Tsib lub ntsiab lus tseem ceeb rau DFM Kev Ntsuam Xyuas Cov Khoom Siv Ua Kua Silicone Txhaj Molding

Ua ntej, cia peb nkag siab cov ntsiab lus ntawm cov kua silicone encapsulation rau kho vajtse txhaj tshuaj molding. Cov kua silicone yog ib qho kev ua tau zoo ntawm -cov roj hmab hluavtaws nrog kev ua haujlwm siab - kub tsis kam, kev laus ua haujlwm, thiab tshuaj lom neeg ruaj khov. Vim nws zoo fluidity thiab luv curing lub sij hawm, nws yog dav siv nyob rau hauv ntau yam complex molding txheej txheem. Kho vajtse, raws li cov khoom siv ua haujlwm, ua lub luag haujlwm tseem ceeb hauv ntau yam khoom siv tshuab thiab khoom siv txhua hnub. Txawm li cas los xij, cov khoom siv liab qab tuaj yeem pom cov teeb meem brittleness thiab conductivity nyob rau hauv qee yam kev siv. Yog li ntawd, encapsulating nws nto nrog kua silicone ib txhij ua kom muaj ntau yam khoom xws li txhua yam muaj zog thiab rwb thaiv tsev. Kab lus no yuav piav qhia txog cov txheej txheem ntawm cov kua silicone encapsulation rau kho vajtse, cov ntsiab lus tseem ceeb ntawm DFM (Design for Manufacturability) tshuaj xyuas, thiab nws qhov tseem ceeb hauv kev txhaj tshuaj molding txheej txheem. Los ntawm ntau-lub kaum sab xis thiab ntau- theem kev tshuaj ntsuam, nws txheeb xyuas ntau yam kev tsim kho thiab teeb meem uas yuav cuam tshuam rau cov txheej txheem tsim khoom, thiab nthuav tawm cov lus qhia txhim kho kom txo qis cov nqi tsim khoom thiab cov txheej txheem nyuaj thaum ua kom cov khoom zoo thiab kev ua haujlwm ruaj khov. DFM tshuaj xyuas cov ntsiab lus feem ntau suav nrog cov hauv qab no: Liquid Silicone Overmolding Txhaj Molding Txheej Txheem

I. Liquid Silicone Overmolded Hardware Product Design

* ** Silicone thiab Hardware Bonding Design:** Kos seb txoj kev sib khi ntawm silicone thiab khoom siv puas tsim nyog. Piv txwv li, seb qhov kev tsim ntawm qhov chaw sib txuas yog qhov zoo rau silicone overmolding thiab seb puas muaj qhov chaw sib txuas txaus los xyuas kom muaj kev sib raug zoo. Nthuav cov npoo los yog dhau me me hloov radii yuav tsum tau zam kom tsis txhob muaj kev ntxhov siab thaum lub sij hawm txhaj tshuaj molding, uas tuaj yeem cuam tshuam cov khoom zoo.

* ** Khoom Dimensions thiab Tolerances:** Ntsuam xyuas seb qhov loj npaum li cas qhov yuav tsum tau muaj ntawm cov khoom nyob rau hauv ntau yam ua tau los ntawm kev txhaj tshuaj molding txheej txheem. Qhov tseeb qhov tseeb ntawm cov kua silicone txhaj tshuaj molding feem ntau cuam tshuam los ntawm yam xws li pwm raug thiab cov khoom shrinkage. Rau cov khoom siv kho vajtse, xav txog qhov cuam tshuam ntawm nws qhov ntev ntev ntawm kev sib dhos tag nrho los xyuas kom meej tias qhov kawg qhov ntev ntawm cov khoom tom qab silicone overmolding ua tau raws li cov qauv tsim.

