(1)I-Cross-Linked Low Umsi oPhantsi iZero Halogen Polyethylene (XLPE) Isixhobo sokugquma:
I-XLPE i-insulation material iveliswa ngokudibanisa i-polyethylene (PE) kunye ne-ethylene vinyl acetate (EVA) njengesiseko se-matrix, kunye nezongezelelo ezahlukeneyo ezifana ne-halogen-free flame retardants, i-lubricants, i-antioxidants, njl., ngokusebenzisa inkqubo yokudibanisa kunye ne-pelletizing. Emva kokusetyenzwa kwe-irradiation, i-PE iguqula ukusuka kwisakhiwo semolekyuli esine-linear ibe yi-dimensional structure, isuka kwi-thermoplastic material ukuya kwi-insoluble thermosetting plastic.
Iintambo zokugquma ze-XLPE zineengenelo ezininzi xa kuthelekiswa ne-PE eqhelekileyo ye-thermoplastic:
1. Ukuphucula ukuchasana nokuguqulwa kwe-thermal, ukuphuculwa kweepropathi zomatshini kumaqondo aphezulu okushisa, kunye nokuphucula ukuchasana noxinzelelo lwendalo kunye nokuguga kwe-thermal.
2. Ukuzinza kweekhemikhali eziphuculweyo kunye nokumelana ne-solvent, ukunciphisa ukuhamba okubandayo, kunye nokugcinwa kweempawu zombane. Amaqondo obushushu okusebenza ixesha elide angafikelela kwi-125°C ukuya kwi-150°C. Emva kokulungiswa kwe-cross-linking, iqondo lokushisa elifutshane le-PE linokunyuswa ukuya kwi-250 ° C, livumela ukuba kubekho umthamo ophezulu kakhulu wangoku wokuthwala iintambo zobukhulu obufanayo.
3. Iintambo ze-XLPE-i-insulated zikwabonisa iimpawu ezigqwesileyo zoomatshini, ezingangenwa ngamanzi, kunye nemitha, ezenza zifaneleke kwizicelo ezahlukeneyo, ezinje ngocingo lwangaphakathi kwizixhobo zombane, iintambo zemoto, iintambo zokukhanyisa, iingcingo zokulawula i-automotive low-voltage controling, iingcingo zelocomotive. , iintambo zikaloliwe ezisebenza ngaphantsi komhlaba, iintambo zemigodi ezilungele imekobume, iintambo zeenqanawa, iintambo zodidi olu-1 zemizi-mveliso yamandla enyukliya, iintambo zempompo ezingaphantsi kwamanzi, neentambo zokuhambisa umbane.
Imikhomba-ndlela yangoku kuphuhliso lwemathiriyeli yokugquma i-XLPE ibandakanya i-irradiation cross-linked PE power cable insulation materials, irradiation cross-linked PE izinto zasemoyeni zokugquma, kunye ne-irradiation cross-linked cross-linked flame-retardant polyolefin sheathing materials.
(2)I-Cross-Linked Polypropylene (XL-PP) i-Insulation Material:
I-Polypropylene (PP), njengeplastiki eqhelekileyo, ineempawu ezinjengobunzima obulula, ubuninzi bemithombo yezinto ezibonakalayo, ukuphumelela kweendleko, ukuchasana nokugqwesa kweekhemikhali, ukulula ukubumba, kunye nokuphinda kusetyenziswe. Nangona kunjalo, inezithintelo ezifana namandla aphantsi, ukunganyangeki ubushushu, ukuguquka okubonakalayo kokucutheka, ukuxhathisa okungahambi kakuhle, ukunyanzeliswa kobushushu obuphantsi, kunye nokunganyangeki kobushushu kunye nokuguga kweoksijini. Le mida ithintele ukusetyenziswa kwayo kwizicelo zeentambo. Abaphandi baye basebenzela ukuguqula izinto ze-polypropylene ukuphucula ukusebenza kwazo zonke, kunye ne-irradiation cross-linked modified modified polypropylene (XL-PP) iphumelele ngempumelelo le mida.
