Ordinary PVC Cables tuaj yeem dhau los ua "Zoo, nkig, thiab tawg" hauv lub cav ntim
Yog tias koj puas tau qhib lub hood ntawm lub tsheb qub thiab ua tib zoo saib ntawm cov hlua hluav taws xob uas raug cuam tshuam, koj yuav tau pom qee yam hais txog:cable rwb thaiv tsev xav tias nyuaj thiab nkig, thiab nyob rau hauv qee qhov chaw nws tau tawg lawm, nthuav tawm cov tooj liab conductors sab hauv.
Qhov no tsis yog ib qho tshwm sim cais. Nws yog ib qho teeb meem kev laus uas cuam tshuam nrogPVC (polyvinyl chloride) cables ua haujlwm nyob rau hauv siab -kub cav compartments.
Qhov teeb meem yog nyob rau hauv cov khoom yam ntxwv ntawm PVC. Ua kom PVC mos thiab hloov tau, manufacturers ntxivplasticizers- chemical additives uas ua rau lwm yam tawv PVC yooj yim rau khoov. Txawm li cas los xij, lub sijhawm ntev raug rau qhov kub siab hauv lub tshuab ua haujlwm (80℃rau 150 degree, nrog rau qhov kub thiab txias nyob ze ntawm qhov tso pa tawm qee zaum dhau200 degree) tuaj yeem ua rau cov plasticizers nomaj mam evaporate los yog tsiv tawm ntawm cov khoom.
Thaum cov plasticizers depleted, PVC maj mamrov qab mus rau nws inherently nruj thiab brittle lub xeev.
Yuav ua li cas ntxiv?
Lub hardened PVC rwb thaiv tsev poob nws yooj thiab pibtsim cov kab nrib pleb nyob rau hauv tas li tsheb vibration. Raws li cov kab nrib pleb nthuav, ntu ntawm cov rwb thaiv tsev tuaj yeemflake los yog tawg, exposing tooj liab conductors rau oxidation thiab corrosion.
Qhov tseeb tiag, cov neeg ua yeeb yam raug xa tawm tuaj yeem sib cuag nrog ib leeg thiab ua rau muaj kev sib kisluv luv, lossis tiv tauj lub tsheb lub cev hlau thiab ua rauhluav taws xob to los yog av txhaum. Cov txiaj ntsig tuaj yeem muaj los ntawm cov teeb liab tsis sib haum xeeb mus rau, hauv qhov xwm txheej hnyav, ib qhohluav taws xob hluav taws xob.
Qee cov tswv tsheb tau tshaj tawm tias thaum hloov lub tshuab hluav taws xob lossis ua lwm yam kev tu, cov PVC tiv thaiv hauv qab lub hood tau dhau los ua nkig heev.crumbled zoo li ncuav qab zib crumbs thaum kov.
Qhov no tsis yog tsuas yog ib qho kev ua tsis tiav.
Nyob rau hauv qhov siab - qhov kub thiab txias ntawm lub cav compartment, PVC cable aging tsis yog ib lo lus nug ntawm "seb" nws yuav tshwm sim, tab sis yuav siv sij hawm ntev npaum li cas.
PUR's Chemical Resistance: Tiv Thaiv Cov Roj Roj, Coolant, thiab Roj
PUR (polyurethane)muaj qhov sib txawv ntawm cov khoom siv los ntawm PVC, uas ua rau muaj qhov sib txawv ntev heev - lub sijhawm ua haujlwm.
PVC muaj qhov txwv tsis pub muaj roj thiab qee yam tshuaj. PUR rwb thaiv tsev, los ntawm qhov sib txawv, muaj zog tiv thaiv rau ntau yam khoom uas feem ntau ntsib hauv kev lag luam thiab tsheb ib puag ncig, suav nrogcav roj, coolant, hydraulic roj, roj av, dilute acids, thiab alkaline daws.
