Hauv kev lag luam niaj hnub no, kev tsim khoom ntawmcov yeeb nkab polyethylene (PE) Nyob rau hauv txoj haujlwm tseem ceeb heev. Txawm hais tias nws yog nyob rau hauv cov dej xa mus rau hauv nroog, cov tes hauj lwm xa roj, kev ywg dej ua liaj ua teb, lossis ntau yam kev siv kav dej hauv cov haujlwm tsim kho, cov kav dej PE tau txais kev nyiam heev rau lawv qhov kev ua tau zoo heev thiab kev siv dav. Yog li, cov kav dej polyethylene raug tsim tawm li cas? Hnub no, cia peb nkag mus rau hauv kev lag luam yas yeeb nkab extrusion ua ke los tshawb nrhiav cov lus zais tom qab cov txheej txheem ntau lawm no.
I. Kev Taw Qhia: Cov Ntsiab Lus Tseem Ceeb thiab Cov Kauj Ruam Tseem Ceeb hauvKev Tsim Khoom Yeeb Nkab PE
Lub hauv paus ntawm PE yeeb nkab thiab cov khoom siv yog cua sov, yaj, sib tov cov khoom siv raw, thiab tom qab ntawd xa lawv mus rau hauv ib lub duab tshwj xeeb, ua raws li kev tswj hwm lub duab ntawd thaum lub sijhawm txias. Cov kauj ruam no yog qhov tseem ceeb rau kev tsim cov yeeb nkab phab ntsa khov kho, cov yeeb nkab phab ntsa profile, nrog rau kev sib tsoo thiab txhaj tshuaj pwm. Hauv cov txheej txheem tsim khoom nyuaj thiab zoo no, lub extruder yeej ua lub luag haujlwm tseem ceeb. Lub extruder zoo li tus kws ua haujlwm txawj ntse, maj mam ua cov khoom siv raw xws li polyethylene resin rau hauv cov duab ntawm cov yeeb nkab uas ua tau raws li qhov xav tau.
Hauv Suav teb, tom qab ntau xyoo ntawm kev txhim kho, kev lag luam yas extrusion tau pom qhov tshwm sim ntawm ntau lub tuam txhab muaj zog, ua lub zog tseem ceeb hauv kev tsim khoom thoob ntiaj teb ntawm cov yeeb nkab yas extrusion khoom siv. Cov chaw tsim khoom extruder Suav teb zoo, xws li Blesson, muaj lawv cov extruders thiab txhawb nqaCov kab ntau lawm ntawm PE yeeb nkab siv dav hauv kev lag luam hauv tsev thiab thoob ntiaj teb. Cov lag luam no tsis yog tsuas yog muaj cov thev naus laus zis siab heev xwb tab sis kuj tseem pheej nqis peev rau kev tshawb fawb thiab kev txhim kho thiab kev tsim kho tshiab, siv zog los muab cov tuam txhab tsim cov yeeb nkab yas nrog cov khoom siv tsim khoom zoo, ruaj khov, thiab ntse.
II. Cov Txheej Txheem Nthuav Dav ntawm Kev Tsim Cov Yeeb Nkab PE
1. Cov Khoom Siv Raw Npaj Theem
Kauj ruam thawj zaug hauv kev tsim cov yeeb nkab PE yog kev xaiv thiab npaj cov khoom siv raw. Polyethylene resin yog cov khoom tseem ceeb, thiab nws qhov zoo thiab kev ua tau zoo cuam tshuam ncaj qha rau qhov zoo ntawm cov yeeb nkab kawg. Cov polyethylene resin zoo muaj kev ruaj khov zoo, tiv taus corrosion, thiab lub zog kho tshuab. Nyob rau theem no, cov khoom siv raw raug tshuaj xyuas kom meej tias tag nrho lawv cov ntsuas tau raws li qhov yuav tsum tau ua.
2. Cov Txheej Txheem Ua Haujlwm Tseem Ceeb ntawm Extruder
(1) Kev Ua Kub thiab Kev Yaj
Lub hau ntswj ntawm lub extruder yog qhov tseem ceeb hauv tag nrho cov txheej txheem cua sov thiab yaj. Thaum cov khoom siv raw nkag mus rau hauv lub thoob ntawm lub extruder, lub hau ntswj pib tig hauv qab lub cev muaj zog. Sab nraud ntawm lub thoob muaj lub tshuab cua sov siab heev uas tuaj yeem tswj tau qhov kub hauv lub thoob kom meej. Thaum lub hau ntswj tig, cov khoom siv raw raug thawb mus tom ntej hauv lub thoob tas li. Lub caij no, nyob rau hauv qhov kev ua ntawm lub zog shear muaj zog thiab kev sib txhuam, lawv maj mam cua sov thiab yaj mus rau hauv ib qho yaj sib xws. Cov txheej txheem no xav tau kev tswj qhov kub thiab txias kom meej thiab lub hau ntswj tig ceev kom ntseeg tau tias cov khoom siv raw tuaj yeem yaj tag nrho thiab qhov zoo ntawm cov yaj sib xws.
