Ekwakhiweni kwezintambo ezivimbela umlilo ezingenayo intuthu encane ye-halogen, ukukhethwa kwezinto zekhebula ze-LSZH zendwangu yangaphakathi kanye nendwangu yangaphakathi kuthinta ngqo ukusebenza kwentambo evimbela umlilo, ukuphepha kwemvelo, kanye nokuphila kwenkonzo. Indwangu yangaphakathi itholakala phakathi kwe-insulation kanye nendwangu yempi, okunikeza ukucasha kanye nokuhlukanisa; ingubo yangaphakathi ibekwe ngaphandle kwengubo yempi, inikeza isivikelo esiphelele. Zombili kumele zihlangabezane nezidingo zokuba ezingenayo i-halogen, ezingenantuthu encane, ezingenantuthu encane, futhi ezinobungane nemvelo.
I. Ukukhethwa Kwezinto Zokwenza I-Inner Lining Ngezintambo Ezingena-Halogen Ezingenantuthu Ephansi Ezingalawuli Ilangabi
Ulwelwesi lwangaphakathi kumele lungabi yi-hygroscopic, lube nezici zokuvimbela umlilo ezingenayo i-halogen, futhi luhambisane nohlelo lokuvikela umlilo. Izinto zolwelwesi lwangaphakathi ze-LSZH ezisetshenziswa kakhulu zifaka i-polyolefin engenalo i-halogen evimbela umlilo kanye ne-polyethylene (HF-PE) engenalo i-halogen evimbela umlilo, enikeza izakhiwo ezinhle kakhulu zomshini kanye nokuqina kokuvimbela umlilo. Izinqubo zokukhipha noma zokusonga zingasetshenziswa ukuhlangabezana nezidingo zesakhiwo zezincazelo ezahlukene zekhebula.
II. Ukukhethwa Kwezinto Zomgoqo Wangaphakathi Ongenawo Intuthu Ephansi
Izidingo eziyinhloko ze-sheath yangaphakathi yintuthu ephansi, ukwakheka okungena-halogen, kanye nokumelana nomlilo okuphezulu. Izinto eziyinhloko zifaka phakathi i-polyolefin engenamusi ophansi evimbela umlilo kanye nerabha ye-EVM (irabha ye-ethylene-vinyl acetate). I-polyolefin engenamusi ophansi evimbela umlilo ayikhiphi amagesi anobuthi e-halogen acid lapho isha, okunikeza ukucutshungulwa okuhle kanye nokusebenza kahle kwezindleko eziphezulu. Irabha ye-EVM ibonisa ukumelana nokushisa okuphezulu, ukumelana nowoyela, kanye nezakhiwo ezivimbela umlilo ezincane, okwenza isetshenziswe kabanzi ezisetshenziswayo eziphezulu njengezintambo zasolwandle, izintambo zezimayini, kanye nezintambo zesitimela.
III. Ukusetshenziswa kwerabha ye-EVM kuma-Cable Sheaths angenawo umusi ophansi
Irabha ye-EVM okwamanje iyinto ekhethwayo yama-sheath ekhebula angenamusi ophansi angenawo i-halogen. Idlulile ezitifiketini ezigunyaziwe ezivimbela umlilo ekusetshenzisweni kwekhebula lasolwandle kanye nelezimayini. Ama-compound e-EVM avimbela umlilo afinyelela inkomba ye-oxygen engu-38 kuya ku-42, akhiqiza ukukhishwa kwentuthu okuphansi, futhi awanobuthi lapho esha. Njengoba inobubanzi bokushisa obuqhubekayo obungu-90°C kuya ku-105°C, kanye nokumelana okuhle kakhulu namafutha amaminerali kanye nokuguga, irabha ye-EVM iyinto efanelekile yezintambo ezikhethekile ezivimbela umlilo.
IV. Ukuhlaziywa Kwezindleko Nezinzuzo Zezinto Zekhebula Ezingenawo Umusi Ophansi
Izinto zekhebula ze-LSZH ngokuvamile zibiza kakhulu kunezejwayelekileI-PVCizintambo, ikakhulukazi ngenxa yezinhlelo ezigcwele kakhulu zokuvikela umlilo ezinobungani nemvelo njenge-magnesium hydroxide kanye ne-aluminium hydroxide. Kodwa-ke, ezisetshenzisweni ezibalulekile zokuphepha njengezokuthutha zomphakathi, izikhungo zedatha, imikhumbi yasolwandle, kanye nezakhiwo eziphakeme, inani lokuphepha lezinto zekhebula ezingenayo intuthu ephansi ezivimbela umlilo alinakushintshwa. Njengamanje, ama-polyolefin enjoloba e-EVM kanye nama-polyolefin angenawo ama-halogen asebenza kahle kakhulu afinyelele izinhlelo zokusebenza ezinkulu ezingabizi kakhulu futhi abe yizinketho ezivamile embonini.
Isiphetho
Ukukhetha ulwelwesi lwangaphakathi olufanele kanye nezinto zomgobo wangaphakathi wezintambo ezingenayo i-halogen ezivimbela umlilo kancane kudinga ukucatshangelwa okubanzi kokuvimbela umlilo, izidingo zemvelo, izimo zokusetshenziswa, kanye nokusebenza kahle kwezindleko.IZWE ELILODWAIgxile ekuhlinzekeni uhla oluphelele lwezinto zekhebula ze-LSZH, kufaka phakathi irabha ye-EVM, i-polyolefin engenamusi ophansi evimbela ilangabi, kanye nezinto zekhebula ezingenawo umlilo ezingenawo i-halogen, enikeza izixazululo zezinto zekhebula ezima kanye nokusekelwa kobuchwepheshe.
Ukuze uthole iseluleko sokukhetha izinto, ukuhlolwa kwesampula, noma izingcaphuno zomkhiqizo, sicela ukhululeke ukuxhumana nathi ukuze uthole usizo lochwepheshe.
Isikhathi sokuthunyelwe: Mashi-31-2026