* **Demolding Design:** Cov qauv khoom yuav tsum yooj yim demolding, zam cov qauv uas nyuaj rau demold, xws li undercuts los yog tob qhov. Yog tias tsim nyog, lub kaum sab xis tuaj yeem tsim tau. Feem ntau, lub kaum sab xis ntawm 1℃- 3℃yog haum rau cov khoom siv silicone, tab sis tus nqi tshwj xeeb yuav tsum tau hloov kho raws li cov duab thiab qhov loj ntawm cov khoom.

II. Selection of Liquid Silicone Overmolding Material

* Cov Khoom Siv Ua Kua Silicone: Xaiv cov khoom siv silicone tsim nyog raws li cov khoom lag luam kev ua haujlwm thiab cov kev xav tau ua haujlwm. Xav txog cov khoom siv hardness, tensile lub zog, tsim kua muag lub zog, aging kuj, thiab tshuaj corrosion kuj. Piv txwv li, rau cov khoom uas yuav tsum tau siv nyob rau hauv siab - qhov kub thiab txias ib puag ncig, yuav tsum tau xaiv ib tug high - kub resistant silicone khoom.

* Cov khoom siv kho vajtse: Cov khoom siv kho vajtse yuav tsum muaj kev sib raug zoo nrog silicone kom tsis txhob muaj tshuaj lom neeg lossis kev sib raug zoo tsis zoo thaum txhaj tshuaj molding. Nyob rau tib lub sijhawm, xav txog kev kho saum npoo ntawm cov khoom siv kho vajtse, xws li electroplating lossis txau, txhawm rau txhim kho nws lub zog sib txuas thiab corrosion kuj nrog silicone.

III. Liquid Silicone Mould Design

* Parting Surface Design: Kev xaiv ntawm qhov chaw parting yuav tsum xav txog cov khoom zoo li yuav tsum tau ua, demolding txoj kev, thiab cov pwm manufacturability. Txoj kab sib faib yuav tsum raug xaiv nyob rau hauv qhov chaw tsis pom kev ntawm cov khoom kom tsis txhob tawm ntawm txoj kab pom kev. Nyob rau tib lub sijhawm, xyuas kom zoo sealing ntawm txoj kab sib cais kom tsis txhob muaj cov silicone overflow thaum txhaj tshuaj molding.

* ** Rooj vag Tsim: ** Qhov chaw, tus lej, thiab hom ntawm lub rooj vag ncaj qha cuam tshuam rau qhov sib xws ntawm silicone ntws thiab ntim cov nyhuv hauv pwm. Qhov chaw ntawm lub rooj vag yuav tsum tsim kom muaj kev sib haum xeeb raws li cov khoom tsim, qhov loj me, thiab cov yam ntxwv ntawm cov qauv kom ntseeg tau tias cov silicone ntim ntawm cov pwm kab noj hniav thiab tsis txhob muaj qhov tsis xws luag xws li ua tsis tiav, cua npuas, thiab cov kab vuam.

* ** Kev Tsim Cov Cuab Yeej Cuab Yeej Cuab Yeej: ** Kev tsim cov cua txias yog qhov tseem ceeb rau kev txhim kho kev tsim khoom thiab cov khoom zoo. Cov cua txias yuav tsum muab sib npaug sib npaug ntawm cov pwm kab noj hniav kom ntseeg tau sai thiab zoo ib yam txias thiab solidification ntawm silicone tom qab txhaj tshuaj molding, txo cov khoom deformation thiab shrinkage. Txoj kab uas hla ntawm cov cua txias yog feem ntau ntawm 8-12mm, thiab qhov sib nrug yog 3-5 npaug ntawm txoj kab uas hla ntawm cov cua txias.

IV. Ua kua Silicone Overmolding txheej txheem

* ** Txhaj Kub: ** Qhov kev txhaj tshuaj kub rau cov kua silicone yog feem ntau ntawm 120℃thiab 180 degree. Qhov tshwj xeeb kub yuav tsum tau kho raws li cov yam ntxwv ntawm cov khoom siv silicone thiab cov yam ntxwv ntawm cov khoom. Qhov kub ntau dhau yuav ua rau cov silicone ua kom kub los yog tsis muaj xim, thaum qhov kub tsis txaus yuav cuam tshuam rau silicone fluidity thiab filling effect.

