Cov yas txhaj tshuaj molding yog dab tsi?

Kev txhaj tshuaj molding yog ib qho kev siv tau zoo thiab siv dav hauv cov txheej txheem yas molding. Nws siv lub tshuab txhaj tshuaj los txhaj cov khoom yas molten rau hauv pwm, thiab tom qab txias thiab khov, cov khoom yas xav tau tau txais. Cov txheej txheem no tshwj xeeb tshaj yog tsim rau kev tsim khoom loj ntawm cov khoom nrog cov duab nyuaj thiab ua haujlwm tseem ceeb hauv kev ua cov yas. Cov kauj ruam tseem ceeb ntawm kev txhaj tshuaj molding muaj xws li clamping, txhaj tshuaj, siab tuav, txias, pwm qhib thiab tshem tawm cov khoom. Cov kauj ruam no tau ua tiav los ntawm kev tswj xyuas meej ntawm lub tshuab txhaj tshuaj kom paub meej qhov zoo thiab qhov tseeb ntawm cov khoom. Los ntawm kev rov ua cov kauj ruam no, cov txheej txheem txhaj tshuaj molding tuaj yeem ua haujlwm tsis tu ncua thiab ua tau zoo tsim ntau cov khoom yas kom tau raws li qhov xav tau ntawm ntau yam kev lag luam.

Kev txhaj tshuaj molding yog dab tsi?

Cov txheej txheem yas molding feem ntau yog kev txhaj tshuaj molding, uas siv lub tshuab txhaj tshuaj, tseem hu ua lub tshuab txhaj tshuaj molding, los txhaj cov khoom siv yas-feem ntau thermoplastic-rau hauv pwm. Tom qab cov yas solidifies thiab txias, qhov xav tau yog muab rho tawm.

Cov txheej txheem txhaj tshuaj molding muaj rau 6 theem tseem ceeb.

• Clamping: Txhawm rau lav tias cov yas molten tsis xau thaum txhaj tshuaj, cov pwm raug kaw ruaj khov thaum lub sijhawm no.
• Lub pem hauv ntej thiab nram qab ntawm cov khoom yog feem ntau sawv cev los ntawm ob los yog ntau tshaj cov khoom uas ua rau cov pwm.
• Qhov ntev ntawm cov pwm thiab cov yam ntxwv ntawm cov khoom yas txiav txim siab lub zog clamping.
• Txhaj Tshuaj: Siv lub tshuab cua sov, lub tshuab txhaj tshuaj yaj cov khoom yas.
• Kev kub siab yog siv los txhaj cov yas molten rau hauv cov pwm xauv.
• Ob yam tseem ceeb uas cuam tshuam rau cov khoom zoo thiab qhov zoo yog kev txhaj tshuaj siab thiab nrawm.
• Tuav siab: Lub tshuab txhaj tshuaj tswj tau lub siab qee yam tom qab cov khoom siv yas raug txhaj rau hauv pwm. Lub siab no hu ua tuav siab. Kev tuav lub siab pab tau lees paub tias cov yas ntim cov pwm tag nrho thiab ua rau muaj peev xwm ua kom txias-txog qhov shrinkage.
• Cov hom yas, pwm tsim, thiab cov khoom specifications tag nrho cuam tshuam lub sij hawm tuav thiab siab.
• Txias: Txhawm rau tsim cov khoom tsim nyog, cov yas yog txias thiab tawv hauv pwm.
• Cov dej txias hauv cov pwm feem ntau siv los ua qhov no, txawm tias cov kiv cua thiab lwm yam khoom siv cua txias sab nraud kuj tseem tuaj yeem pab tau.
• Cov khoom lag luam kev ua tau zoo thiab qhov tseeb qhov tseeb yog cuam tshuam los ntawm qhov txias txias thiab homogeneity.
• Qhib cov pwm: Cov pwm qhib tom qab cov yas tau ua tiav. Txhawm rau tiv thaiv kev puas tsuaj rau cov pwm thiab cov khoom, cov txheej txheem qhib pwm yuav tsum tau lees tias cov pwm cov khoom txav tau zoo. Cov khoom nyob twj ywm ntawm ib sab ntawm pwm-feem ntau yog cov pwm txav tau sab nraud-tom qab pwm qhib, npaj kom tshem tawm.
• Kev tshem tawm cov khoom: Ib tug neeg hlau lossis tib neeg feem ntau yog siv los tshem tawm cov khoom. Txhawm rau tiv thaiv kev puas tsuaj, xyuas kom cov khoom yog tag nrho ntawm cov pwm ua ntej tshem tawm. Tom qab ua tiav xws li deburring, trimming, thiab lwm yam, tuaj yeem tsim nyog rau cov khoom tshem tawm.

