Kev txhaj tshuaj molding yuav ntxiv ethylene raws li cov organic monomers rau qhov nruab nrab ncua kev kawm

Kev txhaj tshuaj molding yuav ntxiv ethylene raws li cov organic monomers rau qhov nruab nrab ncua kev kawm

Kev txhaj tshuaj molding yog cov txheej txheem ntawm kev ntxiv ethylene raws li cov organic monomers rau qhov nruab nrab ncua kev kawm, thiab tom qab ntawd siv cov catalysts thiab cov thawj coj los hla cov organic monomers los ntawm cov tshuaj tiv thaiv dawb radical, ua tiav hauv qhov chaw solidification ntawm lub cev ntsuab. Lub gel casting tshuab yog ib qho tshiab colloidal sai prototyping thev naus laus zis thawj zaug tsim los ntawm cov kws tshawb fawb ntawm Oak Ridge National Laboratory thaum xyoo 1990s.

Qhov zoo: Lub cev muaj zog muaj zog thiab yooj yim rau tshuab.

Disadvantages: Thaum lub sij hawm densification txheej txheem, lub shrinkage tus nqi ntawm lub billet yog kuj siab, ua rau khoov thiab deformation ntawm lub billet. Tsis tas li ntawd, cov organic monomers siv yog tshuaj lom thiab cov tshuaj tiv thaiv huab cua tsis yooj yim los tswj.

Casting txoj kev

Casting molding yog hais txog ib txoj kev molding uas cov kuab tshuaj, dispersants, binders, plasticizers, thiab lwm yam khoom siv ntxiv rau cov hmoov ceramic kom tau txais cov slurry zoo sib xws, thiab cov yeeb yaj kiab uas xav tau yog tsim los ntawm lub tshuab casting.

Qhov zoo: Cov cuab yeej siv yooj yim, kev ua haujlwm tsis tu ncua, kev ua haujlwm siab ntau lawm, qib siab automation, cov txheej txheem ruaj khov, thiab kev ua haujlwm zoo ntawm cov billet.

Direct solidification molding

Direct solidification molding yog ib lub tswv yim tshiab ntawm net loj nyob rau hauv-situ ceramic molding tshuab tsim los ntawm xibfwb Gauckler cov kev tshawb fawb pab pawg ntawm Swiss Federal Institute of Technology Zurich nyob rau xyoo 1990, uas ua ke nrog cov khoom siv roj ntsha, kev siv tshuaj lom neeg, colloidal chemistry, thiab ceramic technology.

Cov txiaj ntsig: Tsis yog lossis tsuas yog ib qho me me ntawm cov organic ntxiv (tsawg dua 1Wt%) yog qhov tsis zoo, cov txheeb ze lub zog yog qhov siab, thiab cov qauv zoo nkauj thiab muaj ntau yam tuaj yeem tsim tau.

Disadvantage: Lub zog ntawm billet feem ntau tsis siab txaus.

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