Nws cov tshuaj tiv thaiv tuaj yeem ua tiav raws li hauv qab no:
Resistance rau lub cav thiab lubricating roj:Ua raws liTS EN 50363-10-2cov kev xav tau, nrog kev ua haujlwm zoo rau ntev - lub sij hawm raug cov ntxhia - roj - raws li lubricants yam tsis muaj qhov o lossis decomposition.
Coolant kuj:Tswj kev ua haujlwm ruaj khov thaum raug cov dej txias lossis cov dej ua kom txias.
Roj av thiab roj tsis kam:Resistant degradation thaum raug rau automotive fuels.
Acid thiab alkali tsis kam:Muab cov tshuaj tiv thaiv rau ntau yam acidic thiab alkaline tshuaj.
Hydrolysis thiab microbial tsis kam:Ua tau zoo nyob rau hauv ib puag ncig ntub thiab tiv taus degradation los ntawm hydrolysis thiab microbial kev loj hlob.
PVC yuav maj mam o, muag muag, thiab nws thiaj li tawg thaum raug rau cov roj cav.Raws li kev sib piv,PUR tuaj yeem tuav nws lub cev lub cev rau xyoo.
Qhov no yog ib qho laj thawj PUR cables tau siv dav hauv kev xav tau ib puag ncig xws li kev tsim khoom siv tshuab thiab kev tsim tsheb, qhov twg raug rau cov roj thiab lwm yam kab mob.
PUR kuj yog ibhalogen{0}} cov khoom siv dawb, txhais tau tias nws tsis muaj halogen cov ntsiab lus xws li chlorine, fluorine, lossis bromine. Nyob rau hauv cov xwm txheej hnyav xws li hluav taws kub, PUR tsis tsim tib homhydrogen halide gasestxuam nrog cov combustion ntawm PVC, uas tuaj yeem tsimhydrogen chloride thiab lwm yam pa phem.
Flexing Test Cov ntaub ntawv: Ntau lab ntawm dabtsi yog khoov voj voog nyob rau hauv Drag-Chain Applications
Lub cav-chaw thiab qhov rooj- cov hlua khi hlua khi ntsej muag ntau dua li qhov kub thiab txias thiab raug tshuaj lom neeg. Lawv kuj yuav tsum tiv tausrov khoov thiab mechanical kev sib txhuam.
Txhua lub sij hawm lub tsheb qhov rooj qhib thiab kaw, cov hlua khi hauv lub qhov rooj flexes. Txhua qhov kev vibration tau ntsib thaum tsav tsheb kuj ua rau muaj kev ntxhov siab ntawm kev xaim hauv lub cav.
Nyob rau tib lub sijhawm, qhov no tuaj yeem ntxiv mustsheej lab ntawm rov khoov mus.
Yog li cas PVC ua tau raws li cov xwm txheej zoo li no?
Hauv kev rub-chain kuaj,PVC cables feem ntau tuaj yeem tiv taus ib puag ncig 200,000 txog 500,000 khoov voj voog ntawm chav tsev kub. Thiab yog nyob rau hauvchav- qhov kub thiab txias. Ntawm qhov kub siab uas pom nyob rau hauv lub cav compartment, kev pab cuam lub neej yuav txo tau ntxiv.
Yuav ua li cas txog PUR?
Cov ntaub ntawv xeem kev lag luam muab qee qhov piv txwv zoo:
L-com Cat5e PUR Muaj Ethernet Cable:Hla ib1 lab-cycle flex testntawm lub vojvoog dabtsi yog khoov ntawm 10 × txoj kab uas hla thiab a10 lab-cycle flex testntawm lub vojvoog dabtsi yog khoov ntawm 20 × txoj kab uas hla.
Phoenix Hu rau PUR Sensor Cable:Dynamic dabtsi yog khoov kuaj tuaj yeem tiv tausmus txog 10 lab khoov cycles.
igus chainflex® PUR Cov ntaub ntawv Cables:Tsim thiab sim raulab ntawm dabtsi yog khoov voj vooghauv luag- cov ntawv thov saws thaum tuav cov teeb liab kev ncaj ncees.