(2) Kev Sib Tov thiab Kev Ua Yas
Thaum lub sijhawm yaj, lub extruder kuj ua haujlwm sib tov ntau yam khoom ntxiv nrog cov polyethylene yaj. Kev tsim qauv tshwj xeeb ntawm lub hau ntswj, xws li cov duab thiab kev faib tawm ntawm cov xov hauv qhov sib tov, ua rau cov khoom ntxiv kom sib npaug hauv cov yaj. Cov txheej txheem sib tov thiab plasticizing no yog qhov tseem ceeb heev rau kev txhim kho kev ua tau zoo ntawm cov kav dej. Kev sib tov sib xyaw ua ke tuaj yeem ua kom cov kav dej muaj cov khoom siv lub cev sib xws thoob plaws hauv qhov hla thiab zam kev puas tsuaj hauv zos lossis kev ua tau zoo sib txawv. Piv txwv li, cov extruders tsim los ntawmBlesson muaj cov qauv ntsia hlau uas tau dhau los ntawm ntau qhov kev sim thiab kev ua kom zoo dua, ua rau muaj kev sib xyaw zoo thiab cov teebmeem yas thiab tsim cov PE yaj zoo.
(3) Kev Thauj Khoom thiab Kev Ua Duab
Cov khoom sib xyaw ua ke thiab cov yas yaj raug thawb mus tom ntej los ntawm lub hau ntswj thiab tom qab ntawd dhau los ntawm lub pwm ntawm lub taub hau ntawm lub extruder. Thaum cov yaj hla dhau lub pwm, nws yuav nyob hauv qab qee qhov siab, ua rau nws lo rau ntawm phab ntsa sab hauv ntawm lub pwm, yog li pib tsim cov duab ntawm cov yeeb nkab. Lub sijhawm no, cov yeeb nkab tseem nyob rau hauv lub xeev molten kub siab thiab xav tau kev kho ntxiv kom kho nws cov duab thiab txhim kho nws cov kev ua tau zoo.
3. Theem Txias thiab Ua Duab
Cov yeeb nkab kub siab uas raug rho tawm ntawm lub pwm tam sim ntawd nkag mus rau hauv lub kaw lus txias. Kev txias dej tuaj yeem tshem tawm qhov kub ntawm cov yeeb nkab sai sai, ua rau nws txias thiab khov sai. Cov dej hauvlub tank txias yuav ncig mus tas li kom tswj tau qhov txias kom ruaj khov. Kev tswj qhov ceev thiab lub sijhawm txias kom raug yog qhov tseem ceeb heev. Kev txias sai dhau yuav ua rau muaj kev ntxhov siab sab hauv cov yeeb nkab, cuam tshuam rau nws txoj kev ua haujlwm mus sij hawm ntev; kev txias qeeb dhau yuav txo qhov ua tau zoo ntawm kev tsim khoom.
4. Kev thauj khoom thiab Txiav Theem
Tom qab txias lawm, cov yeeb nkab muaj qee qib ntawm qhov nyuaj thiab lub zog, tab sis nws tseem yuav tsum tau khaws cia rau hauv lub xeev ruaj khov linear txav mus los ntawmlub tshem tawm unitLos ntawm kev kho qhov ceev ntawm kev tig thiab lub zog rub ntawm lub log rub, qhov ceev ntawm extrusion thiab phab ntsa tuab ntawm cov yeeb nkab tuaj yeem tswj tau. Thaum cov yeeb nkab ncav cuag qhov ntev uas tau teem tseg, lub cuab yeej txiav yuav txiav nws tawm. Qhov tseeb thiab kev ua haujlwm zoo ntawm tus txiav ncaj qha cuam tshuam rau qhov zoo ntawm cov yeeb nkab thiab cov zis.
5. Kev Tshuaj Xyuas Zoo thiab Theem Ntim Khoom
Cov yeeb nkab PE uas tsim tawm tsis tau nkag mus rau hauv kev ua lag luam ncaj qha tab sis yuav tsum tau kuaj xyuas zoo heev. Cov khoom kuaj xyuas suav nrog qhov zoo ntawm cov yeeb nkab, xws li seb puas muaj qhov tawg, npuas, khawb, thiab lwm yam tsis zoo; qhov tseeb ntawm qhov ntev, xws li txoj kab uas hla sab nraud, tuab ntawm phab ntsa, thiab ntev, kom pom tias lawv puas ua tau raws li cov qauv; thiab kev sim khoom siv lub cev, xws li lub zog tensile, elongation thaum tawg, thiab lub zog hydrostatic.
