Kwa zaka zambiri, zokambirana za kuwongolera magwiridwe antchito ndi mitundu yogwiritsira ntchito zingwe za aluminiyamu zokhala ndi mkuwa sizinasokonezeke, ndipo chifukwa chomwe zingwe za aluminiyamu zokhala ndi mkuwa zakhala zikukhudzidwa kwambiri ndi makampaniwa zimagwirizana mwachilengedwe ndi kukwera mtengo kwa zinthu zopangira. - mkuwa;Kumbali inayi, kukulitsa kafukufuku ndi chitukuko ndi kukonza magwiridwe antchito a zingwe za aluminiyamu zovala zamkuwa kungathenso kulimbikitsa chitukuko chamakampani a waya ndi zingwe zaku China mwanjira inayake, ndipo ndizofunikira kwambiri mabizinesi.Choncho, ngakhale kuti zingwe za aluminiyamu zovala zamkuwa zakhala zikugwiritsidwa ntchito kwa zaka zambiri, mpaka lero, ngakhale pamene chingwe cha aluminiyamu cha aloyi chikugwedezeka kwambiri, kukambitsirana kwa zingwe za aluminiyamu zamkuwa kwapitirirabe.
Chingwechi chimagawidwa molingana ndi ma conductor osiyanasiyana amkati, pali mitundu iwiri ikuluikulu, imodzi ndi zinthu zamkuwa zoyera, ndipo inayo ndi ya aluminiyamu yovala zamkuwa.Mawu achingerezi oti Aluminiyamu yovala mkuwa ndi: Aluminium ya Copper Clad, motero ma conductor a aluminiyamu ovala mkuwa amatchedwanso: CCA conductors.Waya wa aluminiyamu wopangidwa ndi Copper adayambitsidwa koyamba ndi Germany m'ma 1930, kenako adalimbikitsidwa ku United Kingdom, United States, France ndi mayiko ena, ndipo amagwiritsidwa ntchito kwambiri m'magawo osiyanasiyana.Chingwe cha CATV ku United States chinayamba kuyesa waya wa aluminiyamu wovala zamkuwa koyambirira kwa 1968, ndipo kuchuluka kwake kunafika matani 30,000 / chaka.Tsopano mayiko a ku America asintha zingwe zamkuwa zoyera ndi zingwe za aluminiyamu (zitsulo).M'zaka zaposachedwa, chingwe cha aluminium cha CATV chaku China chayambanso kugwiritsidwa ntchito kwambiri.Mu 2000, boma lidapanga muyezo wamakampani -SJ/T11223-2000, ndipo lidalimbikitsa mwamphamvu kugwiritsa ntchito zingwe za aluminiyamu zamkuwa.Pakadali pano, mawayilesi apa TV aku Shanghai, Guangzhou, Zhejiang, Liaoning ndi malo ena nthawi zambiri atengera zingwe za aluminiyamu zovala zamkuwa, ndipo mayankho ake ndi abwino.
Aluminiyamu yokhala ndi mkuwa ndi mkuwa wokutidwa kwambiri pamwamba pa aluminiyamu kapena aluminiyamu / zitsulo zopangira zitsulo, zomwe zimapangidwa ndi zojambula, ndipo makulidwe a mkuwawo ndi pamwamba pa 0.55mm.Chifukwa cha mawonekedwe a khungu la kufalikira kwa ma frequency apamwamba pa kokondetsa, chizindikiro cha TV cha chingwe chimafalikira pamwamba pa mkuwa wosanjikiza pamwamba pa 0.008mm, ndipo chowongolera chamkati chamkati chamkuwa chimatha kukwaniritsa zofunikira zotumizira ma siginali, ndipo zizindikiro zotumizira zizindikiro zimagwirizana ndi thupi la mkuwa la m'mimba mwake lomwelo.
Ndiye pali kusiyana kotani pakati pa zingwe za aluminiyamu zovala zamkuwa ndi zingwe zamkuwa zoyera potengera momwe amagwirira ntchito, zabwino zake ndi zotani komanso zoperewera zake?Choyamba, ponena za mawotchi amakina, mphamvu ndi kutalika kwa ma conductor a mkuwa oyera ndi aakulu kuposa a aluminiyamu opangidwa ndi mkuwa, zomwe zikutanthauza kuti mkuwa woyera ndi wabwino kuposa aluminiyumu yopangidwa ndi mkuwa malinga ndi makina.Kuchokera pamalingaliro a mapangidwe a chingwe, ubwino wa mphamvu zamakina zamakina oyendetsa bwino amkuwa kuposa ma conductor a aluminiyamu ovala zamkuwa safunikira kwenikweni pakugwiritsa ntchito.Copper-clad aluminium conductor ndi yopepuka kwambiri kuposa mkuwa wangwiro, kotero kulemera konse kwa chingwe cha aluminiyamu chamkuwa ndi chopepuka kuposa chingwe chowongolera chamkuwa, chomwe chidzabweretsa kusavuta kuyenda kwa chingwe ndi kuyimitsidwa ndi kupanga chingwe.Kuonjezera apo, aluminiyumu yokhala ndi mkuwa imakhala yofewa pang'ono kusiyana ndi mkuwa wangwiro, ndipo zingwe zopangidwa ndi zitsulo za aluminiyamu zokhala ndi mkuwa zimakhala bwino kusiyana ndi zingwe zamkuwa zofewa.