HELUKABEL MULTIFLEX 512-PUR Drag-Chain Cable:Kuaj rau kwv yees li10 lab alternating dabtsi yog khoov voj voog.
10 lab dabtsi yog khoov voj voog tiag tiag txhais li cas?
Piv txwv tias lub tsheb qhov rooj qhib thiab kaw 10 zaug hauv ib hnub. Qhov ntawd yuav sib npaug li 3,650 lub voj voog ib xyoos.
Ntawm 10 lab cycles, uas yuav theoretically sib haum mus rau kwv yees li2,740 y osntawm qhov rooj- qhib lub voj voog.
Tau kawg, tiag tiag -lub ntiaj teb kev pabcuam lub neej nyob ntawm ntau qhov sib txawv, yog li qhov kev suav no yuav tsum tsis txhob raug txhais raws li qhov khoom siv tiag tiag. Txawm li cas los xij, nws qhia txog qhov tshwj xeeb qaug zog tiv thaiv uas PUR tuaj yeem muab kev rov ua dua.
PUR ua tiav qhov kev ua tau zoo vim tias nws cov qauv molecular muabzoo heev elasticity thiab tsim kua muag.
Thaum rov khoov dua, lub tsho PURfaib cov neeg kho tshuab kev nyuaj siab ntau sib npaug, zoo li lub caij nplooj ntoos hlav, es tsis txhob xav txog kev ntxhov siab ntawm ib qho taw tes thiab cia cov kab nrib pleb los txhim kho raws li PVC tuaj yeem.
Ua ke nrogFinely stranded, hloov tau yooj yim tooj liab conductors, PUR cables tuaj yeem ua tiav yam tsawg kawg nkaus khoov radii raws li qis6 × txoj kab uas hla, nyob ntawm qhov kev tsim kho cable tshwj xeeb.
Siab / Tsawg Kub Cycling: -40℃rau +105 degree
Automotive wiring harnesses yuav tsum tiv taus qhov kub thiab txias ntau dua li cov neeg feem coob paub.
Lub caij ntuj no
Hauv cov cheeb tsam xws li North America, Northern Europe, thiab Russia, sab nraum zoov kub tuaj yeem poob rau-40℃lossis qis dua.
Lub caij ntuj sov
Hauv thaj chaw suab puam lossis thaj chaw nres tsheb, qhov kub hauv lub tsheb tuaj yeem tshaj60 degree.
Cav Compartment
Tom qab tsav tsheb ntev, qhov kub thiab txias hauv lub cav ntim tau yooj yim dua100 degree.
Ib lub cable uas yuav tsum ua haujlwmxyoo- puag ncig raws li cov xwm txheej noqhov chaw xav tau heev ntawm cov khoom siv rwb thaiv tsev.
PVC kub txwv
Ib qho kev ua haujlwm ntawm PVC yog kwv yees li-20℃rau +70 degree.
Hauv qab no-20 degree, PVC tuaj yeem uatawv thiab nkig, ua rau muaj kev pheej hmoo ntawm kev tawg lossis tawg thaum khoov.
Thaum lub sijhawm ua haujlwm ntev saum toj no70 degree, plasticizer tsiv teb tsaws thiab thermal aging tuaj yeem nrawm nrawm.
PUR Temperature Performance
Automotive -qib PUR cables rooj sib thamISO 6722 Kev Tswj Xyuascov kev xav tau tuaj yeem muab qhov kev ua haujlwm kub ntawm kwv yees li-40℃rau +105 degree.
Qhov no txhais li cas hauv cov ntsiab lus siv tau?
Ntawm -40 degree
Hauv cov xwm txheej txias heev, PUR rwb thaiv tsevkhaws nws yooj yimthiab nws tsis tshua muaj nkig thiab tawg thaum khoov.
Qee qhov tshwj xeeb PUR cable tsim muaj peev xwm tswj tau qhov kev ua tau zoo flexing txawm tias qhov kub thiab txias li tsawg-60 degree.
Ntawm +105 degree
Ntawm qhov kub siab, PUR rwb thaiv tsev yog tsim los rautiv taus softening, deformation, thiab ceev aging.
