2024 Tus sau: Beatrice Philips | [email protected]. Kawg hloov kho: 2024-01-18 12:13
Aviation plywood, cov khoom siv ua tau zoo tshaj plaws, ib zaug tau tsim tshwj xeeb rau kev tsim dav hlau . Niaj hnub no nws tau siv tau zoo hauv lwm qhov chaw ib yam nkaus - los ntawm kev tsim cov khoom plig rau kev tsim cov rooj tog. Nws tsim nyog kawm paub ntau ntxiv txog qhov twg BS tsis muaj dej plywood nrog tuab ntawm 1-2 thiab 3 hli, nrog rau lwm hom raws li GOST, tau siv.
Nqe lus piav qhia
Cov dav hlau plywood tau tsim raws li GOST 102-75 tus qauv thiab yog ib hom khoom siv ntau txheej ntawv ua los ntawm cov ntoo ntoo . Cov nab npawb ntawm cov txheej txheem hauv ib txwm tsis txawv. Yam tsawg kawg ntawm cov khoom tuab yog 0.4 hli, qhov siab tshaj yog 12 hli.
Cov neeg tsim khoom niaj hnub no qee zaum hais txog cov ntoo plywood ua av raws li delta-wood (DSP-10), txij li nws kuj tseem siv cov yas ntoo txheej txheej ntawm cov ntawv.
Thaum tsim khoom, cov khoom siv tau pleev xim rau hauv txheej nrog cov nplaum tshwj xeeb raws li phenol-formaldehyde, kev ua haujlwm tau ua tiav nyob rau hauv qhov siab ntawm 6 atmospheres thiab kub txog +270 degrees Celsius . Tom qab ntawd cov veneer tau npaj ua ke nrog bakelite sib xyaw. Hauv kev tsim cov dav hlau plywood, txoj cai ntawm kev sib koom ua ke sib luag yog siv los txhawb nws cov qauv. Hauv txhua txheej tshiab, cov fibers tau nteg hla dhau ib qho dhau los, ua kom ntseeg tau tias tsim tau lub cev hloov pauv tau, tiv taus kev nyuaj siab.
Qhov loj me me uas haum rau dav hlau plywood tau teeb tsa hauv qib hauv qab no: ntev 1000-1525 hli, dav 800-1525 hli . Kev sib txawv ntawm qhov tsis nce lossis nqis hauv qhov ntau ntawm 25 hli raug tso cai. Qhov nrov tshaj plaws yog daim duab plaub fab ntawm cov ntawv 1525 × 1525 mm, 1270 × 1270 mm.
Cov dej noo ib txwm muaj ntawm cov khoom tsis ntau tshaj 5-9%. Plywood yuav tsum muaj cov plaub fab txiav plaub fab, tiaj tus yam tsis muaj qhov cuam tshuam geometric qhia meej.
Npav
Aviation plywood yog cim raws li cov yam ntxwv ntawm cov nplaum siv. Ntawm cov ntau yam tam sim no ntawm cov khoom siv no, cov hauv qab no tuaj yeem sib txawv.
- BS-1 … Txhawm rau txuas cov veneer txheej hauv hom dav hlau plywood, phenol-formaldehyde resins ua raws li GOST 20907-75 hauv cov kua ua kua (SFZh-3011) tau siv. Qhov loj me me rau daim ntawv tuab ntawm hom khoom no yog los ntawm 3 txog 12 hli. Qhov no yog lub dav hlau plywood tuab tshaj plaws uas tuaj yeem tiv taus qhov hnyav.
- BP-A / BP-V . Plywood ntawm hom no txawv tsuas yog siv ntau hom bakelite zaj duab xis rau gluing cov khoom. Cov khoom lag luam muaj cov txheej txheem tib yam: 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm. Lwm qhov tuab tsis muaj.