Iingcingo ze-XL-PP ezifakwe kwi-insulated zinokuhlangabezana ne-UL VW-1 iimvavanyo zedangatye kunye ne-UL-ilinganiswe nemigangatho ye-150 ° C ye-wire. Kwizicelo zekhebula ezisebenzayo, i-EVA ihlala idityaniswa ne-PE, i-PVC, i-PP, kunye nezinye izinto ukulungelelanisa ukusebenza kwe-cable insulation layer.
Enye yezinto ezingeloncedo kwi-irradiation cross-linked PP kukuba ibandakanya ukusabela okukhuphisanayo phakathi kokusekwa kwamaqela esiphelo esingaxutywanga ngokusabela kokuthotywa kunye neempendulo zokudibanisa phakathi kweemolekyuli ezivuselelweyo kunye ne-molecule enkulu yama-radicals. Uphononongo lubonise ukuba umlinganiselo wokuthotywa kwi-cross-linking reactions kwi-PP irradiation cross-linking imalunga ne-0.8 xa usebenzisa i-gamma-ray irradiation. Ukufezekisa ukuphendulwa okusebenzayo kwe-cross-linking kwi-PP, abagqugquzeli be-cross-link kufuneka bongezwe kwi-irradiation cross-linking. Ukongezelela, ubukhulu obusebenzayo bokudibanisa umnqamlezo bukhawulelwe ngamandla okungena kwimiqadi ye-electron ngexesha lokukhanya. Iradiation ikhokelela ekuvelisweni kwerhasi kunye negwebu, nto leyo eluncedo ekudityanisweni kwemveliso enqamlezileyo kodwa inciphisa ukusetyenziswa kweentambo ezishinyeneyo.
(3) I-Cross-Linked Ethylene-Vinyl Acetate Copolymer (XL-EVA) i-Insulation Material:
Njengoko imfuno yokhuseleko lwekhebula isanda, ukuphuhliswa kweentambo ze-halogen-free flame-retardant cross-linked cross-linked ikhule ngokukhawuleza. Xa kuthelekiswa ne-PE, i-EVA, eyazisa i-vinyl acetate monomers kwikhonkco le-molecular, ine-crystallinity ephantsi, ekhokelela ekuphuculeni ukuguquguquka, ukuchasana kwempembelelo, ukuhambelana kokugcwalisa, kunye neempawu zokutywinwa kobushushu. Ngokubanzi, iipropathi ze-EVA resin zixhomekeke kumxholo we-vinyl acetate monomers kwikhonkco lemolekyuli. Umxholo ophezulu we-vinyl acetate ukhokelela ekwandeni kokungafihli, ukuguquguquka, kunye nokuqina. I-resin ye-EVA inokuhambelana okugqwesileyo kwesihluzi kunye nokunxibelelana okunqamlezayo, iyenza idume ngakumbi kwiintambo eziqhagamshelweyo eziqhagamshelwe kwi-halogen-free flame-retardant.
I-resin ye-EVA ene-vinyl acetate content emalunga ne-12% ukuya kwi-24% idla ngokusetyenziswa ekufakeni ucingo nakwintambo. Kwizicelo zokwenyani zekhebula, i-EVA ihlala idityaniswa ne-PE, i-PVC, i-PP, kunye nezinye izinto ukulungelelanisa ukusebenza kwe-cable insulation layer. Amacandelo e-EVA anokukhuthaza ukudibanisa, ukuphucula ukusebenza kwentambo emva kokudibanisa.
(4) I-Cross-Linked Ethylene-Propylene-Diene Monomer (XL-EPDM) I-Insulation Material:
I-XL-EPDM i-terpolymer eyenziwe nge-ethylene, i-propylene, kunye ne-non-conjugated diene monomers, i-cross-linked through irradiation. Iintambo ze-XL-EPDM zidibanisa iingenelo ze-polyolefin-insulated cables kunye neentambo eziqhelekileyo ze-rubber-insulated:
1. Ukuguquguquka, ukuqina, ukungabambeleli kumaqondo aphezulu, ukuchasana nokuguga kwexesha elide, kunye nokuchasana nemozulu enzima (-60 ° C ukuya kwi-125 ° C).
