Kev xaiv cov ntaub ntawv zoo yog qhov tseem ceeb rau kev ua kom ruaj khov thiab ua tau zoo ntawm cov xov hluav taws xob optical mus sij hawm ntev. Cov ntaub ntawv sib txawv ua txawv nyob rau hauv cov xwm txheej ib puag ncig hnyav - cov ntaub ntawv ib txwm yuav ua rau brittle thiab tawg ntawm qhov kub qis, thaum nyob rau hauv qhov kub siab lawv yuav mos lossis deform.
Hauv qab no yog ntau cov ntaub ntawv siv ntau hauv kev tsim cov xov hlau optical, txhua tus muaj nws cov txiaj ntsig thiab cov ntawv thov tsim nyog.
1. PBT (Polybutylene Terephthalate)
PBT yog cov khoom siv dav tshaj plaws rau cov raj xa hluav taws xob optical cable xoob.
Los ntawm kev hloov kho - xws li ntxiv cov saw hlau yooj ywm - nws qhov kub qis brittleness tuaj yeem txhim kho tau zoo heev, yooj yim ua tau raws li qhov yuav tsum tau ua -40 ° C.
Nws kuj tseem tswj tau qhov ruaj khov zoo heev thiab qhov ntev ruaj khov hauv qab qhov kub siab.
Cov txiaj ntsig: kev ua tau zoo sib npaug, kev siv nyiaj tsim nyog, thiab kev siv tau dav.
2. PP (Polypropylene)
PP muab kev tawv zoo heev thaum kub qis, tiv thaiv kev tawg txawm tias nyob rau hauv qhov chaw txias heev.
Nws kuj muaj kev tiv thaiv hydrolysis zoo dua li PBT. Txawm li cas los xij, nws cov modulus qis dua me ntsis, thiab rigidity tsis muaj zog.
Qhov kev xaiv ntawm PBT thiab PP nyob ntawm seb lub cable tsim qauv thiab kev ua haujlwm xav tau li cas.
3. LSZH (Cov Pa Luam Yeeb Tsawg Tsis Muaj Halogen Compound)
LSZH yog ib qho ntawm cov ntaub ntawv sheath nrov tshaj plaws uas siv niaj hnub no.
Nrog cov qauv polymer siab heev thiab cov khoom siv synergistic, cov tshuaj LSZH zoo tuaj yeem ua tau raws li qhov ntsuas kub qis -40 ° C thiab ua kom ruaj khov mus sij hawm ntev ntawm 85 ° C.
Lawv muaj cov yam ntxwv zoo heev uas tiv taus hluav taws (tsim cov pa luam yeeb tsawg thiab tsis muaj cov pa roj halogen thaum lub sijhawm hlawv), nrog rau kev tiv taus kev tawg ntawm kev ntxhov siab thiab kev xeb ntawm cov tshuaj lom neeg.
Nws yog qhov kev xaiv zoo dua rau cov xov hlau uas tsis kub hnyiab thiab zoo rau ib puag ncig.
4. TPU (Thermoplastic Polyurethane)
Paub tias yog "vaj ntxwv ntawm kev tiv taus txias thiab hnav tsis kam," TPU sheathing cov ntaub ntawv tseem yoog tau txawm tias nyob rau hauv qhov kub qis heev thaum muab kev tiv thaiv zoo dua ntawm kev puas tsuaj, roj, thiab kua muag.
Nws zoo tagnrho rau cov hlua khi hlua, cov hlua khawb av, thiab cov hlua tsheb uas xav tau kev txav mus los ntau zaus lossis yuav tsum tiv taus qhov chaw txias heev.
Txawm li cas los xij, yuav tsum tau them sai sai rau qhov kub thiab txias thiab hydrolysis tsis kam, thiab cov qib zoo raug pom zoo.
5. PVC (Polyvinyl Chloride)
PVC yog ib qho kev xaiv pheej yig rau cov ntaub thaiv kab hluav taws xob optical.
PVC txheem feem ntau tawv thiab ua brittle hauv qab -10 ° C, ua rau nws tsis haum rau cov xwm txheej kub qis heev.
Cov qauv PVC uas tiv taus txias lossis kub qis txhim kho kev ywj pheej los ntawm kev ntxiv cov yas ntau ntau, tab sis qhov no tuaj yeem txo qhov muaj zog thiab kev tiv taus kev laus.
PVC tuaj yeem xav txog thaum qhov kev siv nyiaj tsim nyog yog qhov tseem ceeb thiab qhov yuav tsum tau ua kom ntseeg tau mus sij hawm ntev tsis siab.
Kev Txheeb Xyuas
Txhua yam ntawm cov khoom siv kho qhov muag cable no muaj cov txiaj ntsig sib txawv nyob ntawm daim ntawv thov.
Thaum tsim lossis tsim cov cables, nws yog ib qho tseem ceeb uas yuav tsum xav txog cov xwm txheej ib puag ncig, kev ua haujlwm ntawm lub tshuab, thiab cov kev xav tau ntawm lub neej ua haujlwm kom xaiv cov khoom siv tsim nyog tshaj plaws.
Lub sijhawm tshaj tawm: Lub Kaum Hli-31-2025