Compression molding yog thawj zaug siv rau molding roj hmab tab sis ntau yam ntawm cov ntaub ntawv nws ua hauj lwm nrog tau zoo heev nthuav txij thaum ntawd los. Ntau yam khoom nyob ib puag ncig koj tau tsim los siv compression molding, thiab nws tseem tuaj yeem yog qhov kev tsim khoom zoo tshaj plaws rau koj hnub no.
Compression Molding yog dab tsi?
Compression molding yog cov txheej txheem ntau lawm uas siv ob sab rhuab pwm, sab saum toj thiab hauv qab, kom compress cov khoom moldable rau hauv cov duab lossis daim ntawv txiav txim los ntawm pwm. Ob qho tib si kub thiab siab yog qhov tseem ceeb ntawm cov txheej txheem compression molding. Thaum tshav kub kub pab cov khoom siv rau compression molding kom yaj los yog kho nyob ntawm seb hom khoom siv. Lub zog quab yuam cov khoom softened kom ntws tusyees mus rau hauv pwm kab noj hniav.
Raws li tau hais los ntawm nws lub npe, compressive rog yog qhov tseem ceeb rau txoj kev molding no. Lub tonnage ntawm presses siv tau mus txog li 2500 tons. Compression molding yog ib txoj hauv kev zoo tshaj plaws rau kev ntim khoom ntau.
Txoj kev Compression Molding
Cov txheej txheem compression molding muaj ob peb qhov txawv nyob ntawm seb hom khoom koj ua haujlwm nrog. Txawm li cas los xij, cov txheej txheem tseem ceeb tuaj yeem raug faib ua rau rau theem pib.
Kauj Ruam 1: Npaj lub tshuab rau Moulding
Muaj ntau hom compression molding cov cuab yeej, tab sis txhua tus yuav tsum tau npaj nyob rau hauv qee txoj kev ua ntej lub voj voog ntau lawm pib. Qhov no tuaj yeem suav nrog kev ua xws li:
- Ntxuav cov pwm
- Txau tus neeg sawv cev tso tawm
- Tig lub cua sov thiab preheating pwm
- Muab cov ntawv ntxig, thiab lwm yam.
Cov kev ua no yog qhov tseem ceeb thiab tsis muaj ib kauj ruam yuav ua rau muaj qhov tsis zoo lossis puas.
Kauj Ruam 2: Ntsuas thiab thauj cov khoom noj
Tus nqi ntawm cov khoom siv yas siv hauv compression molding yuav tsum tau ntsuas qhov tseeb. Qhov no yuav pab kom muaj kev sib xws ntawm cov khoom. Cov khoom siv ntau dhau ntawm cov pwm tuaj yeem ua rau muaj ntau yam teeb meem xws li:
- Ntau dhau ntawm flash uas yuav tsum tau txiav tawm
- Demolding kev sib tw
- Cov pwm puas lawm
- Tsawg qhov tseeb qhov tseeb
Ntawm qhov tod tes, cov khoom siv me me tuaj yeem ua rau muaj qhov ceev ceev, muaj cov khoom tsis zoo, lossis txawm tias muaj cov ntu ploj lawm.
Thaum ntsuas qhov tseeb ntawm cov khoom, nws muab tso rau hauv kab noj hniav ntawm cov pwm. Cov khoom siv molding yuav raug preheated ua ntej muab tso rau hauv pwm. Qhov no tuaj yeem pab txo lub sijhawm voj voog.
Kauj Ruam 3: Kaw lub Pwm / Compressing cov khoom
Thaum cov khoom nyob rau hauv qhov chaw, cov pwm raug kaw kom siv cov compression uas yuam cov khoom mus rau txhua qhov ntawm cov pwm kab noj hniav. Thaum tshav kub kub tuaj yeem siv rau cov pwm ntawm theem no thiab ua kom cov khoom muag muag lossis pab kho cov khoom siv thermoset.
Qhov kaw ntawm pwm yuav siv qhov chaw ntawm qhov kev txiav txim siab ceev kom nrawm dua lub sij hawm voj voog. Qhov ceev kuj tsis tuaj yeem siab dhau vim tias cov khoom tuaj yeem hloov tau los ntawm sab hauv pwm kab noj hniav.