2. Ukumelana ne-ozone, ukuxhathisa kwe-UV, ukusebenza kombane wokugquma, kunye nokuchasana nokubola kweekhemikhali.
3. Ukumelana ne-oyile kunye nezinyibilikisi ezithelekiseka neenjongo eziqhelekileyo zokugquma irabha ye-chloroprene. Inokuveliswa kusetyenziswa izixhobo eziqhelekileyo zokuqhuba i-extrusion eshushu, iyenza ibe yindleko.
Iintambo ze-XL-EPDM-insulated zineendlela ezininzi zokusetyenziswa, kubandakanywa kodwa kungaphelelanga kwiintambo zamandla aphantsi-voltage, iintambo zeenqanawa, iintambo zokutshisa iimoto, iintambo zokulawula ii-compressor zefriji, i-mining mobile cables, izixhobo zokugaya, kunye nezixhobo zonyango.
Izinto ezingalunganga eziphambili zeentambo ze-XL-EPDM zibandakanya ukunyanzeliswa kokukrazula okungahambi kakuhle kunye neempawu ezinqabileyo zokubambelela kunye ne-self-adhesive, ezinokuchaphazela ukusetyenzwa okulandelayo.
(5) I-Silicone Rubber Insulation Material
Irabha yeSilicone inezinto eziguquguqukayo kunye nokuxhathisa okugqwesileyo kwi-ozone, ukukhutshwa kwe-corona, kunye namadangatye, iyenza ibe yinto efanelekileyo yokugquma umbane. Ukusetyenziswa kwayo okuphambili kwishishini lombane licingo kunye neentambo. Iingcingo zerabha ye-silicone kunye neentambo zifaneleke ngokukodwa ukusetyenziswa kwindawo yobushushu obuphezulu kunye neemeko ezifunwayo, ezinobomi obude kakhulu xa kuthelekiswa neentambo eziqhelekileyo. Ukusetyenziswa okuqhelekileyo kubandakanya iinjini zobushushu obuphezulu, ii-transformers, iijenereyitha, izixhobo zombane kunye nezombane, iintambo zokutshisela kwiimoto zothutho, kunye neentambo zamandla olwandle kunye nokulawula.
Okwangoku, iintambo ze-silicone zerabha-ezigqunyiweyo ziqhelekile ukudityaniswa kusetyenziswa nokuba yi-atmospheric yomoya oshushu okanye umphunga woxinzelelo oluphezulu. Kukho uphando oluqhubekayo lokusebenzisa i-electron beam irradiation kwi-rubber ye-silicone edibanisa i-cross-linking, nangona ingekabikho kwishishini lentambo. Ngenkqubela phambili yamva nje kwitekhnoloji ye-irradiation cross-linking, ibonelela ngexabiso eliphantsi, elisebenzayo ngakumbi, kunye nelinye elinobuhlobo nokusingqongileyo kwimathiriyeli yokugquma irabha ye-silicone. Ngokusebenzisa i-electron beam irradiation okanye eminye imithombo yemitha, ukudibanisa okusebenzayo okunqamlezileyo kwe-silicone yokugquma irabha kunokufezekiswa ngelixa uvumela ulawulo phezu kobunzulu kunye neqondo lokuxhuma okunqamlezayo ukuhlangabezana neemfuno ezithile zesicelo.
Ke ngoko, ukusetyenziswa kwetekhnoloji yokudibanisa iradiation cross-linking yezixhobo zokugquma irabha ye-silicone kunesithembiso esibalulekileyo kushishino lweentambo kunye neentambo. Obu bugcisa kulindeleke ukuba bunciphise iindleko zemveliso, buphucule ukusebenza kakuhle kwemveliso, kwaye negalelo ekunciphiseni iimpembelelo ezimbi zokusingqongileyo. Uphando lwexesha elizayo kunye neenzame zophuhliso zingaqhubela phambili ukusetyenziswa kwe-irradiation cross-linking technology kwizinto zokugquma irabha ye-silicone, ibenze basebenze ngokubanzi kwimveliso yobushushu obuphezulu, iingcingo eziphezulu kunye neentambo kumashishini ombane. Oku kuya kubonelela ngezisombululo ezinokwethenjelwa kunye nezizinzileyo kwiindawo ezahlukeneyo zesicelo.
Ixesha lokuposa: Sep-28-2023