Extruder Technology Innovation

Tuam Tshoj cov pa extruders thiab cov kab ntau lawm yog maj ua nrov nyob rau hauv lub thoob ntiaj teb kev ua lag luam nrog lawv zoo heev nqi-zoo. Nyob rau tib lub sij hawm, Tuam Tshoj tau tsis tu ncua innovated nyob rau hauv lub teb ntawm advanced extrusion technology thiab tsim ib tug ntau yam ntawm tshiab extrusion khoom. Precision extrusion tshuab ua tau raws li qhov xav tau ntawm kev ua haujlwm siab
Melt iav twj tso kua mis
Precision extrusion molding tuaj yeem tshem tawm qhov xav tau ntawm cov txheej txheem ua haujlwm tom ntej, ua kom tau raws li qhov xav tau ntawm cov khoom siv, thiab tib lub sijhawm ua tiav lub hom phiaj ntawm kev txo cov nqi khoom thiab txhim kho cov khoom zoo. Niaj hnub no, txhawm rau ua kom tau raws li qhov xav tau ntawm kev ncaj qha ncaj qha extrusion ntawm cov khoom yas, ntau yam kev paub tab tau qhia rau hauv kev ua lag luam, thiab cov twj tso kua mis polymer yaj yog ib qho tseem ceeb. Cov tshuab no tau siv dav hauv cov kab ntau lawm xws li cov tshuaj fiber ntau, cov yeeb yaj kiab, cov yeeb yaj kiab, cov kav dej, daim hlau, cables, composite extrusion, thiab granulation.
Tom qab xyoo ntawm kev tshawb fawb ntawm cov twj tso kua mis yaj, Cov Roj Hmab thiab Yas Tshuab Kev Tshawb Fawb Lub Tsev Haujlwm ntawm Beijing University of Chemical Technology tau ua tiav cov kev txhim kho thiab kev tshawb fawb ntawm cov yas yaj iav twj tso kua mis. Tam sim no nws muaj peev xwm tsim thiab tsim cov yas yaj iav twj tso kua mis cov khoom xws li 28/28 (nruab nrab nrug / hniav dav), 56/56, 70/70, 90/90, thiab lwm yam. Qhov siab tshaj plaws inlet thiab qhov hluav taws xob sib txawv tuaj yeem ncav cuag 30MPa , uas tuaj yeem ua tau raws li qhov yuav tsum tau muaj ntawm cov khoom sib txawv thiab tau siv rau hauv kev xyaum nrog cov txiaj ntsig zoo. Cov Roj Hmab thiab Yas Tshuab Tshawb Fawb Lub Tsev Kawm Ntawv ntawm Beijing University of Chemical Technology tau tsim thiab tsim 115 kev sib xyaw iav twj tso kua mis extruder los ntawm kev tshawb fawb tob ntawm cov iav twj tso kua mis extruder.
Cov twj tso kua mis kuj tseem muaj txiaj ntsig zoo rau qhov precision molding ntawm kev lag luam roj hmab. Txhawm rau ua kom tau raws li qhov xav tau hauv tsev rau roj hmab yaj iav twj, Beijing University of Chemical Technology kuj tau koom tes nrog Beijing Institute of Aeronautical Manufacturing Engineering thiab Hangzhou Chaoyang Rubber Co., Ltd. los koom tes tsim ob hom roj hmab yaj iav twj tso kua mis extruder units, XCP150. /100 thiab XCP120/90. Chav tsev no muaj cov yam ntxwv ua haujlwm zoo tshaj plaws, kom ntseeg tau tias lub ntim ntim extrusion yog linearly cuam tshuam nrog kev ceev ntawm lub iav twj tso kua mis, uas tuaj yeem ua tiav kev tswj xyuas cov zis thiab txhim kho qhov tseeb qhov tseeb ntawm cov khoom.
Multi-txheej co-extrusion tshuab matures thiab tsim
Multi-layer composite technology siv cov ntaub ntawv nrog nruab nrab thiab siab barrier zog rau composite nrog rau lwm cov ntaub ntawv ntim, thiab combines lub siab barrier zog ntawm barrier khoom nrog rau lwm yam ntaub ntawv ' pheej yig los yog tshwj xeeb mechanical, thermal thiab lwm yam khoom kom ua tiav cov kev xav tau tshwj xeeb. Cov qauv tsim ntawm co-extruded composite films maj mam xav kom nws muaj peev xwm ua tiav lub xeev zoo tshaj plaws ntawm kev sib koom ua haujlwm, thev naus laus zis, nqi, kev tiv thaiv ib puag ncig, kev nyab xeeb, thiab kev ua haujlwm thib ob, txhawm rau ua kom muaj peev xwm ntawm cov txheej txheem sib xyaw thiab ua ib qho ntawm technologies nrhiav los ntawm cov neeg muag khoom. Lub xya txheej zaj duab xis co-extrusion tshuab moulding tshuab ntawm Guangdong Jinming Plastic Equipment Co., Ltd. tuaj yeem suav tau tias yog ib qho piv txwv ntawm Tuam Tshoj txoj kev loj hlob hauv daim teb no.
