1. Daim ntawv ua rau lub rooj tsavxwm muaj zog
Lub ntsej muag daim ntawv muab lub gypsum board nws tensile zog. High- cov ntawv ua tau zoo siv cov ntawv ua los ntawmnkauj xwb ntoo pulp- Lub teeb yuag, ntim nrog cov fibers ntev, thiab ib txwm tawv -1. Economy boards feem ntau cia siab rau cov ntawv siv dua tshiab, uas nyhav hnyav dua, nkig dua, thiab qee zaum muaj cov roj los yog cov kua nplaum uas ua rau cov xim tsis zoo tom qab -1.
Yuav nug koj tus neeg muag khoom li cas:
Dab tsi yog daim ntawv qhov chaw - nkauj xwb los yog siv dua tshiab?
grammage yog dab tsi? Premium ntsej muag daim ntawv feem ntau yog nyob ntawm140–170 g/m², nrog daim ntawv rov qab ntawm160–180 g/m² -2.
2. Adhesion Quality Matters ntau dua li koj xav
Lub rooj tsavxwm zoo muaj daim ntawv-rau- cov ntawv cog lus tseem ceeb uas yuav luag muaj cov molecular. Nov yog ib qho kev sim yooj yim: muab daim ntawv ntsej muag thiab sim tev nws rov qab. Ib daim ntawv zoo yuav tsuas rhuav tshem hauv nyias nyias, noj ib tug sliver ntawm cov tub ntxhais nrog nws -1. Yog tias daim ntawv tawm hauv ib daim ntawv tag nrho - lossis yog cov chunks ntawm gypsum crumble tam sim ntawd - koj tab tom saib kev sib txuas tsis ua haujlwm tos kom tshwm sim -1.
Liab chij:Yog tias tus neeg muag khoom tsis tuaj yeem lav qhov adhesion muaj zog, taug kev mus. Kev sib raug zoo tsis zoo ua rau hu rov qab, kho, thiab cov neeg siv khoom tsis zoo siab.
3. Nto Texture cuam tshuam koj lub sijhawm ua tiav
Yog tias daim ntawv yog du thiab huv si, koj tuaj yeem pleev xim ncaj qha nrog kev npaj me me. Yog hais tias nws yog ntxhib, plaub hau, los yog pom blemishes, koj tab tom saib lub sij hawm ntxiv thiab nyiaj siv rau priming thiab skim txheej -1. Tsis muaj leej twg xav tawm tsam daim ntawv thaum sim kom tau txais kev ua tiav.
Yuav nrhiav dab tsi:
Uniform xim thiab du nto
Tsis muaj roj me me, av, lossis pom qhov tsis xws luag
Ib txwm thickness hla lub yob
4. Kev ua raws li cov qauv tsis yog-Tshaj tawm
Suav tebGB/T 26204-2010txheem (Plaster liner board) txhais raws nraim li cas gypsum board ntsib daim ntawv yuav tsum ua -3. Nws faib cov ntawv rau hauv lub ntsej muag lub ntsej muag thiab lub nraub qaum, nrog peb qib zoo: hwm, thawj -chav kawm, thiab tsim nyog. Cov ntawv qib hwm qib yuav tsum ua kom tau raws li qhov yuav tsum tau ua rau qhov hnyav siab (± 3%), huab cua permeability, nqus dej saum npoo (Cobb txoj kev), ci ntsa iab (Ntau dua lossis sib npaug li 40%), thiab lub zog tensile -longitudinal tensile lub zog tsawg kawg yog 10.5 kN / mrau premium face board -3.
Ib txwm thov daim ntawv pov thawj ntawm Kev Ntsuam Xyuasraws li GB/T 26204-2010 los txheeb xyuas cov xya qhov tseem ceeb -3:
Qhov hnyav sib txawv
Kev nruj
Permeability
Kev nqus dej (lub ntsej muag Tsawg dua lossis sib npaug li 40 g / m², rov qab Tsawg dua lossis sib npaug li 80 g / m²)
Tensile zog
Shrinkage (tsawg dua lossis sib npaug li 2.8% rau qib hwm)
Cov dej noo (8-14%)
5. Xim Qhia rau koj paub tias koj tau txais dab tsi
Cov xim sib txawv ntawm cov ntawv sib txawv qhia ntau hom board -6:
| Xim | Hom | Daim ntawv thov |
|---|---|---|
| Grey/Ivory | Standard (Hom P) | Chav nyob, chav pw, siv dav dav |
| Lub Teeb Ntsuab | Moisture -Resistant (Hom S) | Chav ua noj, chav dej, av noo tsawg dua lossis sib npaug li 95% |
| Paj yeeb | Hluav taws kub-Resistant (Hom H) | Hluav taws kub- cov cheeb tsam, cov tsev lag luam |
6. Logistics thiab Shipping Risks
Gypsum board ntawv yog rhiab heev rau ya raws. High humidity thaum lub hiav txwv hla kev xav taupeb txheej tiv thaiv: Thaum tshav kub kub- kaw cov hnab yas sab hauv + sab nrauv qhwv + desiccants -2. Rolls yuav tsum tau muab khi rau hauv cov thawv kom tsis txhob crushing -2.
Standard ntim peev:
20GP: 12-16 tons
40GP / HQ: 25-28 tons -2
Xaiv tus neeg muag khoom uas nkag siab txog kev ntim khoom xa tawm - nws txuag koj ntawm kev tau txais cov khoom puas.
Thaum kawg Take away
Gypsum board ntsib daim ntawvtsis yog ib qho me me. Nws yog qhov zais spec uas txhais cov khoom kawg -1. Ua ntej koj qhov kev txiav txim tom ntej, nug cov lus nug nyuaj:
Dab tsi yog daim ntawv qhov chaw thiab grammage?
Koj puas tuaj yeem muab cov ntaub ntawv xeem ntawm adhesion thiab tensile lub zog?
Koj puas ua raws li GB/T 26204-2010?
Koj pob li cas rau kev xa khoom txawv teb chaws?
Ib tus neeg muag khoom ntseeg siab yuav teb cov lus nug no kom meej. Ib tug uas hesitates tej zaum muaj ib yam dab tsi los nkaum.
Yog tias koj muab khoomgypsum board los yog tig daim ntawvthiab xav tau kev taw qhia kev, ncav cuag. Peb tau nyob hauv kev lag luam no ntev txaus kom paub tias dab tsi ua haujlwm - thiab dab tsi tsis ua.
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