Kauj Ruam 4: Kho los yog txias
Tom qab cov pwm raug kaw, cov khoom raug tuav hauv qhov chaw rau qee lub sijhawm, feem ntau 1 - 5 feeb. Cov khoom yuav raug kho rau lub thermoset yas thaum lub sijhawm no. Kev kho yog cov txheej txheem uas crosslinking tshwm sim hauv cov polymer uas ua rau muaj cov khoom muaj zog nrog cov khoom tshwj xeeb.
Nyob rau hauv cov ntaub ntawv ntawm cov thermoplastics, cov tsim ib feem nyob rau hauv lub pwm yog txias nyob rau hauv lub sij hawm no kom txog rau thaum nws yog ib qho nyuaj txaus kom tshem tawm yam tsis muaj kev puas tsuaj.
Kauj Ruam 5: Demolding
Thaum lub sij hawm no, cov pwm qhib thiab cov khoom raug tshem tawm ntawm cov pwm. Ejection pins thiab lwm yam tshuab tshuab tuaj yeem pab nrog qhov no. Qee zaum, demolding tuaj yeem ua los ntawm tes.
Qee qhov chaw muaj txheej txheem demolding nyuaj dua li lwm qhov. Piv txwv li, rau ib feem molded nrog kev pab los ntawm inserts, cov inserts yuav tsum tau muab tshem tawm nyob rau hauv ib co taw tes thaum lub sij hawm demolding theem.
Kauj Ruam 6: Tom qab ua tiav
Tom qab ib feem tau raug tshem tawm ntawm cov pwm, nws yuav tsum tau ua ob peb kauj ruam ntxiv ua ntej nws txiav txim siab npaj. Txiav tawm cov khoom siv ntau dhau los yog flash yog ib qho txheej txheem nyob rau theem no. Lwm qhov chaw yuav xav tau kev kho cua sov kom txo cov kev ntxhov siab sab hauv lossis ntxuav.
Pwm Tsim hauv Compression Moulding
Kev vam meej hauv compression molding pib nrog kev tsim pwm zoo rau koj feem.Cov tshuab ntawm compression molding tso qee qhov kev txwv ntawm cov yam ntxwv ib feem tuaj yeem muaj. Nws yog ib qho tseem ceeb kom paub txog cov kev txwv no kom ntseeg tau tias qhov tsim tau tuaj yeem tsim tau.
Compression molding tshuab tuaj yeem siv los pwm qhov chaw nrog cov qauv tsim, tab sis cov no ua rau cov txheej txheem nyuaj dua.
Ib tug complex tsim yuav ntxiv ob peb kauj ruam rau cov txheej txheem. Cov qauv zoo li no tuaj yeem ua rau nws nyuaj rau cov khoom ntws thiab ncav cuag txhua feem ntawm cov pwm. Cov kauj ruam ntxiv txhais tau tias lub voj voog ntau lawm ntev dua thiab cov nqi ntau dua thaum cov khoom siv tsis zoo tuaj yeem ua rau muaj qhov tsis xws luag.
Ua Part Ejection Yooj Yim
Kev yooj yim ntawm ib feem ejection yuav tsum tau txiav txim siab thaum tsim ib feem vim hais tias qhov nyuaj rau eject yuav ntsib cov teeb meem hauv qab no:
- Ntev mus ntev
- Qhov chaw tsis zoo
- Kev tawg thaum ejection
Ob yam uas ua rau nws yooj yim dua rau eject qhov chaw yog siv cov kaum sab xis hauv kev tsim cov pwm, thiab tsis txhob muaj kev sib tsoo.
Xaiv qhov tsim nyog phab ntsa Thickness
Ob phab ntsa tuab thiab nyias tuaj yeem tsim teeb meem rau cov khoom molded. Cov phab ntsa tuab yog nquag tsim cov voids sab hauv. Qhov no yog tshwm sim los ntawm cov seem ntawm cov phab ntsa txias sai dua li cov seem sab hauv.
Cov phab ntsa nyias nyias tsis muaj lub zog los tiv thaiv lub zog deforming vim qhov hloov pauv ntawm qhov kub thiab txias. Lawv feem ntau yuav warp los yog distort nyob rau hauv ib txoj kev raws li ib feem yog txias.
