Kev tsim cov gypsum-based tus kheej txoj kev nplua nuj xav tau kev siv cov khoom siv raw, txhua qhov uas cuam tshuam tshwj xeeb cov khoom ntawm cov khoom kawg. Ib qho tseem ceeb ntawm kev celul sib nraws yog cellulose ether ether, uas yog qhov tseem ceeb ntxiv.
Gypsum-based tus kheej txoj kev kawm tsis zoo: ib qho kev pom
Kev siv tus kheej txoj kab cug yog ib lub tsev tshwj xeeb hauv tsev tsim rau cov ntawv thov cov ntaub ntawv du uas yuav tsum tau ua kom du, theem. Cov neeg muaj cai no feem ntau muaj kev sib txuas, ua ke thiab ntau yam kev sib deev kom ua tiav cov yam ntxwv ua tau zoo. Gypsum yog ib qho kev sib tw ntuj uas siv tau zoo li thawj zaug nyob rau hauv kev nplua nuj muaj kev nplua nuj vim nws cov yam ntxwv sai sai, suav nrog kev teeb tsa sai sai thiab ua haujlwm nrawm.
Cov Khoom Siv Raw Rau Gypsum-Raws Li Tus Kheej Lab-Cug:
1. Gypsum:
Tau qhov twg los: Gypsum yog cov ntxhia uas tuaj yeem raug muab txwv ntawm ntuj tso.
Muaj nuj nqi: Gypsum ua raws li cov phau ntawv tseem ceeb rau kev sib nphoo tus kheej. Nws pab hauv kev tsim kho sai thiab kev txhim kho lub zog.
2. Kev sib sau ua ke:
Tau qhov twg los: agent yog muab tau los ntawm ntuj sediments lossis crushed pob zeb.
Lub luag haujlwm: Aggregates, xws li cov xuab zeb lossis nplua gravel, muab cia rau nws cov khoom siv kho tshuab, suav nrog lub zog thiab siv tau ntev.
3. Cellulose Ethere:
Tau qhov twg los: Cellulose muaj kev hais ua Vajtswv tau muab tau los ntawm cov khoom siv cellule ntawm ntuj xws li ntoo pulp lossis paj rwb.
Muaj nuj nqi: Kev ua yeeb yam ether ua raws li kev saib xyuas kev ntseeg thiab cov dej los txhim kho lub zog ua haujlwm, adhesion thiab tag nrho cov kev ua tau zoo ntawm tus kheej cug cug.
4. High-efficiency dej txo tus neeg saib xyuas:
Tau qhov twg los: Superplasticizers yog cov khoom siv hluavtaws.
Muaj nuj nqi: Cov dej ua haujlwm siab ua rau cov neeg sawv cev thiab ua haujlwm ntawm collhu los txo cov ntsiab lus dej, ua rau nws yooj yim dua rau qhov chaw thiab qib.
5. Retarder:
Tau qhov twg los: retarders feem ntau yog raws cov organic sib txuas.
Muaj nuj nqi: Retarder tuaj yeem qeeb lub sijhawm ua haujlwm cug, txuas lub sijhawm ua haujlwm thiab txhawb cov txheej txheem theem.
6. Filling:
Tau qhov twg los: Fitters tuaj yeem yog ntuj (xws li limestone) lossis hluavtaws.
Ua Haujlwm: Sau ua ke ua rau muaj lub ntim ntawm lub cug, txhim kho cov khoom xws li ntom thiab thermal conductivity.
7. Fiber:
Tau qhov twg los: Fibers tuaj yeem yog ntuj (piv txwv li cellulose fibers) lossis hluavtaws (piv txwv li polypropylene fibers).
Muaj nuj nqi: Cov fibers ntxiv rau lub tensile thiab flexural lub zog ntawm lub tshuaj khib thiab txo qhov kev pheej hmoo ntawm kev tawg.
8. Dej:
Tau qhov twg los: Dej yuav tsum huv thiab haum rau kev haus.
Muaj nuj nqi: Dej yog qhov tseem ceeb rau cov txheej txheem hydration ntawm cov txheej txheem plaster thiab lwm yam khoom xyaw, pab txhawb kev txhim kho ntawm lub zog ntawm lub zog.
Cov Txheej Txheem Ntau Lawm:
Cov Khoom Siv Khoom Raw:
Gypsum yog mined thiab ua tiav kom tau txais hmoov zoo.
Lub aggregate tau sau thiab tsoo rau qhov yuav tsum tau loj.
Cellulose Cov neeg ua haujlwm raug tsim tawm los ntawm cov ntaub ntawv cellulose los ntawm kev ua tshuaj lom.
Mix:
Gypsum, agregate, cellulose neeg muaj kev hais ua, superplasticizer, Ribarder, Fibers thiab dej yog ntsuas thiab sib xyaw kom ua tiav homogeneous sib tov.
QC:
Kev muab cov pa sib xyaw kom nruj kev ntsuas kom ntseeg tau tias nws ua tau raws li cov txheej txheem sib xws, lub zog thiab lwm yam qauv kev kawm.
Pob:
Cov khoom kawg yog ntim rau hauv lub hnab lossis lwm cov ntim rau kev xa khoom thiab siv ntawm cov chaw tsim khoom.
Hauv kev xaus:
Kev tsim cov gypsum-based tus kheej txoj kev nplua nuj yuav tsum tau kev xaiv ceev faj thiab ua ke cov ntaub ntawv raw kom ua tiav cov khoom uas xav tau. Cov cellulose hais ua kom muaj kev hais ntxiv ua cov kev sib ntxiv uas txhim kho cov haujlwm ua haujlwm, adhesion thiab tag nrho kev tshuaj khib. Raws li kev tsim kho kev tsim kho txuas ntxiv mus hloov kho thiab kev tshawb fawb thiab kev tshawb fawb ntxiv tuaj yeem ua rau muaj kev sib ntxiv ntawm tus kheej, suav nrog kev siv cov khoom siv ntxiv.
Lub Sijhawm Post: Dec-11-2023