Cov txheej txheem txhaj tshuaj molding tuaj yeem txuas ntxiv tsim ntau cov khoom yas nrog cov ntaub ntawv sib txawv thiab kev ntsuas tseeb los ntawm kev rov ua cov theem uas tau hais tseg. Kev txhaj tshuaj molding muaj qhov chaw tseem ceeb hauv kev lag luam yas vim nws cov kev ua haujlwm siab, qib siab ntawm automation, thiab zoo heev yooj.
 

Dab tsi yog cov yas siv hauv kev txhaj tshuaj molding?

Cov ntaub ntawv yas siv rau hauv cov txheej txheem txhaj tshuaj molding yog dav thiab npog ntau hom. Cov hauv qab no yog qee qhov kev txhaj tshuaj molding yas cov ntaub ntawv thiab lawv cov yam ntxwv:

Thermoplastics:

1. Polyethylene (PE): muaj cov cua kub zoo, tshuaj tiv thaiv thiab cov khoom siv kho tshuab, thiab feem ntau yog siv los ua cov hnab yas ntim, hnab yas, lub raj mis, thiab lwm yam.

2. Polypropylene (PP): muaj cov khoom siv zoo, hnav tsis kam thiab tshuaj lom neeg, thiab siv dav hauv cov khoom siv tsheb, cov thawv yas, cov khoom siv hauv tsev thiab lwm yam.

3. Polyvinyl chloride (PVC): muaj hluav taws xob zoo, huab cua tsis kam thiab hnyav, thiab feem ntau siv los ua cov khoom siv hauv tsev, xov hlau thiab cables, kav dej, thiab lwm yam.

4. Polystyrene (PS): muaj cov pob tshab zoo, lub zog muaj zog thiab cov khoom siv hluav taws xob, thiab feem ntau yog siv los ua cov khob yas, cov khoom ua si, cov ntaub ntawv rwb thaiv tsev, thiab lwm yam.

5. Polycarbonate (PC): muaj zog, siab rigidity thiab zoo heev tshav kub tsis kam, thiab feem ntau yog siv los ua iav, automotive qhov chaw, thiab lwm yam.

6. Polyamide (PA): tseem hu ua nylon, muaj cov khoom siv zoo, hnav tsis kam thiab hnyav ua haujlwm, thiab feem ntau yog siv los ua lub zog, bearings thiab lwm yam.

7. Acrylic (PMMA): Ib qho muaj zog, pob tshab thermoplastic uas yog lwm txoj hauv kev zoo rau iav thiab feem ntau siv rau cov khoom pob tshab hauv kev siv vaj tse thiab teeb pom kev zoo.

8. Acrylonitrile butadiene styrene (ABS): Ib qho engineering-qib thermoplastic paub txog nws lub zog thiab kev cuam tshuam, feem ntau siv hauv tsheb, hluav taws xob thiab lwm yam haujlwm.

Thermosetting plastics:

Polyurethane (PU): Muaj kev hnav zoo, roj ua haujlwm thiab hnyav hnyav, thiab feem ntau yog siv los ua lub tsheb ncua kev kawm, cov ntsaws ruaj ruaj, thiab lwm yam.

Tsis tas li ntawd, muaj lwm yam kev txhaj tshuaj molding khoom xws li polyethersulfone (PES), polyethylene terephthalate (PET), polytetrafluoroethylene (PTFE), txhua tus muaj nws tus kheej lub cev tshwj xeeb thiab daim ntawv thov.

Thaum xaiv cov khoom siv txhaj tshuaj molding, nws yuav tsum tau txiav txim siab raws li qhov yuav tsum tau ua thiab siv ib puag ncig ntawm cov khoom. Piv txwv li, rau cov khoom uas xav tau siab pob tshab, PS lossis PMMA yuav raug xaiv; rau cov khoom uas yuav tsum tau muaj zog thiab kub tsis kam, PC los yog PA tej zaum yuav raug xaiv. Nyob rau tib lub sijhawm, cov yam ntxwv xws li cov nqi khoom siv, kev ua haujlwm ua haujlwm thiab ib puag ncig yuav tsum tau xav txog.

Qhov tseem ceeb ntawm cov pwm

Ib feem tseem ceeb ntawm kev txhaj tshuaj molding yog cov pwm. Ib qho zoo-tsim hollow hlau thaiv nrog ib daim ntawv sab hauv uas phim cov khoom yas tsim sab nraud yog hu ua pwm. Molten yas yog pumped ntawm kev kub siab rau hauv pwm kab noj hniav thaum lub sij hawm txhaj tshuaj molding txheej txheem. Cov khoom yas nws thiaj li tsim tau cov khoom yas uas haum rau qhov zoo ntawm cov pwm kab noj hniav los ntawm kev txias thiab solidification ntawm pwm.