Cov kev cov nyom no txhais tau hais tias tus qauv tsim pwm yuav tsum xaiv qhov zoo tshaj plaws phab ntsa thickness raws li qhov kev xav tau ntawm cov qauv thiab cov khoom ntws. Ribs feem ntau yog siv los ua kom muaj zog qhov tsis muaj phab ntsa tuab.
Xav txog cov khoom siv
Cov khoom sib txawv coj txawv txawv thaum lub sij hawm compression molding txheej txheem. Qee cov ntaub ntawv yuav tsis ntws yooj yim li lwm tus. Lwm tus yuav ua kom sov lossis txias ntawm qhov qeeb qeeb lossis nrawm dua. Qee cov ntaub ntawv kuj tseem tuaj yeem nthuav lossis txo qis thaum qee theem ntawm cov txheej txheem.
Kev tsim pwm yuav tsum tau coj mus rau hauv tus account xws li qhov tseeb kom tsis txhob ua qhov tsis xws luag lossis qhov chaw tsis raug.
Tsim kom kawg
Compression molding yog cais raws li ib tug high-volume manufacturing txoj kev. Qhov no txhais tau hais tias cov pwm siv yuav tsum siv sij hawm ntev thiab siv rau ntau qhov chaw.
Txhawm rau kom ntseeg tau tias qhov no yog qhov teeb meem, cov pwm yuav tsum tau tsim nyob rau hauv ib txoj kev uas txo qhov kev puas tsuaj ntawm qhov kub thiab txias.
Qhov chaw ntawm cov pwm uas tuaj yeem ua kom puas yooj yim dua yuav tsum tau tsim kom yooj yim kho. Qhov no yuav txo tau lub sijhawm poob yog tias cov khoom no yuav tsum tau hloov lossis kho.
Khoom siv rau Compression Molding
Compression molding yog ib qho ntawm ob peb txoj kev tsim khoom uas tuaj yeem ua haujlwm nrog ob qho tib si thermosets thiab thermoplastics. Qhov no nthuav dav ntau yam ntawm cov khoom lag luam uas tuaj yeem tsim tau siv cov txheej txheem no. Qee cov ntaub ntawv siv tam sim no suav nrog silicone, epoxy, thiab HDPE.
Silicone
Silicone yog cov khoom siv elastomeric zoo heev uas hloov cov roj hmab ntuj hauv ntau daim ntawv thov. Nws muaj qhov zoo ntawm qhov kub thiab txias thiab ua tau zoo heev raws li ib qho insulator. Nws kuj tseem siv tau ntau dua li cov roj hmab thiab tuaj yeem siv rau hauv kev kho mob thiab zaub mov-qib daim ntawv thov.
Silicone yog qhov zoo rau compression molding vim nws ntws tau yooj yim, cia nws sau cov ntaub ntawv ntawm pwm zoo.Silicone feem ntau yog siv los tsim gaskets, seals, thiab cov khoom siv kho mob.
PU
PU, tseem hu ua polyurethane, ua rau cov khoom siv nrog lub zog muaj zog, ua kom tsis muaj zog, thiab tawv.Raws li kev tsim qauv, ib feem PU tuaj yeem muaj ntau yam sib txawv ntawm lub cev.
Cov thermoset no ntws tau yooj yim thiab nrog compression molding tuaj yeem siv los ua cov log, ntsaws ruaj ruaj, rollers, thiab lwm yam.
HDPE
High-density polyethylene yog ib qho thermoplastic uas yaj yooj yim thiab ntws zoo hauv lub xeev molten. Nws tuaj yeem siv rau compression molding ntawm qhov chaw ncaj ncees. Cov khoom no muaj qhov zoo ntawm qhov ruaj khov thiab cuam tshuam tsis kam.
Compression molding yog siv rau kev tsim khoom ntawm HDPE qhov chaw rau kev lag luam thiab kev siv tsheb.
PTFE
Polytetrafluoroethylene nthuav tawm cov khoom zoo heev uas tsis yog-stick thiab tseem tiv taus cov tshuaj lom neeg. PTFE yog cov khoom zoo rau compression molding vim nws ntws tau yooj yim. Bearings, gaskets, thiab qhov chaw rau hluav taws xob rwb thaiv tsev tuaj yeem raug molded siv PTFE.
