ike

(1) Usoro metallurgy ntụ ntụ: Usoro metallurgy ntụ ntụ bụ ịgwakọta ntụ ntụ aluminom na onye na-efe efe (TiH2 a na-ejikarị eme ihe) n'otu akụkụ, dozie ahụ tupu germ n'okpuru nrụgide kwesịrị ekwesị, mgbe ahụ, a na-agbanye ahụ tupu emepụtara ya. A na-emeziwanye ya, dị ka ntụgharị, ịhịa aka n'ahụ, wdg, mgbe ahụ, a na-etinye ngwaahịa a nke agwụchachara n'ime ihe a chọrọ nchara nchara, na-ekpo ọkụ na ụfọdụ okpomọkụ nke mere na onye na-afụ ụfụ. decomposes na-etolite afụ wee nweta ụfụfụ aluminom. Usoro a dị mgbagwoju anya karị, ma àgwà ngwaahịa ahụ dị elu ma arụ ọrụ ahụ kwụsiri ike, ya mere ọ na-etolite ngwa ngwa, ma usoro a enweghị ike ịmepụta ya n'ihu n'ihi ọnụ ahịa dị elu nke akụrụngwa.

(2) ntụ ntụ impregnation slurry usoro: hazi ụfọdụ viscosity nke aluminum ntụ ntụ slurry, na porous polymer ụfụfụ ihe na-mikpu na nke a slurry, na ntụ ntụ na-edebe na pore mgbidi nke polymer ụfụfụ ihe, na mgbe ahụ ihicha ọgwụgwọ, kpo oku nke mere na Thermal decomposition nke polymer ụfụfụ ihe, spongy ihe na decomposition usoro na-arụ a nwa oge nkwado ọrụ, na n'ikpeazụ aluminom ntụ ntụ na-sintered. ọnụ, na mgbe ahụ jụrụ iji nweta porosity nke 70% ka 90% nke Aluminom ụfụfụ.

(3) Tinye usoro ihe eji eme bọọlụ: tinye ihe bọọlụ ma ọ bụ bọọlụ oghere n'ime aluminom gbazee wee kpalie, nke mere na a na-ekesa ihe bọọlụ n'otu n'otu na aluminom gbazee; na-aga n'ihu na-akpali ma dị jụụ na viscosity zuru oke, ma gbanye ihe nlereanya ahụ iji nweta ihe ngwakọta nke metal-ball. Mgbe ihe bọọlụ agbakwunyere bụ ihe soluble, usoro nke ịsacha imi nwere ike iji gbazee ihe bọọlụ, iji nweta ụdị ụfụfụ nke aluminom.

3. usoro electrodeposition

Ụfụ site conductive usoro dị ka cathode ihe, ulo oru ọcha aluminum efere maka anode ihe, na alkyl aluminum ngwọta plating, nke mere na aluminum edebe n'elu nke ụfụfụ, mgbe ihicha na a ụfọdụ okpomọkụ sintering, thermal decomposition nke ụfụfụ,aluminom ụfụfụ. Usoro a dị mgbagwoju anya ma dị mkpa iji dozie mgbanwe ndị ahụ, ma usoro ụfụfụ ahụ na-ejikọta ya. E gosipụtara nhazi nke ụfụfụ aluminom nke usoro electrodeposition kwadoro na foto 2.

Fig. 2 Macromorphology nke aluminom foam nke a kwadebere site na electrodeposition