* ** Kev txhaj tshuaj siab: ** Kev txhaj tshuaj siab yuav tsum tau kho kom haum raws li cov khoom loj, cov duab, phab ntsa tuab, thiab cov qauv pwm. Feem ntau, kev txhaj tshuaj rau cov kua silicone yog nyob nruab nrab ntawm 5 thiab 15 MPa. Lub siab ntau dhau yuav ua rau pwm deformation thiab flash ntawm cov khoom, thaum lub siab tsis txaus yuav ua rau pwm tsis tiav.

* ** Lub Sijhawm Tuav: ** Lub sijhawm tuav tau muaj kev cuam tshuam tseem ceeb ntawm qhov ruaj khov thiab qhov zoo ntawm cov khoom. Hauv cov kua silicone txhaj tshuaj molding, lub sij hawm tuav feem ntau ntawm 10 thiab 30 vib nas this. Lub sijhawm tuav ntau dhau ua rau cov khoom siv lub sijhawm txias, txo kev ua haujlwm ntau lawm; Lub sijhawm tuav tsis txaus tuaj yeem ua rau cov khoom ntim ntau dhau thiab nyuaj rau kev tswj xyuas qhov tseeb.

V. Kev Tswj Xyuas Cov Khoom Siv Ua Kua Silicone Overmolding

* ** Kev tshuaj xyuas qhov tshwm sim: ** Tshawb xyuas cov khoom rau qhov tsis xws luag xws li npuas, flash, khoom ploj, deformation, thiab discoloration. Rau cov khoom lag luam uas yuav tsum tau ua kom pom zoo, kev tshuaj xyuas kom ntxaws yuav tsim nyog siv cov cuab yeej xws li optical microscopes lossis projectors.

* ** Dimensional Accuracy Measurement:** Siv cov cuab yeej ntsuas precision xws li kev sib koom tes ntsuas tshuab los ntsuas qhov tseem ceeb ntawm cov khoom kom paub meej tias cov khoom qhov ntev raws li cov qauv tsim. Dimensional raug tswj yuav tsum tau txiav txim siab tag nrho thaum lub sij hawm tsim cov khoom tsim, ua kom muaj kev ruaj ntseg los ntawm kev tsim pwm tsim thiab kev txhaj tshuaj molding txheej txheem.

* ** Kev Ntsuas Kev Ua Haujlwm: ** Ua cov kev ntsuas kev ua tau zoo ntawm cov khoom raws li nws cov kev xav tau, xws li kev ntsuas lub zog tensile, kev ntsuas lub zog tsim kua muag, ntsuas qhov tawv, thiab kev kuaj kev laus. Kev ntsuas kev ua tau zoo yuav tsum tau ua raws li cov qauv hauv lub tebchaws lossis cov tuam txhab lag luam kom ntseeg tau tias cov khoom lag luam zoo raws li cov kev xav tau.

Los ntawm cov ntsiab lus saum toj no DFM tshuaj xyuas, peb tuaj yeem nkag siab qhov nyuaj thiab cov teeb meem ntawm cov kua silicone overmolding tshuab rau kho vajtse. Liquid silicone overmolding technology muaj dav daim ntawv thov kev cia siab nyob rau hauv niaj hnub manufacturing. Raws li qhov txuas tseem ceeb hauv kev ua kom cov khoom lag luam zoo thiab kev tsim khoom zoo, DFM tshuaj xyuas yog ib qho tseem ceeb ntawm Donghao Plastics 'nruam thev naus laus zis tshiab thiab kev ua kom zoo tshaj plaws los muab cov neeg siv khoom nrog siab - zoo, siab - ua haujlwm ua kua silicone overmolded qhov chaw, ua tau raws li kev xav tau ntawm cov neeg siv khoom thoob plaws ntau yam lag luam.