III. Qhov Xwm Txheej Tam Sim No thiab Kev Loj Hlob ntawm Tuam Tshoj Kev Lag Luam Yas Yeeb Nkab Extrusion
Ua ib lub teb chaws tsim khoom loj hauv ntiaj teb, Tuam Tshoj kuj tau ua tiav cov txiaj ntsig zoo kawg nkaus hauv kev lag luam yas yeeb nkab extrusion. Ntau lub tuam txhab tsim khoom extruder hauv Suav teb tau txhim kho lawv cov thev naus laus zis thiab peev xwm tsim khoom, muab ntau cov extruders thiab cov kab tsim yeeb nkab zoo rau ob qho kev lag luam hauv tsev thiab thoob ntiaj teb.
NojBlesson Piv txwv li, ua ib lub tuam txhab tsim khoom extruder hauv Suav teb uas paub zoo, nws tau nqis peev ntau heev rau kev tshawb fawb thiab kev txhim kho thev naus laus zis. Lub tuam txhab muaj pab pawg R & D zoo uas niaj hnub tshawb nrhiav cov thev naus laus zis thiab cov txheej txheem extrusion tshiab.
Ntxiv rau, nrog rau kev txhim kho tas mus li ntawm kev paub txog kev tiv thaiv ib puag ncig thiab kev thov nce ntxiv rau cov kav dej ua haujlwm siab hauv kev ua lag luam, Tuam Tshoj txoj kev lag luam yeeb nkab yas kuj tseem niaj hnub tsim kho tshiab thiab hloov pauv. Ntawm ib sab tes, cov tuam txhab lag luam them sai sai rau kev tiv thaiv ib puag ncig thiab kev ruaj khov hauv kev xaiv cov khoom siv raw, nquag tshawb fawb thiab tsim cov ntaub ntawv polyethylene uas lwj tau lossis siv cov ntaub ntawv rov ua dua tshiab rau kev tsim khoom kom txo qhov cuam tshuam rau ib puag ncig. Ntawm qhov tod tes, hais txog kev txhim kho kev ua tau zoo ntawm cov kav dej, cov hom yeeb nkab tshiab nrog kev tiv thaiv siab dua, kev tiv thaiv corrosion, thiab kev tiv thaiv huab cua tau tsim kho tas mus li kom ua tau raws li cov kev xav tau tshwj xeeb ntawm cov haujlwm xws li kev xa roj thiab roj av tob thiab cov haujlwm kav dej hauv thaj chaw uas muaj huab cua hnyav.
Yav tom ntej, Tuam Tshoj txoj kev lag luam yas yeeb nkab extrusion yuav txuas ntxiv mus kom muaj kev loj hlob zoo. Nrog rau kev siv tob ntawm "Ua nyob rau hauv Tuam Tshoj 2025", kev lag luam yuav txhim kho ntxiv mus rau hauv kev txawj ntse, ntsuab, thiab qib siab. Kev txhim kho qib siab yuav txhawb kev txhim kho tas mus li ntawm kev sib tw ntawm Tuam Tshoj cov khoom siv yas yeeb nkab extrusion hauv kev lag luam thoob ntiaj teb, ua rau nws muaj peev xwm sib tw nrog cov npe nrov thoob ntiaj teb thiab ua tiav cov kev tshawb pom zoo dua hauv qee qhov chaw siab.
Xaus lus, kev tsim cov yeeb nkab polyethylene yog ib qho txheej txheem nyuaj uas muaj ntau yam kev sib txuas thiab thev naus laus zis. Kev lag luam yeeb nkab yas extrusion hauv Suav teb twb tau ua tiav cov txiaj ntsig zoo kawg nkaus hauv daim teb no thiab muaj kev cia siab dav dav. Los ntawm kev npaj cov khoom siv raw kom zoo mus rau kev ua tiav zoo los ntawm lub tshuab extruder, thiab tom qab ntawd mus rau kev txias thiab kev ua duab,kev thauj khoom thiab txiav, nrog rau kev tshuaj xyuas zoo thiab ntim khoom nruj, txhua qhov txuas qhia txog kev txawj ntse thiab kev siv zog ntawm cov kws tshaj lij hauv kev lag luam. Nrog rau kev nce qib tas mus li ntawm thev naus laus zis thiab kev hloov pauv tas mus li ntawm kev thov ua lag luam, peb muaj laj thawj ntseeg tias kev tsim cov yeeb nkab PE yuav muab cov kev daws teeb meem zoo dua thiab txhim khu kev qha dua rau kev tsim kho vaj tse thoob ntiaj teb thiab kev txhim kho kev lag luam yav tom ntej.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-29-2024