(1)I-Cross-Linked Low Smoke Zero Halogen Polyethylene (XLPE) Insulation Material:
I-XLPE insulation material ikhiqizwa ngokuhlanganisa i-polyethylene (PE) ne-ethylene vinyl acetate (EVA) njengesisekelo se-matrix, kanye nezithasiselo ezihlukahlukene ezifana ne-halogen-free flame retardants, izinto zokugcoba, ama-antioxidants, njll., ngokusebenzisa inqubo yokuhlanganisa kanye ne-pelletizing. Ngemva kokucubungula imisebe, i-PE ishintsha isuka esakhiweni semolekyuli ewumugqa ibe yisakhiwo esinezinhlangothi ezintathu, ishintsha isuka kokusetshenziswa kwe-thermoplastic iye kupulasitiki we-thermosetting ongancibiliki.
Izintambo zokufakelwa kwe-XLPE zinezinzuzo ezimbalwa uma ziqhathaniswa ne-PE ejwayelekile ye-thermoplastic:
1. Ukumelana okuthuthukisiwe kokuguga okushisayo, ukuthuthukiswa kwezakhiwo zemishini emazingeni okushisa aphezulu, nokumelana okuthuthukisiwe ekuqhekekeni kokucindezeleka kwemvelo nokuguga okushisayo.
2. Ukuqina kwamakhemikhali okuthuthukisiwe nokumelana ne-solvent, ukunciphisa ukugeleza okubandayo, nokugcinwa kwezakhiwo zikagesi. Amazinga okushisa esikhathi eside okusebenza angafinyelela ku-125°C kuya ku-150°C. Ngemva kokucutshungulwa kokuxhumanisa, izinga lokushisa lesifunda esifushane le-PE linganyuswa libe ngu-250 ° C, okuvumela amandla okuthwala amanje aphezulu kakhulu amakhebula anogqinsi olufanayo.
3. Izintambo ezifakwe i-XLPE-insulated zibuye zibonise izakhiwo ezinhle kakhulu zokusebenzisa imishini, ukungenwa kwamanzi, kanye ne-radiation, ezizenza zifanelekele izinhlelo zokusebenza ezihlukahlukene, njengezintambo zangaphakathi ezintweni zikagesi, amalawuli enjini, izibani zokukhanyisa, izintambo zokulawula amasignali ezimoto ezinama-voltage aphansi, izintambo zesitimela. , izintambo zikaloliwe ohamba ngaphansi komhlaba, izintambo zezimayini ezingayingcolisi imvelo, izintambo zemikhumbi, izintambo ezingu-1E-grade zezimboni eziphehla amandla enuzi, izintambo zephampu ezingaphansi kwamanzi, nezintambo zikagesi.
Izikhombisi-ndlela zamanje ekuthuthukisweni kwezinto zokuvikela ze-XLPE zifaka izinto zokugqumisa ikhebula lamandla e-PE elixhumene ngokuphambana, i-radiation cross-linked PE yasemoyeni ye-PE, nezinto zokushelela ze-polyolefin ezinqanda amalangabi ezixhumene ne-radiation.
(2)I-Cross-Linked Polypropylene (XL-PP) Insulation Material:
I-Polypropylene (PP), njengepulasitiki evamile, inezici ezifana nesisindo esincane, imithombo eningi yezinto ezingavuthiwe, ukuphumelela kwezindleko, ukumelana nokugqwala kwamakhemikhali okuhle kakhulu, ukubunjwa kalula, kanye nokusetshenziswa kabusha. Kodwa-ke, inokulinganiselwa okufana namandla aphansi, ukumelana nokushisa okungekuhle, ukuwohloka okuphawulekayo kokuncipha, ukumelana nokunyakazisa okungekuhle, ukubola kwezinga lokushisa eliphansi, nokungamelani kahle nokushisa nokuguga komoyampilo. Le mikhawulo ikhawulele ukusetshenziswa kwayo ezinhlelweni zekhebula. Abacwaningi bebesebenzela ukuguqula izinto ze-polypropylene ukuze zithuthukise ukusebenza kwazo zonke, futhi i-polypropylene ehlanganisiwe ye-irradiation cross-linked (XL-PP) iye yanqoba ngempumelelo le mikhawulo.
