Kev tsim cov plywood: thev naus laus zis, theem tseem ceeb ntawm cov txheej txheem thiab thaj chaw ntawm kev siv cov khoom siv

2024 Tus sau: Howard Calhoun | [email protected]. Kawg hloov kho: 2023-12-17 10:28

Plywood yog ib qho ntawm cov khoom siv pheej yig tshaj plaws thiab siv tau tshaj plaws. Txawm hais tias muaj ntau txheej txheej, nws yooj yim rau nruab thiab tuaj yeem ua tiav hauv tsev yam tsis muaj cov cuab yeej tshwj xeeb. Kev tsim cov plywood txheem suav nrog kev siv ntoo lamellas, uas, yog tias ua tiav, tuaj yeem siv los ua cov khoom tiav uas tiv taus ntau yam kev hem thawj.

Kev tsim khoom siv tshuab

Daim ntawv Plywood yog ib yam ntawm cov khoom ntoo heterogeneous. Tsuas yog nyias-nplooj veneer yog siv los ua lub hauv paus, superimposed rau ib leeg nyob rau hauv siab ntawm cov xovxwm. Qhov tseeb, tag nrho cov txheej txheem tuaj yeem muab faib ua peb theem tseem ceeb - kev npaj ntoo, nws cov txheej txheem thiab gluing. Tsis tas li ntawd, nyob rau hauv kev lag luam sib txawv, cov theem ntxiv tuaj yeem suav nrog kev txhim kho lossis hloov kho qee yam zoo ntawm cov khoom seem lossis cov khoom tiav. Piv txwv li, niaj hnub plywood manufacturing technologies muab rau rov impregnation ntawm lub veneer qauv nyob rau hauv thiaj li yuav muab nws refractory thiab Frost-resistant zoo. Qhov no yog qhov tseem ceeb tshwj xeeb yog tias plywood yuav tsum tau siv rau hauv kev tsim kho lub ru tsev tom qab. Tom qab tsim cov khoom siv no, kuj tseem muaj ntau cov pov tseg (tsuas yog tom qab tev), uas tuaj yeem noj tau hauv cov txheej txheem ntawm kev tsim cov khoom siv particle boards.

Kev xaiv thiab npaj cov ntoo khoob

Ntoo blanks rau plywood hu ua ridges. Rau lawv, massifs ntawm birch, linden, alder thiab ib co ntawm cov conifers feem ntau yog siv. Raws li nyob rau hauv cov ntaub ntawv ntawm zus tau tej cov ntaub ntawv uas raws li ntoo, plywood blanks undergo nruj zoo tswj, thaum lub sij hawm uas tsis xws luag thiab tsuas yog unsuitable raw cov ntaub ntawv raug tshuaj xyuas.

Cov txheej txheem tseem ceeb yog ua kom cov yas ntawm cov qauv ntoo, uas yog qhov tseem ceeb los ntawm qhov pom ntawm kev tau txais cov lamellas ntxiv. Raws li cov kev cai, kev tsim cov plywood los ntawm veneer yog ua tau tsuas yog thaum txiav blanks uas tau undergone hydrothermal kev kho mob. Qhov kev ua haujlwm no muaj nyob rau hauv chav kho ntawm cov cav thiab lawv qhov chaw nyob hauv dej ib puag ncig. Piv txwv li, cov pas dej nrog dej kub txog li 40 ºС yog siv rau birch blanks. Soaking kav ntev li ob peb hnub, nyob ntawm seb cov kab mob microclimatic sab nraud.

Mechanical debarking yog ua nyob rau theem kawg ntawm kev npaj ntoo. Cov tawv ntoo raug tshem tawm, tom qab uas cov blocks raug tsim los ntawm cov tshuab sawing. Cov no yog cov khoomcov cav ntoo, qhov ntev ntawm qhov sib txawv ntawm 130 txog 150 cm ntawm qhov nruab nrab. Lawv siv los txiav veneer.

