(1)Hla-Txuas Tsawg Haus Luam Yeeb Zero Halogen Polyethylene (XLPE) Cov Khoom Siv Hluav Taws Xob:
XLPE rwb thaiv tsev khoom yog tsim los ntawm compounding polyethylene (PE) thiab ethylene vinyl acetate (EVA) raws li lub hauv paus matrix, nrog rau ntau yam additives xws li halogen-dawb nplaim retardants, lubricants, antioxidants, thiab lwm yam, los ntawm ib tug compounding thiab pelletizing txheej txheem. Tom qab irradiation ua, PE hloov los ntawm ib tug linear molecular qauv mus rau hauv peb-dimensional qauv, hloov los ntawm ib tug thermoplastic khoom mus rau ib tug insoluble thermosetting yas.
XLPE rwb thaiv tsev cables muaj ntau qhov zoo piv rau cov thermoplastic PE zoo tib yam:
1. Txhim kho kev tiv thaiv thermal deformation, txhim kho cov khoom siv kho tshuab ntawm qhov kub thiab txias, thiab txhim kho kev tiv thaiv ib puag ncig kev ntxhov siab tawg thiab thermal aging.
2. Txhim kho cov tshuaj lom neeg ruaj khov thiab hnyav ua haujlwm, txo cov dej txias, thiab tswj cov khoom hluav taws xob. Lub sijhawm ua haujlwm kub tuaj yeem ncav cuag 125 ° C txog 150 ° C. Tom qab kev sib txuas ntawm kev sib txuas, qhov luv-circuit kub ntawm PE tuaj yeem nce mus rau 250 ° C, tso cai rau lub peev xwm nqa tau ntau dua tam sim no rau cables ntawm tib lub thickness.
3. XLPE-insulated cables kuj muaj cov khoom zoo heev, tsis muaj dej tsis zoo, thiab hluav taws xob tiv thaiv hluav taws xob, ua rau lawv tsim nyog rau ntau yam kev siv, xws li cov hlua hauv cov khoom siv hluav taws xob, lub cev muaj zog, cov khoom siv hluav taws xob, cov khoom siv hluav taws xob, hluav taws xob hluav taws xob tsis tshua muaj hluav taws xob tswj cov xov hlau, locomotive wires. , subway cables, environmentally friendly mining cables, nkoj cables, 1E-qib cables rau nuclear fais fab nroj tsuag, submersible twj cables, thiab fais fab kis cables.
Cov lus qhia tam sim no hauv XLPE rwb thaiv tsev cov ntaub ntawv tsim muaj xws li irradiation cross-linked PE fais fab cable rwb thaiv tsev cov ntaub ntawv, irradiation cross-linked PE aerial rwb thaiv tsev cov ntaub ntawv, thiab irradiation cross-linked nplaim-retardant polyolefin sheathing cov ntaub ntawv.
(2)Hla-Txuas Polypropylene (XL-PP) rwb thaiv tsev khoom:
Polypropylene (PP), raws li cov yas zoo ib yam, muaj cov yam ntxwv xws li lub teeb yuag, ntau cov khoom siv raw, tus nqi-zoo, tshuaj lom neeg corrosion kuj, yooj yim ntawm molding, thiab recyclability. Txawm li cas los xij, nws muaj cov kev txwv xws li lub zog tsis muaj zog, tsis muaj cua sov tsis zoo, qhov loj me me deformation, tsis muaj kev nkag siab tsis zoo, qhov kub thiab txias brittleness, thiab tsis zoo tiv thaiv tshav kub thiab oxygen laus. Cov kev txwv no tau txwv nws txoj kev siv hauv kev siv cable. Cov kws tshawb fawb tau ua haujlwm los hloov cov ntaub ntawv polypropylene los txhim kho lawv cov kev ua tau zoo tag nrho, thiab irradiation cross-linked modified polypropylene (XL-PP) tau kov yeej cov kev txwv no.
