Ci ntsa iab formwork panels yog ib qho pom ntawm cov chaw tsim kho loj. Paub tias yog "liab- zaj duab xis plywood" (los yog "liab- zaj duab xis ncaj ncees- ntsib kev ua vaj tse"), cov khoom siv no tau dhau los ua qhov kev xaiv rau siab-nce vaj tse nyob, pem teb slabs, thiab shear phab ntsa vim nws cov nqi zoo heev -kev ua tau zoo piv thiab cov khoom tso tawm zoo dua.
Liab - zaj duab xis plywood yog dab tsi?
Yooj yim muab tso, nws muaj ntau- txheej plywood core nrog cov resin-impregnated liab zaj duab xis kub- nias rau ntawm ob sab pem hauv ntej thiab nram qab.
Cov yeeb yaj kiab liab no ua raws li "kev tiv thaiv kev tiv thaiv" rau lub rooj tsavxwm, thaiv cov dej noo thiab cov alkaline uas muaj nyob hauv cov pob zeb, thaum tseem tsim kom muaj qhov tshwj xeeb du. Qhob cam siv cov vaj huam sib luag no tshwm sim nrog lub tiaj tus, du tiav- feem ntau ua tiav "faj- ntsej muag pob zeb" zoo li- uas txo cov nqi zog thiab cov khoom siv cuam tshuam nrog kev sib tsoo thiab kev sib tsoo tom ntej.
Vim li cas cov chaw tsim kho nyiam nws?
Piv nrog rau lwm cov yeeb yaj kiab- ntsib cov kev xaiv formwork ntawm lub khw, liab- zaj duab xis plywood muaj ntau yam zoo:
Zoo heev flatness thiab tso tawm zog: Cov resin txheej tsim los ntawm cov zaj duab xis liab thaum kub - nias yog du heev; pob zeb tsis lo yooj yim, tso cai rau kev tshem tawm cov formwork sai yam tsis muaj kev puas tsuaj rau lub pob zeb nto.
Tus nqi siab -kev ua tau zoo piv: Piv rau pricier imported xim av- zaj duab xis panels, liab- zaj duab xis panels ntaus ib qho zoo tagnrho sib npaug ntawm tus nqi thiab reusability, ua rau lawv tshwj xeeb tshaj yog haum rau nruab nrab - mus rau - siab - nce tej yaam num uas kev tswj nyiaj txiag yog qhov tseem ceeb.
Corrosion thiab dej tsis kam: Kev sib xyaw ua ke ntawm cov yeeb yaj kiab liab thiab qhov siab -kub, siab - cov txheej txheem tsim cov txheej txheem ua haujlwm zoo tiv thaiv cov dej noo thiab tshuaj lom neeg los ntawm kev nkag mus rau hauv cov ntoo.
Xaiv cov vaj huam sib luag rau qhov chaw: 2 lub tswv yim kom tsis txhob "tsis zoo" boards
Qhov zoo ntawm liab- zaj duab xis panels ntawm lub lag luam sib txawv. Thaum kuaj xyuas cov khoom ntawm - qhov chaw, tsis txhob saib qhov liab ntawm qhov chaw; tsom mus rau ob cov ntsiab lus no kom tsis txhob muaj teeb meem:
1.Kuaj xyuas cov kua nplaum (kuaj dej npau) > High-liab zoo- zaj duab xis panels feem ntau siv phenolic resin kua nplaum los yog qib siab - qib hloov cov kua nplaum. Boil ib qho qauv me me rau ob peb teev; Yog hais tias nws tsis delaminate los yog poob adhesion, nws qhia tau hais tias cov dej kuj zoo, lub ntsiab lus nws muaj peev xwm tiv taus los nag hnyav thiab noo noo los ntawm cov pob zeb ntub dej.
2.Saib tus ntoo khaub lig-section thiab ntug sealing> Pom los ntawm lub rooj tsavxwm los tshuaj xyuas qhov profile sab; siab- cov boards zoo muaj cov khoom muaj zog, tag nrho cov tub ntxhais laminated nrog qhov ntom ntom, tsis muaj dab tsi - dawb sab hauv. Tsis tas li ntawd, xyuas kom meej tias cov npoo yog coated nrog tuab, tsis muaj dej tsis sib haum- yog tias cov ntug sealing tsis zoo, lub rooj tsavxwm yuav o thiab puas thaum nws los rau hauv dej.