- BPS-1V . Hom khoom siv no muab rau kev siv cov nplaum sib txawv, nyob ntawm qhov tuab ntawm daim ntawv. Cov khoom lag luam txog li 3 hli suav nrog yog glued nrog B-hom bakelite zaj duab xis. Cov ntawv tuab hauv qhov ntau ntawm 4-6 hli tau txuas nrog SFZh-3011 cob. Sab nrauv ntawm cov ntawv txheeb yog bakelite.
Rau plywood ntawm txhua lub npe, qee tus naj npawb ntawm cov veneer nplooj ntawv tau teeb tsa hauv qhov muaj pes tsawg leeg. Hauv qhov ntau ntawm cov tuab 1-2 hli, muaj 3. Hauv cov qauv ntau thiab tsawg los ntawm 2, 5 txog 6 hli-5 txheej (tshwj tsis yog BPS-1V, qhov twg muaj 7 lossis 9). Tus lej siab tshaj plaws ntawm cov neeg sib tshuam hauv 12 hli plywood yog los ntawm 9 txog 11.
Kuj tseem muaj kev faib ua qib 1 thiab 2 .… Lawv txiav txim siab qhov ua tau zoo ntawm cov khoom kom tsim nyog tau txais kev pom zoo. Cov khoom siv hauv qib ib ntawm txheej txheej sab nrauv yuav tsum tsis txhob cuam tshuam ib nrab, cov pob txha tsis sib txuas, tawg, tawg, tsaus ntuj zuj zus, pab pawg leeg ntshav thiab cov cim ntawm lawv. Cov kab mob ntawm cov kab mob hu ua fungal, nrog rau ib qho kev ua tsis raug thaum txiav ntoo, yuav tsum raug cais tawm: cov kab me me, khawb, ua kom puas.
Cov ntawv tsis zoo raug txiav txim siab los ua cov ntawv uas muaj ib nrab ntawm qhov tsis muaj zaj duab xis bakelite lossis impregnation, suav nrog kev txawv teb chaws hauv cov qauv ntoo.
Cov cheeb tsam ntawm kev siv
Aviation waterproof plywood yog siv niaj hnub no tsis yog tsim thiab tsim cov dav hlau. Nws cov khoom tau txais txiaj ntsig zoo hauv lwm yam haujlwm. Cov khoom siv tau dav tshaj plaws hauv cov hauv qab no.
Kev tsim cov twj paj nruas … Ntawm no, lub zog yam ntxwv thiab kev tiv thaiv ya raws ntawm cov khoom, ua ke nrog lub suab zoo, yog qhov xav tau zoo.
Kev Nkoj Nkoj … Cov khoom siv yog tsim rau kev tsim cov nkoj loj, siv hauv cov khoom ntawm daim tawv nqaij sab hauv. Ib sab ntawm bakelite tsis ntshai tiv nrog dej hiav txwv, yuav luag tsis khaws cov dej noo txawm tias siv hauv chav ntub.
Tsim thiab tsim kho . Thaum tsim cov phiaj xwm ntawm tsev, nws yog ib qho tseem ceeb heev los tsim cov qauv ruaj khov nrog qhov hnyav me me, yooj yim thauj thiab nthuav tawm. Aviation plywood ua tau raws li txhua qhov kev xav tau no, nws yooj yim siv thiab yooj yim mus yuav.
Kho kom zoo nkauj sab hauv . Qee qhov xwm txheej, nws yog cov ntaub ntawv uas sib xyaw cov khoom yas thiab cov ntoo ntuj uas dhau los ua qhov kev daws teeb meem nkaus xwb.
Hauv kev tsim dav hlau, tshwj xeeb bakelite plywood tau siv txij li hnub gliding, muab lub zog txaus, lub teeb thiab ua kom ntev ntawm cov ntaub qhwv. Nws tau siv rau sab nrauv thiab sab hauv ntawm lub cev dav hlau, muab cov qauv tsim nyog rau cov khoom siv tshwj xeeb khoov cov cuab yeej.
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