Raws li cov xov hluav taws xob nruab nrab thiab siab, cov xov hluav taws xob tshiab, cov xov hlau tsheb ciav hlau, thiab cov chaw sib txuas lus txuas ntxiv mus, cov chaw tsim khoom cable tab tom muab qhov tseem ceeb dua rau kev ntseeg tau ntev ntawm cov ntaub ntawv cable. Ntxiv rauCov tshuaj XLPE rwb thaiv tsev, cov tshuaj tiv thaiv semiconductive ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab qhov kev faib tawm ntawm lub zog hluav taws xob, kev ua haujlwm rwb thaiv tsev, thiab lub neej ntev ntawm cov xov hluav taws xob.
Ethylene Ethyl Acrylate (EEA) yog siv dav ua cov resin rau semiconductive shielding compounds hauv cov xov hluav taws xob XLPE nruab nrab thiab siab. Ua tsaug rau nws qhov kev sib raug zoo zoo heev, kev tiv taus thermal aging, kev hloov pauv qis-kub, thiab kev ua haujlwm ruaj khov, EEA tau dhau los ua ib qho ntawm cov ntaub ntawv polymer tseem ceeb siv hauv cov khoom siv cable ua haujlwm siab.
Vim li cas EEA thiaj siv rau hauv Semiconductive Shielding Compounds?
EEA yog ib qho polar ethylene copolymer uas tsim los ntawm kev sib xyaw ua ke ntawm cov ethylene thiab ethyl acrylate hauv qab cov xwm txheej siab. Kev qhia txog cov pab pawg polar ester rau hauv cov saw polymer muab EEA ntau qhov zoo dua li cov LDPE thiab EVA ib txwm muaj, ua rau nws tsim nyog rau cov khoom siv tiv thaiv semiconductive.
Nws cov qauv polar txhim kho kev sib raug zoo nrog cov pa roj carbon dub conductive, tso cai rau cov khoom sau kom tawg ua ntau dua thiab tsim kom muaj lub network conductive ruaj khov. Qhov no pab tswj kev ua hluav taws xob sib xws thoob plaws hauv txheej semiconductive shielding.
EEA kuj muaj kev ywj pheej zoo heev rau qhov kub qis, kev tiv thaiv kev ntxhov siab ib puag ncig (ESCR), thiab kev tiv thaiv kev laus thermal, ua rau cov txheej tiv thaiv khaws cia nws cov khoom siv kho tshuab thiab hluav taws xob thaum lub sijhawm ua haujlwm ntev. Piv nrog EVA, EEA muab kev ruaj khov thermal zoo dua hauv cov kub cable extrusion ib txwm muaj thiab tsis tso tawm cov khoom siv corrosive xws li acetic acid thaum lub sijhawm ua tiav, ua rau nws yooj yim dua rau cov khoom siv.
Cov Ntawv Thov Tseem Ceeb ntawm EEA hauv Cov Khoom Siv Cable
Daim ntawv thov tseem ceeb ntawm EEA hauv kev lag luam cable yog ua cov resin puag rau cov khoom siv tiv thaiv semiconductive siv rau hauv cov xov hluav taws xob nruab nrab- thiab siab-voltage XLPE.
Ib txoj hlua fais fab nruab nrab lossis siab muaj cov ntaub thaiv hluav taws xob, XLPE rwb thaiv tsev, ib daim ntaub thaiv rwb thaiv tsev, thiab ib daim ntaub thaiv hlau. Raws li lub hauv paus polymer hauv cov khoom siv tiv thaiv semiconductive, EEA txhim kho kev sib kis ntawm cov pa roj carbon dub conductive, txhim kho kev ruaj khov ntawm cov txheej tiv thaiv hluav taws xob, thiab txhawb kev sib txuas zoo rau XLPE rwb thaiv tsev. Cov yam ntxwv no pab txo qhov kev pheej hmoo ntawm kev tso tawm ib nrab thiab txhim kho kev ntseeg siab mus sij hawm ntev ntawm lub kaw lus rwb thaiv tsev cable.
Ntxiv rau cov xov hluav taws xob, EEA kuj tseem siv rau hauv cov xov hluav taws xob tshiab, cov xov hlau tsheb ciav hlau, thiab lwm yam khoom siv cable ua haujlwm siab.
