Polystyrene yog ib qho ntawm cov yas siv ntau tshaj plaws.Expanded polystyrene, ib lub thermoplastic, melts thaum rhuab thiab puv khoom thaum txias.Nws muaj cov rwb thaiv tsev zoo tshaj plaws thiab kav ntev, tshwj xeeb cushioning thiab poob siab tsis kam, tiv thaiv kev laus thiab kev tiv thaiv dej, yog li nws tau siv dav hauv ntau yam xws li kev tsim kho, ntim khoom, khoom siv hluav taws xob thiab hluav taws xob, nkoj, tsheb thiab dav hlau tsim, khoom siv kho kom zoo nkauj, thiab kev tsim vaj tsev.dav siv.Ntau tshaj 50% ntawm lawv yog cov khoom siv hluav taws xob thiab hluav taws xob poob siab-absorbing ntim, cov thawv ntses thiab cov khoom ua liaj ua teb thiab lwm yam khoom ntim tshiab, uas ua rau peb lub neej zoo heev.
EPS chav sib sau - cov txheej txheem tseem ceeb hauv kev lag luam
Feem ntau EPS molding txheej txheem suav nrog cov kauj ruam tseem ceeb hauv qab no: ua ntej ua npuas dej → kho → molding.Pre-flashing yog muab EPS hlaws dai rau hauv lub thoob ntawm lub tshuab ua ntej flashing, thiab ua kom sov nrog chav kom txog thaum nws softens.Tus neeg sawv cev ua npuas dej (feem ntau yog 4-7% pentane) khaws cia hauv EPS hlaws yuav pib boil thiab vaporize.Cov roj hloov pauv pentane nce siab hauv EPS hlaws, ua rau lawv nthuav dav hauv ntim.Nyob rau hauv qhov tso cai foaming ceev, qhov xav tau foaming piv lossis particle gram hnyav tuaj yeem tau los ntawm kev kho qhov kub thiab txias ua ntej, chav siab, pub nyiaj, thiab lwm yam.
Cov khoom ua npuas ncauj tshiab yog mos thiab inelastic vim yog lub volatilization ntawm tus neeg sawv cev foaming thiab condensation ntawm residual foaming agent, thiab sab hauv yog nyob rau hauv lub nqus tsev vacuum thiab yog mos thiab inelastic.Yog li ntawd, yuav tsum muaj sij hawm txaus rau huab cua nkag mus rau hauv cov micropores hauv cov khoom ua npuas ncauj kom sib npaug ntawm sab hauv thiab sab nraud.Nyob rau tib lub sijhawm, nws tso cai rau cov khoom ua npuas ncauj txuas mus rau dissipate cov dej noo thiab tshem tawm cov hluav taws xob zoo li qub uas tsim los ntawm kev sib txhuam ntawm cov khoom ua npuas ncauj.Cov txheej txheem no hu ua curing, uas feem ntau yuav siv li 4-6 teev.Pre-expanded thiab qhuav hlaws dai yog pauv mus rau pwm, thiab chav yog ntxiv dua kom cov hlaws dai cohesive, thiab ces txias thiab demolded kom tau ib tug foamed khoom.
Nws tuaj yeem pom los ntawm cov txheej txheem saum toj no tias chav ua haujlwm yog qhov tseem ceeb ntawm lub zog thermal rau EPS hlaws ua npuas ncauj molding.Tab sis cov cua kub ntawm chav thiab qhov txias ntawm cov dej ntauwd kuj yog qhov tseem ceeb tshaj plaws ntawm kev siv hluav taws xob thiab cov pa roj carbon emission txuas hauv cov txheej txheem tsim khoom.Puas muaj lwm txoj kev siv hluav taws xob ntau dua rau kev sib xyaw ntawm cov khoom ua npuas ncauj yam tsis siv chav?
Electromagnetic yoj xov tooj cua zaus melting, Kurt Esa Group (tom qab no hu ua "Kurt") los ntawm lub teb chaws Yelemees muab lawv cov lus teb.
