Kev soj ntsuam ntawm kev siv cov kua silicone roj hmab (LSR) nyob rau hauv cov dej tsis zoo overmolded qhov chaw

Analysis ntawm technical ap

Nyob rau hauv lub teb ntawm precision manufacturing, kev xaiv ntawm cov ntaub ntawv rau waterproof overmolded Cheebtsam ncaj qha cuam tshuam lub sealing kev ua tau zoo thiab kev pab lub neej ntawm cov khoom. Liquid silicone roj hmab (LSR) nthuav tawm cov txiaj ntsig zoo hauv daim teb no vim nws cov khoom siv tshwj xeeb thiab cov txheej txheem molding. Kab lus no yuav txheeb xyuas nws los ntawm cov khoom ntawm cov khoom siv, cov txheej txheem tsim khoom, thiab kev siv cov xwm txheej.

Ua kua Silicone Overmolding
I. Cov yam ntxwv ua haujlwm ntawm cov khoom

Cov kua roj hmab silicone muaj ob peb lub cev tshwj xeeb. Nyob rau hauv cov nqe lus ntawm elasticity, LSR tuav zoo elastic rov qab nyob rau hauv ib tug kub ntawm -50℃rau 200℃. Cov yam ntxwv no tso cai rau nws kom muaj kev sib khi zoo txawm tias nyob hauv ib puag ncig uas muaj qhov kub thiab txias hloov pauv, muab lub hauv paus rau kev ua haujlwm tsis zoo rau lub sijhawm ntev.

Hais txog kev hloov pauv ib puag ncig, LSR nthuav tawm zoo tiv thaiv hluav taws xob ultraviolet, ozone, thiab av noo hloov pauv. Cov khoom muaj hnub nyoog kuj qeeb thiab tswj kev ua haujlwm ruaj khov rau lub sijhawm ntev nyob rau sab nraum zoov lossis qhov chaw ntub dej. Ib txhij, LSR muaj cov khoom siv hluav taws xob zoo, ua rau nws tsim nyog rau kev tiv thaiv dej tsis zoo ntawm cov khoom siv hluav taws xob.

Processability yog lwm yam ntxwv ntawm LSR. Cov khoom siv tsis muaj viscosity tso cai rau nws los sau cov qauv pwm, suav nrog micro- qhov khoob thiab nyias- cov phab ntsa. Thaum lub sij hawm kho, LSR nthuav tawm tus nqi qis ntawm kwv yees li 0.1% -0.3%, tus yam ntxwv uas pab tswj qhov tseeb qhov tseeb, tshwj xeeb tshaj yog tseem ceeb rau cov qauv dej tsis sib haum uas yuav tsum tau ua kom haum.

II. Cov txheej txheem kev tsim khoom

Cov txheej txheem txhaj tshuaj molding rau cov kua silicone txawv me ntsis ntawm cov txheej txheem molding rau cov khoom siv silicone. Nyob rau hauv cov nqe lus ntawm ntau lawm automation, LSR txhaj molding tshuab muaj peev xwm automate metering, mixing, thiab txhaj tshuaj, txo cov kev khiav hauj lwm phau ntawv thiab txhawb ntau lawm sib xws. Cov khoom siv silicone feem ntau xav tau kev tuav ntau dua, suav nrog kev txiav, qhov hnyav, thiab kev tso kawm.

Hais txog molding precision, qhov tsawg viscosity ntawm LSR tso cai rau tsim cov txheej nyias nyias, nrog rau qhov tsawg kawg nkaus phab ntsa thickness ntawm kwv yees li 0.2 hli. Cov yam ntxwv no ua kom yooj yim cov qauv tsim, ua kom haum rau cov qauv miniaturization ntawm cov khoom siv hluav taws xob niaj hnub. Hauv qhov sib piv, cov khoom siv silicone yuav ntsib qee qhov kev txwv thaum sau cov qauv sib txawv.

Nyob rau hauv cov nqe lus ntawm ntau lawm efficiency, LSR txhaj molding voj voog yog feem ntau luv luv, thiab daim ntawv thov ntawm txias khiav tshuab txo cov khoom pov tseg. Nyob ntawm cov qauv khoom, kev siv cov khoom siv tuaj yeem ncav cuag qib siab. Cov txheej txheem molding cov txheej txheem tsim ib qho kev faib ua feem ntawm vulcanization pov tseg hauv txhua lub voj voog ntau lawm, ua rau muaj kev siv cov khoom siv tsawg.

