Kana sisitimu yetambo yakaiswa pasi pevhu, munzvimbo yepasi pevhu kana mumvura inowanzo ungana mvura, kuitira kudzivirira utsi hwemvura nemvura kuti isapinde muchikamu chekudzimisa tambo uye kuve nechokwadi chekuti tambo inogara kwenguva refu, tambo inofanira kuva nechimiro che radial impervious barrier layer, chinosanganisira sheath yesimbi uye sheath yesimbi-purasitiki. Lead, mhangura, aruminiyamu nezvimwe zvinhu zvesimbi zvinowanzo shandiswa semasheath esimbi etambo; Tepi yesimbi-purasitiki uye sheath yepolyethylene zvinoumba sheath yesimbi-purasitiki. Sheath yesimbi-purasitiki, inozivikanwawo se comprehensive sheathing, inoratidzwa nekupfava, kutakurwa, uye kupenya kwemvura kudiki zvikuru pane purasitiki, rabha sheathing, yakakodzera nzvimbo dzine zvinodiwa zvakanyanya zvekudzivirira mvura, asi kana ichienzaniswa ne sheathing yesimbi, sheathing yesimbi-purasitiki ichiri ne permeability yakati.
Mumitemo yeEuropean medium voltage cables yakaita seHD 620 S2: 2009, NF C33-226: 2016, UNE 211620: 2020, tepi yealuminium yakafukidzwa nepurasitiki ine divi rimwe chete inoshandiswa sechivharo chakazara chekudzivirira mvura yetambo dzemagetsi. Rutivi rwesimbi rwerutivi rumwe chetetepi yepurasitiki yakafukidzwa nearuminiyamuInobata zvakananga nechidzitiro chekudzivirira kupisa, uye inotamba basa rechidzitiro chesimbi panguva imwe chete. MuEuropean standard, zvinodikanwa kuyedza simba rekupwanya pakati petepi yealuminium yakafukidzwa nepurasitiki nesheath yetambo uye kuita bvunzo dzekudzivirira ngura kuti uedze kuramba kwemvura kwetambo; Panguva imwe chete, zvinodikanwawo kuyera kuramba kweDC kwetepi yealuminium yakafukidzwa nepurasitiki kuti uedze kugona kwayo kutakura magetsi mapfupi.
1. Kupatsanurwa kwepurasitiki yakafukidzwa nearuminiyamu tepi
Zvichienderana nehuwandu hwakasiyana hwemafirimu epurasitiki akafukidzwa nearuminiyamu substrate, inogona kukamurwa kuita mhando mbiri dzemaitiro ekuputira kwenguva refu: tepi yearuminiyamu yakafukidzwa nepurasitiki ine mativi maviri uye tepi yearuminiyamu yakafukidzwa nepurasitiki ine mativi maviri.
Rutivi rwakakwana rwekudzivirira mvura uye runodzivirira hunyoro rwetambo dzemagetsi dzepakati nepashoma uye tambo dzemagetsi dzinogadzirwa netepi yealuminium ine mativi maviri uye polyethylene, polyolefin nedzimwe sheathing dzinoita basa remvura inoyerera uye dzinodzivirira hunyoro. Tepi yealuminium ine mativi maviri inoshandiswa zvakanyanya kudzivirira tambo dzekutaurirana nesimbi.
Mune mamwe maitiro ekuEurope, pamusoro pekushandiswa sechivharo chakazara chisingapindi mvura, tepi yealuminium yakaputirwa nepurasitiki ine mativi maviri inoshandiswawo sechivharo chesimbi chetambo dzemagetsi ari pakati nepakati, uye chivharo chetepi yealuminium chine zvakanakira zviri pachena pamutengo kana tichienzanisa nechivharo chemhangura.
2. Maitiro ekuputira kwenguva refu epurasitiki yakaputirwa nearuminiyamu tepi
Maitiro ekuputira kwenguva refu e aluminium-plastic composite strip anoreva maitiro ekushandura tepi yealuminium yakafukidzwa nepurasitiki kubva pachimiro chepakutanga chakati sandara kuenda pachimiro chechubhu kuburikidza nekuchinja kwechimiro, uye kubatanidza mipendero miviri yetepi yealuminium yakafukidzwa nepurasitiki. Mipendero miviri yetepi yealuminium yakafukidzwa nepurasitiki yakati sandara uye yakatsetseka, mipendero yakabatana zvakasimba, uye hapana kukwesha kwealuminium-plastic.