Txhawm rau tiv thaiv cov yas los ntawm cov txheej txheem txhaj tshuaj molding, cov pwm feem ntau muaj ntau yam, xws li cov pwm ruaj khov thiab txav tau, uas raug kaw los ntawm lub tshuab. Txhawm rau lav tias cov khoom tuaj yeem raug tshem tawm ntawm cov pwm thiab ua kom zoo dua qhov adhesion thiab demolding zoo ntawm cov yas, cov pwm saum npoo yog feem ntau kho tshwj xeeb.

Cov kev sib tw khiav thiab lub rooj vag mechanism ntawm cov pwm coj cov yas molten kom nrawm thiab sib npaug ntawm lub qhov. Cov khoom lag luam zoo thiab kev tsim khoom lag luam raug cuam tshuam ncaj qha los ntawm tus qauv khiav, txawm tias nws tsim nyog lossis tsis tsim nyog. Yuav kom tswj tau qhov nrawm ntawm cov yas khov thiab qhov kawg ntawm cov khoom zoo, cov pwm tau txuas ntxiv nrog kev tswj qhov kub thiab txias uas tso cai rau nws kom sov lossis txias siv dej kub, roj, lossis lub rhaub.

Lub tshuab txhaj tshuaj molding tuaj yeem tswj cov pwm qhib thiab kaw thaum lub sijhawm txhaj tshuaj molding txheej txheem. Lub tshuab txhaj tshuaj molding tshuab lub ejector tus pin thawb lub pwm lub ejector phaj kom tso cov pwm pwm los ntawm pwm tom qab cov yas tau tiav lawm. Txhawm rau lav tias cov khoom tuaj yeem demolded tau yooj yim thiab tsis muaj kev puas tsuaj, cov txheej txheem no yuav tsum tau tswj kom raug.

Qhov kev txhaj tshuaj molded yog dab tsi?

Tus khiav, rooj vag, thiab kab noj hniav hauv pwm tsim cov khoom pwm thaum lub sij hawm txhaj tshuaj molding txheej txheem. Melted yas resin yog txhaj rau hauv pwm siv cov pwm khiav, uas txuas nrog lub tshuab txhaj tshuaj moulding nozzle los ntawm cov channel hu ua lub rooj vag. Cov yas molten yog coj los ntawm lub rooj vag mus rau txhua qhov kab noj hniav los ntawm txoj kab ke hu ua tus khiav. Cov yas yog txias thiab tawv rau hauv kab noj hniav los tsim cov khoom tiav, nrog rau txhua kab noj hniav sawv cev rau ib lossis ntau yam khoom.


Pwm muaj ntau cov kab noj hniav sib txuas los ntawm cov neeg khiav dej num feem ntau yog npaj los ua kom cov khoom siv tau zoo thiab txuag nqi. Qhov kev hloov pauv ntawm lub sijhawm nws siv rau cov yas molten los sau txhua lub qhov, txawm li cas los xij, yuav ua rau qee qhov teeb meem yog tias tus khiav ntev mus rau txhua qhov hloov pauv. Piv txwv li, muaj lub caij nyoog uas cov kab noj hniav nyob ze txhim kho qhov tsis zoo los ntawm cov yas yas thaum ntxov, thaum lub qhov nyob deb tsis tuaj yeem muaj cov yas ntim hauv lub sijhawm. Qhov no yuav ua rau muaj kev hloov pauv hauv cov khoom qhov ntev, zoo li, lossis kev ua haujlwm thaum molded rau hauv ntau qhov.

Qhov kev sib npaug ntawm tus neeg sib tw tsim yog feem ntau siv los daws qhov teeb meem no los ntawm kev ua rau tus neeg khiav dej num tib qhov ntev ntawm lub rooj vag mus rau txhua qhov kab noj hniav. Qhov kev tsim no lav qhov sib xws thiab caliber ntawm txhua yam khoom molded los ntawm kev tso cai rau cov yas molten nkag mus rau txhua qhov kab noj hniav ib txhij thiab sau nws sib npaug. Kev txhaj tshuaj pwm tsim yuav tsum tau ua tib zoo xav txog kev sib npaug ntawm cov channel tsim, uas yog qhov tseem ceeb rau kev tsim cov khoom zoo thiab kev tsim khoom.

