30% iav fiber ntxiv txhawb nqa pa6 hloov kho
30% iav fiber ntxiv txhawb nqa pa6 hloov tshiab yog ib cov khoom zoo tshaj plaws rau kev ua cov cuab yeej siv fais fab, cov cuab yeej siv hluav taws xob, chaw thiab tsheb. Nws cov cuab yeej siv tshuab, seem ruaj khov, tshav kub kuj tau txhim kho, thiab kev ua kom muaj zog tau txhim kho, thiab cov nyhuv hloov kho yog qhov pom tseeb tshaj plaws.
Kev txhaj tshuaj molding cov txheej txheem ntawm 30% iav fiber ntxiv txhawb nqa pa6 chips yog ntxhia zoo ib yam li uas tsis muaj kev txhawb zog, kev txhaj tshuaj kom muaj zog yuav tsum tau nce ntxiv. Cov ntsiab lus ua tau muaj raws li hauv qab no:
1. Lub thoob txwv kub ntawm 30% iav fiber ntau ntxiv txhawb nqa pa6 yog yooj yim kom nce ntawm 10-40 ℃. Lub thoob chim xaiv rau txhaj tshuaj molding ntawm PA6 hloov pauv yog cuam tshuam nrog cov khoom ntawm cov chips lawv tus kheej, khoom siv thiab cov duab zoo ntawm cov khoom. Cov khoom kub dhau yog qhov yooj yim los ua kom muaj qhov chaw xim, nkig hlau thiab lwm yam tsis txaus ntseeg yog qhov yooj yim rau cov pwm thiab ntaus nrig thiab ntsia hlau. Tus qis tshaj plaws yaj kub ntawm PA6 yog 220C. Vim tias nws zoo fluidity, nylon ntws sai sai thaum qhov kub tshaj nws li melting point. Lub fluidity ntawm 30% iav fiber ntau ntxiv txhawb nqa cov ntaub ntawv tsis zoo tshaj li qhov ntawm cov ntaub ntawv ntshiab pa6?
2. 30% iav fiber cuam tshuam txhawb pa6 ua pwm ntsuas kub yog tswj hwm ntawm 80-120C. Cov pwm kub muaj qee yam cuam tshuam ntawm crystallinity thiab moulding shrinkage, thiab ntau yam pwm kub yog 80-120 ℃. Cov khoom uas muaj cov phab ntsa siab siab yuav tsum xaiv cov khoom kub siab, uas muaj cov khoom siv tsis zoo thiab muaj cov dej nqus loj hlob thiab nce cov dej tsis haum. Cov khoom rho tawm yuav tsum xaiv cov cim kub tsis muaj zog, uas muaj tsawg crystallinity, zoo toughness, siab elongation thiab txo qis shrinkage. Yog tias cov phab ntsa tuab yog ntau dua 3mm, nws raug nquahu kom siv cov pwm tsawg tsawg ntawm 20 ℃ rau 40 ℃. Lub pwm kub ntawm 30% iav cov khoom siv uas yuav tsum tau siab dua 80 ℃.
3. Lub phab ntsa tuab ntawm 30% iav fiber ntau ntxiv txhawb nqa 6 cov khoom lag luam yuav tsum tsis txhob tsawg dua 0.8mm. Qhov chaw nyob ntev ratio ntawm PA6 yog nruab nrab ntawm 150,200. Lub phab ntsa tuab ntawm cov khoom yuav tsum tsis txhob qis dua li ntawm 0.8mm. Feem ntau, cov kev xaiv yog nruab nrab ntawm 1 ~ 3.2mm. Lub shrinkage ntawm 30% iav fiber ntxiv txhawb nqa pa6 cov khoom muaj feem xyuam rau nws cov phab ntsa tuab. Lub thicker lub phab ntsa tuab, qhov ntau dua qhov kev ntsws.
4. Lub tso cua tshuab cua daj cua dub yuav tsum tau tswj hwm hauv qab 0.025mm. Lub Overflow ntug tus nqi ntawm 30% iav fiber ntxiv txhawb nqa pa6 yog li 0.03mm, yog li lub tso pa tawm hauv qab 0.025mm.
