(1)Hla-txuas rau cov pa taws tsawg xo Halogen Polyethylene (XLPE) cov khoom siv rwb thaiv tsev:
XLPE rwb thaiv tsev cov khoom yog tsim los ntawm compounding polyethylene (Ethylene vinyl acetate (Ethylene Vinyl acetate (ETCE), antioxidants, thiab lwm yam. Tom qab cov qauv kev tawm dag zog, PE hloov los ntawm cov qauv sib dhos rau hauv cov qauv peb-seem, hloov pauv ntawm cov khoom siv thermoplastic rau ib qho tsis txaus ntseeg yas.
XLPE rwb thaiv tsev cables muaj ob peb qhov zoo piv rau dolioplastic Pe:
1. Txhim kho kev tsis kam rau thermal deformation, txhim kho cov khoom siv tshuab ntawm cov kub, thiab txhim kho kev ntxhov siab ib puag ncig kev ntxhov siab thiab cua sov laus.
2. Txhim kho tshuaj ruaj khov thiab siv cov kuab tshuaj tiv thaiv, txo cov dej ntws qeeb, thiab tswj cov hluav taws xob. Ntev ntev ua haujlwm kub tuaj yeem ncav cuag 125 ° C rau 150 ° C. Tom qab hla kev ua tiav, qhov luv-taws hluav taws xob ntawm PE tuaj yeem nce mus rau qhov muaj peev xwm nce ntxiv rau cov xaim hluav taws xob tib yam.
3. XLpe-insulated cables kuj muaj cov khoom siv tsis muaj zog, ua rau cov xov hluav taws xob, cov ntaub ntawv hluav taws xob, ib puag ncig ntawm cov xov hluav taws xob, cov khoom siv hluav taws xob tsis muaj zog, cov khoom siv hluav taws xob, 1e-qib hluav taws xob, 1e-qib cables Cables, thiab fais fab kis clesles.
Cov lus qhia tam sim no hauv XLPE rwb thaiv tsev cov khoom kev txhim kho xws li PE fais fab cross cov ntaub ntawv, thiab irradiation cross-expardant polyolefrant polyolefin sheathing cov ntaub ntawv.
(2)Hla-Txuas Polypropylene (XL-PP) Rwb Thaiv Tsev Cov Khoom:
Polypropylene (PP), raws li ib qho yas, muaj cov khoom siv lub teeb, muaj tshuaj lom neeg zoo, yooj yim ntawm kev molding, thiab rov ua dua tshiab. Txawm li cas los xij, nws muaj kev txwv xws li muaj zog tsawg li tsawg zog, tseem ceeb shrinkage deformance, tsawg-kub tsis kam, thiab tsis muaj pa rau cov pa roj oxygen. Cov kev txwv no tau txwv nws siv hauv kev siv cable. Cov kws tshawb nrhiav tau ua haujlwm tau los hloov polypropylene cov ntaub ntawv los txhim kho lawv cov kev ua tau zoo, thiab irradiation reared hloov polypropylene (XL-PP) tau ua kom zoo rau cov kev txwv no.
XL-PP Insulated cov xov hlau tuaj yeem ntsib UL VW-1 nplaim taws kev xeem thiab ul-rated 150 ° C xo cov qauv. Hauv kev siv cable, Eva feem ntau sib xyaw nrog PE, PVC, PP, thiab lwm yam ntaub ntawv los kho cov khoom ua haujlwm ntawm cable txheej txheej txheej.
Ib qho ntawm qhov tsis zoo ntawm irradiation cross-txuas PP yog tias nws cuam tshuam nrog kev sib tw ntawm cov kev ua tsis tau zoo thiab cov molecule loj dawb radicals. Cov kev tshawb fawb tau pom tias qhov sib piv ntawm kev cuam tshuam los sib txuas kev sib txuas hauv PP iradiation raim-txuas yog kwv yees li 0.8 thaum siv gamma-ray irradiation. Txhawm rau ua tiav cov kev sib txuas zoo hauv PP, hla kev sib txuas ua choj yuav tsum tau ntxiv rau kev hla kev hla kev hla kev. Ib qho ntxiv, cov bally cross-txuas tuab yog txwv los ntawm kev nkag mus rau muaj peev xwm ntawm hluav taws xob ci thaum lub sijhawm irradiation. Irradiation ua rau kev tsim cov roj thiab ua npuas ncauj, uas yog qhov zoo dua rau cov khoom lag luam nyias tab sis txwv kev siv cov xaim tuab.
(3) Cross-txuas ethylene-vinyl acetate copolymer (xl-eva) cov khoom siv rwb thaiv tsev:
Raws li qhov kev thov rau cable kev nyab xeeb nce, kev txhim kho ntawm halogen-dawb nplaim-retardant cross-expled cables tau loj hlob sai heev. Piv rau PE, Eva, uas qhia txog Vinyl acetate monomers, muaj qis dua crystalloity, cuam tshuam tsis kam, muab cov khoom siv hluav taws xob, thiab muab cov khoom siv kub. Feem ntau, cov khoom ntawm Eva Resin nyob ntawm cov ntsiab lus ntawm vinyl acetate monomers hauv cov molecular. Siab dua vinyl acetate cov ntsiab lus ua rau muaj kev nce siab, hloov tau yooj yim, thiab tawv. Eva cob tau zoo heev muab ua kom tau zoo sib xws thiab hla kev sib txawv, ua rau nws nrov zuj zus hauv halogen-retardant cross-expardant crowned cables.
