Nyob rau hauv tus sau ntawm kev ua yeeb yam kub, cov khoom shrinkage lossis deformation sawv cev ib qho kev sib tw tsis tau muaj. Qhov teeb meem no tsis tsuas yog txo qis qhov cuam tshuam loj ntawm cov khoom lag luam zoo nkauj, tab sis kuj muab cov nqi ntau dua thiab ua kom cov nqi tsim khoom lag luam. Nqa kev ntim khoom thiab luam ntawv ua piv txwv, qhov twg kub stamping yog nquag siv los txhim kho cov khoom lag luam zoo thiab kev ntxhib los mos. Yuav tsum tau cov khoom lag luam uas dhau los lossis deformation, nws cuam tshuam ncaj qha rau kev pom kev pom tag nrho ntawm lub ntim. Qhov no kuj yuav ua rau cov khoom xa rov qab, cuam tshuam ntau cov nyiaj khwv tau los ntawm cov lag luam. Txawm li ntawd los, kev sib tham zoo ntawm kev tiv thaiv thiab kev tuav pov tseg rau cov khoom shrinkage lossis deformation hauv cov khoom siv kub ua haujlwm tseem ceeb cuam tshuam.

(A) tsom xam cov yam ntxwv sib txawv

Nyob rau hauv cov ntawv ci stor storial ua, lub thaj chaw hauv nruabs ntawm cov khoom sib txawv cuam tshuam cov khoom shrinkage lossis deformation. Noj cov plastics ua ib qho piv txwv, thermal ruaj khov yog qhov tseem ceeb. Cov plastics nrog cov neeg txom nyem thermal stability yog nquag rau thermal decomposition thaum siab- foil stamping. Cov qauv molecular no, tom qab ntawd ua rau shrinkage. Piv txwv li, polystyrene (ps) yuav muaj kev sib tw molecular ntawm cov khoom siv kub siab, ua rau muaj zog volumetric ntawm cov khoom siv.

Cov khoom hygroscopic ntawm cov ntawv kuj cuam tshuam rau cov txiaj ntsig stamping. Daim ntawv, tau hygroscopic zoo heev, nqus dej noo thiab nthuav dav puag ncig puag ncig, thaum tso dej noo thiab nyab hauv cov kev mob qhuav. Yog tias daim ntawv nyob hauv lub xeev tsis ruaj khov los yog poob noo noo thaum Stamping thaum Stamping, deformation yuav tshwm sim post- kev.

Elastic maculus ntawm tawv yog sib luag. Tawv nrog tus modastic tsawg yog qhov ua rau muaj kev cuam tshuam tseem ceeb hauv qab lub siab thov thaum lub sijhawm siv nyiaj. Ntxiv mus, nws yuav swb tag nrho nws cov qauv qub tom qab lub siab tso tawm, ua rau muaj kev cuam tshuam tsis zoo.

(B) Cov duab qhia txog cov duab piv txwv

Xav txog polyvinyl chloride (PVC) Yas. Vim nws cov neeg tsis zoo thermal stability, ntsuas qhov kub tsis raug mob thaum lub sij hawm ntawv ci tshaj li nws lub thermal decomposition kub- ua rau PVC molecules rau degrade. Qhov kev cuam tshuam no cuam tshuam roj zoo li hydrogen chloride, ua rau cov txheej txheem sab hauv xoob thiab volumetric shrinkage. Nyob rau hauv ib tug tiag - ntiaj teb ntau lawm pom tias muaj teeb meem Thiaj li, cov khoom tiav tau pom pom tias muaj shrinkage, ua rau muaj kev pov tseg tsis muaj pov tseg thiab khiav pa tawm.

(A) kev txiav txim siab tseem ceeb rau kev ntsuas kub

Kub cuam tshuam cov khoom siv thermal nthuav dav thiab decomposition. Rau cov ntaub ntawv nrog zoo thermal stability, xws li qee qhov kev ua haujlwm loj hlob, qhov hluav taws xob kub yuav tuaj yeem ua rau muaj kev sib xyaw ua ke ntawm cov ntawv ci thiab cov khoom sib txawv. However, excessive temperatures-even for thermally stable materials-can cause over-expansion, leading to shrinkage and deformation upon cooling. Piv txwv li, nrog polycarbonate (pc) khoom siv, cov khoom siv ntawv ci storoning kub ntau yog 120 {}}}}}}}}} 150 degree. Qhov kub nyhav tshaj 150℃nce pc lub ntsuas hluav taws xob thermal thermal thaum ua kom txias dua thiab muaj peev xwm ua tsis tau yooj yim.