5. Lub rooj vag lub taub yuam yuav tsum tsis pub tsawg tshaj 0.5 kilott (t yog qhov tuab ntawm cov yas). Nrog lub rooj tog raj hauv qab, qhov tsawg kawg ntawm lub rooj vag yuav tsum yog 0.75mm.
6. Cov shrinkage ntawm 30% iav fiber ntau ntxiv txhawb nqa pa6 cov khoom tuaj yeem raug txo kom 0.3%.
Qhov kev txiav tawm ntawm PA6 cov khoom siv ntshiab yog nruab nrab ntawm 1% thiab 1.5%, thiab cov tshuaj shrinkage tuaj yeem txo kom txog 0.3% tom qab ntxiv 30% khob fiber ntau ntxiv. Cov kev paub ua qhia tau hais tias cov iav fiber ntau ntxiv, qhov me me cov voulding shrinkage ntawm PA6 Resin yog. Txawm li cas los xij, nrog rau qhov nce ntawm fiber ntau, nws tseem yuav ua rau nto fiber ntau, kev sib xyaw ua ke thiab lwm yam kev cuam tshuam, 30% iav iav fiber ntau ntxiv.
7. 30% fiber ntau fiber ntau txhawb nqa cov ntaub ntawv siv hluav taws yuav tsum tsis txhob siv ntau dua 3 zaug. 30% iav fiber ntxiv txhawb nqa pa6 tsis muaj cov khoom siv ua dua tshiab, nws yog qhov yooj yim los ua rau cov khoom siv tshuab lossis cov khoom siv tas mus li, cov ntaub ntawv thov yuav tsum tau tswj hwm qis dua 25%, txwv tsis pub Nws yuav hloov pauv hauv cov txheej txheem txheej txheem, thiab kev kho kom qhuav yuav tsum tau nqa tawm ua ntej cov ntaub ntawv rov ua haujlwm thiab cov ntaub ntawv tshiab.
8. Tus nqi ntawm pwm tso tawm tus neeg sawv cev me me thiab hnav khaub ncaws. Tus neeg sawv cev tso tawm ntawm 30% iav fiber ntau ntxiv txhawb nqa mus rau PaP stearate thiab cov roj tso tawm dawb, lossis nws tuaj yeem sib xyaw ua ke tuaj yeem txhim kho thiab tshem tawm qhov tsis xws luag xws li npuas. Kev siv yuav tsum yog cov me thiab hnav khaub ncaws, yog li kom tsis txhob ua kom tsis xws luag ntawm cov khoom.
9. Tom qab cov khoom yog tawm ntawm cov pwm, muab tso rau hauv dej kub kom txias maj mam. Vim tias cov iav fiber yuav orient raws cov ntws tawm hauv kev txhaj tshuaj molding cov txheej txheem, cov tshuaj tsuag yuav ua kom zoo dua nyob rau hauv kev taw qhia kev qhia, ua rau muaj kev tawm tsam thiab ua yeeb yam ntawm cov khoom lag luam. Yog li ntawd, hauv cov pwm tsim, txoj haujlwm thiab cov duab ntawm lub rooj vag yuav tsum tsim nyog. Qhov kub ntawm cov pwm tuaj yeem raug tsa nyob hauv cov txheej txheem, thiab cov khoom yuav tsum muab tso rau hauv dej kub kom maj nrawm.
10. 30% khob fiber ntau txhawb nqa pa6 qhov chaw uas siv rau hauv qhov kev kub siab ib puag ncig yuav tsum muaj moisturized. Cov av noo tswj txoj kev ntawm cov dej npau npau lossis cov poov xab ua yeeb yam diacetate yuav siv tau. Cov dej noo noo ntawm cov dej npau txo cov dej ntawm 65%% kom ua tiav qhov sib npaug noo noo noo kev nqus. Kev kho ntsuas kub ntawm poov tshuaj acetate aqueous kua (qhov sib piv ntawm cov poov tshuaj acetate rau dej yog 1.2515, boiling point 121c) yog 80-100potassium acetate kev daws teeb meem. Lub sijhawm kho mob tsuas yog nyob ntawm cov khoom tuab ntawm phab ntsa tuab, thaum lub phab ntsa tuab yog li 2 teev rau 8 teev rau 16-18 teev rau 6mm.
Lub Sijhawm Post: 08-12-22