Ukukhetha izinto ezifanelekileyo kubalulekile ekuqinisekiseni ukuzinza kwexesha elide kunye nokusebenza kweentambo ze-optical. Izinto ezahlukeneyo ziziphatha ngendlela eyahlukileyo phantsi kweemeko ezigqithisileyo zokusingqongileyo-izinto eziqhelekileyo zinokuba brittle kwaye ziqhekeke kumaqondo aphantsi, ngelixa kubushushu obuphezulu zinokuthi zithambe okanye zigxumeke.
Apha ngezantsi kukho izinto ezininzi ezisetyenziswa ngokuqhelekileyo kuyilo lwentambo yokukhanya, nganye ineengenelo zayo kunye nezicelo ezifanelekileyo.
1. PBT (Polybutylene Terephthalate)
I-PBT yeyona nto isetyenziswa kakhulu kwi-optical cable loose tubes.
Ngokuguqulwa - okufana nokongeza amacandelo amakhonkco aguquguqukayo - ukunyanzeliswa kwayo okuphantsi kweqondo lokushisa kunokuphuculwa kakhulu, ukuhlangabezana lula nemfuno -40 °C.
Ikwagcina ukuqina okugqwesileyo kunye nokuzinza kwe-dimensional phantsi kobushushu obuphezulu.
Izinto eziluncedo: ukusebenza kakuhle, ukusebenza kakuhle kweendleko, kunye nokusetyenziswa ngokubanzi.
2. PP (Ipolypropylene)
I-PP ibonelela ngobungangalala bobushushu obuphantsi, ikhusela ukuqhekeka nakwindawo ezibanda kakhulu.
Ikwabonelela ngokuxhathisa okungcono kwe-hydrolysis kune-PBT. Nangona kunjalo, imodyuli yayo iphantsi kancinci, kwaye ukuqina kubuthathaka.
Ukukhetha phakathi kwe-PBT kunye ne-PP kuxhomekeke kuyilo lwesakhiwo sentambo kunye neemfuno zokusebenza.
3. LSZH (Umsi ophantsi onguziro weHalogen Compound)
I-LSZH yenye yezona zinto zidumileyo ze-sheath ezisetyenziswayo namhlanje.
Ngokuqulunqwa kwe-polymer ephezulu kunye ne-synergistic additives, iikhompawundi eziphezulu ze-LSZH zinokuhlangabezana ne--40 °C yovavanyo oluphantsi lobushushu kunye nokuqinisekisa ukuzinza kwexesha elide kwi-85 °C.
Zibonisa ukubuyiswa komlilo obalaseleyo (ukuvelisa umsi ophantsi kwaye akukho gesi ye-halogen ngexesha lokutsha), kunye nokuchasana okunamandla kuxinzelelo lokuqhaqha kunye nokubola kweekhemikhali.
Lukhetho olukhethwayo kwiintambo ezingatshiyo kunye nezilungele ukusingqongileyo.
4. TPU (Thermoplastic Polyurethane)
Eyaziwa ngokuba "yinkosi yokubanda kunye nokumelana nokunxiba," i-TPU ye-sheathing material ihlala ibhetyebhetye nakumaqondo obushushu aphantsi kakhulu ngelixa inikezela nge-abrasion ephezulu, ioyile, kunye nokungakrazuki.
Ilungele iintambo zekhonkco lokutsala, iintambo zemigodi, kunye neentambo zemoto ezifuna ukuhamba rhoqo okanye kufuneka zimelane neemeko ezibandayo ezibandayo.
Nangona kunjalo, ingqwalasela kufuneka ihlawulwe kubushushu obuphezulu kunye nokumelana ne-hydrolysis, kunye namabakala aphezulu acetyiswayo.
5. IPVC (Polyvinyl Chloride)
I-PVC lukhetho lwezoqoqosho kwiishethi zentambo ye-optical.
I-PVC esemgangathweni ithande ukuba lukhuni kwaye ibe brittle ngaphantsi kwe -10 °C, iyenza ingafaneleki kwiimeko zobushushu obuphantsi kakhulu.
I-PVC ekwazi ukumelana nokubanda okanye i-low-temperature formulations ye-PVC iphucula ukuguquguquka ngokongeza inani elikhulu le-plasticizers, kodwa oku kunokunciphisa amandla omatshini kunye nokumelana nokuguga.
I-PVC inokuqwalaselwa xa iindleko ezifanelekileyo ziphambili kwaye iimfuno zokuthembeka kwexesha elide aziphezulu.
Isishwankathelo
Nganye kwezi zixhobo zentambo ye-optical inikezela ngeenzuzo ezihlukeneyo ngokuxhomekeke kwisicelo.
Xa uyila okanye ukuvelisa iintambo, kubalulekile ukuqwalasela iimeko zokusingqongileyo, ukusebenza koomatshini, kunye neemfuno zobomi benkonzo ukukhetha eyona imathiriyeli ifanelekileyo.
Ixesha lokuposa: Oct-31-2025