Ib qho ntawm qhov sib txawv tseem ceeb ntawm 3PE anticorrosive steel kav thiab cov kav dej yas yog nyob hauv lawv cov lus txhais.
Plastic-coated kav, tseem hu ua yas-coated composite steel kav, steel-yas kav, los yog yas-coated composite steel kav, yog raws li cov kav hlau. Lawv siv high-pressure polyethylene los yog epoxy resin ua thawj cov khoom siv los ntawm kev kub-dip. Qhov no yog ua raws li cov txheej txheem xws li txau, dov, dipping, thiab degreasing los siv cov txheej txheem polyethylene anticorrosive rau sab hauv los yog txheej epoxy anticorrosive rau ob sab hauv thiab sab nrauv ntawm cov yeeb nkab steel. Nyob rau hauv sib piv, 3PE anticorrosive steel kav xa mus rau steel kav nrog peb-txheej isoprene roj hmab txheej rau sab nraud anticorrosion. Cov khoom siv hauv paus tuaj yeem yog seamless steel yeeb nkab, kauv welded yeeb nkab, lossis longitudinal welded yeeb nkab. Nws cov qauv anticorrosion muaj ib txheej ntawm epoxy hmoov, txheej ntawm cov nplaum, thiab txheej ntawm polyethylene.
Lwm qhov sib txawv tseem ceeb nyob hauv lawv cov yam ntxwv ua haujlwm.
Cov kav dej yas-coated, vim lawv cov txheej txheem tsim khoom thiab cov khoom siv los tiv thaiv corrosion, muaj kev tiv thaiv corrosion zoo heev thiab tsis kam mus rau qhov kub thiab txias. Lawv cov cuab yeej rwb thaiv tsev zoo tshaj plaws ua rau lawv haum raws li cov hlua tiv thaiv rau cov cables, txo qhov kev pheej hmoo ntawm kev xau. Lawv kuj ua kom pom muaj zog tiv thaiv kev cuam tshuam, tiv thaiv cov teeb liab sab nraud cuam tshuam thaum siv los ua cov kav dej tiv thaiv kab. Tsis tas li ntawd, lawv khav theeb zoo dov bearing siab zog, muaj peev xwm tiv taus siab txog li 5Mpa. Nrog cov phab ntsa du thiab burr-dawb, lawv tuaj yeem siv tau raws li lub tes tsho cable.
Lub caij no, 3PE anticorrosive steel kav, ua tsaug rau lawv cov khoom siv raw thiab cov txheej txheem ntau lawm, muaj kev pab cuam lub neej ntev, cov ntsiab lus siab, kev ntseeg tau zoo, thiab tiv thaiv kev laus. Nyob rau hauv ib txwm ua haujlwm kub thiab kev kub ntxhov, lawv lub neej kev pabcuam tuaj yeem tshaj 50 xyoo, tso cai rau kev ua haujlwm ntev thaum txuag cov peev txheej tseem ceeb thiab txo cov nqi hluav taws xob. Lawv kuj muaj zog noo noo thiab corrosion kuj, muaj peev xwm tiv taus tshuaj lom neeg corrosion los ntawm roj av, natural gases, vaporized gases, thiab dag gases. Cov tshuaj nyob rau hauv cov av tsis degrade lub kav dej. Tsis tas li ntawd, 3PE anticorrosive steel kav yog lub teeb yuag, yooj yim los tuav, thiab yooj yim rau nruab, tso cai rau faus ncaj qha rau hauv av lossis hauv qab dej yam tsis muaj trench ntxiv. Lawv tuaj yeem muab faus rau hauv cov av khov hauv qee qhov chaw ib puag ncig.
