Hauv kev tsim cov xov hlau thiab cov cable, cov khoom siv conductor feem ntau yog nyiaj, tooj liab, thiab txhuas. Nyiaj muaj cov hluav taws xob conductivity siab tshaj plaws, tab sis vim nws tus nqi siab, nws feem ntau siv rau hauv cov cables teeb liab zaus siab, cov cables ntsuas precision, thiab cov cables suab siab. Tooj liab muaj conductivity thib ob tsuas yog nyiaj thiab muaj cov txheej txheem ua tau zoo heev, cov khoom siv kho tshuab, thiab kev tiv thaiv corrosion, ua rau nws siv dav hauv cov cables fais fab, cov xov hlau hauv tsev, cov cables tswj, thiab cov cables sib txuas lus. Aluminium muaj conductivity kwv yees li 60% ntawm tooj liab (kwv yees li 61% IACS) thaum muaj tsuas yog ib feem peb ntawm cov tooj liab qhov ceev thiab tus nqi qis dua, ua rau nws feem ntau siv rau hauv cov cables rwb thaiv tsev, cov kab kis, thiab cov cables fais fab loj.
Kev ua tau zoo ntawm tus neeg coj hluav taws xob tsis yog nyob ntawm cov hlau nws tus kheej xwb tab sis kuj nyob ntawm qhov sib xws ntawm cov khoom siv rwb thaiv tsev, cov khoom siv sheathing, thiab cov khoom siv cuam tshuam. Piv txwv li, yog tias tooj liab tsis muaj oxygen-purity siab, qhov tsis txaus ntawm cov khoom siv sib xws yuav ua rau muaj teeb meem kev ruaj khov ntawm qhov interface thaum lub sijhawm ua haujlwm ntev, uas yuav cuam tshuam rau kev ua haujlwm hluav taws xob thiab kev ntseeg siab. Polyvinyl Chloride (PVC),Polyethylene sib txuas (XLPE), thiab Polypropylene (PP) cov khoom sib xyaw ua ke muaj cov yam ntxwv sib txawv ntawm kev tiv taus cua sov, kev ua haujlwm hluav taws xob, thiab kev ruaj khov ntawm tshuaj lom neeg. Ntawm lawv, XLPE thiab PP feem ntau zoo dua rau cov ntawv thov uas xav tau qhov kub siab dua lossis kev ua haujlwm hluav taws xob zoo dua. Yog li ntawd, kev sib raug zoo ntawm tus neeg coj thiab kev rwb thaiv tsev yog qhov tseem ceeb hauv kev tsim cable.
Thaum lub sijhawm ua cov hlau xaim, cov hlau tooj liab tsim kev ntxhov siab sab hauv, uas tuaj yeem cuam tshuam rau kev ua hluav taws xob. Los ntawm kev annealing, kev ua hluav taws xob tuaj yeem txhim kho thaum txhim kho kev ywj pheej. Txawm li cas los xij, cov hlau tooj liab mos mos annealed muaj lub zog kho tshuab qis dua. Yog li ntawd, kev nruj ntawm cov hlau, qhov kub thiab txias extrusion, thiab cov xwm txheej txias yuav tsum tau tswj hwm kom zoo thaum lub sijhawm rwb thaiv tsev extrusion kom ntseeg tau tias cov hlau ruaj khov thiab cov txheej rwb thaiv tsev sib xws. Qhov no qhia txog qhov tseem ceeb ntawm kev sib koom tes ntawm cov txheej txheem ua cov hlau thiab cov txheej txheem rwb thaiv tsev extrusion.
Hauv kev xa cov teeb liab zaus siab, qhov cuam tshuam ntawm daim tawv nqaij ua rau cov hluav taws xob tam sim no sib sau ua ke rau ntawm qhov chaw ntawm tus neeg xyuas hluav taws xob, ua rau cov yam ntxwv ntawm qhov chaw ua haujlwm tseem ceeb heev. Hauv qee qhov kev siv nyiaj-rhiab, cov neeg xyuas hluav taws xob Copper-Clad Aluminium (CCA) siv los sib npaug tus nqi thiab qhov hnyav, thaum Silver-Coated Copper (SCC) lossis cov neeg xyuas hluav taws xob tooj liab plated feem ntau siv rau hauv kev ua haujlwm siab thiab kev ntseeg siab. Lub caij no, cov ntaub ntawv rwb thaiv tsev nrog cov dielectric tsis tu ncua thiab cov dielectric poob qis - xws li Foam Polyethylene (Foam PE), Foam Polypropylene (Foam PP), thiab cov khoom siv XLPE siab-purity - tuaj yeem pab txo qhov teeb liab attenuation thiab txhim kho kev ua haujlwm xa cov zaus siab.
Cov ntawv thov sib txawv xav tau cov khoom siv sib txawv. Cov xov hlau xa hluav taws xob feem ntau muab qhov tseem ceeb rau cov xov hlau tooj liab kom ntseeg tau tias muaj kev ntseeg siab thiab kev ruaj khov ntawm cov teeb liab. Cov kab xa xov tooj cua siv cov xov hlau txhuas dav dav, feem ntau ua ke nrog PVC tiv taus huab cua lossis dub Polyethylene (PE) sheathing rau kev ua kom ruaj khov ntawm ib puag ncig. Cov xov hlau hauv dej hiav txwv thiab ntug dej hiav txwv feem ntau muab qhov tseem ceeb rau Low Smoke Zero Halogen (LSZH) sheathing compounds kom ua tau raws li qhov yuav tsum tau ua kom muaj kev nyab xeeb hluav taws tsawg, tsis muaj halogen, thiab tsis muaj tshuaj lom. Hauv cov tsheb fais fab tshiab (NEV) cov xov hlau hluav taws xob siab, cov xov hlau txhuas xav tau cov tshuaj rwb thaiv tsev XLPE sib xws, cov tshuaj tiv thaiv cua sov, thiab cov kev daws teeb meem tshwj xeeb kom ntseeg tau tias muaj kev ntseeg siab rau kev sib txuas mus ntev.
Hauv kev xaus, kev xaiv tus neeg xyuas pib tsis yog tsuas yog muaj kev coj ua hluav taws xob, lub zog kho tshuab, qhov hnyav, thiab tus nqi xwb, tab sis kuj tseem muaj kev sib koom ua ke ntawm cov khoom siv rwb thaiv tsev, cov khoom siv sheathing, thiab cov ntaub ntawv cable cuam tshuam. Cov ntaub ntawv xws li XLPE rwb thaiv tsev, PVC sheathing compounds,Cov tshuaj LSZH, Ua Npuas Ncauj PE, thiab Thermoplastic Elastomers (TPE) cuam tshuam ncaj qha rau kev ua haujlwm hluav taws xob, kev tiv taus cua sov, thiab lub neej ua haujlwm ntawm cov neeg coj. Kev sib phim kom zoo ntawm cov neeg coj thiab cov ntaub ntawv cable yog qhov tseem ceeb rau kev ua tiav ob qho tib si kev ntseeg siab ntawm cable thiab kev siv nyiaj tsim nyog.
Lub sijhawm tshaj tawm: Tsib Hlis-29-2026