Plywood yog nrov heev hauv kev tsim kho kev lag luam. Nws yog siv nyob rau hauv ntau yam teb. Cov khoom no yog ob peb daim ntawv nplaum ntawm cov ntoo veneer, ua tiav hauv ib txoj kev. Synthetic resins yog siv los txuas cov txheej txheem. Ua tsaug rau qhov no, txhua hom plywood tau tiv thaiv qee qhov ntawm cov dej noo. Tab sis muaj qee yam zoo dua li lwm tus los tiv thaiv qhov cuam tshuam ntawm ya raws. Qhov no yog plywood waterproof.
Production Features
Ntoo-laminated boards uas tuaj yeem tiv taus qhov ntev ntawm cov dej noo, raws li GOST raug xaiv los ua PSF.
Cov ntawv plywood tsis muaj dej yog tsim los siv cov khoom tshwj xeeb xaiv. Cov tshuaj no tiv thaiv cov khoom los ntawm noo noo. Qhuav roj yog siv los impregnate ntoo, pleev xim rau. Hauv qee hom, txheej txheej yog puttied nrog cov khoom siv PVA, fiberglass yog siv.
Tam sim no nyob rau theem ntawm kev tsim cov phiaj, cov qib ntawm cov dej tsis haum yog teem. Qhov no yog ua los ntawm kev kho qhov muaj pes tsawg leeg ntawm cov khoom siv hluavtaws siv los khi cov khaubncaws sab nraud povtseg. Yog li ntawd, paub txog cov khoom uas tau siv los ua kua nplaum, koj tuaj yeem txiav txim siabnoo noo cov ntsiab lus ntawm cov khoom:
- Slabs ua siv cov tshuaj carbamide muaj qhov txwv tsis pub ya raws li ntawm 5-10%. Cov ntaub ntawv zoo li no tuaj yeem tiv taus tsuas yog luv luv rau cov dej noo.
- 10-15% tiv thaiv kom ya raws muab kev siv phenol-formaldehyde tebchaw. Daim phiaj ntawm hom no tuaj yeem siv rau kev ua haujlwm sab nraum zoov.
- Waterproof laminated plywood tsis raug kev puas tsuaj nyob rau hauv lub zog ntawm ya raws. Nws tiv thaiv los ntawm ib zaj duab xis siv rau saum npoo ntawm phaj.
Qhov zoo ntawm cov khoom thiab nws qhov tsis zoo
Txoj kev tsim khoom ua rau plywood ruaj thiab tiv taus deformation. Qhov no yog ua tiav vim muaj ntau txheej txheej thiab cov nplaum tshwj xeeb. Yog li ntawd, cov txiaj ntsig hauv qab no ntawm cov phiaj xwm no tuaj yeem paub qhov txawv:
- Moisture resistant. Waterproof plywood tsis raug puas tsuaj nyob rau hauv tus ntawm ya raws. Nws tsis lo rau txheej thiab tsis deform.
- Yooj yim siv. Lub zog siab ntawm cov khoom siv tsis cuam tshuam nrog kev ua haujlwm. Plywood tau yooj yim ua tiav nrog ntau yam cuab yeej. Yooj yim rau nruab.
- Compatibility nrog lwm cov ntaub ntawv hauv tsev. Feem ntau, plywood waterproof yog siv los ua ib qho khoom siv ntxiv. Nws yooj yim ua ke nrog cov khoom siv ntuj tsim thiab polymeric.
- Hnav tsis kam. Plywood tiv taus txhua yam kev ntxhov siab yam tsis ua txhaum nws txoj kev ncaj ncees.
- Resistant kub heev.
- Wide Scope.
- Aesthetics. Plywood sab nraud muaj cov qauv ntoo qub thiabxim.
- Tus nqi pheej yig. Plywood boards yog pheej yig dua li cov khoom ntoo. Thiab koj tuaj yeem txuag nyiaj ib txwm los ntawm kev xaiv cov khoom siv qis dua.
Qhov tsuas yog qhov tsis zoo ntawm cov khoom yog qhov muaj cov tshuaj phem uas ua rau cov nplaum. Peb tab tom tham txog formaldehyde. Yog li ntawd, nws tsis pom zoo kom siv plywood hauv thaj chaw nyob thiab qhov chaw muaj menyuam yaus lossis cov neeg muaj kev fab tshuaj.
Scope of application
plywood resistant yog siv nyob rau hauv ntau industries. Feem ntau nws yog siv rau hauv kev tsim kho. Nws yog siv hauv cov txheej txheem hauv qab no:
- Cov phab ntsa, pem teb, ru tsev.
