Cov kav dej polyvinyl chloride (PVC) tau dhau los ua ib qho khoom siv niaj hnub no hauv kev tsim kho vaj tse, kev tsim kho, thiab kev siv dej. Lawv lub zog ruaj khov, pheej yig, thiab kev hloov pauv tau ua rau lawv yog qhov kev xaiv zoo rau ntau yam haujlwm. Tab sis koj puas tau xav tias cov kav dej no ua li cas?
Hauv phau ntawv qhia no, peb yuav kawm txog cov txheej txheem tsim cov yeeb nkab PVC uas nyuaj heev, txij thaum pib mus txog thaum kawg.
Kauj Ruam 1: Kev Npaj Khoom Siv Raw
Kev tsim cov yeeb nkab PVC pib nrog kev yuav cov khoom siv raw. Cov khoom xyaw tseem ceeb yog PVC resin, ib hom hmoov dawb uas tau los ntawm ethylene thiab chlorine. Cov khoom ntxiv, xws li cov stabilizers, fillers, thiab cov roj nplua nyeem, kuj tau muab tso rau hauv los txhim kho cov yam ntxwv thiab cov yam ntxwv ntawm kev ua cov yeeb nkab.
Kauj Ruam 2: Kev Sib Tov thiab Kev Sib Xyaws
Cov khoom siv raw uas ntsuas tau zoo ces muab xa mus rau lub tshuab sib tov ceev ceev, qhov chaw uas lawv sib tov kom huv si ua ib qho sib xyaw ua ke. Cov txheej txheem no, hu ua kev sib xyaw ua ke, ua kom cov khoom xyaw tau faib sib npaug zos, tsim cov khoom siv sib npaug zos rau cov kauj ruam tom ntej.
Kauj Ruam 3: Kev Rho Tawm
Cov khoom sib xyaw ua ke PVC ces muab tso rau hauv lub tshuab extruder, lub tshuab uas hloov cov khoom siv mus rau hauv ib qho profile txuas ntxiv. Lub extruder muaj ib lub thoob cua sov thiab lub tshuab ntsia hlau uas yuam cov PVC uas yaj los ntawm lub pwm. Cov duab ntawm lub pwm txiav txim siab qhov profile ntawm cov yeeb nkab, xws li tus qauv, daim ntawv teev sijhawm 40, lossis daim ntawv teev sijhawm 80.
Kauj Ruam 4: Txias thiab Ua Duab
Thaum cov yeeb nkab PVC uas raug nias tawm ntawm lub pwm, nws hla dhau lub qhov txias, qhov chaw uas dej lossis cua siv los ua kom cov khoom khov sai. Cov txheej txheem txias no tiv thaiv cov yeeb nkab kom tsis txhob hloov pauv thiab xyuas kom meej tias nws cov duab thiab qhov loj me yog qhov tsim nyog.
Kauj Ruam 5: Txiav thiab Ua tiav
Thaum twg txias lawm, cov yeeb nkab PVC raug txiav kom raws li qhov ntev uas xav tau siv cov tshuab txiav lossis lwm yam tshuab txiav. Tom qab ntawd cov kawg ntawm cov yeeb nkab raug txiav kom nkhaus lossis txiav kom yooj yim rau kev sib koom ua ke thiab kev teeb tsa.
Kauj Ruam 6: Kev Tswj Xyuas Zoo
Thoob plaws hauv cov txheej txheem tsim khoom, muaj kev tswj xyuas zoo kom ntseeg tau tias cov kav dej PVC ua tau raws li cov lus qhia uas yuav tsum tau ua. Qhov no suav nrog kev kuaj xyuas qhov loj me, kev sim siab, thiab kev kuaj xyuas qhov tsis zoo.
Kauj Ruam 7: Kev Khaws Khoom thiab Kev Faib Khoom
Cov kav dej PVC uas ua tiav lawm raug khaws cia thiab tuav kom zoo kom tsis txhob puas thiab tswj tau lawv qhov ruaj khov. Tom qab ntawd lawv raug ntim thiab xa mus rau cov neeg faib khoom thiab cov khw muag khoom kom siv rau ntau yam kev siv.
Lub Luag Haujlwm ntawm Cov Kab Ntau Lawm PVC
Cov kab ntau lawm yeeb nkab PVC ua lub luag haujlwm tseem ceeb hauv kev ua kom yooj yim thiab ua kom cov txheej txheem tsim khoom siv tau yooj yim. Cov txheej txheem tshwj xeeb no suav nrog txhua yam tshuab thiab khoom siv tsim nyog, txij li kev pub cov khoom siv raw mus rau kev ntim khoom kawg, kom ntseeg tau tias kev tsim cov yeeb nkab PVC zoo thiab ruaj khov.
Cov kab tsim cov yeeb nkab PVC niaj hnub no muaj cov txheej txheem tswj hwm siab heev uas saib xyuas thiab tswj ntau yam kev ntsuas, xws li qhov kub, siab, thiab qhov ceev ntawm extrusion. Qhov kev ua haujlwm tsis siv neeg no ua kom muaj kev tswj hwm meej ntawm cov txheej txheem tsim khoom, ua rau cov khoom zoo ib yam thiab txo cov khib nyiab.
Xaus lus
Kev tsim cov yeeb nkab PVC yog ib qho txheej txheem nyuaj thiab muaj ntau yam uas yuav tsum tau ua tib zoo xaiv cov khoom siv raw, kev sib tov kom raug, kev tswj kev rho tawm, kev txias, kev txiav, thiab kev tswj xyuas zoo. Cov yeeb nkab PVC uas tshwm sim yog cov khoom tseem ceeb hauv kev tsim kho vaj tse niaj hnub, kev tsim kho, thiab cov dej num, muab kev ruaj khov, pheej yig, thiab kev siv tau ntau yam.
Kev nkag siab txog cov txheej txheem tsim cov yeeb nkab PVC tsis yog tsuas yog muab kev nkag siab txog kev tsim cov khoom tseem ceeb no xwb tab sis kuj qhia txog qhov tseem ceeb ntawm kev tswj xyuas zoo thiab kev nce qib hauv kev siv tshuab los xyuas kom meej tias cov khoom zoo sib xws thiab kev tsim khoom zoo.
Lub sijhawm tshaj tawm: Lub Xya Hli-02-2024