Kev lag luam niaj hnub siv ntau txoj hauv kev los txiav lamellas rau plywood. Ntawm cov no, tev tawm nrog kev pab los ntawm lub tshuab ncig, npaj blocks, nrog rau sawing lawv mus rau hauv nyias strips, sawv tawm. Txawm li cas los xij, cov txheej txheem ntawm kev npaj thiab sawing, vim tias cov khoom lag luam qis thiab kev lag luam tau nce ntxiv los ntawm kev tev. Rau kev ua haujlwm no, cov tshuab tshwj xeeb yog siv los txiav cov workpieces hauv ntu ntu. Lub cav yog tsau rau ntawm lub hauv paus ncig thiab, nyob rau hauv tus txheej txheem ntawm kev sib hloov nyob ib ncig ntawm nws axis, yog txiav tawm nrog high-precision tev riam. Qhov no yog yuav ua li cas lub sij hawm tseem ceeb tshaj plaws nyob rau hauv lub plywood manufacturing txheej txheem yog ua, uas lub ntsiab yam ntxwv ntawm cov khoom yav tom ntej nyob ntawm seb. Tiav strips ntawm lamellas tuaj tawm ntawm lub tshuab dhos. Lawv muab tso rau hauv pawg, tom qab ntawd lawv raug xa mus rau kev ua haujlwm ntxiv.

Veneer ziab

Rau cov txheej txheem no, siv lub tshuab tshwj xeeb, uas cov lamellas tau tshuab nrog cua sov tam sim no. Nrog kev pab los ntawm kev ntsuas cov cuab yeej xws li lub ntsuas dej noo, tus neeg ua haujlwm kab tswj hwm thiab txheeb xyuas cov veneer. Raws li thev naus laus zis, qhov zoo tshaj noo noo cov ntsiab lus ntawm lamellas rau plywood ntau lawm yuav tsum yog 6%. Cov ntawv ntub dej ntau dhau tom qab kev kho cua sov yog xa mus rau ziab lossis tsis kam lees. Txij li cov lamellas muaj cov qauv zoo nkauj heev, cov khoom siv kho tshuab feem ntau ntsib. Tab sis nyob rau hauv lub xub ntiag ntawm me me kev puas tsuaj, lub veneer tsis muab pov tseg. Nyob ntawmNyob rau theem no, nws muaj peev xwm kho cov ntawv plywood nrog kev pab los ntawm cov khoom siv dag zog ntawm cov khoom tawg ntawm cov veneer tshiab, uas yog xaiv raws li kev ntxhib los mos, cov ntsiab lus noo noo thiab qhov loj me. Lamels uas ua tiav dhau theem no raug kuaj xyuas los ntawm lub tshuab luam ntawv thiab xa mus rau kev khaws cia txhua hnub.

slat bonding

Cov tshuaj tshwj xeeb qee zaum nrog cov zaub mov txawv yog siv los ua kua nplaum. Txhua tsob nroj siv zog los tsim nws tus kheej txoj hauv kev los ua cov nplaum nplaum uas yuav ua rau cov ntawv plywood sawv tawm ntawm cov neeg coob coob ntawm cov neeg sib tw. Piv txwv li, ib co compositions twb nyob rau hauv cov qauv muab cov nyhuv ntawm lamination nrog phenol-formaldehyde resins. Tab sis feem ntau xyaum yog kev tsim cov laminated plywood nrog daim ntawv thov ntawm daim ntawv-resin zaj duab xis, uas ua rau cov khoom muaj zog thiab ntau resistant rau noo noo nqus.

Cov ntaub ntawv yog siv rau ntawm cov tshuab tshwj xeeb uas siv lub nruas cylindrical corrugated. Lamellas kho nrog kua nplaum raug xa mus rau ib txheej, qhov twg veneer pob raug tsim. Ntawm no, cov nplooj ntawv yog raug rau txias pre-pressing, uas yog ib tug npaj theem ua ntej gluing zaum kawg. Cov nplooj ntawv yog coj los ua ke perpendicular rau ib leeg. Cov txheej txheem gluing tseem ceeb yog siv lub hydraulic kub xovxwm muab nrog cov khoom siv thauj khoom. Cov ntawv plywood tiav yog hnub nyoog rau 24 teev hauv kev cob qhia.

