Thaum xyoo 1980s, lub qhov rooj thiab qhov rais yog aluminium alloy qhov rais ua los ntawm aluminium alloy profiles. Txawm hais tias qee qhov kev tsis txaus ntawm cov qhov rais hlau tau raug daws, cov profiles lawv tus kheej yog cov khoom siv hlau nrog cov cua kub ceev thiab txias conduction. Tag nrho lub qhov rais K ntawm cov qhov rais steel thiab aluminium alloy qhov rais Qhov tseem ceeb yog tag nrho saum toj no 6.0w / (m2.K), thiab cov teeb meem ntawm kev sib khi thiab kev txuag hluav taws xob tsis tau daws teeb meem. Txawm hais tias insulating iav tuaj yeem nruab, K tus nqi ntawm tag nrho lub qhov rais tuaj yeem ncav cuag li 4.5w / (m2.K).
Nyob rau hauv nruab nrab mus rau lig 1990s, aluminium alloy rwb thaiv tsev qhov rooj thiab qhov rais nrog cov choj tawg tau tshwm sim nyob rau hauv lub qhov rooj thiab qhov rais lag luam, uas yog high-end qhov rooj thiab qhov rais khoom nyob rau hauv lub qhov rooj thiab qhov rais lag luam thaum lub sij hawm ntawd. High-strength insulating thiab kub-insulating hluavtaws cov ntaub ntawv yog siv nyob rau hauv nruab nrab ntawm lub profile tsim, thiab high-tech xws li hmoov txau, fluorocarbon spraying thiab resin kub luam ntawv yog siv rau saum npoo. Nws tuaj yeem ua tau raws li qhov kev hloov pauv xim uas xav tau.
Qhov zoo tshaj plaws ntawm kev tawg choj aluminium alloy insulated qhov rooj thiab qhov rais yog lub teeb yuag, siab zog, zoo dej thiab cua nruj, hluav taws kub tsis kam, loj teeb pom kev zoo, atmospheric corrosion kuj, lub neej ntev kev pab cuam, zoo nkauj nyhuv, thiab ib puag ncig zoo.
