Cov laj thawj tseem ceeb ntawm kev siv cov hlau lead ua cov khoom siv sheath rau cables yog raws li hauv qab no:
Softness thiab processability: Lead yog mos thiab muaj ib tug tsawg melting point, ua rau nws yooj yim rau smelt thiab txheej txheem. Qhov no tso cai rau cov hlau lead sheaths kom muaj cov yas zoo thaum lub sij hawm tsim khoom, tso cai rau lawv ua tau raws li cov kev xav tau ntawm cable sheaths ntawm txawv specifications thiab cov duab.
Chemical stability: Lead thiab nws cov alloys muaj tshuaj lom neeg ruaj khov thiab tsis yooj yim corroded los ntawm acids, alkalis, thiab lwm yam tshuaj. Qhov no ua rau cov hlau lead sheaths muaj kev tiv thaiv corrosion zoo thaum siv cov cables, tiv thaiv cov tub ntxhais nyob hauv cov cables los ntawm ib puag ncig sab nraud.
Sealing thiab noo noo tsis kam: Cov hlau lead sheath muaj zoo sealing thiab noo noo tsis kam, uas tuaj yeem tiv thaiv kom tsis txhob ya raws thiab av noo los ntawm kev nkag mus rau sab hauv ntawm lub cable, yog li tiv thaiv cov tub ntxhais hlau los ntawm cov teebmeem ntawm qhov chaw ntub dej.
Mechanical zog: Txawm hais tias lub zog txhua yam ntawm cov hlau lead ntshiab yog qhov tsawg, cov hlau lead alloys muaj zog txhua yam thiab tuaj yeem ua tau raws li qhov xav tau ntawm cov khoom siv hluav taws xob ntawm cable sheaths. Lead sheaths tuaj yeem tiv thaiv kev puas tsuaj rau lub cev sab nraud thiab qhov nro, tiv thaiv cov tub ntxhais xov hlau hauv cov kab hluav taws xob los ntawm sab nraud.
Txawm li cas los xij, nws yuav tsum tau muab sau tseg tias cov hlau lead sheathed cables kuj muaj qee qhov tsis zoo, xws li kev hloov pauv ntawm cov hlau lead tuaj yeem ua rau muaj qhov khoob hauv lub cable thaum nws nthuav dav hauv kev thauj khoom thiab cua sov, cuam tshuam rau kev ua haujlwm rwb thaiv tsev. Nyob rau tib lub sijhawm, txhuas txhuas yog cov tshuaj lom thiab tsis haum rau kev tiv thaiv ib puag ncig thiab tib neeg kev noj qab haus huv. Yog li ntawd, nrog txoj kev loj hlob ntawm cov cuab yeej technology thiab kev paub txog kev tiv thaiv ib puag ncig, cov hlau lead sheathed cables tau maj mam hloov los ntawm lwm cov ntaub ntawv zoo dua qub thiab zoo dua.
Feem ntau, lub ntsiab yog vim li cas rau daim ntawv thov ntawm txhuas sheath ntaub ntawv nyob rau hauv cables yog lawv saj zawg zog, processability, tshuaj stability, sealing thiab noo noo tsis kam, thiab mechanical zog. Txawm li cas los xij, nrog rau kev tiv thaiv ib puag ncig thiab kev tsim cov ntaub ntawv tshiab, kev siv cov hlau lead sheath cables yog maj mam txo.
