Thermoplastic Txhaj

Thermoplastic Txhaj Moulding-feem ntau hu ua yas txhaj tshuaj molding- yog ib txoj hauv kev ua tau zoo heev rau kev tsim cov khoom yas thiab cov khoom ntim loj. Nws qhov txiaj ntsig tseem ceeb yog nyob rau hauv kev muaj peev xwm rov ua dua thiab ua kom cov khoom siv thermoplastic tsis hloov pauv lawv cov khoom siv. Qhov no ua kom ntseeg tau tias txhua qhov tsim khoom muaj qhov tseeb qhov tseeb, lub cev muaj zog zoo ib yam, thiab ua kom du, glossy tiav, ua cov txheej txheem zoo rau cov ntawv thov uas xav tau qhov tseeb thiab kev ntseeg tau.

Thermoplastic txhaj tshuaj molding yog ib qho kev hloov pauv kev tsim khoom uas cov thermoplastic polymers tau yaj, txhaj rau hauv pwm, thiab txias los ua cov khoom seem. Txoj kev no yog qhov tseem ceeb hauv kev tsim ntau yam khoom siv yas-los ntawm cov khoom siv hauv tsev yooj yim mus rau cov tsheb loj thiab cov khoom kho mob.

1. Kev npaj khoom siv

High - cov txiaj ntsig tau zoo pib nrog kev npaj cov khoom siv ceev faj.

Qhuav pellets: Cov dej noo yuav tsum tau muab tshem tawm ua ntej thauj cov pellets rau hauv lub hopper, vim tias cov dej seem seem tuaj yeem ua rau muaj qhov tsis xws luag thaum melting thiab cuam tshuam lub zog los yog cov tsos ntawm cov khoom kawg.

Kev tuav cov khoom: Cov pellets tom qab ntawd muab tso rau hauv lub tshuab lub hopper rau kev ua haujlwm.

2. Melting thiab txhaj tshuaj

Sab hauv lub tshuab txhaj tshuaj molding:

Melting: Thermoplastic pellets yog rhuab nyob rau hauv kev tswj kub thiab siab kom txog thaum lawv ua molten.

Kev tswj kub: Txhua hom resin muaj qhov zoo tshaj plaws melting point; Lub thoob qhov kub thiab txias kom zoo viscosity thiab ntws.

Kev txhaj tshuaj siab: feem ntau yog li ntawm 500 txog 1500 bar, qhov siab no txiav txim siab qhov tseeb ntawm qhov ntev thiab qhov chaw tiav.

Nozzle kub: Khaws kom ntseeg tau tias ntws mus rau hauv pwm thiab tiv thaiv kom tsis txhob ntxov ntxov.

Rov qab siab & txhaj ceev: Rov qab siab txhim kho xim dispersion thiab tshem tawm cov huab cua, thaum txhaj tshuaj nrawm cuam tshuam cov qauv sau thiab qhov zoo.

3. Txias thiab tshem tawm

Thaum cov pwm puv lawm:

Txias: Cov yas molten pib solidifying thaum sib cuag nrog lub txias pwm phab ntsa. Lub sijhawm txias yog nyob ntawm qhov tuab thiab cov khoom siv. Kev ua kom txias zoo txo ​​qis lub sijhawm voj voog thaum ua kom muaj kev ruaj ntseg thiab lub zog.

Ejection: Tom qab solidification, cov pwm qhib thiab ejector pins thawb qhov tawm. Lub sij hawm tsim nyog tiv thaiv kev puas tsuaj los yog warping, tshwj xeeb tshaj yog nyob rau hauv precision daim ntaub ntawv xws li ntxig molding.

4. Tshaj tawm -Kev ua haujlwm

Cov kauj ruam kawg txhim kho cov khoom zoo thiab kev ua haujlwm:

Trimming: Tshem tawm cov khoom siv ntau dhau (flash) ua kom cov npoo huv, qhov tseeb qhov ntev, thiab ua raws li kev ua haujlwm siab.

Deg xov: Polishing, texturing, los yog painting ua kom zoo nkauj thiab kev ua tau zoo.

Cov khoom siv rov ua dua tshiab: Cov khoom seem seem thiab cov neeg khiav dej num feem ntau rov ua dua - hauv av thiab sib xyaw nrog cov khoom siv nkauj xwb rau kev tsim khoom ruaj khov.