Cov thev naus laus zis tseem ceeb tau txais los ntawm xya-txheej zaj duab xis co-extrusion tshuab moulding chav tsev suav nrog: ob lub luv luv thiab ib lub ntsia hlau ntev yas yas extrusion system nrog cov suab sib txawv, engineering tsom xam software txhawm rau txhim kho qhov tsim ntawm kev vibration-induced plasticizing ntaus ntawv, tiaj tus valve ntxiv tuag. lub taub hau thiab inclined valve ntxiv tuag lub taub hau, lub tshuab cua txias sab hauv thiab ob chav cua inlet tsis zoo siab txias tshuab, multi-component weightless metering feeding, online film thickness precision control system, computer centralized automatic control system thiab bus control (CANOPEN) technology, etc. [ 2]
Raws li tus naj npawb ntawm cov khaubncaws sab nraud povtseg nce, cov tshuab tsim cov yeeb yaj kiab uas hloov mus rau cov haujlwm tshwj xeeb kuj yog ib qho ntawm qhov kub ntawm kev lag luam kev loj hlob. Guangdong Shicheng tuam txhab tsim thiab tsim PP ib puag ncig tus phooj ywg ntoo grain zaj duab xis casting ntau lawm kab nrog ib tug dav ntawm 3150mm. Lub peev xwm ntawm cov kab ntau lawm no tshaj 800kg / h. Lub hau ntswj yog tsim los ntawm kev kub ceev shearing, sib tov thiab high-efficiency plasticizing ntsia hlau. Cov neeg siv khoom tuaj yeem siv ncaj qha siv cov hmoov calcium carbonate thiab cov xim tsis muaj xim toner, yog li txuag cov khoom siv raw khoom kim heev. Ntxiv rau kev tsim PP ib puag ncig tus phooj ywg ntoo grain zaj duab xis, tag nrho cov kab kuj tuaj yeem hloov pauv mus ua lwm yam khoom los nthuav cov neeg siv khoom ntau yam khoom. Thaum lub sij hawm sim ntau lawm txheej txheem ntawm Shicheng tuam txhab, tsis tsuas yog zoo nkauj PP ntoo grain zaj duab xis tau tsim, tab sis kuj CPP zaj duab xis, PP ntawv sau zaj duab xis thiab PP ntawv sau ntawv.
Tsim tshiab peb-ntsia hlau compounding tshuab
Parallel co-rotating ntxaib-ntsia hlau extruders yog siv rau compounding thiab granulation ntau lawm kab. Tom qab ntau tshaj 20 xyoo ntawm kev loj hlob sai, thev naus laus zis tau dhau los ua neeg paub tab. Ntawm qhov tod tes, tsoos intermeshing disc thiab reciprocating ntsia hlau extruders ua tau raws li cov kev xav tau ntawm high-filling compounding, thiab qib ntawm industrialization txuas ntxiv txhim kho.
Kev sib xyaw ua ke ntawm cov khoom siv polymer ua haujlwm siab
Txoj haujlwm "Cov cuab yeej tseem ceeb thiab kev tshawb fawb thev naus laus zis thiab kev txhim kho cov khoom siv polymer ua tau zoo raws li kev sib xyaw chaotic" sib koom ua ke los ntawm Huilong Company thiab South China University of Technology tau dhau los ntawm kev tshawb fawb thiab thev naus laus zis kev ua tiav ntawm Guangdong Provincial Department of Science thiab Technology thiab yeej lub teb chaws "Qhov khoom plig thib ob rau Kev Tshawb Fawb thiab Kev Tshawb Fawb Txog Kev Tshawb Fawb hauv 2007" [Certificate No.: 2007-257]. Qhov project "Chaotic mixing hom low-zog noj extruder nrog multi-sided ntsia hlau zawj convection ntsia hlau" muaj lub zog nominal piv ntawm 0.17 kW / kg / h, uas tsuas yog ib nrab ntawm lub teb chaws tus qauv ntawm 0.32 kW / kg / h, nrog rau tseem ceeb zog txuag. Tag nrho cov tshuab thiab cov khoom lag luam tau mus txog qib siab thoob ntiaj teb.