Qhov kev tshawb fawb txog kev hloov pauv thiab kev txhim kho thev naus laus zis no txawv ntawm cov txheej txheem nthwv dej ib txwm siv, uas siv xov tooj cua tsis muaj cua sov.Xov tooj cua yoj cua sov yog ib txoj kev cua sov uas tso siab rau cov khoom kom nqus tau cov xov tooj cua yoj lub zog thiab hloov mus rau hauv lub zog cua sov, kom tag nrho lub cev heats li tib lub sijhawm.Lub hauv paus ntawm nws realization yog lub dielectric alternating teb.Los ntawm lub siab-frequency reciprocating tsab ntawv tsa suab ntawm dipole molecules nyob rau hauv lub rhuab lub cev, "sab hauv kev sib txhuam kub" yog generated los mus nce qhov kub ntawm cov khoom rhuab.Yog tsis muaj cov txheej txheem cua sov, sab hauv thiab sab nraud ntawm cov khoom tuaj yeem ua kom sov.Tib lub sijhawm cua sov thiab cua sov ib txhij, cov cua kub ceev yog ceev thiab zoo ib yam, thiab lub hom phiaj cua sov tuaj yeem ua tiav los ntawm ib feem lossis ob peb feem kaum ntawm lub zog noj ntawm cov txheej txheem cua sov.Yog li ntawd, cov txheej txheem cuam tshuam no tshwj xeeb tshaj yog tsim rau kev nthuav dav hlaws nrog cov qauv polar molecular.Rau kev kho cov ntaub ntawv tsis-polar nrog rau EPS hlaws, nws tsuas yog tsim nyog siv cov khoom siv ntxiv.
Feem ntau, cov polymers tuaj yeem muab faib ua cov polar polymers thiab tsis yog-polar polymers, tab sis txoj kev faib tawm no feem ntau thiab tsis yooj yim los txhais.Tam sim no, polyolefins (polyethylene, polystyrene, thiab lwm yam) feem ntau yog hu ua non-polar polymers, thiab cov polymers uas muaj pawg polar nyob rau hauv sab saw hu ua polar polymers.Feem ntau, nws tuaj yeem txiav txim tau raws li qhov xwm txheej ntawm cov pab pawg ua haujlwm ntawm cov polymer, xws li polymers nrog amide pawg, nitrile pawg, ester pawg, halogens, thiab lwm yam yog polar, thaum polyethylene, polypropylene thiab polystyrene tsis muaj pawg polar. nyob rau ntawm cov saw hlau sib npaug, yog li cov polymer kuj tsis yog polar.
Uas yog hais tias, txoj kev tsim ntawm electromagnetic yoj xov tooj cua zaus melting tsuas yog xav tau hluav taws xob thiab huab cua, thiab tsis tas yuav nruab ib lub tshuab hluav taws xob los yog cov dej phwj txias txias ntauwd, uas yooj yim thiab yooj yim, thiab txuag lub zog thiab tiv thaiv ib puag ncig. .Piv nrog rau cov txheej txheem tsim khoom siv chav, nws tuaj yeem txuag tau 90% ntawm lub zog.Los ntawm kev tshem tawm qhov yuav tsum tau siv chav dej thiab dej, siv Kurtz WAVE FOAMER tuaj yeem txuag tau 4 lab litres dej hauv ib xyoos, uas yog sib npaug rau cov dej txhua xyoo ntawm tsawg kawg yog 6,000 tus neeg.
Ntxiv rau kev txuag hluav taws xob thiab kev tiv thaiv ib puag ncig, electromagnetic yoj xov tooj cua zaus melting kuj tuaj yeem tsim cov khoom ua npuas ncauj zoo.Tsuas yog siv cov khoom siv hluav taws xob hauv qhov ntau zaus tuaj yeem ua kom qhov zoo tshaj plaws melting thiab kev tsim cov khoom ua npuas ncauj.Feem ntau, qhov kev ruaj ntseg ntawm cov chav valve yog siab heev uas siv cov txheej txheem chav ua noj, txwv tsis pub nws yuav ua rau cov khoom me me dua li qhov loj me me tom qab txias.Sib txawv ntawm chav molding, lub shrinkage tus nqi ntawm cov khoom tsim los ntawm electromagnetic yoj xov tooj cua zaus melting molding yog txo, qhov seem stability yog ho txhim khu kev qha, thiab cov chav nqus ntawm cov npuas dej thiab cov seem ya raws thiab foaming tus neeg sawv cev nyob rau hauv cov pwm tshwm sim los ntawm condensation. raug txo kom tsawg.Ib daim video, cia peb kawm ua ke!