Hloov siab, rau cov ntaub ntawv nrog cov neeg txom nyem stability stability, qhov ntsuas kub yuav tsum tau nruj me ntsis tswj, feem ntau khaws cia hauv qab nws qhov kev txiav txim siab kub ntxhov. Qhov tsim nyog ntawv ci stamping kub ntau ntau rau PVC feem ntau 80-110 degree.

(B) Siab Haum Hloov Mechanism

Lub siab cuam tshuam rau cov khoom siv tsis raug los ntawm ob lub tshuab. Ntawm ib sab tes, siab txaus siab kom nruj kev sib ze ntawm cov ntawv ci thiab khoom saum npoo av, lav tau stamping zoo. Ntawm qhov tod tes, ntau dhau induction yas deformation. Piv txwv li, thov kom ntau dhau siab thaum lub sijhawm ntim cov ntawv tshaj {{compresses cov ntawv tsis xwm yeem, wrinkles, thiab deformles. Yog li ntawd, siab yuav tsum tau hloov kho raws li cov ntaub tuab, hardness, thiab Elastic Modulus. Thinner papersession txo cov chaw siab qis, thaum plastics tuaj yeem tiv thaiv nws lub siab nyob hauv cov khoom siv thauj khoom.

(C) pom zoo kom lub sijhawm tsis muaj sij hawm

Stamping Duration yog qhov txuas rau cov khoom siv thaum muaj cua sov thiab deformation pheej hmoo. Lub sijhawm tsis txaus nyob tiv thaiv kev sib raug zoo ntawm cov ntawv ci thiab substrate, ua kom pom tseeb. Hloov siab, ntev ntev nthuav tawm cov kev kub siab ntxiv ua rau kev nthuav dav ntawm thermal thiab decomposition thiab decomposition, tsa shrinkage thiab deformation txaus ntshai. Muab cov hlau tawv pojniam ua piv txwv ua piv txwv, lub sijhawm tsim qauv rau cov ntaub ntawv feem ntau yog 1-3 vib nas this. Rau cov ntaub ntawv tuab lossis cov uas muaj cov neeg txom nyem thermal conductivity, lub sij hawm dwell lub sij hawm tuaj yeem muaj tsawg, tab sis feem ntau yuav tsum tsis pub dhau 5 vib nas this.

(A) kev ua tsis zoo thiab lawv qhov cuam tshuam

Lub cev muaj cua sov tsis ruaj khov yog ib txwm malfunction nyob rau hauv ntawv ci stamping machine. Yog tias cov cua sov ua tsis tiav kom xa cov ntsuas kub zoo ib yam, nws ua rau muaj qhov yooj yim hloov pauv thaum lub sijhawm stamping. Kev kub siab dhau heev txhawb nqa cov ntaub ntawv kev lom zem thiab tshaj-}}} kev nthuav dav thiab deformation thaum txias. Hloov siab, tsis txaus kub ua rau cov khoom lag luam tsis zoo ntawm cov ntawv nyiaj thiab cov khoom saum npoo av, cov khoom lag luam saum npoo av, cov khoom lag luam zoo. Piv txwv li, kev laus cov khoom kub hauv ib lub tshuab ua rau muaj kev hloov pauv hnyav, tsim cov khoom uas muaj cov ntawv ci hauv zej zog tsis muaj zog.

Malfunctioning siab txoj kev cai tswj kev mechanisms kuj ua rau muaj teeb meem tseem ceeb. Thaum lub siab tswj tau dhau los ua qhov tsis raug, tsis muaj peev xwm ua tau zoo tshwm sim. Kev ua rau ntau dhau los ua rau cov khoom siv hnyav heev deformation, thaum tsis muaj txiaj ntsig zoo ntawm yields tsis zoo cov txiaj ntsig tau. Ib qho piv txwv ntawm qhov no tau tshwm sim thaum lub siab puas kev tswj hwm valve tshwm sim tam sim ntawd kev ua kom sai, kev tsim cov ntawv sib sib zog nqus lossis tsim kev sib sib zog nqus, indentations indentations hauv tawv.

