Grooved ntoo - yas yas, uas yog cov khoom siv uas zoo nkauj heev zuag qhia tag nrho cov nyhuv zoo nkauj. Kab lus no yuav tham txog cov txheej txheem synthesis ntawm cov khoom siv roj av, thiab cov txheej txheem moulding, txhawm rau muab kev siv cov txheej txheem rau kev tsim khoom.
I. Raw cov khoom xaiv thiab kev faib tawm
Cov ntaub ntawv nyoos ntawm grooved ntoo - cov hmoov av (xws li cov hmoov av (xws li cov khoom siv ntoo thiab cov roj av; cov nyiaj yas rau 30% -50%, muab cov khoom siv sib xyaw ua ke ntawm cov khoom lag luam thiab cov tshuaj tua kab mob ntawm cov khoom lag luam thiab cov tshuaj tua kab mob ntawm cov khoom lag luam. Piv txwv li, siab-ntom polyethylene (HDPE) txhim kho cov kev cuam tshuam los ntawm cov ntaub thaiv ntoo, thaum muaj kev sib cais ntawm cov ntoo kom haum thiab txhim kho cov kev sib koom ua ke ntawm lub zog ntawm cov composite.
II.Mixing Txheej Txheem
Kev sib xyaw yog cov kauj ruam tseem ceeb nyob rau hauv synthesis ntawm cov ntoo - yas yas, cuam tshuam nrog kev sib txuam thiab kev ua tau zoo ntawm cov khoom siv. Ua ntej, cov ntoo fiber muaj qhuav, feem ntau rau cov ntsiab lus ya raws hauv qab 2% los tiv thaiv kev ua pa npuas thiab tsis muaj kev cuam tshuam los ntawm ya raws thaum siab- kub ua. Cov ntoo qhuav, cov yas ua kom pom, thiab cov quav ntxiv yog tom qab ntawd tov cov tshuaj lom neeg ntawm 80-20℃rau kom meej dispersion txhua yam.
Coupling cov neeg sawv cev ua si ib lub luag haujlwm tseem ceeb hauv kev sib xyaw ua ke. Lawv txhim kho cov interfacial bonding ntawm cov ntoo fiber thiab cov yas matrix, txhim kho cov khoom siv tshuab ntawm cov composite. Piv txwv li, txiv neej anhydride - grathethylene (mape} yas masters, mape) muaj zog thiab lub zog nyob rau hauv cov khoom kawg.
III. Moulding txheej
Grooved ntoo - phab ntsa yas yas phab ntsa feem ntau tsim kev siv cov txheej txheem Extrusion.
Cov kauj ruam tshwj xeeb yog raws li hauv qab no:
1. Twin {{- ntsia hlau Extrusion: Cov khoom siv raw rau hauv lub ntxiab thiab yas ntawm cov kub ntawm 160℃thiab 200 degree. Lub Ntsia Hlau yog feem ntau tswj tau ntawm 80 thiab 150 RPM kom ua kom meej meej kev sib xyaw thiab tiv thaiv kev ua kom muaj kev sib xyaw.
2. Cov khoom siv pwm: cov khoom siv molten tau muab tso tawm los ntawm kev cai pwm. Cov pwm tsim yuav tsum suav nrog cov zawj los ua kom tau raws li cov cai teeb. Qhov zawj tob thiab qhov sib txuas tuaj yeem hloov kho raws li daim ntawv thov, nrog cov zawj raug ntawm 20-50 hli.
3. Cua txias thiab semi -} Cov khoom tiav tau txias tau txias siv dej lossis cua txias system los tiv thaiv deformation. Cov dej txias txias yog feem ntau tswj nruab nrab ntawm 15℃thiab 30℃kom ntseeg tau qhov ruaj khov.
IV. Post - ua thiab ua kom zoo dua qub
Tom qab sib sau, cov grooved ntoo - Yas Yas Phab Ntsa Thiaj Tshaj Tawm nrog kev txiav, txiav txim siab, thiab kev kho kom nto. Txiav qhov raug ncaj qha cuam tshuam cuam tshuam cuam tshuam, thiab cnc txiav cov cav tov yog feem ntau siv los xyuas kom meej tus nqi tsawg dua 1 hli. Cov kev kho saum npoo xws li xws li Lamination, UV txheej, lossis pob zeb tuaj yeem txhim kho kev kho kom zoo nkauj thiab kos} cov khoom tiv thaiv ntawm cov ntaub qhwv.
Tsis tas li ntawd, qee qhov siab -}} {{{{{{1} {{1} {{1} {{1} {{1} {{1} {} {}
V. Xaus
Cov synthesis ntawm grooved ntoo {{Yas fallboard yuav suav nrog ntau cov kauj ruam, suav nrog cov khoom siv ua ntu zus, thiab tshaj tawm {{1} {} kev ua. Txhua kauj ruam cuam tshuam cuam tshuam kev ua tau zoo ntawm cov khoom kawg. Los ntawm kev xaiv cov txheej txheem tsis zoo xws li kev xaiv cov khoom siv, sib tov nrog cov neeg ua haujlwm zoo, thiab cov phooj ywg ib puag ncig, ua kom zoo nkauj, thiab siv tau. Nyob rau hauv lub neej yav tom ntej, nrog kev nce qib hauv cov ntaub ntawv txuj ci, cov cuab yeej hluavtaws hluavtaws yuav yog ua kom zoo nkauj ntxiv, nthuav lawv daim ntawv thov hauv cov kws kho kom zoo nkauj.