Tam sim no, cov khoom siv hluav taws xob siv hluav taws xob siv hluav taws xob tau faib ua peb pawg: PE, PVC, thiab XLPE.Cov hauv qab no qhia txog qhov sib txawv ntawm cov ntaub ntawv insulating PE, PVC, thiab XLPE siv hauv cables.
Explanation ntawm kev faib tawm thiab cov yam ntxwv ntawm cov ntaub ntawv cable insulating
PVC: Polyvinyl chloride, ib tug polymer tsim los ntawm cov dawb polymerization ntawm vinyl chloride monomers nyob rau hauv tej yam kev mob.Nws muaj cov yam ntxwv ntawm kev ruaj ntseg, acid tsis kam, alkali tsis kam, corrosion kuj, thiab kev laus tsis kam, thiab yog dav siv nyob rau hauv lub tsev cov ntaub ntawv, cov khoom siv niaj hnub, cov kav dej thiab cov kav dej, cov xov hlau thiab cov cables, thiab cov ntaub ntawv sib khi.Nws tau muab faib ua cov mos mos thiab tawv: cov muag muag feem ntau yog siv los ua cov ntaub ntawv ntim khoom, cov yeeb yaj kiab ua liaj ua teb, thiab lwm yam, thiab tau siv dav hauv kev tsim cov hlau thiab cable rwb thaiv tsev txheej, xws li zoo tib yam polyvinyl chloride insulated fais fab cables;thaum cov tawv tawv feem ntau yog siv los ua cov kav dej thiab daim hlau.Qhov loj tshaj plaws ntawm cov khoom siv polyvinyl chloride yog nplaim hluav taws, yog li nws yog dav siv nyob rau hauv kev tiv thaiv hluav taws thiab yog ib qho ntawm feem ntau siv insulating cov ntaub ntawv rau nplaim taws retardant thiab hluav taws-resistant xov hlau thiab cables.
PE: Polyethylene yog cov thermoplastic resin ua los ntawm polymerization ntawm ethylene.Nws yog tsis muaj tshuaj lom thiab tsis muaj mob, muaj qhov kub thiab txias tsis kam, thiab tuaj yeem tiv taus kev yaig ntawm feem ntau cov kua qaub thiab alkalis, thiab muaj cov hluav taws xob rwb thaiv tsev zoo heev.Nyob rau tib lub sijhawm, vim tias polyethylene muaj cov yam ntxwv ntawm cov tsis muaj polarity, nws muaj cov yam ntxwv ntawm kev poob qis thiab kev ua haujlwm siab, yog li nws feem ntau yog siv los ua cov khoom siv rwb thaiv tsev rau cov xaim hluav taws xob thiab cov cables.
XLPE: Hla-txuas polyethylene yog ib daim ntawv siab heev ntawm cov khoom siv polyethylene tom qab kev hloov pauv.Tom qab kev txhim kho, nws cov khoom siv lub cev thiab tshuaj lom neeg tau zoo dua qub piv nrog cov khoom siv PE, thiab tib lub sijhawm, nws cov qib kub ua haujlwm tau zoo dua qub.Yog li ntawd, cov xov hlau thiab cables ua los ntawm kev sib txuas ntawm cov khoom siv polyethylene rwb thaiv tsev muaj qhov zoo uas cov khoom siv rwb thaiv tsev polyethylene tsis tuaj yeem sib xws: lub teeb yuag, zoo tiv thaiv tshav kub, tiv thaiv corrosion, rwb thaiv tsev loj, thiab lwm yam.
Piv nrog cov thermoplastic polyethylene, XLPE rwb thaiv tsev muaj qhov zoo hauv qab no:
1 Txhim kho cua sov deformation tsis kam, txhim kho cov khoom siv hluav taws xob ntawm qhov kub thiab txias, txhim kho ib puag ncig kev ntxhov siab tawg tsis kam thiab kub kub aging kuj.