Lub versatility ntawm thermoplastic txhaj molding yog nyob rau hauv nws lub peev xwm los ua hauj lwm nrog ntau yam khoom, txhua tus muab cov khoom tshwj xeeb thiab cov txiaj ntsig. Qee cov khoom siv feem ntau siv rau cov txheej txheem no muaj xws li polyethylene (PE), polypropylene (PP), polystyrene (PS), polyvinyl chloride (PVC), acrylonitrile butadiene styrene (ABS), polyethylene (ABS), polyethylene (ABS). Cov ntaub ntawv no muaj cov khoom tshwj xeeb uas ua rau lawv haum rau kev siv sib txawv.

PE muaj npe nrov rau nws lub zog thiab ua haujlwm rau cov tshuaj, ua rau nws zoo tagnrho rau cov ntawv thov xws li ntim thiab cov kav dej. PP nthuav qhia tshwj xeeb rau kev tiv thaiv tshav kub thiab pom kev siv dav hauv ntim khoom, cov khoom siv tsheb, thiab cov khoom siv hauv tsev. PS muaj nyob rau hauv ob qho tib si nruj thiab ntxeem tau thiab feem ntau yog siv rau cov khoom siv pov tseg, ntim khoom, thiab rwb thaiv tsev. PVC yog qhov zoo -paub txog nws cov khoom insulating, ua rau nws muaj kev xaiv zoo rau cables thiab thaiv.

ABS yog cov khoom siv muaj zog paub txog nws lub peev xwm los tiv thaiv kev cuam tshuam, ua kom nws zoo - haum rau cov ntawv thov hauv hluav taws xob, qhov chaw pib, thiab cov khoom ua si. Thaum kawg, PET yog cov khoom pob tshab thiab muaj zog uas feem ntau ua haujlwm rau lub raj mis dej haus thiab ntim khoom noj. Hauv cov ntsiab lus, cov ntaub ntawv no qhia txog cov yam ntxwv ntawm kev yooj yim yaj, zoo li tus, solidified, thiab hloov mus rau ntau yam khoom.

Kev tswj xyuas qhov zoo ntawm cov thermoplastic txhaj molding yuav tsum tau qhia kom meej thiab daws qhov teeb meem. Hauv qab no yog cov teeb meem tshwm sim, lawv cov laj thawj, thiab kev kho kom raug:

1. Kev txhaj tshuaj luv luv

Qhov teeb meem: Lub pwm kab noj hniav tsis yog tag nrho.

Ua rau: Tsis tshua muaj kev txhaj tshuaj nrawm / siab, cov khoom siv viscosity siab dhau, lossis tsis txaus lub rooj vag loj.

Kev daws:

Nce kev txhaj tshuaj nrawm lossis siab.

Kho qhov kub thiab txias los txhim kho kev ntws.

Loj lossis hloov kho lub rooj vag tsim.

2. Flash Tsim

Qhov teeb meem: Cov yas ntau dhau los ntawm cov pwm, tsim cov txheej nyias ntawm cov npoo.

Ua rau: Kev txhaj tshuaj ntau dhau, lub zog clamping tsis txaus, lossis pwm puas.

Kev daws:

Txo kev txhaj tshuaj.

Nce los yog xyuas clamping quab yuam.

Tshawb xyuas thiab kho cov pwm uas hnav lossis puas lawm.

3. Warping

Qhov teeb meem: Qhov seem deforms los yog twists thaum lub caij txias.

Ua rau: Tsis sib xws cov cua txias, cov khoom shrinkage variations, los yog pwm kub tsis zoo.

Kev daws:

Xyuas kom zoo ib yam txias thoob lub pwm.

Kho lub sij hawm txias los yog pwm kub.

Xav txog kev siv cov khoom siv nrog qis shrinkage tus nqi.

4. Sink Marks

Qhov teeb meem: me me kev nyuaj siab los yog dimples tshwm rau ntawm qhov chaw.

Ua rau: Tsis txaus cua txias lossis tuav tsis txaus.

Kev daws:

Ua kom lub sijhawm txias.

Nce tuav (packing) siab.

Optimize ib feem tsim kom txo cov seem tuab.

5. Hlawv Cim

Qhov teeb meem: Dub los yog xim av streaks / discoloration ntawm ib feem.

Ua rau: Cov khoom siv overheated, cua ntxiab, lossis kev txhaj tshuaj ntau dhau.

Kev daws:

Tsawg yaj thiab pwm kub.

Txhim kho qhov cua kom tso cov pa tso pa.

Ua kom ceev txhaj tshuaj kom tsis txhob overheating.

Cim npe nrov: Tuam Tshoj thermoplastic txhaj tshuaj manufacturers, lwm tus neeg, Hoobkas