XL-PP insulated xov hlau tuaj yeem ua tau raws li UL VW-1 kev ntsuas hluav taws xob thiab UL-rated 150 ° C hlau qauv. Hauv kev siv cable siv tau, EVA feem ntau sib xyaw nrog PE, PVC, PP, thiab lwm yam khoom siv los kho qhov kev ua tau zoo ntawm cov kab hluav taws xob rwb thaiv tsev.
Ib qho ntawm qhov tsis zoo ntawm irradiation cross-linked PP yog tias nws muaj kev sib tw cov tshuaj tiv thaiv ntawm kev tsim ntawm cov pab pawg uas tsis muaj qhov kawg los ntawm kev cuam tshuam degradation thiab kev sib txuas sib txuas ntawm cov molecules txhawb nqa thiab loj molecule dawb radicals. Cov kev tshawb fawb tau pom tias qhov sib piv ntawm degradation rau kev sib txuas sib txuas hauv PP irradiation cross-linking yog kwv yees li 0.8 thaum siv gamma-ray irradiation. Txhawm rau ua kom muaj txiaj ntsig zoo ntawm kev sib txuas sib txuas hauv PP, cov neeg txhawb nqa kev sib txuas yuav tsum tau ntxiv rau irradiation cross-linking. Tsis tas li ntawd, qhov ua tau zoo ntawm qhov sib txuas ntawm qhov sib txuas yog txwv los ntawm kev nkag mus ntawm cov kab hluav taws xob hluav taws xob thaum lub sij hawm irradiation. Irradiation ua rau kev tsim cov pa roj thiab foaming, uas yog qhov zoo rau kev sib txuas ntawm cov khoom nyias nyias, tab sis txwv tsis pub siv cov tuab-walled cables.
(3) Hla-Txuas Ethylene-Vinyl Acetate Copolymer (XL-EVA) Cov Khoom Siv Hluav Taws Xob:
Raws li qhov kev thov rau cable kev nyab xeeb nce, kev txhim kho ntawm halogen-dawb nplaim-retardant cross-linked cables tau loj hlob sai. Piv nrog rau PE, EVA, uas qhia txog vinyl acetate monomers rau hauv cov saw hlau molecular, muaj qis crystallinity, uas ua rau kev txhim kho yooj yooj yim, cuam tshuam tsis kam, muab tub lim compatibility, thiab kub sealing zog. Feem ntau, cov khoom ntawm EVA resin nyob ntawm seb cov ntsiab lus ntawm vinyl acetate monomers hauv cov saw hlau molecular. Cov ntsiab lus vinyl acetate siab dua ua rau muaj pob tshab, hloov tau, thiab tawv. EVA resin muaj cov khoom siv zoo sib xws thiab kev sib txuas sib txuas, ua rau nws nrov zuj zus nyob rau hauv halogen-dawb nplaim-retardant cross-linked cables.
EVA resin nrog vinyl acetate cov ntsiab lus ntawm kwv yees li 12% mus rau 24% feem ntau yog siv rau hauv cov hlau thiab cable rwb thaiv tsev. Hauv kev siv cable tiag tiag, EVA feem ntau sib xyaw nrog PE, PVC, PP, thiab lwm yam khoom siv los kho qhov kev ua tau zoo ntawm cov kab hluav taws xob rwb thaiv tsev. EVA Cheebtsam tuaj yeem txhawb kev sib txuas sib txuas, txhim kho kev ua haujlwm cable tom qab kev sib txuas.
(4) Cross-Linked Ethylene-Propylene-Diene Monomer (XL-EPDM) Cov Khoom Siv Hluav Taws Xob:
XL-EPDM yog terpolymer uas muaj ethylene, propylene, thiab tsis-conjugated diene monomers, sib txuas los ntawm irradiation. XL-EPDM cables muab qhov zoo ntawm polyolefin-insulated cables thiab cov roj hmab-insulated cables:
1. Kev ua kom muaj zog, ua kom tsis muaj zog, tsis muaj adhesion ntawm qhov kub thiab txias, kev laus lub sij hawm ntev, thiab tsis kam mus rau huab cua hnyav (-60 ° C txog 125 ° C).