Kachiwiri, ponena za ntchito yamagetsi, chifukwa ma conductivity a aluminiyumu ndi oipa kuposa mkuwa, kukana kwa DC kwa kondakitala wa aluminium copper-clad ndikokulirapo kuposa kwa conductor mkuwa woyera.Kaya izi zimakhala ndi zotsatira zimadalira makamaka ngati chingwecho chidzagwiritsidwa ntchito popangira magetsi, monga kupereka mphamvu kwa amplifier, ngati itagwiritsidwa ntchito popangira magetsi, kondakitala wa aluminiyumu wovala mkuwa adzatsogolera ku mphamvu yowonjezera yowonjezera ndipo magetsi adzatha. kuchepetsedwa kwambiri.Pamene mafupipafupi amaposa 5MHz, kukana kwa AC panthawiyi sikusiyana kwambiri ndi ma conductor awiri osiyana.Zoonadi, izi makamaka chifukwa cha zotsatira za khungu la mafupipafupi amakono, kumtunda kwafupipafupi, kuyandikira komweku kumayendera pamwamba pa kondakitala, pamwamba pa kondakitala wa aluminiyamu wamkuwa ndi zinthu zamkuwa zoyera, pamene pafupipafupi ndi okwera mpaka mfundo inayake, zonse panopa yokutidwa mu zinthu zamkuwa mkati otaya.Pa 5MHz, zamakono zimayenda mu makulidwe pafupifupi 0.025 mm pafupi ndi pamwamba, pomwe mkuwa wa kondakitala wa aluminiyamu wovala zamkuwa ndi pafupifupi kuwirikiza kawiri.Kwa zingwe za coaxial, chifukwa chizindikiro chopatsirana chili pamwamba pa 5MHz, kufalikira kwa ma conductor a aluminiyamu ovala zamkuwa ndi ma conductor amkuwa oyera ndi ofanana.The attenuation wa chingwe mu mayeso enieni akhoza kutsimikizira izi.
Chachitatu, kuchokera kuzinthu zachuma, ma conductor a aluminiyamu ovala zamkuwa amagulitsidwa ndi kulemera kwake, ndipo oyendetsa mkuwa woyera amagulitsidwanso ndi kulemera kwake, ndipo mtengo wazitsulo zopangira aluminium zamkuwa ndizokwera mtengo kuposa zopangira zamkuwa zolemera zofanana.Komabe, kulemera komweko kwa aluminiyumu yamkuwa ndi yaitali kwambiri kuposa kutalika kwa woyendetsa mkuwa woyera, ndipo chingwecho chimawerengedwa ndi kutalika.Waya wa aluminiyamu wolemera womwewo wovala mkuwa ndi nthawi 2.5 kutalika kwa waya wamkuwa, ndipo mtengo wake ndi ma yuan mazana angapo ochulukirapo pa tani.Kuphatikizidwa pamodzi, aluminiyumu yovala mkuwa ili ndi ubwino wambiri.Chifukwa chingwe cha aluminiyamu chokhala ndi mkuwa chimakhala chopepuka, mtengo wamayendedwe ndi mtengo woyika chingwecho udzachepetsedwa, zomwe zidzabweretsa kumasuka kwa ntchito yomanga.
Kuphatikiza apo, zingwe za aluminiyamu zovala zamkuwa ndizosavuta kuzisamalira komanso zimakhala ndi ndalama zochepa zosamalira kuposa zingwe zamkuwa zoyera.Kugwiritsa ntchito aluminiyamu yovala zamkuwa kumatha kuchepetsa kulephera kwa maukonde ndikupewa ogwira ntchito pamaneti kuti "adule pachimake m'nyengo yozizira ndikudula khungu m'chilimwe" panthawi yokonza (zotayira zotayira zotalikirapo phukusi kapena machubu a aluminiyamu).Chifukwa cha kusiyana kwakukulu kwa kuchuluka kwa kutentha kwapakati pakati pa kondakitala wamkati wamkuwa ndi chowongolera chakunja cha aluminiyamu, m'chilimwe chotentha, chowongolera chakunja cha aluminiyamu chidzakula kwambiri, ndipo chowongolera chamkati chamkuwa chidzacheperachepera ndipo sangathe kulumikizana ndi zotanuka. mbale pampando wa F-mutu.M'nyengo yozizira, kondakitala wakunja wa aluminiyumu amachepa kwambiri, zomwe zimapangitsa kuti chishango chotchinga chigwe.Pamene coaxial chingwe chamkati chamkuwa chimagwiritsidwa ntchito mu coaxial coefficient, coefficient yowonjezera kutentha pakati pawo ndi aluminiyumu yakunja yakunja ndi yaying'ono, vuto la chingwe pachimake-chikoka chimachepetsedwa kwambiri pamene kutentha kumasintha, ndipo khalidwe lotumizira maukonde limakhala bwino.
Waya ndi chingwe makampani ntchito mkuwa yokutidwa zitsulo zotayidwa waya ndi njira yabwino kuthetsa mavuto panopa wa ogwira ntchito, ndi bimetallic waya wopangidwa ndi wosanjikiza mkuwa kunja kwa waya aluminiyamu, chifukwa cha gawo lake laling'ono, ntchito yabwino kufala ndi ubwino zina. , makamaka oyenera kupanga kondakitala wamkati wa RF coaxial chingwe, poyerekeza ndi waya woyenga wamkuwa, kachulukidwe kake ndi pafupifupi 40% yamkuwa wangwiro.Makhalidwe opatsirana ndiabwino kuposa waya woyenga wamkuwa, womwe ndi woyendetsa bwino kwambiri wa RF coaxial cable line conductor.
Kukula kwa zinthu zamkuwa za aluminiyamu m'tsogolomu kumafunabe makampani onse a waya ndi zingwe, komanso mabizinesi opanga kuti apititse patsogolo ntchitoyo poyesetsa kupititsa patsogolo ntchito komanso kufalitsa chidziwitso chokhudzana ndi zinthu, kuti athandizire kulimbikitsa Makampani opanga ma cable aku China.
Nthawi yotumiza: Feb-28-2024