1Siv cov qauv rheological qauv thiab sib txuas nrog cov qauv micro-rheological uas tswj cov morphological evolution ntawm cov ntaub ntawv polymer, ntws teb nyob rau hauv extrusion ua ntawm polymer cov ntaub ntawv thiab morphological evolution ntawm blends thiab nanocomposites yog qauv, simulated thiab soj ntsuam. Tshwj xeeb, kev tshawb fawb theoretical ntawm melting, mixing thiab yaj ntws nyob rau hauv extruder qhia lub mechanism ntawm yuav ua li cas los txhim kho melting thiab mixing kev ua tau zoo thiab txo lub zog noj.
2 Raws li cov kev tshawb fawb theoretical saum toj no, cov tsim chaotic sib xyaw hom uas tsis muaj zog noj extruder yog qhov sib txawv hauv cov hauv paus ntsiab lus los ntawm cov extruders feem ntau siv nyob rau hauv tsev thiab txawv teb chaws: lub tom kawg undergoes classic Maddock melting txheej txheem thiab shear mixing, thiab nws melting thiab mixing cuam tshuam. yog neeg pluag; Lub qub tsim dispersed melting thiab chaotic mixing, thiab shear heat generated los ntawm cov khoom yog tsawg tshaj li lub tshav kub lub zog yuav tsum tau rau nws melting, uas yuav tiv thaiv tau cov khoom los ntawm overheating thiab nkim zog thaum lub melting thiab sib tov, thiab muaj ib tug tseem ceeb lub zog. -txuag nyhuv. Kev tshuaj xyuas ntawm qhov chaw los ntawm Guangdong Provincial Technical Supervision Mechanical Product Quality Supervision and Inspection Station qhia tau hais tias lub zog tshwj xeeb (xws li chav tsev noj) ntawm extruder yog 0.17 kW/kg/h, uas yog {{ 5}}.15 kW/kg/h qis dua tus nqi teev [0.32 kW/kg/h] ntawm lub teb chaws kev lag luam tus qauv JB/T 8061-96. Kev sib piv nrog cov extruders ntawm ob lub tuam txhab txawv teb chaws (Davis Standard Company ntawm lub tebchaws United States thiab Sumitomo Heavy Industries Niaj hnub nimno Tuam Txhab ntawm Nyiv) sawv cev rau qib siab tshaj plaws ntawm extrusion compounding nyob rau hauv lub ntiaj teb no niaj hnub no qhia tau hais tias lub extruder tsim nyob rau hauv qhov kev ua tau zoo muaj lub siab tshaj plaws extrusion tso zis thiab yog nruab nrog lub cev muaj zog qis tshaj plaws. Lub extruder kuj muaj qhov zoo ntawm qhov tsis tshua muaj extrusion yaj kub (10-20 degree qis dua) thiab cov khoom muaj zog adaptability.
⑶ Raws li cov saum toj no macroscopic flow field simulation thiab microscopic morphological evolution theoretical kev tshawb fawb, ua ke nrog cov tsim chaotic mixing low-zog noj extruder, morphological evolution, dispersion xeev thiab macroscopic zog ntawm polymer blends (tshwj xeeb tshaj yog cov uas muaj viscosity ratio nyob deb heev. 1) thiab nanocomposites (tshwj xeeb tshaj yog cov uas tsis yog-polar cov ntaub ntawv xws li polyolefins li matrix) tau kawm systematically, ua pov thawj tias chaotic mixing extruder tuaj yeem txhim kho kev ua tau zoo thiab txo cov kev siv hluav taws xob, tshwj xeeb tshaj yog cov stretching thiab folding cuam tshuam nws muab tau zoo rau tsim ntawm heev dispersed, nyias-daim ntawv, intercalated los yog peeled morphologies, uas rau ib tug tej yam kev daws teeb meem ntawm yooj yim agglomeration ntawm nanoparticles nyob rau hauv cov ntaub ntawv polymer ua, thiab zoo heev txhim kho lub barrier thiab mechanical zog ntawm ntim khoom.
(4) EVA pre-coated zaj duab xis yog tsim los ntawm extrusion siv chaotic mixing hom low-zog noj extruder. Piv nrog rau txoj kev sib xyaw ua ke ntawm EVA hauv cov kuab tshuaj lom thiab txheej txheej ntawm cov substrate, emissions ntawm cov kuab tshuaj lom thiab nws cov kuab paug rau ib puag ncig thiab kev puas tsuaj rau tib neeg lub cev raug tshem tawm; Tsis tas li ntawd, qhov kev ua tau zoo adhesion ntawm cov yeeb yaj kiab extruded thiab cov khoom sib xyaw ua ke tau zoo heev, ua kom paub txog "cov txheej txheem ntsuab sib xyaw yam tsis muaj adhesion txhawb".