2. Ozone kuj, UV tsis kam, hluav taws xob rwb thaiv tsev kev ua tau zoo, thiab tsis kam mus rau tshuaj corrosion.
3. Kev tiv thaiv rau cov roj thiab cov kuab tshuaj piv rau cov khoom siv chloroprene roj hmab rwb thaiv tsev. Nws tuaj yeem tsim tau siv cov khoom siv kub extrusion, ua rau nws raug nqi.
XL-EPDM-insulated cables muaj ntau yam kev siv, suav nrog tab sis tsis txwv rau cov hluav taws xob qis hluav taws xob, lub nkoj xa hluav taws xob, hluav taws xob hluav taws xob, hluav taws xob hluav taws xob, tswj cables rau tub yees compressors, mining mobile cables, drilling khoom, thiab cov khoom siv kho mob.
Qhov tsis zoo ntawm XL-EPDM cables suav nrog cov kua muag tsis zoo thiab cov nplaum tsis muaj zog thiab nws tus kheej-nplaum, uas tuaj yeem cuam tshuam rau kev ua haujlwm tom ntej.
(5) Silicone Rubber Rwb thaiv tsev khoom
Silicone roj hmab muaj qhov yooj yim thiab zoo heev tiv thaiv ozone, corona tawm, thiab nplaim taws, ua rau nws yog ib qho khoom siv zoo tshaj plaws rau hluav taws xob rwb thaiv tsev. Nws thawj daim ntawv thov hauv kev lag luam hluav taws xob yog rau cov xov hlau thiab cables. Silicone roj hmab xov hlau thiab cables yog tshwj xeeb tshaj yog haum rau siv nyob rau hauv high-temperature thiab xav tau ib puag ncig, nrog rau lub neej ntev dua piv rau cov qauv cables. Feem ntau siv xws li cov motors kub, transformers, generators, hluav taws xob thiab hluav taws xob khoom, ignition cables nyob rau hauv tsheb thauj mus los, thiab marine zog thiab tswj cables.
Tam sim no, silicone roj hmab-insulated cables feem ntau yog hla kev sib txuas siv ob qho tib si atmospheric siab nrog cua kub los yog high-pressure chav. Tseem muaj kev tshawb fawb txuas ntxiv mus rau kev siv hluav taws xob hluav taws xob hluav taws xob rau kev sib txuas ntawm silicone roj hmab, txawm hais tias nws tseem tsis tau muaj nyob hauv kev lag luam cable. Nrog rau kev nce qib tsis ntev los no hauv irradiation cross-linking thev naus laus zis, nws muaj tus nqi qis dua, muaj txiaj ntsig zoo dua, thiab tus phooj ywg zoo ib puag ncig rau cov khoom siv silicone roj hmab rwb thaiv tsev. Los ntawm electron beam irradiation los yog lwm yam hluav taws xob qhov chaw, kev sib txuas ntawm silicone roj hmab rwb thaiv tsev zoo tuaj yeem ua tiav thaum tso cai rau kev tswj xyuas qhov tob thiab qib ntawm kev sib txuas kom tau raws li cov ntawv thov tshwj xeeb.
Li no, daim ntawv thov ntawm irradiation cross-linking technology rau silicone roj hmab rwb thaiv tsev cov ntaub ntawv tuav cov lus cog tseg tseem ceeb hauv kev lag luam hlau thiab cable. Cov thev naus laus zis no xav kom txo cov nqi tsim khoom, txhim kho kev tsim khoom, thiab pab txo qis kev cuam tshuam ib puag ncig. Kev tshawb fawb thiab kev tsim kho yav tom ntej yuav ua rau kev siv cov irradiation cross-linking technology rau silicone roj hmab rwb thaiv tsev cov ntaub ntawv, uas ua rau lawv siv dav siv nyob rau hauv high-temperature, high-kev ua tau zoo nyob ntawm tej thiab cables nyob rau hauv hluav taws xob kev lag luam. Qhov no yuav muab cov kev daws teeb meem txhim khu kev qha thiab ruaj khov rau ntau qhov chaw thov.
Post lub sij hawm: Sep-28-2023