Dab tsi yog Qhov Kev Xaiv rau PVC Cable?
** Muaj kev txhawj xeeb txog kev siv cov PVC cables nyob rau xyoo tas los no. Qhov no feem ntau yog vim PVC tsis yog cov khoom siv hauv ib puag ncig thiab tuaj yeem cuam tshuam tsis zoo rau tib neeg kev noj qab haus huv. Yog li ntawd, ntau tus neeg tam sim no tab tom nrhiav lwm txoj hauv kev rau PVC cable. Hauv tsab xov xwm no, peb yuav tshawb xyuas qee qhov ntawm cov kev xaiv no yog dab tsi thiab lawv piv rau PVC li cas.**
PVC yog cov khoom siv feem ntau hauv kev tsim cov cables rau ntau qhov laj thawj. Nws yog qhov pheej yig, yooj yim rau kev ua haujlwm nrog, thiab muaj cov khoom siv hluav taws xob zoo. Txawm li cas los xij, PVC tseem yog cov khoom siv roj av uas tsis yog biodegradable, uas txhais tau tias nws tuaj yeem cuam tshuam rau ib puag ncig yog tias tsis muab pov tseg kom zoo. Tsis tas li ntawd, PVC muaj cov tshuaj uas tuaj yeem tsim kev puas tsuaj rau tib neeg kev noj qab haus huv, tshwj xeeb tshaj yog thaum cov cables raug kub hnyiab los yog raug kub hnyiab.
Dab tsi yog qee qhov kev xaiv rau PVC cable?
Muaj ntau cov ntaub ntawv uas tuaj yeem siv los ua lwm yam rau PVC cable. Qee yam ntawm cov khoom siv feem ntau suav nrog:
1. XLPE (cross-linked polyethylene)
2. TPE (thermoplastic elastomer)
3. PE (polyethylene)
4. PUR (polyurethane)
5. TPU (thermoplastic polyurethane)
6. EPR (ethylene propylene roj hmab)
Txhua yam ntawm cov ntaub ntawv no muaj nws tus kheej cov khoom thiab cov txiaj ntsig. Cia peb saib ze dua ntawm txhua tus.
XLPE (cross-linked polyethylene)
XLPE yog cov khoom siv thermosetting uas tiv taus cua sov thiab tshuaj lom neeg. Nws yog feem ntau siv rau high-voltage cables, xws li cov siv nyob rau hauv lub hwj chim kis tau tus mob thiab tis systems. Qhov zoo tshaj plaws ntawm XLPE yog nws lub peev xwm tiv taus qhov kub thiab txias yam tsis muaj melting lossis degrading. Qhov no ua rau nws zoo heev rau siv nyob rau hauv ib puag ncig hnyav, xws li roj thiab roj refineries lossis tshuaj nroj tsuag.
Txawm li cas los xij, XLPE tuaj yeem kim dua lwm cov ntaub ntawv thiab tej zaum yuav tsis zoo rau txhua daim ntawv thov. Piv txwv li, nws yuav tsis zoo tagnrho rau cov cables uas yuav tsum tau hloov tau yooj yim, vim nws tuaj yeem ua rau lub sijhawm ntev.
TPE (thermoplastic elastomer)
TPE yog cov khoom siv tau yooj yim, zoo li roj hmab uas feem ntau siv hauv cov cables uas tsis tshua muaj hluav taws xob, xws li cov khoom siv them nqi lossis txuas cov khoom siv rau cov khoos phis tawj. Nws yog qhov tiv taus zoo rau ib puag ncig xws li ya raws thiab UV hluav taws xob, uas ua rau nws zoo tagnrho rau kev siv sab nraum zoov.
Ib qho txiaj ntsig tseem ceeb ntawm TPE yog nws qhov yooj yim. Nws tuaj yeem molded rau hauv ntau hom duab thiab ntau thiab tsawg, ua rau nws muaj ntau yam. Tsis tas li ntawd, TPE yog cov khoom siv hauv ib puag ncig uas tuaj yeem siv tau yooj yim.
Txawm li cas los xij, TPE tej zaum yuav tsis zoo li qee cov ntaub ntawv thiab tej zaum yuav tsis zoo rau cov ntawv thov kev ntxhov siab. Nws kuj tseem pheej yig dua li PVC.
PE (polyethylene)
PE yog cov khoom siv thermoplastic feem ntau paub txog nws lub zog thiab kav ntev. Nws yog feem ntau siv nyob rau hauv qis-voltage cables, xws li cov siv rau kev sib txuas lus los yog hauv tsev electronics. PE kuj yog ib qho khoom siv pheej yig, uas ua rau nws muaj kev xaiv nrov rau cov neeg tsim khoom.
Qhov zoo tshaj plaws ntawm PE yog nws lub zog. Nws muaj kev tiv thaiv zoo rau kev puas tsuaj thiab kev cuam tshuam, uas ua rau nws zoo rau kev siv nyob rau hauv ib puag ncig hnyav. Nws kuj yog cov khoom siv tau yooj yim, uas ua rau nws zoo tagnrho rau siv hauv cov cables uas yuav tsum tau khoov thiab twisted.
Txawm li cas los xij, PE tuaj yeem cuam tshuam los ntawm UV hluav taws xob thiab tuaj yeem ua rau lub sijhawm yog tias raug tshav ntuj. Nws kuj tseem yuav tsis yog kub-resistant li lwm yam ntaub ntawv.