Tsis tas li ntawd, lub xov tooj cua zaus melting tshuab zoo heev txhim kho tus nqi rov qab ntawm cov ntaub ntawv foamed particle.Feem ntau, kev rov ua dua ntawm cov khoom ua npuas ncauj yog ua los ntawm mechanically lossis chemically.Ntawm lawv, cov txheej txheem rov ua dua tshiab yog txhawm rau txiav thiab yaj cov yas ncaj qha, thiab tom qab ntawd siv nws los npaj cov khoom siv rov ua dua tshiab, thiab cov khoom siv feem ntau qis dua cov qub polymer (Daim duab 1).Cov tau txais me me molecules yog siv los ua raw khoom los npaj cov khoom ua npuas ncauj tshiab.Piv nrog rau txoj kev siv tshuab, kev ruaj ntseg ntawm cov khoom ua npuas ncauj tshiab yog txhim kho, tab sis cov txheej txheem muaj zog noj thiab tsis tshua muaj nqi rov qab.
Ua piv txwv ntawm polyethylene yas, qhov decomposition kub ntawm cov khoom no yuav tsum siab tshaj 600 ° C, thiab tus nqi rov qab ntawm ethylene monomer yog tsawg dua 10%.Lub EPS ua los ntawm cov txheej txheem ib txwm siv tau tuaj yeem rov ua dua li 20% ntawm cov khoom siv, thaum EPS tsim los ntawm xov tooj cua zaus fusion tshuab muaj tus nqi rov ua dua ntawm 70%, uas zoo kawg nkaus haum lub tswv yim ntawm "kev txhim kho ruaj khov".
Tam sim no Kurt txoj haujlwm "Kev Siv Tshuaj Tsis Pub Siv Khoom Siv EPS los ntawm Xov Tooj Cua Frequency Fusion Technology" tau yeej xyoo 2020 Bavarian Energy Prize.Txhua ob xyoos, Bavaria muab khoom plig rau cov neeg ua tiav hauv lub zog, thiab Bavarian Energy Prize tau dhau los ua ib qho khoom plig zoo tshaj plaws hauv lub zog.Hauv qhov no, Rainer Kurtz, CEO ntawm Kurtz Ersa, tau hais tias: "Txij li thaum nws tsim nyob rau hauv 1971, Kurtz tau txuas ntxiv ua tus thawj coj ntawm kev tsim ua npuas ncauj molding kev lag luam, thiab tau txuas ntxiv txhim kho cov txheej txheem ruaj khov los pab txhawb kev tsim khoom hauv ntiaj teb. .Kev pab.Txog tam sim no, Kurtz tau tsim ntau yam kev lag luam ua lag luam patented technologies.Ntawm lawv, Kurtz WAVE FOAMER - xov tooj cua yoj ua npuas ncauj molding txheej txheem thev naus laus zis, uas tsis yog tsuas yog txuag hluav taws xob thiab ib puag ncig tus phooj ywg, tab sis kuj tuaj yeem tsim ua npuas dej zoo, nws tau hloov tag nrho Cov Khoom Siv Ua Npuas Ncauj, tsim lub neej yav tom ntej ntsuab. rau sustainable ua npuas ncauj ua ".
Tam sim no, Kurt's xov tooj cua yoj ua npuas ncauj moulding tshuab tau pib loj-tsim EPS ua npuas ncauj khoom.Nyob rau hauv lub neej yav tom ntej, Kurt npaj yuav siv cov cuab yeej no rau cov ntaub ntawv degradable thiab EPP cov ntaub ntawv.Ntawm txoj kev ntawm kev txhim kho kom ruaj khov, peb yuav mus ntxiv thiab ntxiv nrog peb cov neeg siv khoom.
Post lub sij hawm: Jun-20-2022