Maitiro ekushandura tepi yealuminium yakaputirwa nepurasitiki kubva pachimiro chakati sandara kuenda pachimiro chetuburu anogona kuitwa nekushandisa die yekuputira yakareba inoumbwa nedie yekuputira yakareba, die yekudzikamisa mutsara uye die yehukuru. Dhayagiramu yekuyerera kwedie yekuputira yakareba yetepi yealuminium yakaputirwa nepurasitiki inoratidzwa mumufananidzo unotevera. Mipendero miviri yetepi yealuminium yakaputirwa nepurasitiki inogona kusungirirwa nenzira mbiri: kusungirirwa kunopisa uye kusungirirwa kunotonhora.
(1) Maitiro ekubatana kwekupisa
Maitiro ekubatanidza thermal ndeyekushandisa purasitiki yetepi yearuminiyamu yakaputirwa nepurasitiki kuti ipfave pa70~90℃. Mukuchinja kwetepi yearuminiyamu yakaputirwa nepurasitiki, purasitiki iri panosangana tepi yearuminiyamu yakaputirwa nepurasitiki inodziiswa uchishandisa pfuti inopisa yemhepo kana blowtorch flame, uye mativi maviri etepi yearuminiyamu yakaputirwa nepurasitiki anobatanidzwa pamwe chete uchishandisa viscosity mushure mekupfava kwepurasitiki. Namatira mativi maviri etepi yearuminiyamu yakaputirwa nepurasitiki zvakasimba.
(2) Maitiro ekubatanidza zvinhu panguva yechando
Maitiro ekubatanidza zvinhu zvinotonhora akakamurwa kuita mhando mbiri, imwe ndeyekuwedzera die refu rakagadzikana pakati pe caliper die ne extruder head, kuitira kuti plastic coated aluminum tape irambe yakagadzikana isati yapinda mumusoro we extruder, kubuda kwe stable die kuri pedyo nekubuda kwe extruder's die core, uye aluminium-plastic composite inopinda pakarepo mu extruder's die core mushure mekubvisa stable die. Kumanikidzwa kwe extrusion yezvinhu zve sheath kunochengetedza tubular structure ye plastic coated aluminum tape, uye tembiricha yepamusoro ye extruded plastic inonyorovesa plastic layer ye plastic coated aluminum tape kuti ipedzise basa re bonding. Iyi tekinoroji yakakodzera double-sided plastic coated aluminum tape, michina yekugadzira iri nyore kushandisa, asi mold processing yakaoma, uye plastic coated aluminum tape iri nyore kudzokororwa.
Imwe nzira yekubatanidza inotonhora ndeyekushandisa chibatiso chinonamira chinonyunguduka, chibatiso chinonyunguduka chinonyunguduka nemuchina wekuwedzera munzvimbo yemold ye longitudinal wrap horn yakadzvanywa parutivi rumwe rwemucheto wekunze wepurasitiki yakaputirwa nearuminiyamu, nzvimbo mbiri dzemucheto dzetepi yearuminiyamu yakaputirwa nepurasitiki kuburikidza nemutsara wakagadzikana uye saizi inofa mushure mekubatana kwehot melt. Iyi tekinoroji yakakodzera tepi yearuminiyamu yakaputirwa nepurasitiki ine mativi maviri uye tepi yearuminiyamu yakaputirwa nepurasitiki ine mativi maviri. Midziyo yayo yekugadzira nekugadzira mold iri nyore kushandisa, asi mhedzisiro yayo yekubatanidza inokanganiswa zvikuru nehunhu hwechibatiso chinonyunguduka chinonyunguduka.
Kuti tambo yemagetsi ishande zvakanaka, simbi inofanira kunge yakabatana nemagetsi nechidziviriro chetambo, saka tepi yepurasitiki ine mativi maviri inofanira kushandiswa sechidziviriro chesimbi chetambo. Semuenzaniso, maitiro ekubatanidza anopisa ataurwa mupepa rino akakodzera chete kune mativi maviri.tepi yepurasitiki yakafukidzwa nearuminiyamu, nepo nzira yekubatanidza inotonhora uchishandisa chinonamira chinonyunguduka chinopisa yakanyanya kukodzera tepi yearuminiyamu yakaputirwa nepurasitiki ine mativi maviri.
Nguva yekutumira: Chikunguru-30-2024