Kev txhaj tshuaj molding piv txwv

Peb yuav coj cov khoom ntawm lub tub yees qhov rooj hloov lub thawv ib feem ua piv txwv los piav txog cov kauj ruam thiab qhov tsis muaj.

Kev xaiv khoom

Khoom siv: ABS yas
ABS yas muaj lub zog zoo, toughness, hnav tsis kam thiab kub tsis kam, thiab tsim nyog rau kev ua cov khoom nrog cov kev xav tau siab.

Pwm tsim

Cov ntsiab lus tsim:

Ib qho pwm plaub kab noj hniav tsim los txhim kho kev tsim khoom.

Qhov kev sib cais yog xaiv ntawm DD kom ntseeg tau tias qhib thiab kaw ntawm cov pwm.

Cov pwm txais cov ntsiab lus ntawm qhov rooj noj mov thiab ob chav parting nto qauv los xyuas kom meej cov khoom noj thiab cov khoom zoo.

Core rub mechanism: Lub voj voos loj ntawm ib sab siv cov tub ntxhais sab nraud rub ntawm cov kab lus qhia inclined, thiab ob qhov me me square grooves rau sab nraud siv cov tub ntxhais sab hauv rub ntawm inclined slider kom yooj yim rau cov qauv pwm.

Txheej txheem kev teeb tsa

1. Kev txhaj tshuaj kub: Raws li cov yam ntxwv ntawm ABS yas, teeb tsa qhov tsim nyog txhaj tshuaj kub ntau.
2. Kev txhaj tshuaj siab: Raws li cov qauv ntawm cov yas thiab cov pwm tsim, xaiv qhov tsim nyog txhaj tshuaj kom ntseeg tau tias cov yas tuaj yeem ua tiav cov pwm kab noj hniav.
3. Pwm kub: Tswj cov pwm kub kom tau qhov zoo tshaj plaws molding nyhuv thiab cov khoom zoo.
4. Compression siab (yog tias kev txhaj tshuaj compression molding yog koom nrog): Teem kom tsim nyog compression siab thaum tsim nyog los xyuas kom meej tias cov yas yog tag nrho compacted.

Cov txheej txheem ntau lawm

• Yas cua sov: Ntxiv ABS cov khoom yas rau hauv lub hopper ntawm lub tshuab txhaj tshuaj molding thiab ua kom sov rau hauv lub xeev molten los ntawm lub tshuab cua sov.
• Txhaj tshuaj: Tom qab cov pwm raug kaw, lub tshuab txhaj tshuaj molding tshuab txhaj cov yas ABS yas rau hauv kab noj hniav ntawm pwm los ntawm lub nozzle.
• Kev tuav tuav: Tom qab kev txhaj tshuaj tiav lawm, txuas ntxiv siv lub zog tuav lub zog kom ntseeg tau tias cov yas ntim puv hauv pwm thiab them nyiaj rau qhov tuaj yeem ua tau.
• Txias thiab kho: Cov yas yog txias thiab kho hauv pwm los ntawm cov dej txias channel lossis lwm yam khoom siv cua txias hauv pwm.
• Pwm qhib thiab demolding: Thaum cov yas yog tag nrho solidified, lub pwm qhib thiab molded cov khoom raug tshem tawm ntawm pwm los ntawm ib tug thawb pas nrig los yog lwm yam demolding mechanism.

Kev tswj kom zoo

Thoob plaws hauv cov txheej txheem tsim khoom, kev tswj xyuas nruj nruj yog ua tiav, suav nrog kev tshuaj xyuas cov khoom siv xws li qhov kub thiab txias ntawm cov yas, kev txhaj tshuaj siab thiab ceev, pwm kub thiab lub sijhawm txias, kom ntseeg tau tias txhua qhov txuas ua tau raws li cov txheej txheem yuav tsum tau ua.
Cov khoom lag luam molded raug kuaj pom pom, ntsuas qhov ntsuas thiab ntsuas kev ua haujlwm kom ntseeg tau tias cov khoom zoo ua tau raws li qhov yuav tsum tau ua.

Cov ntsiab lus

Los ntawm cov piv txwv saum toj no txhaj tshuaj molding, peb tuaj yeem pom daim ntawv thov kev txhaj tshuaj molding txheej txheem hauv kev tsim cov khoom yas. Hauv kev tsim khoom tiag tiag, nws yog qhov tsim nyog los xaiv cov pwm tsim nyog thiab cov txheej txheem tsis raws li cov ntaub ntawv yas tshwj xeeb thiab cov khoom yuav tsum tau ua, thiab tswj xyuas nruj kom ntseeg tau qhov zoo thiab ruaj khov ntawm cov khoom kawg.