Raws li kev hais txog ntev - lub sij hawm siab - cov ntaub ntawv ntsuas kub, PUR cables tuaj yeem ua haujlwm ruaj khov thaum lub sijhawm3,000- teev kev ntsuas kub siab.
Qhov Kev Sib Tw Tseem Ceeb Tshaj: Kub Cycling
Qhov kev sib tw tiag tiag yog feem ntau tsis yog qhov kub thiab txias, tab sisrov qab kub caij tsheb kauj vab.
Piv txwv li, ib lub tsheb yuav ntsib ib ntus xws li:
-30℃thaum hmo ntuj → engine pib → engine compartment kub nce mus rau +80℃thaum ua hauj lwm
Qhov no rov nthuav dav ntxiv-thiab- lub voj voog kev sib cog lus ua rau muaj kev ntxhov siab ntau ntawm cov kab hluav taws xob rwb thaiv tsev.
Raws li cov kev caij tsheb kauj vab no, PUR yog tsim los tiv thaivmicrocracking tshwm sim los ntawm kev rov qab thermal expansion thiab contraction, thaum PVC tuaj yeem maj mam ua nyuaj thiab muaj kev cuam tshuam ntau dua.
Qhov no yog vim li cas siab -kawg automotive diagnostic harnesses siv PUR tsho:
Lawv tau tsim los tswj cov khoom siv hluav taws xob thiab hluav taws xob txhim khu kev qha thoob plaws ntau qhov kev nyab xeeb - los ntawm Arctic Circle mus rau Sahara Desert, thiab los ntawm lub cav txias pib mus rau tag nrho - thauj khoom.
Thaum PVC thiab PUR muab piv rau ib sab, qhov sib txawv yog qhov tseeb:
| Kev sib piv | PVC (Polyvinyl Chloride) | PUR (polyurethane) |
|---|---|---|
| Qhov kub thiab txias | -20℃rau +70 degree | -40℃rau +105 degree |
| Roj kuj | txwv; muaj o | Zoo heev(DIN EN 50363-10-2 ua raws) |
| Coolant Resistance | Cov neeg txom nyem | Zoo heev |
| Flexing Lub Neej | 200,000-500,000 cycles | 1 lab-10 lab lub voj voog |
| Hydrolysis Resistance | Nruab nrab | Zoo heev |
| UV Resistance | Nruab nrab | Zoo heev |
| Cov khoom siv combustion | Muaj peev xwm tso tawm hydrogen chloride thiab lwm yam pa phem | Halogen{0}}dawb, qis- cov yam ntxwv ua pa |
| Tej kev siv | Sab hauv tsev, qhuav, ruaj khov | Cav compartments, sab nraum zoov ib puag ncig, dynamic flexing daim ntaub ntawv |
PVC cables yog pheej yig thiab yooj yim rau kev ua, thiab lawv tuaj yeem ua tau zoo nyob hauv tsev, qhov chaw qhuav.
Txawm li cas los, nyob rau hauv lubcav compartment- ib puag ncig xav tau kev sib xyaw ua ke kub, roj paug, kev co, thiab rov ua dua tshiab - PVC rwb thaiv tsev yog qhov kawg ntawm kev laus.
PUR feem ntau suav hais tias yog "cov ntaub thaiv npog" rau cov tsheb thaiv kab hluav taws xob vim tias nws cov tshuaj tiv thaiv tuaj yeem pab tiv thaiv cov roj cav thiab cov dej txias, nws cov qauv elastic tuaj yeem tiv taus ntau lab ntawm cov voj voog flexing, thiab nws qhov kev ua haujlwm kub ntau ua rau kev ua tau zoo ntawm cov huab cua huab cua.
Rau siab -zoo kuaj kab cable,cov khoom siv rau lub tsho sab nrauv tuaj yeem ua rau qhov sib txawv ntawm lub cable uas kav ntev txog ib xyoos thiab ib qho tsim los muab kev pabcuam txhim khu kev qha rau ntau xyoo.