Ua plywood nrog koj tus kheej tes

Lub tshuab tsim cov plywood hauv tsev tsis yog qhov txawv ntawm lub Hoobkas. Tsawg kawg,tib yam kev ua thiab kev npaj ua haujlwm, xws li stripping, txiav thiab gluing, yog ua tiav. Cov ntaub ntawv raw cov ntaub ntawv kuj tseem siv tau (zoo dua los ntawm birch), tom qab ntawd sawing thiab tev yog nqa tawm - kev ua haujlwm nyuaj tshaj plaws rau kev ua tes ua, uas tuaj yeem hloov nrog cov phiaj tshwj xeeb hauv cov ntim me me. Yog hais tias nyob rau hauv-line ntau lawm yuav tsum tau, ces nws yog zoo dua los npaj ib tug me me conveyor kab. Piv txwv li, me me plywood factories nyob rau hauv ib cheeb tsam me me yog muab nrog cov kab sib txuas nrog cov khoom siv uas tuaj yeem ua tev, sawing, tev, ziab, kua nplaum thiab xuab zeb ua haujlwm.

daim ntaub ntawv Plywood

Nov yog cov khoom siv ntau yam uas pom siv nyob rau hauv ib puag ncig kev tshaj lij thiab tsev neeg. Tej zaum qhov loj tshaj plaws ntawm plywood yog siv nyob rau hauv kev tsim kho thiab rooj tog ntau lawm. Hauv tsev, xws li cov ntawv tuaj yeem siv rau hauv kev tsim sab hauv, kho kom zoo nkauj sab hauv thiab tsev neeg xav tau. Kev tsim khoom ntawm plywood nrog kev txhim kho kev ua haujlwm thiab lub cev zoo tso cai rau peb muab cov khoom tsim nyog rau kev lag luam tsheb thiab tsheb thauj mus los. Ib zaug ntxiv, qhov nrov ntawm cov khoom siv no yog vim nws cov nqi qis thiab kev ua haujlwm zoo. Plywood tsis zoo li qub piv rau cov hlau thiab fiberglass, tab sis nws yog qhov txaus nyiam dua rau cov khoom siv chipboard. Qhov tsuas yog qhov kev txwv loj ntawm kev siv cov ntawv zoo li no yog qhov muaj tshuaj lom neeg tsis zoo ntawm cov nplaum nplaum hauv cov qauv. Ntawd yog, peb tsis tau hais txog kev huv ib puag ncig ib puag ncig.

Zaj lus

Hnub no, plywood ntau lawm technologies yog heev standardized thiab optimized. Cov neeg tsim khoom ntawm cov txheej txheem rau kev tsim cov khoom siv no tau tsom mus rau kev sib koom ua ke cov txheej txheem tiv thaiv tshiab thiab impregnations uas tshem tawm lub cev tsis zoo ntawm tsob ntoo nws tus kheej. Txawm li cas los xij, tus nqi ntawm cov ntawv hloov kho tau nce ntau heev. Los ntawm txoj kev, niaj hnub no kev tsim cov plywood rau qhov nruab nrab nws txawv ntawm 300 mus rau 600 rubles ib daim ntawv. Widescreen panels tuaj yeem raug nqi txawm tias 1000 rubles thiab ntau dua. Nyob rau tib lub sijhawm, kev suav nrog kev ua haujlwm ntxiv ntawm kev sib tsoo high-precision abrasive los yog hluav taws-tiv thaiv impregnation hauv cov txheej txheem thev naus laus zis nce tus nqi lossis lwm 10-15%. Tsis tas li ntawd, ntau yuav nyob ntawm seb hom ntoo siv, qhov zoo ntawm tev thiab hom veneer blocks rau veneer.