PMMA

PMMA yog lub pob tshab, tawv tawv uas paub txog nws qhov pom kev pom tseeb zoo, huab cua tsis kam, thiab UV stability. Nws yog lub teeb yuag, tsis yog - tshuaj lom, thiab yooj yim rau kev tsim, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov uas xav tau lub iav- zoo li lub ntsej muag, xws li teeb pom kev zoo, tsheb lo ntsiab muag, khoom siv kho mob.

Cov lus zoo.
Cov piv txwv zoo dua.

 

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Cov ntsiab lus

1.Qhov zoo ntawm PMMA Txhaj Moulding

2.Kev siv ntawm PMMA Moulded Parts

3.Cov lus qhia kom zoo dua nto tiav

4.Optimal Moulding Parameters

1. Qhov zoo ntawm PMMTxhaj Molding

Optical clarity thiab pob tshab, feem ntau siv los ua iav hloov

Zoo huab cua thiab UV tsis kam, tswj kev ua haujlwm sab nraum zoov

Lub teeb yuag, nruj, tsis yog - lom, thiab yooj yim rau txheej txheem

PMMA txhaj tshuaj molding yog dav siv nyob rau hauv cov lus qhia, teeb pom kev zoo npog, lo ntsiab muag, kos npe, thiab tiv thaiv vaj huam sib luag

Peb tau tsim PMMA molded Cheebtsam rau:

Mechanical khoom: customized PA Cheebtsam thiab haumxeeb qhov chaw tailored rau ntau haiv neeg daim ntaub ntawv.

2. Daim ntawv thov teb ntawm PMMA Txhaj Moulding

Kev Qhia & Kos Npe: LED npog, zaub vaj huam sib luag, teeb pom kev zoo

Teeb pom kev zoo: teeb npog, lo ntsiab muag, tiv thaiv vaj huam sib luag

Consumer & Industrial Products: Transparent vaj tse, tiv thaiv cov ntxaij vab tshaus, optical Cheebtsam

3. Yuav ua li cas kom tau ib tug zoo nto tiav rau PMMA Txhaj Moulded Parts

Cov tsos ntawm PMMA qhov chaw nyob ntawm cov pwm zoo, tswj qhov kub thiab txias, thiab kev ua haujlwm ruaj khov. Txij li PMMA yog rhiab heev rau cov cua sov thiab shear, kev tswj xyuas meej thaum txhaj tshuaj molding yog qhov tseem ceeb los tswj kom pom tseeb, tsis txhob muaj qhov kub hnyiab, thiab tiv thaiv qhov tsis xws luag.

3.1 Pwm Zoo

Kab noj hniav tag: khawb los yog qhov chaw ntxhib txo qhov pom kev pom tseeb. Polished los yog coated kab noj hniav yog siv rau glossy pob tshab qhov chaw.

Kev huv huv: Cov khoom paug tuaj yeem ua rau muaj streaks, cloudiness, los yog npuas. Kev tu pwm tsis tu ncua yog tsim nyog.

Draft lub kaum sab xis: Tsim cov qauv tsim nyog tiv thaiv cov cim rub thiab pab tso tawm qhov tsis muaj khawb.

Lub tshuab ua pa: qhov cua tsis zoo tuaj yeem ua rau hlawv cov cim, npuas, lossis cov kab ntws. Optimized vents kom du ntws thiab tsawg cua ntxiab.

Lub rooj vag thiab tus neeg khiav dej num tsim: Kev hloov pauv tau zoo thiab lub rooj vag loj kom txo qis kev ntxhov siab, khaws cia qhov muag pom tseeb thiab sib sau ua ke.

3.2 Moulding Parameters

Kev txhaj tshuaj nrawm: Kev nrawm nrawm tiv thaiv cov kab ntws, cov cim kev ntxhov siab, lossis cov nplaim taws. Kev nrawm dhau yuav ua rau muaj kev ntxhov siab sab hauv thiab txo qhov pom tseeb.

Lub tshuab cua txias: Cov cua txias tsis sib xws txo qhov kev sib tw, tshwj xeeb tshaj yog rau cov tuab lossis cov khoom siv. Maj mam txias khaws cia kom pom tseeb.