Eva cob nrog vinyl acetate cov ntsiab lus ntawm kwv yees li 12% rau 24% feem ntau siv hauv xaim thiab hluav taws xob. Hauv kev siv cable tiag tiag, Eva feem ntau xyaw nrog PE, PVC, PP, thiab lwm yam ntaub ntawv los kho cov kev ua tau zoo ntawm cable txheej txheej. Eva Cheebtsam tuaj yeem txhawb kev sib txuas sib txuas, txhim kho cable kev ua tau zoo tom qab kev sib txuas.
(4) Hla ethylene-propylene-diene monomer (XL-EPDM) Rwb Thaiv Tsev Khoom:
XL-EPDM yog Terpolymer muaj cov ethylene, propylene, thiab tsis-conjoulated diene monomers, hla kev sib txuas los ntawm kev tawm suab. XL-EPDM cable sib xyaw ua ke ntawm qhov zoo ntawm polyolefin-insulated cables, cov cable roj hmab-insulated cable:
1. Yooj yim, kev siv zog dua, tsis muaj txiaj ntsig ntawm qhov kub, thiab kev tiv thaiv ntev ntev (-60 ° C rau 125 ° C).
2. Ozone Kuj, UV Kuj, hluav taws xob rwb thaiv tsev kev ua haujlwm, thiab tsis kam mus rau tshuaj corrosion.
3. Kuj ua rau cov roj thiab cov kuab tshuaj piv rau General-hom phiaj chloroprene roj hmab rwb thaiv tsev. Nws tuaj yeem tsim tsim kev siv cov khoom siv kub extrusion ua, ua rau nws muaj nuj nqis.
XL-EPDM-insulated clesles muaj ntau cov ntawv thov, suav nrog tab sis tsis txwv rau tub yees compressors, mining xov tooj hluav taws xob, khoom siv kho mob.
Lub ntsiab tseem ceeb ntawm XL-EPDM cables suav nrog lub kua muag tsis zoo thiab tsis muaj zog cov khoom nplaum thiab tus kheej adhesive cov khoom, uas tuaj yeem cuam tshuam rau kev ua tiav.
(5) Silicone Roj Hmab Rwb Thaiv Tsev Khoom
Silicone roj hmab muaj txav yooj thiab zoo heev rau ozone, corona tawm, thiab nplaim taws, ua rau nws cov khoom siv zoo rau hluav taws xob rwb thaiv tsev. Nws qhov kev thov ua ntej hauv kev lag luam hluav taws xob yog rau cov xov hlau thiab cables. Silicone cov roj hmab roj hmab uas silicone thiab cov cables tshwj xeeb tshaj yog rau siv nyob rau hauv kev siv lub neej ntev thiab xav tau lub neej ntev piv rau cov qauv txheem. Cov kev siv hluav taws xob suav nrog cov tshuab hluav taws xob kub, tshuab hluav taws xob, cov tshuab hluav taws xob, cov cav hluav taws xob, thiab hluav taws xob ua haujlwm thiab tswj cov cab.
Tam sim no, Silicone roj hmab-insulated cables feem ntau cross-txuas nrog siv cov huab cua kub lossis cua sov siab. Kuj tseem muaj kev tshawb fawb txuas ntxiv mus siv hluav taws xob ci rau hla kev sib txuas silicone roj hmab, txawm hais tias nws tseem tsis tau dhau los hauv kev lag luam cable. Nrog rau kev nce qib tsis ntev los no nyob rau hauv irradiation hla thev naus laus zis, nws muaj tus nqi qis dua, muaj txiaj ntsig zoo, thiab cov kev hloov kho tus kheej ib puag ncig rau cov ntaub ntawv silicone roj hmab. Los ntawm Electron nqaj Irradiation lossis lwm yam hluav taws xob, kev sib txuas ntawm cov roj hmab silicone roj hmab tuaj yeem ua tiav kom tau raws li cov ntawv thov.
Li no, daim ntawv thov ntawm irradiation cross-txuas thev naus laus zis rau Silicone roj hmab Rwb thaiv tsev cov ntaub ntawv muaj kev cog lus tseem ceeb hauv cov xaim thiab kev lag luam cable. Cov thev naus laus zis no yuav txo cov nqi tsim khoom, txhim kho ntau lawm, thiab pab txhawb kom txo qis kev cuam tshuam rau ib puag ncig. Kev tshawb fawb yav tom ntej thiab kev tsim kho yuav tsav kev siv Irradiation Cross-rwb thev naus laus zis rau kev tsim cov khoom lag luam silicone, cov xov hlau ntau thiab cables hauv kev lag luam hluav taws xob. Qhov no yuav muab cov kev daws teeb meem ntau dua thiab ruaj khov rau ntau thaj chaw thov.
Lub Sijhawm Post: Sep-28-2023