Sib piv nrog lwm cov txheej txheem molding
Compression molding thiab txhaj tshuaj molding feem ntau muab piv vim tias ob txoj kev siv pwm. Txawm hais tias muaj qhov sib tshooj tseem ceeb, ob txoj kev tsim khoom no yog qhov sib txawv thiab feem ntau ua rau kev tsim khoom sib txawv.
Qhib Vs Kaw Pwm
Compression molding siv qhov qhib pwm tsim. Cov khoom yog muab tso rau hauv cov pwm kab noj hniav ua ntej sab saum toj ntawm pwm kaw rau saum nws.
Ntawm qhov tod tes, txhaj tshuaj molding siv lub kaw pwm tsim. Cov khoom yog txhaj rau hauv pwm uas twb kaw lawm. Muaj txoj hauv kev rau kev qhia txog cov khoom siv lossis qhov cua.
Tshooj Tsim
Qhov qhib qhov pwm ntawm cov pwm siv rau compression molding ua rau nws muaj cov txheej txheem zoo rau kev ua cov khoom loj nrog cov duab tsis yooj yim xws li cov panels. Cov khoom xws li tsheb bumpers tuaj yeem ua tau yooj yim siv cov txheej txheem no.
Qhov kaw qhov xwm txheej ntawm kev txhaj tshuaj molding pwm ua rau nws muaj cov txheej txheem zoo heev rau kev tsim cov khoom nrog cov qauv tsim nyuaj. Cov ntaub ntawv yog nkag mus rau hauv pwm ntawm lub siab siab uas ua rau nws ntws mus rau hauv cov ntaub ntawv nyuaj.
Teeb Tus Nqi
Kev teeb tsa kev txhaj tshuaj molding ua haujlwm yuav kim dua li kev teeb tsa rau compression molding.Cov cuab yeej siv tau zoo heev vim tias lawv yuav tsum muaj peev xwm tswj tau qhov siab ntawm cov txheej txheem txhaj tshuaj molding thiab nruj tswj cov txheej txheem tsis.
Cov cuab yeej rau compression molding tsis raug nqi ntau npaum li cas, thiab qhov no ua rau nws xaiv zoo dua thaum lub ntim ntau lawm.
Cycle Times
Compression molding cycles tuaj yeem nyob nruab nrab ntawm ib thiab rau feeb. Qee qhov kev txhaj tshuaj molding voj voog ntawm qhov tod tes yuav ua tau tsawg li ob vib nas this.
Muaj cov xwm txheej uas lub sijhawm ntau lawm rau kev txhaj tshuaj molding yog ntev tshaj li ib feeb tab sis feem ntau nws yog cov txheej txheem sai dua thiab yog qhov kev xaiv zoo tshaj plaws rau kev tsim khoom loj.
Qhov sib txawv ntawm lub voj voog lub sij hawm los ntawm qhov tseeb tias cov txheej txheem txhaj tshuaj molding feem ntau yog ua tiav tag nrho thaum compression molding tuaj yeem yog phau ntawv nrog cov khoom xav tau sijhawm los kho ua ntej raug tshem tawm. Kev thauj khoom ntawm cov ntaub ntawv thiab ejection ntawm qhov chaw kuj tuaj yeem ua manually hauv compression molding.
Qib ntawm Precision
Cov txheej txheem txhaj tshuaj molding yog txheej txheem ntau dua piv rau compression molding.Cov pwm siv rau kev txhaj tshuaj molding yog tsim los ntawm cov ntaub ntawv muaj zog heev. Lawv tsis tshua muaj peev xwm tsim qhov tsis xws luag uas cuam tshuam rau cov duab thiab qhov ntev ntawm qhov chaw.
Qib ntawm precision yog siab txaus uas txhaj tshuaj molded qhov chaw yuav tsis xav tau ib qho kev ua tom qab.
Cov khoom xaiv
Txawm hais tias kev txhaj tshuaj molding ua haujlwm zoo nrog ntau cov ntaub ntawv, ib rooj plaub tshwj xeeb nrog compression molding yog tias nws tuaj yeem siv ntau cov molding compound lossis daim ntawv molding compound. Cov ntaub ntawv no muaj cov fibers tws thiab tuaj yeem siv los tsim cov khoom sib xyaw.
Kev txhaj tshuaj molding tsis tuaj yeem siv cov ntaub ntawv zoo li no thiab tsis haum rau kev ua cov khoom ua los ntawm cov khoom sib xyaw.