PUR (polyurethane)
PUR yog cov khoom siv ruaj khov uas feem ntau siv rau hauv cov ntaub ntawv hloov tau yooj yim, xws li cov cables siv hauv cov tshuab neeg hlau lossis cov tshuab ua haujlwm. Nws tiv taus cov tshuaj lom neeg, roj, thiab abrasions, uas ua rau nws zoo tagnrho rau siv nyob rau hauv ib puag ncig hnyav.
Ib qho ntawm qhov zoo tshaj plaws ntawm PUR yog nws qhov yooj yim. Nws tuaj yeem khoov, twist, thiab ncab yam tsis muaj kev tawg lossis ua nkig. Tsis tas li ntawd, nws yog cov khoom siv hloov tau yooj yim uas tuaj yeem hloov kho kom tau raws li cov kev thov tshwj xeeb.
Txawm li cas los xij, PUR tuaj yeem kim dua li lwm cov ntaub ntawv thiab tej zaum yuav tsis haum rau txhua daim ntawv thov. Piv txwv li, tej zaum nws yuav tsis zoo rau cov ntawv thov uas yuav tsum tau muaj cov hluav taws xob rwb thaiv tsev siab.
TPU (thermoplastic polyurethane)
TPU yog cov khoom siv ntau yam uas feem ntau siv rau ntau yam kev siv, suav nrog cov cables. Nws muaj kev tiv thaiv zoo rau kev puas tsuaj, tshuaj lom neeg, thiab roj, uas ua rau nws zoo rau kev siv nyob rau hauv ib puag ncig hnyav. Tsis tas li ntawd, TPU yog cov khoom siv tau yooj yim uas tuaj yeem ua rau ntau yam duab thiab ntau thiab tsawg.
Ib qho ntawm qhov zoo tshaj plaws ntawm TPU yog nws cov versatility. Nws tuaj yeem hloov kho kom tau raws li cov kev xav tau tshwj xeeb, xws li tiv taus UV hluav taws xob los yog muaj qib tshwj xeeb ntawm hluav taws xob rwb thaiv tsev. Tsis tas li ntawd, TPU yog cov khoom siv hauv ib puag ncig uas tuaj yeem siv tau yooj yim.
Txawm li cas los xij, TPU tuaj yeem kim dua lwm cov ntaub ntawv thiab tej zaum yuav tsis yooj yim. Nws kuj tseem yuav tsis yog kub-resistant li lwm yam ntaub ntawv.
EPR (ethylene propylene roj hmab)
EPR yog cov khoom siv ruaj khov uas feem ntau siv rau hauv cov kab hluav taws xob siab, xws li cov khoom siv hluav taws xob xa hluav taws xob thiab cov tshuab xa hluav taws xob. Nws yog qhov muaj zog tiv taus cua sov, tshuaj lom neeg, thiab hluav taws xob kev ntxhov siab, uas ua rau nws zoo rau kev siv hauv kev thov.
Ib qho ntawm qhov zoo tshaj plaws ntawm EPR yog nws cov kav ntev. Nws tuaj yeem tiv taus cov hluav taws xob siab ntau yam tsis tau tawg lossis degrading. Tsis tas li ntawd, nws yog cov khoom siv tau yooj yim uas tuaj yeem ua rau ntau yam duab thiab ntau thiab tsawg.
Txawm li cas los xij, EPR tuaj yeem kim dua li lwm cov ntaub ntawv thiab yuav tsis haum rau txhua daim ntawv thov. Piv txwv li, nws yuav tsis zoo tagnrho rau cov ntawv siv hluav taws xob tsawg, vim nws tuaj yeem dhau-engineered rau hom kev siv no.
Yam khoom twg zoo tshaj?
Tsis muaj ib qho loj-haum-tag nrho cov lus teb rau lo lus nug no, vim tias txhua yam khoom muaj nws cov khoom tshwj xeeb thiab cov txiaj ntsig. Cov khoom siv zoo tshaj plaws rau ib daim ntawv thov tshwj xeeb yuav nyob ntawm ntau yam, suav nrog cov kev cai tshwj xeeb ntawm daim ntawv thov, ib puag ncig uas yuav siv cable, thiab cov peev nyiaj ntawm cov chaw tsim khoom.
Feem ntau, XLPE, TPE, thiab PE yog cov kev xaiv zoo rau cov ntawv siv hluav taws xob tsawg, thaum PUR, TPU, thiab EPR yog qhov zoo dua rau cov ntawv siv hluav taws xob siab thiab kev ntxhov siab. Txawm li cas los xij, nws yog ib qho tseem ceeb uas yuav tau sab laj nrog lub chaw tsim khoom siv cable lossis cov kws paub txog cov ntaub ntawv los txiav txim seb cov khoom twg yog qhov zoo tshaj plaws rau koj daim ntawv thov tshwj xeeb.
Xaus
Raws li kev txhawj xeeb txog kev cuam tshuam ib puag ncig thiab kev pheej hmoo ntawm kev noj qab haus huv ntawm PVC cables txuas ntxiv mus, ntau lub tuam txhab tam sim no tab tom nrhiav lwm txoj hauv kev rau PVC cable. Muaj ntau cov ntaub ntawv uas tuaj yeem siv los ua lwm txoj hauv kev, txhua tus nrog nws cov khoom tshwj xeeb thiab cov txiaj ntsig. Los ntawm kev nkag siab txog cov khoom thiab cov kev txwv ntawm txhua yam khoom siv, cov tuam txhab tuaj yeem xaiv cov khoom siv zoo tshaj plaws rau lawv cov ntawv thov tshwj xeeb, thaum tseem txo qis lawv cov hneev taw ib puag ncig thiab tiv thaiv kev noj qab haus huv thiab kev nyab xeeb ntawm lawv cov neeg ua haujlwm thiab cov neeg siv khoom.