- Kho kom zoo nkauj sab hauv tsev.
- Kev ua cov khoom dai.
- Raws li daim ntawv rov siv tau.
- Rau cov ntawv tshaj tawm.
- Rau cov ntim khoom.
Vim muaj zog, kev ntseeg tau thiab qhov hnyav, cov plywood waterproof yog siv rau hauv kev tsim cov nkoj, railways, vaj rooj tog. Ib hom txiv kab ntxwv peeled yog siv txawm nyob rau hauv aviation.
Tim phaj
Muab rau hauv tus account lub degree ntawm noo noo tsis kam, plywood yog tsim nyob rau hauv ntau hom:
- FC. Qhov no yog cov khoom siv uas yog tsim los ntawm urea-formaldehyde compounds. Nws muaj qhov nruab nrab noo noo tsis kam. Tab sis nws muaj ib puag ncig zoo phooj ywg. Siv rau kev ua haujlwm sab hauv, rooj tog tsim khoom thiab kho kom zoo nkauj.
- FSF tau nce kev tiv thaiv kev ya raws. Raws liadhesives siv phenol-formaldehyde resins. Hauv pem teb ntxhib, ru tsev lathing, ntim, billboards yog tsim los ntawm cov khoom siv.
- FBS muaj kev tiv thaiv zoo tshaj plaws tiv thaiv ya raws thiab o. Qhov no yog Bakelized ya raws resistant plywood. Nws yog siv rau hauv kev lag luam shipbuilding thiab aircraft.
Nyob rau hauv tsos, plywood waterproof muab faib ua tsib qib (los ntawm 1 txog 5). Yog tias cov slabs yog ua los ntawm cov ntoo tawv, tsab ntawv E ntxiv rau pem hauv ntej ntawm cov lej thaum kos npe. Nyob rau hauv cov ntaub ntawv ntawm softwood, tsab ntawv X yog siv.
Qhov zoo ntawm kev kho saum npoo ntawm cov khoom yog qhov txawv ntawm unpolished (NSh), nrog ib sab sib tsoo (Sh-1) thiab nrog ob sab sib tsoo (Sh-2).
Nws tseem muaj kev faib tawm nyob ntawm seb muaj pes tsawg ntawm formaldehyde hauv cov khoom. Nrog rau cov ntsiab lus txog li kaum milligrams ib puas grams ntawm cov khoom loj, lawv hais txog E-1 emission class. Yog hais tias cov resin muaj li ntawm kaum mus rau peb caug milligrams, ces chav kawm E-2 yog qhia.
Slab sizes
Cov khoom siv nruab nrab yog 1, 22x2, 44, 1, 25x2, 50, 1, 52x3, 05, 1, 52x1, 52 m. Qhov no tsis yog tag nrho, tab sis tsuas yog qhov loj me uas tsim cov plywood waterproof.. Lub thickness ntawm daim hlau yuav yog los ntawm 9 mus rau 40 mm. Nws nyob ntawm tus naj npawb ntawm cov txheej ntoo. Yuav muaj li ntawm peb mus rau nees nkaum ib.
- FK hom plywood yog tsim nyob rau hauv ntev ntawm 1.525 m. Nws qhov dav tuaj yeem yog 1.22, 1.27 lossis 1.525 m.
- FSF muaj qhov dav ntawm 1.22 thiab 1.25 m. Nws qhov ntev yog 2.44, 2.5 m.
- DimensionsFBS plywood txawv ntawm qhov ntev ntawm 1.5 txog 7.7 m, dav ntawm 1.2 txog 1.55 m.
User tshuaj xyuas
Raws li cov neeg siv khoom, cov plywood tsis muaj dej yog cov khoom siv zoo uas tsis ntshai ntawm ya raws thiab huab cua tshwm sim. Lawv kuj tseem nco txog lub zog ntawm cov khoom siv.
Ntxiv rau, qhov yooj yim ntawm kev teeb tsa thiab kev ua tiav tau sau tseg. Koj tuaj yeem muab cov ntsia hlau rau hauv daim hlau, zawm cov ntsia hlau, ua qhov hauv lawv, thiab lwm yam. Thiab tag nrho cov no tsis ua rau muaj teeb meem.
Ntawm cov minuses, cov neeg siv khoom nco txog qhov nyuaj hauv kev thauj plywood. Qhov no yog vim qhov loj me. Qhov ntev ntawm plywood waterproof yog ib txwm ntau tshaj ib meter. Vim li no, daim hlau tsis haum txhua yam khoom siv. Yog li ntawd, txhawm rau thauj cov khoom, nws yog qhov yuav tsum tau nrhiav kev thauj khoom tsim nyog.