Izintambo ezivalekile ze-XL-PP zingahlangabezana nokuhlolwa kwelangabi le-UL VW-1 kanye namazinga ocingo alinganiselwe nge-UL angu-150°C. Ekufakweni kwekhebula okusebenzayo, i-EVA ivamise ukuhlanganiswa ne-PE, i-PVC, i-PP, nezinye izinto ukuze kulungiswe ukusebenza kwesendlalelo sokufakwa kwekhebula.
Enye yezinto ezimbi ze-PP exhumene ne-irradiation ukuthi ihilela ukusabela kokuncintisana phakathi kokwakhiwa kwamaqembu ekugcineni angagcwalisiwe ngokusabela kokuwohloka kanye nokusabela okuxhumanisa phakathi kwama-molecule avuselelwe nama-molecule amakhulu ama-radicals mahhala. Ucwaningo lubonise ukuthi isilinganiso sokuwohloka kokusabela okuxhumanisayo ekuxhumekeni kwe-PP irradiation cishe singu-0.8 uma usebenzisa i-gamma-ray irradiation. Ukuze kuzuzwe ukusabela okusebenzayo kokuxhumanisa ku-PP, abagqugquzeli abaxhumanisayo badinga ukungezwa ukuze kuxhunywe i-irradiation cross-linking. Ukwengeza, ukujiya okusebenzayo kokuxhumanisa kunqunyelwe amandla okungena emishayo ye-electron ngesikhathi sokukhanya. Ukushiswa kwemisebe kuholela ekukhiqizweni kwegesi nokuphuma amagwebu, okunenzuzo ekuxhumaniseni imikhiqizo emincane kodwa kukhawule ukusetshenziswa kwezintambo ezinodonga oluwugqinsi.
(3) I-Cross-Linked Ethylene-Vinyl Acetate Copolymer (XL-EVA) Insulation Material:
Njengoba isidingo sokuphepha kwekhebula sikhula, ukuthuthukiswa kwamakhebuli axhumene ne-cross-link-free-halogen-free-retardant kukhule ngokushesha. Uma kuqhathaniswa ne-PE, EVA, eyethula ama-vinyl acetate monomers ochungechungeni lwamangqamuzana, inobucwebe obuphansi, okuholela ekuguquguqukeni okuthuthukisiwe, ukumelana nomthelela, ukuhambisana kokugcwalisa, kanye nezakhiwo zokuvala ukushisa. Ngokuvamile, izakhiwo ze-EVA resin zincike kokuqukethwe kwe-vinyl acetate monomers ochungechungeni lwamangqamuzana. Okuqukethwe kwe-acetate ye-vinyl ephakeme kuholela ekwandeni kokusobala, ukuguquguquka, kanye nokuqina. I-EVA resin inokuhambisana okuhle kakhulu kokugcwalisa nokuxhumanisa, okuyenza idume kakhulu ezintanjeni ezixhumene ne-cross-link ezingenawo amalangabi ezingenalo i-halogen.
I-EVA resin enokuqukethwe kwe-acetate ye-vinyl ecishe ibe ngu-12% kuya ku-24% ivamise ukusetshenziswa ekuhlukaniseni izintambo nezintambo. Kuzicelo zangempela zekhebula, i-EVA ivame ukuhlanganiswa ne-PE, i-PVC, i-PP, nezinye izinto ukuze kulungiswe ukusebenza kongqimba lwe-cable insulation. Izingxenye ze-EVA zingathuthukisa ukuxhumanisa, zithuthukise ukusebenza kwekhebula ngemva kokuxhumanisa.
(4) I-Cross-Linked Ethylene-Propylene-Diene Monomer (XL-EPDM) Insulation Material:
I-XL-EPDM iyi-terpolymer eyakhiwe nge-ethylene, i-propylene, ne-non-conjugated diene monomers, exhunywe ngokuphambana nge-irradiation. Izintambo ze-XL-EPDM zihlanganisa izinzuzo zezintambo ezifakwe i-polyolefin-insulated kanye nezintambo ezivamile ezifakwe enjoloba:
1. Ukuguquguquka, ukuqina, ukunganamatheli emazingeni okushisa aphezulu, ukumelana nokuguga isikhathi eside, nokumelana nezimo zezulu ezinzima (-60 ° C kuya ku-125 ° C).