2 Txhim kho cov tshuaj lom neeg ruaj khov thiab hnyav ua haujlwm, txo cov dej txias, ua kom cov khoom siv hluav taws xob zoo, lub sijhawm ua haujlwm kub tuaj yeem ncav cuag 125 ℃ thiab 150 ℃, hla-txuas polyethylene insulated xov hlau thiab cables, kuj txhim kho lub peev xwm luv luv, nws Lub sij hawm luv luv bearing kub tuaj yeem ncav cuag 250 ℃, tib lub thickness ntawm cov xov hlau thiab cables, cross-linked polyethylene tam sim no nqa peev xwm ntau dua.
3 XLPE insulated xov hlau thiab cables muaj cov khoom siv zoo heev, tsis muaj dej thiab hluav taws xob tiv thaiv, yog li lawv tau siv dav.Xws li: sab hauv kev sib txuas ntawm cov khoom siv hluav taws xob, lub cev muaj zog, cov teeb pom kev zoo, cov teeb liab hluav taws xob tsis tshua muaj hluav taws xob tswj hluav taws xob, cov kab hluav taws xob, cov xov hlau subway thiab cables, mining ib puag ncig tiv thaiv cables, marine cables, nuclear fais fab tso cables, TV high-voltage xov hlau , X-RAY firing high-voltage xov hlau, thiab fais fab kis xov hlau thiab cables thiab lwm yam lag luam.
Qhov sib txawv ntawm cov ntaub ntawv rwb thaiv tsev cable PVC, PE, thiab XLPE
PVC: tsis tshua muaj kev khiav hauj lwm kub, luv luv thermal aging lub neej, me me kis tau tus mob muaj peev xwm, tsis muaj overload muaj peev xwm, thiab zoo heev pa luam yeeb thiab acid gas txaus ntshai thaum hluav taws.Cov khoom siv dav dav hauv kev lag luam hlau thiab cable, zoo lub cev thiab cov khoom siv kho tshuab, kev ua haujlwm zoo, tus nqi qis thiab muag tus nqi.Tab sis nws muaj halogens, thiab kev siv sheath yog qhov loj tshaj plaws.
PE: Cov khoom siv hluav taws xob zoo heev, nrog txhua qhov zoo ntawm PVC tau hais los saum no.Feem ntau siv nyob rau hauv cov hlau los yog cable rwb thaiv tsev, cov ntaub ntawv kab rwb thaiv tsev, tsis tshua muaj dielectric tsis tu ncua, haum rau cov ntaub ntawv kab, kab kev sib txuas lus, thiab ntau yam computer peripheral hlau core rwb thaiv tsev.
XLPE: Yuav luag zoo li PE hauv cov khoom siv hluav taws xob, thaum lub sijhawm ua haujlwm ntev yog siab dua PE, cov khoom siv kho tshuab zoo dua li PE, thiab kev laus ua haujlwm zoo dua.Ib hom tshiab ntawm ib puag ncig tus phooj ywg cov khoom uas muaj qhov kub thiab txias tsis kam thiab ib puag ncig tiv thaiv, thermosetting yas.Feem ntau siv nyob rau hauv hluav taws xob xaim thiab qhov chaw uas muaj kev tiv thaiv ib puag ncig siab.
Qhov sib txawv ntawm XLPO thiab XLPE
XLPO (cross-linked polyolefin): EVA, tsis muaj pa luam yeeb thiab halogen-dawb, hluav taws xob sib txuas lossis vulcanized roj hmab cross-linked olefin polymer.Lub ntsiab lus dav dav rau chav kawm ntawm cov thermoplastic resins tau los ntawm polymerizing lossis copolymerizing α-olefins xws li ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1-pentene, thiab qee yam cycloolefins .
XLPE (cross-linked polyethylene): XLPE, cross-linked polyethylene, silane cross-linking or chemical cross-linking, yog cov thermoplastic resin ua los ntawm polymerization ntawm ethylene.Hauv kev lag luam, nws kuj suav nrog copolymer ntawm ethylene thiab ib qho me me ntawm α-olefins.
Post lub sij hawm: Jun-26-2024