Tuav siab & lub sijhawm: Cov chaw tsim nyog tiv thaiv cov cim dab dej thiab tswj qhov kev ruaj ntseg.

Melt kub: PMMA muaj qhov ua haujlwm nqaim; overheating tuaj yeem ua rau degradation, yellowing, lossis txo cov khoom kho qhov muag.

3.3 Cov khoom siv raw

Granule uniformity: Raws li qhov loj me me kom ntseeg tau tias cov melting du thiab zoo ib yam ua tiav.

Cov ntsiab lus noo noo: PMMA tsawg dua hygroscopic tshaj PA tab sis tseem yuav tsum tau qhuav kom tsis txhob muaj npuas lossis voids.

Additive thiab colorant dispersion: Tsis zoo dispersion ua rau streaks, cloudiness, los yog xim tsis sib xws.

Impurities: Cov khoom paug tuaj yeem txo cov pob tshab lossis ua rau cov ntsiab lus tsis muaj zog; cov ntaub ntawv yuav tsum tau ua tib zoo tshuaj xyuas.

Cov ntsiab lus rov ua dua: Cov khoom siv PMMA ntau dhau tuaj yeem txo qhov pom kev pom tseeb lossis kev ua haujlwm zoo; tus piv yog tswj kom zoo zoo.

4.Qhov zoo tshaj plaws rau PMMA Txhaj Moulding

4.1 Cov Khoom Tseem Ceeb

Thermal Sensitivity: PMMA muaj qhov nqaim ua haujlwm kub (≈200-250 degree). Overheating tuaj yeem ua rau yellowing, degradation, lossis txo qhov pom qhov pom tseeb.

Flow Cwj Pwm: PMMA yog shear-sensitive; Nruab nrab txhaj tshuaj ceev thiab siab ua kom zoo sib xws, tiv thaiv kev ntxhov siab sab hauv, thiab tswj kom pom tseeb.

Shrinkage Rate: 0.2-0.6% nyob ntawm qhov tuab, tso cai rau qhov tseeb qhov tseeb.

Tshuab Hom: Ntsia hlau- hom txhaj tshuaj tshuab nrog kev tswj qhov kub thiab txias nyob rau hauv lub thoob thiab pwm zones raug pom zoo kom tsis txhob overheating thiab khaws cov khoom kho qhov muag.

Txhaj ntim: Qhov zoo tshaj plaws 50-70% ntawm lub tshuab muaj peev xwm txo tau lub sijhawm nyob thiab txo qhov kev ntxhov siab thermal.

Runner Design:

- Tus khiav tseem ceeb: Tsawg dua lossis sib npaug li 120 mm

- Sub- khiav: 5–10 mm

- Kev hloov pauv tau yooj yim txo qis qis thiab ua kom pom tseeb.

Ejection Force: Lub zog nruab nrab pom zoo; Kev quab yuam ntau dhau tuaj yeem khawb lossis kev ntxhov siab pob tshab.

Ncej -Kev Kho Mob: Kev kho qhov kub ntawm 80-90℃rau 1-2 teev txo qis kev ntxhov siab sab hauv, txo qhov kev ua tsov rog, thiab khaws cia qhov pom tseeb.

4.2 Yam Moulding Parameters

Cov txheej txheem molding rau PMMA qhov sib txawv nyob ntawm qib (general-lub hom phiaj, cuam tshuam- hloov kho, lossis xim), qhov tuab, thiab xav tau qhov pom tseeb. Txij li PMMA yog cua sov- thiab shear- rhiab heev, tswj qhov kub thiab txias, kev txhaj tshuaj me me, thiab kev ua kom txias txias yog qhov tseem ceeb los tiv thaiv yellowing, kev ntxhov siab sab hauv, warping, lossis deg tsis zoo.

Cov kev ntsuas no ua raws li cov lus qhia dav dav. Zoo- yuav tsum tau kho raws li ib feem geometry, phab ntsa thickness, cov ntsiab lus xim, pwm tsim, thiab cua txias system kom ua tiav qhov zoo tshaj plaws, qhov tseeb, qhov pom tseeb, thiab xim sib xws.