(B) Cov teeb meem kev ua haujlwm thiab lub txim

Cov Khoom Siv Ua Ntej Cov Khoom Siv Tsis Txaus Siab yog qhov sib luag. Cov cua kub tsis zoo ua rau cov khoom sib txuam tsis xwm yeem hla cov khoom saum npoo av -}}}} ib thaj chaw dhau los ua qhov kub heev, lwm qhov txias. Cov chaw uas muaj cua hlob heev yog qhov txaus ntshai los yog deformation, thaum muaj cov chaw txias txias, thaum muaj cov chaw txias tso tawm cov khoom ci tsis zoo. Piv txwv li, kev puas tsuaj hauv ib cheeb tsam rau lub tshuab cua sov ua rau muaj cua sov tsis sib xws, tsim cov khoom uas muaj cov khoom siv xim tsis sib xws thiab hauv zos shrinkage.

Uneven siab faib cov lus qhia rau cov khoom tsis sib xws, ua rau muaj kev cuam tshuam nrog cov cheeb tsam uas tau ntsib lub siab siab dua. Piv txwv li, ib qho kev xav tsis sib xws rau cov menyuam yaus coj mus rau qhov tsis xwm yeem hla cov khoom siv laim ntom ntawm cov khoom tiav.

(A) kev coj ua tsis raug thiab rau txim

Thaum lub sijhawm teeb tsa,Qhov chaw kub tsis raugsawv cev rau ib qho kev ua haujlwm ib txwm ua. Cov neeg ua haujlwm tuaj yeem ua tsis tau teeb meem kev ntsuas kub raws li cov ntaub ntawv tshwj xeeb raws li cov khoom siv kub siab lossis qis qis. Piv txwv li, yuam kev teeb tsa 180℃rau PVC cov khoom ua rau cov khoom lag luam loj.

Tsis muaj txhij cov khoom sivkuj ua rau muaj teeb meem. Thaum cov ntaub ntawv raug ua tsis raug cai lossis qhov chaw tsis ncaj, siab yog thov tsis sib xws thaum lub sijhawm stamping, ua rau kev tawm suab hauv zos. Piv txwv li, misaligned ntawv thaum stamping tshwm sim ntug wrinkling thiab distortion tom qab yob compression.

Tsis - cov txheej txheem ua haujlwm txheemIb yam li ntawd cuam tshuam cov khoom zoo. Nres tshuab nres lossis tsis sib xws pib nrawm thaum stamping tsim kev cuam tshuam tsis sib xws, ua rau cov khoom lag luam tsis sib xws.

(B) Cov txheej txheem tseem ceeb thiab cov txheej txheem qauv qauv

Cov neeg teb xov tooj kev kawm yog qhov tseem ceeb.Kev cob qhia kev kawm ua haujlwm rau cov neeg ua haujlwm nkag siab cov khoom siv thiab cov txheej txheem kom raug, muab cov khoom siv, thiab ua haujlwm pabcuam. Kev sivCov Txheej Txheem QauvUa tau zoo tiv thaiv kom zoo tsis xws luag. Piv txwv li, ib daim ntawv ci stamping entryPreed kev cob qhia kev cob qhia thiab nruj sib zog yuav tsum tau ua ntej tshaj tawm, thiab cov khoom siv khoom raug. Tom qab kev siv nyiaj pab, khoom shrinkage thiab deformation teeb meem tau txo qis.

(A) Kev txhim kho lub cev rov qab

Rov kho duayog ib qho txheej txheem kev kho lub cev. Me ntsis deformed khoom tuaj yeem rov kho cov pwm lossis jigs. Piv txwv li, kev sib tw yas me ntsis tom qab kev sib tw tuaj yeem muab tso rau hauv kev cai pwm thiab raug tswj hwm kom rov qab lub siab.