2. Ukumelana ne-ozone, ukumelana ne-UV, ukusebenza kokufakwa kukagesi, nokumelana nokugqwala kwamakhemikhali.
3. Ukumelana nowoyela nezincibilikisi eziqhathaniswa nokufakwa kwerabha ye-chloroprene yenjongo evamile. Ingakhiqizwa kusetshenziswa imishini evamile yokucubungula i-hot extrusion, iyenze ibe nezindleko.
Izintambo ze-XL-EPDM-insulated zinezinhlobonhlobo zezinhlelo zokusebenza, ezihlanganisa kodwa ezingagcini nje ngamakhebuli kagesi anamandla aphansi, izintambo zomkhumbi, izintambo zokuthungela izimoto, izintambo zokulawula ama-compressor ayisiqandisi, izintambo eziphathwayo zezimayini, okokusebenza kokumba, kanye nemishini yezokwelapha.
Ukungalungi okuyinhloko kwezintambo ze-XL-EPDM zifaka ukumelana nokukhala okungekuhle kanye nezakhiwo ezinamathelayo ezibuthakathaka nezizinamathelayo, ezingathinta ukucubungula okulandelayo.
(5) I-Silicone Rubber Insulation Material
Irabha ye-Silicone inokuguquguquka futhi imelana kahle kakhulu ne-ozone, ukukhishwa kwe-corona, namalangabi, okuyenza ibe yinto efanelekile yokufaka ugesi. Ukusebenza kwayo okuyinhloko embonini kagesi izintambo nezintambo. Izintambo zenjoloba ye-Silicone kanye nezintambo zifaneleka kahle ikakhulukazi ukusetshenziswa ezindaweni ezishisa kakhulu nezifunayo, ezinobude bempilo ende kakhulu uma kuqhathaniswa nezintambo ezijwayelekile. Izicelo ezijwayelekile zihlanganisa amamotho anezinga lokushisa eliphezulu, ama-transformer, amajeneretha, okokusebenza kwe-elekthronikhi nekagesi, izintambo zokuthungela ezimotweni zokuthutha, kanye nezintambo zamandla olwandle nezokulawula.
Okwamanje, izintambo ze-silicone ezifakwe ngerabha ngokuvamile zixhunywa kusetshenziswa ingcindezi yasemkhathini enomoya oshisayo noma isitimu somfutho ophezulu. Kukhona nocwaningo oluqhubekayo lokusebenzisa i-electron beam irradiation yerabha ye-silicone exhumanisa ukuwela, nakuba ingakandile embonini yamakhebula. Ngokuthuthuka kwakamuva kobuchwepheshe bokuxhumanisa i-irradiation, inikezela ngenye indlela enezindleko eziphansi, esebenza kahle kakhulu, futhi ehambisana nemvelo yezinto zokufakwa kwerabha ye-silicone. Ngokukhanya kwe-electron beam noma eminye imithombo yemisebe, ukuxhumanisa okuphumelelayo kwe-silicone injoloba ukwahlukanisa kungafinyelelwa kuyilapho kuvumela ukulawula ukujula nezinga lokuxhumanisa ukuze kuhlangatshezwane nezidingo ezithile zohlelo lokusebenza.
Ngakho-ke, ukusetshenziswa kobuchwepheshe bokuhlanganisa i-irradiation cross-linking wezinto zokuhlanganisa irabha ye-silicone kunesithembiso esibalulekile embonini yezintambo nezintambo. Lobu buchwepheshe kulindeleke ukuthi bunciphise izindleko zokukhiqiza, buthuthukise ukusebenza kahle kokukhiqiza, futhi bufake isandla ekwehliseni umthelela omubi kwezemvelo. Imizamo yocwaningo nentuthuko yesikhathi esizayo ingase iqhubekisele phambili ukusetshenziswa kobuchwepheshe bokuxhumanisa i-irradiation cross-linking materials ye-silicone ye-rubber insulation, ibenze basebenze kabanzi ekukhiqizeni izinga lokushisa eliphezulu, izintambo ezisebenza kakhulu kanye nezintambo embonini kagesi. Lokhu kuzohlinzeka ngezixazululo ezinokwethenjelwa neziqinile zezindawo ezihlukahlukene zohlelo lokusebenza.
Isikhathi sokuthumela: Sep-28-2023