III. Daim ntawv thov Scenario

Hauv kev sib txuas ntawm cov khoom siv hluav taws xob, LSR feem ntau yog siv rau kev ua dej tsis sib haum hom -C thiab BTB interfaces. Nws cov khoom ntws tso cai rau nws kom ua tiav qhov khoob ntawm cov pins, ua kom tsis muaj dej tsis tu ncua thaum tsis txhob cuam tshuam rau cov neeg sib cuag.

Automotive Cheebtsam muaj cov kev xav tau siab rau cov khoom siv kub thiab ua haujlwm ntev. Daim ntawv thov ntawm LSR hauv sensor overmolding thiab xaim hlua txuas tuaj yeem tiv taus qhov kub thiab txias thiab kev vibrations nyob rau hauv lub cav compartment. Cov khoom siv elasticity pab tswj lub foob raws li cov xwm txheej no.

Cov neeg siv khoom siv hluav taws xob, tshwj xeeb tshaj yog cov khoom siv hnav, feem ntau xav tau qhov sib npaug ntawm cov dej tsis zoo thiab cov qauv tsim kom zoo nkauj. LSR tuaj yeem tsim cov txheej txheem siab tshaj - zoo tshaj plaws, muab qhov kev xav zoo thaum ua tau raws li IP67 lossis siab dua cov kev cai tiv thaiv dej. Nws biocompatibility kuj ua rau nws haum rau cov khoom uas tuaj rau hauv cov tawv nqaij.

Hauv kev tsim khoom siv kho mob, kev siv LSR yuav tsum ua raws li cov qauv kev nyab xeeb biosafety. Kev ruaj ntseg ntawm cov khoom siv thaum lub sij hawm ua kom tsis muaj menyuam thiab nws cov kev ua tau zoo khaws cia hauv cov dej hauv lub cev yog qhov tseem ceeb uas yuav tsum tau xav txog hauv kev siv tswv yim.

IV. Kev txiav txim siab ntau lawm

Kev siv LSR txhaj tshuaj molding yuav tsum muaj cov txheej txheem tsim khoom. Lub machining precision ntawm pwm ncaj qha cuam tshuam rau molding zoo, feem ntau yuav tsum tau ua kom tiav qhov siab thiab qhov kub thiab txias tswj. Kev ruaj ntseg ntawm cov cuab yeej txhaj tshuaj molding yog qhov tseem ceeb rau kev tswj cov txheej txheem sib xws, nrog rau kev tswj xyuas qhov kub thiab txias thiab kev tswj xyuas kev txhaj tshuaj.

Hauv kev tsim khoom tiag tiag, cov txheej txheem yuav tsum tau hloov kho raws li cov khoom xav tau. Pwm kub yog feem ntau tswj nyob rau hauv ib tug tsim nyog ntau yam, thiab kev txhaj tshuaj ceev yuav tsum tau optimized raws li cov khoom qauv. Cov kev ntsuas ntsuas no cuam tshuam rau cov khoom siv tus cwj pwm ntws thiab txheej txheem kho.

Los ntawm kev xav txog kev lag luam, txawm hais tias thawj zaug peev hauv LSR txhaj tshuaj molding yuav siab dua, nws cov khoom siv hluav taws xob thiab kev siv cov khoom siv tuaj yeem coj tau qee yam zoo hauv kev tsim khoom loj. Kev ntsuam xyuas tshwj xeeb yuav tsum tau ua raws li cov khoom tsim tawm, cov kev xav tau zoo, thiab cov qauv nqi.

Cov ntsiab lus

Daim ntawv thov ntawm cov kua silicone nyob rau hauv waterproof overmolding yog ib tug tshwm sim ntawm txuam nws cov khoom zog nrog cov txheej txheem ntau lawm. LSR muab cov kev daws teeb meem ua tau rau cov ntawv thov uas xav tau kev sib khi, cov qauv nyuaj, lossis kev ua haujlwm ruaj khov. Hauv kev xyaum, kev txiav txim siab dav dav ntawm cov khoom tshwj xeeb, cov xwm txheej tsim khoom, thiab cov nqi tsim nyog yog tsim nyog thaum xaiv.

Nrog rau kev nce qib hauv kev tsim thev naus laus zis thiab cov ntaub ntawv tshawb fawb, kev siv cov kua silicone zoo li yuav nthuav dav ntxiv. Rau cov tuam txhab tsim khoom, kev nkag siab txog cov khoom siv thiab cov yam ntxwv ntawm cov txheej txheem yuav pab ua kom muaj kev xaiv thev naus laus zis tsim nyog thaum tsim khoom thiab tsim khoom.

Daim ntawv thov ntawm cov kua silicone roj hmab (LSR) nyob rau hauv cov dej tsis zoo overmolded qhov chaw