Kev Kho Cua Sovtseem tuaj yeem hais txog shrinkage lossis deformation. Qee cov ntaub ntawv siv hluav taws xob thermoplastic tuaj yeem softened los ntawm rov ua kom rov qab thiab tom qab ntawd kho hauv qab hau. Piv txwv li, ib daim shrunken pvc yam khoom tuaj yeem muab tso rau hauv chav cua sov, coj mus rau qhov ntsuas cua sov uas haum, thiab tom qab ntawd nias- tsim cov pwm kom tau cov pwm kom tau rov qab ua nws qhov ntev.

(B) Rov qab kho tshuaj lom neeg

Daim Ntawv Thov Txheej NtoUa haujlwm ua txoj kev kho tshuaj lom neeg. Rau cov khoom uas shrinkage lossis deformation muaj degraded nto zoo, thov ib coating tshwj xeeb tuaj yeem kho cov tsos thiab kev ua tau zoo. Piv txwv li cov khoom tawv, cov khoom lag luam tawv nthuav dav saum npoo tsis zoo tshaj tawm ua tsis tiav.

(C) tuav tsis yog -} cov khoom uas yooj yim

Rau yam khoom tsis muaj peev xwm,ua hauj lwmyog ib qho kev xaiv. Yog tias tsuas yog ib ntu tshwj xeeb tsuas yog puas, qhov yuam kev feem tuaj yeem tshem tawm thiab cov khoom rov qab- stamped. Txawm li cas los xij, yog tias cov khoom lag luam muaj kev puas tsuaj thiab ua haujlwm tsis yooj yim,daiyuav tsum tsim nyog. Thaum txhuam cov khoom, cov tuam txhab yuav tsum tau kawm, tshawb xyuas cov hauv paus cag, thiab siv kev ntsuas kom tiv thaiv kom rov muaj dua. Piv txwv li, tom qab tus tsav tsheb ntsuas kub teeb meem ua rau ib lub tuam txhab khoom siv hauv paus, ib lub tuam txhab ua cov haujlwm koom tes, thiab txhim kho nws cov txheej txheem tswj cov txheej txheem zoo.

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Lub ntsiab

Cov shrinkage lossis deformation ntawm cov khoom thaum lub tshuab kub stamping cuam tshuam nrog ntau yam, suav nrog cov khoom siv, cov neeg tsav tsheb {{0} {} {} {} {} {} {} {} {}} kev kho txoj kev. Cov Khoom Siv Cov Khoom Siv Daim Ntawv Ua Lub Hauv Paus - cov khoom sib txawv xav tau cov txheej txheem kub stamping. Txheej Txheem Parameter yog qhov tseem ceeb: kev ntsuas kub kom tsim nyog, lub siab, thiab lub zog thiab stampy tiv thaiv shrinkage lossis deformation. Cov khoom siv xwm txheej ua haujlwm ua tus lav: kev saib xyuas thiab kev tshuaj xyuas kom ua tau nws txoj haujlwm ib txwm muaj. Tus neeg teb xov tooj Kev Tsim Kho yog qhov txuas tseem ceeb: cov txheej txheem ua haujlwm ua haujlwm thiab kev qhia tuaj yeem txhim kho cov khoom lag luam zoo. Post {{6 {6} Kev kho txoj kev kho mob yog kev ntsuas kho kom haum tom qab muaj teeb meem tshwm sim; Kev xaiv kom muaj kuab ntawm kev kho mob tuaj yeem txo qis.

Yam xav tau

Nyob rau yav tom ntej, nrog kev nce qib nruam ntawm thev naus laus zis, kub stamping tshuab ua kev siv cov tshuab yuav tsum tau tsim kho. Smarter cov khoom tswj tswj cov tshuab tuaj yeem yog tiag {1} Kev saib xyuas cov khoom siv kub raws li cov khoom siv los txo cov kev cuam tshuam ntawm tib neeg. Daim ntawv thov ntawm ntau cov ntaub ntawv ib puag ncig ib puag ncig yuav tseem yuav ua ib qho kev hloov pauv - cov ntaub ntawv tshiab tsis tsuas yog muaj kev cuam tshuam hauv chav tsev zoo tab sis kuj yuav muaj kev cuam tshuam ib puag ncig. Los ntawm kev txhim kho ntawm cov thev naus laus zis, nws ntseeg tau tias qhov shrinkanies lossis deformation ntawm cov khoom hauv tshuab stamping kub yuav zoo dua qub zoo ntxiv.