Qhov zoo thiab qhov tsis zoo ntawm Compression Molding
Compression molding tau muaj sia nyob rau ntau tshaj ib puas xyoo. Qhov no yog vim nws muaj qhov zoo uas suav nrog:
- Tus nqi qis dua:Cov cuab yeej txuam nrog compression molding xws li hydraulic presses, tsis nyuaj li cov cuab yeej siv rau kev txhaj tshuaj molding. Qhov no ua rau nws raug nqi tsawg dua los pib ua haujlwm compression molding.
- Zoo dua rau cov khoom ntim qis:Tus nqi qis ntawm compression molding tooling ua rau nws zoo dua rau cov khoom ntim qis. Qhov no yog vim cov khoom tsawg dua yuav tsum tau ua kom tawg.
- Zoo heev rau cov khoom loj:Lub ntsiab txwv ntawm qhov loj thiab qhov hnyav ntawm cov khoom siv compression molding yog lub tonnage thiab qhov loj ntawm cov xovxwm. Yog li ntawd, compression molding feem ntau yog siv los tsim cov khoom loj dua piv rau kev txhaj tshuaj molding thiab lwm yam txheej txheem.
- Inserts yog ua tau:Ntxig molding yog molding ntawm ib yam khoom dua lwm tus. Qhov no yog ua tau nrog compression molding yog tias siv txoj kev thiab cov cuab yeej siv.
- Cov khoom muaj zog:Compression molding tsim cov khoom ntom ntom uas muaj zog heev ua tsaug rau qhov loj compressive rog nws siv.
- Khoom siv compatibility:Compression molding yog sib xws nrog ntau yam khoom siv xws li fiber-impregnated composites.
Txoj kev tsim khoom no tsis yog ib txwm haum rau qee yam khoom. Qhov tsis zoo ntawm compression molding muaj xws li:
- Qhov complexity:Cov theem ntawm qhov nyuaj uas tuaj yeem ua tiav siv compression molding tsis yog qhov tsis zoo tab sis nws tsis tuaj yeem sib tw nrog kev txhaj tshuaj molding thiab lwm yam txheej txheem.
- Lub sijhawm tsim khoom:Lub sij hawm ntau lawm rau compression molding yog ntev dua cov kev txhaj tshuaj molding.
- Post-processing:Yog tsis muaj kev ntsuas zoo, flash tuaj yeem yog qhov teeb meem tseem ceeb hauv compression molding. Cov khoom siv ntau dhau yuav tsum tau muab tshem tawm thiab cov kauj ruam ntxiv no tuaj yeem kim.
Kev siv ntawm Compression Molding
Compression molding tuaj yeem siv los ua ntau yam ntawm cov khoom siv thermoplastic, thiab thermosetting polymers. Qee qhov piv txwv ntawm cov no yog:
- Hluav taws xob qhov chaw:Cov qhov (socket), faceplates, keyboards, thiab lwm yam khoom siv hluav taws xob tuaj yeem ua tau siv compression molding.
- Cov khoom siv hluav taws xob:Qhov chaw ntawm cov keyboards, game controllers, thiab lwm yam tuaj yeem ua los ntawm cov txheej txheem no.
- Automotive qhov chaw:Cov vaj huam sib luag loj thiab lwm qhov ntawm lub tsheb tuaj yeem ua tau siv compression molding.
- Cov khoom siv kho mob:Lub qhov ncauj qhov ntswg thiab lwm yam khoom siv kho mob yog tsim los ntawm compression molding.
Xaus
Compression molding tsis muaj qhov sophistication ntawm kev txhaj tshuaj molding, tab sis nws tseem yog txoj kev zoo tshaj plaws los ua qee yam khoom.
Cov txheej txheem tsim khoom no yooj yim thiab cov khoom siv txawm tias manually thauj khoom rau hauv pwm. Txawm tias nws yooj yim, nws tsim cov khoom uas muaj zog heev, thiab zoo nto tiav, thiab nws muaj peev xwm txawm tswj ib co complex geometry.
Compression molding tam sim no ua haujlwm nrog ntau cov thermosetting thiab cov ntaub ntawv thermoplastic thiab nws cov khoom siv thoob plaws ntau lub lag luam.