Yuav ua li cas tiv thaiv qhov tshwm sim ntawm bubbling hauv cov hlau nplaum muaj zog

Yuav ua li cas tiv thaiv qhov tshwm sim ntawm blistering nyob rau hauv hlau nplaum? Cov ntsiab lus noo noo ntawm qhov khoob, qhov nruab nrab qhov loj me ntawm lub pob zeb, pre-sintering thiab sintering kub, thiab cov cua ntawm lub qhov cub sintering muaj kev cuam tshuam zoo rau lub foaming tus nqi ntawm cov hlau nplaum. Qhov tsis tiav volatilization ntawm cov dej nyob hauv nruab nrab ntawm qhov khoob yuav ua rau muaj qhov nce ntawm qhov blistering ntawm cov hlau nplaum. Kev sib tham tshwj xeeb yog raws li hauv qab no:

①Yog hais tias qhov sib txawv ntawm qhov sib txawv ntawm sab hauv thiab sab nrauv cov ntsiab lus ntawm qhov khoob yog qhov loj heev tom qab qhov khoob tawm ntawm cov pwm, cov hlau nplaum yooj yim ua npuas dej. Qhov no yog vim hais tias thawj qhov chaw noo noo evaporation tus nqi ntawm cov dawb paug yog sai dua li cov internal ya raws diffusion tus nqi. Nrog rau lub sijhawm dhau los, cov ntsiab lus ntawm cov av noo noo txo ​​qis, thiab qhov sib txawv ntawm qhov sib txawv ntawm cov ntsiab lus ntawm sab hauv thiab sab nrauv ntawm qhov dawb paug nce. Yog hais tias muaj cov seem kaw dej nyob hauv nruab nrab ntawm qhov khoob, foaming ntawm qhov kub thiab txias. Yog hais tias qhov sib txawv ntawm sab hauv thiab sab nrauv noo noo cov ntsiab lus ntawm cov dawb paug maj mam txo, lub blistering kuj maj mam txo.

② Hauv kev sib tsoo zoo, qhov loj dua qhov me me, qhov yooj yim dua qhov diffusion ntawm sab hauv thiab sab nrauv capillary dej, thiab qhov me dua qhov foaming npaum li cas ntawm cov hlau nplaum.

③ Thaum lub sij hawm sintering, tsis muaj foaming hauv qab ib qho sintering kub. Qhov kub no yog hu ua qhov tseem ceeb kub ntawm foaming. Saum toj no qhov kub thiab txias, tus nqi foaming yuav maj mam nce nrog qhov nce ntawm sintering kub. Raws li qhov kub hnyiab hauv qhov kub nce, lub foaming tseem ceeb kub kuj nce.

④ Lwm qhov laj thawj rau bubbling yog tias tom qab cov khoom ua ntej sintered tawg thiab hauv av thiab tov nrog hlau los ua Fe2O3 nyob rau hauv cov txheej txheem crushing, nws yuav decomposed raws li cov tshuaj tiv thaiv mis ntawm 6Fe203=4Fe304 ntxiv O22Fe2O{{ 8}}FeO ntxiv rau O2 thaum sintering. Thaum Fe2O3 raug txo qis rau FeO, yog tias cov decomposed O2 tsis tuaj yeem tso tawm, nws tseem yuav ua rau cov npuas npuas.

⑤Sintering rauv nrog qhov cua zoo, nws cov hlau nplaum kuj muaj npuas.

Cov kev daws teeb meem tseem ceeb yog: ncua lub sij hawm ziab ntawm qhov khoob, tsim kom muaj qhov kub thiab txias ntawm cov khoom siv ua ntej sintered, qhov nruab nrab ntawm qhov loj ntawm lub pob milling, thiab txo qhov kub ntawm qhov nruab nrab sintering, thiab lwm yam.