Vim li cas thiaj muaj ntau cov khoom siv tiv thaiv semiconductive siv EEA?
Raws li cov chaw tsim khoom siv cable txuas ntxiv nrhiav kev ntseeg siab dua, EEA tau dhau los ua qhov kev xaiv nrov dua rau cov tshuaj tiv thaiv semiconductive. Nws qhov kev sib raug zoo zoo heev ntawm cov pa roj carbon dub, kev tiv taus kev laus thermal, kev hloov pauv qis-kub, thiab kev ruaj khov ua rau cov tshuaj tiv thaiv kom tswj tau qhov kev ua tau zoo tas li hauv qab cov xwm txheej ua haujlwm nyuaj.
Lwm qhov zoo tseem ceeb yog nws qhov kev sib txuas lus zoo rau XLPE rwb thaiv tsev, uas pab txo qhov tsis zoo ntawm qhov sib txuas thiab txo qhov kev pheej hmoo ntawm kev tso tawm ib nrab. Ua ke nrog nws lub qhov rais ua tiav dav, EEA kuj tseem pab txhawb kev ruaj khov ntawm extrusion thiab kev sib xws ntawm cov khoom, ua rau nws yog cov khoom siv zoo rau cov khoom siv tiv thaiv semiconductive hauv cov xov hluav taws xob nruab nrab thiab siab.
Cov Kev Xav Txog Kev Ua Haujlwm rau EEA
Yuav kom ua tau zoo tshaj plaws ntawm EEA hauv cov khoom sib xyaw cable, cov chaw tsim khoom yuav tsum xaiv qib tsim nyog raws li cov ntsiab lus ethyl acrylate (EA), yaj ntws nrawm (MFR), tsim cable, thiab cov kev cai ua tiav. Qhov kub ntawm extrusion kuj tseem yuav tsum tau tswj hwm hauv qhov ntau yam pom zoo kom tiv thaiv kev puas tsuaj thermal.
Rau cov tshuaj semiconductive shielding uas muaj cov khoom puv nkaus, yuav tsum ziab kom qhuav ua ntej extrusion kom txo cov npuas thiab cov qhov tsis zoo ntawm qhov chaw. Rau cov tshuaj crosslinkable semiconductive shielding, cov txheej txheem crosslinking yuav tsum tau tswj kom zoo kom ntseeg tau tias muaj kev ua haujlwm hluav taws xob ruaj khov thiab tiv taus kev laus thermal.
Xaus lus
Raws li cov xov hluav taws xob nruab nrab thiab siab, cov xov hluav taws xob tshiab, thiab cov xov hlau tsheb ciav hlau txuas ntxiv xav tau kev ntseeg siab dua, kev ua tau zoo ntawm cov tshuaj tiv thaiv semiconductive tau dhau los ua qhov tseem ceeb dua. Nrog nws cov khoom sib xws zoo heev, kev tiv taus kev laus thermal, kev hloov pauv kub qis, thiab kev ruaj khov ntawm kev ua haujlwm, EEA tau dhau los ua ib qho ntawm cov resins nyiam rau cov tshuaj tiv thaiv semiconductive ua tau zoo.
Rau cov chaw tsim khoom siv cable, xaiv qib EEA zoo thiab ua kom zoo dua cov qauv nrog cov pa roj carbon dub conductive, cov kab ke sib txuas, thiab cov xwm txheej ua tiav tsim nyog tuaj yeem txhim kho kev ruaj khov ntawm kev ua tiav, kev sib xws ntawm cov khoom, thiab kev ntseeg siab mus sij hawm ntev ntawm cov kab ke rwb thaiv tsev cable.
Lus Ceeb Toom: Cov ntaub ntawv muab rau hauv tsab xov xwm no tsuas yog rau kev siv xwb. Qhov kev ua tau zoo tiag tiag ntawm EEA yuav txawv nyob ntawm qib, kev tsim qauv, thiab cov xwm txheej ua tiav. Kev sim hauv qab cov xwm txheej thov tshwj xeeb raug pom zoo ua ntej siv.
Lub sijhawm tshaj tawm: Lub Rau Hli-30-2026