Vim li cas thiaj li muaj ntau cov fiber ntau cement boards zoo ib yam tab sis ua tau txawv kiag li thaum koj siv lawv?
Nws los rau ib yam uas neeg feem coob yeej tsis pom: fiber ntau dispersion. Thiab nws yog qhov mob tiag tiag hauv lub nroog Yeiuxalees kom tau txais txoj cai.
Yog tias koj cov fibers tsis tawg, koj lub rooj tsavxwm cov khib nyiab.
Feem ntau, fibers pab pawg thawj coj ua kom muaj zog, xav txog rebar hauv pob zeb. Yog tsis muaj fibers, tsis muaj zog. Tab sis qhov ntes yog: fibers nyiam ua pawg. Lawv tshwm sim raws li ib tug tangle ntawm cov plaub hau nyob rau hauv ib tug microscope. Thaum daig clumps yog tov nrog cov cement, lub rooj tsavxwm yuav saib zoo los ntawm sab nraud tab sis sab hauv nws yog qhov tsis muaj zog. Cov cheeb tsam uas tsis muaj fibers yog qaug zog li cov cracker. Cov cheeb tsam uas cov fibers tau dov rau hauv cov pob ua cov ntsiab lus tsis muaj zog thiab. Thaum kawg, tawg, warping, thiab lwm yam teeb meem yuav tshwm sim.
Yog li vim li cas thiaj nyuaj heev kom tau txoj cai?
Vim tias koj yuav tsum cais txhua txhua fiber ntau yam tsis tau tawg. Xav txog kev noj ib lub tais ntawm spaghetti siav thiab sim ua kom tsis muaj zog txhua txoj hlua tsis muaj snapping ib qho. Hmoov zoo.
Siv cov txheej txheem tsoos? Yog tias koj muab lawv ua ke rau ntau lub sijhawm, cov fibers yuav puas lawm thiab yuav tsis muaj zog ntxiv. Yog tias koj muab lawv ua ke thiab tsis pub sijhawm txaus rau cov fibers sib cais, lawv yuav ua tsis tau zoo. Ua kom qhov teeb meem loj dua, qhov sib txawv fiber ntau ntev thiab ntau qib ntawm thickening slurry tuaj yeem xav tau qhov sib txawv kiag li thaum sib xyaw cov fibers rau hauv slurry - lo lus teb tsis yog.
Peb tau siv ntau xyoo rau qhov no. Hlawv los ntawm ntau pua tons ntawm seem. Thaum kawg xam pom cov txheej txheem graded dispersion. Yeej: ua ntej- ntub cov fibers kom lawv tsis txhob sib ntaus sib tua, ntaus lawv nrog tsuas yog cov neeg kho tshuab txoj cai kom cais lawv nyob rau hauv theem, ces sib tov nrog cement nyob rau hauv lub tshuab nqus tsev vacuum. Nov yog peb cov kua ntses zais cia. Txawm tias peb cov neeg muab khoom siv tsis paub tag nrho.
Yog li cas qhov ntawd tau txais koj?
Txiav ib qho ntawm peb cov laug cam thiab saib ntawm tus ntoo khaub lig-section. Fibers kis tau txawm zoo li cov noob hnav noob hnav rau ntawm lub pob. Tsis muaj pob dawb (clumps), tsis muaj qhov tsaus nti (tsis muaj fibers).
Peb qhov txiaj ntsig tiag tiag:
- Lub zog sib xws - batch rau batch, nws txav tsawg dua 5%
- Kev txiav kom huv - tsawg dua chipping, thiab koj cov saws ntev ntev 30%.
- Nyuaj zoo li ntuj raug txim – 50 khov -thaw cycles, tsis muaj kab nrib pleb
Fiber dispersion suab boring. Tab sis tom qab nws yog ib lub roob ntawm junk boards thiab nyuaj zaj lus qhia. Qhov kev lag luam no? Yooj yim pib, nyuaj li ntuj txiag teb tsaus rau tus tswv. Leej twg tuaj yeem yuav lub tshuab. Tab sis tau txais txhua tus fiber ntau txoj cai, txhua square feet? Uas yuav tsum hwm rau cov khoom siv tes ua.