How to choose a good aluminium door&fenestro

Aluminum alloy doors and windows refer to doors and windows made of aluminum alloy extruded profiles as frames, sashes and fans. They are called aluminum alloy doors and windows, or aluminum doors and windows for short. Including aluminum and wood composite doors and windows, which are made of aluminum alloy as the base of stress rods (rods that bear and transmit their own weight and load), referred to as aluminum-wood composite doors and windows, aluminum-plastic composite doors and windows.
How to buy aluminum alloy doors and windows:
Unue, the sealing performance of aluminum alloy windows
Experts on aluminum alloy doors, choose aluminum alloy doors with inlaid glass, especially for products with hollow glass design, we must pay attention to its sealing performance. If the sealing is not good, it will cause dirt and dirt in the hollow layer, which will affect the appearance. The brand products use high-quality sealing tape and advanced heat-pressure sealing technology for comprehensive sealing treatment, which can effectively prevent dust, water, and outstanding sound insulation.
Second, aluminum alloy window components

The connection of aluminum alloy door and window components should be firm, and the connection part needs to be sealed and waterproofed with corrosion-resistant filling material.
Three, aluminum alloy window sign
Manufacturers with formal or production licenses have marked the product's logo on obvious parts of their aluminum alloy products, including: manufacturer's name or trademark, product name, product model or mark, manufacturing date or number. The packing box should be clearly marked with the words "moisture-proof", "handle with care" kaj "up".
Fourth, the price of aluminum alloy windows
Ĝenerale, high-quality aluminum alloy doors and windows cost about 30% higher than low-quality aluminum alloy doors and windows due to high production costs. In order to reduce costs, some manufacturers cut corners and cut materials in order to reduce the cost. The hidden dangers of the products are relatively large, and generally they should not be used. It is best to use products from regular aluminum alloy door and window manufacturers. You can pay more attention to this information when buying, so that you can take less detours.

Five, aluminum alloy window processing quality
High-quality aluminum alloy door, fine processing, welding is particular, especially some spliced ​​parts are very flat. Inferior aluminum alloy doors and windows, blindly selected aluminum profiles and specifications, rough processing, door frame corners and other positions can not be stitched flat, sometimes even a large gap appears. Consumers should pay special attention to check for welding defects, such as open welding and missing welding, when purchasing.
Material of aluminum alloy window
Whether it is a broken bridge thermal insulation aluminia profilo, the wall thickness of the main profile should be greater than 1.4mm; the color of the same aluminum alloy profile should be the same, if the color difference is obvious, it is not suitable to buy; check the surface of the aluminum alloy profile, there should be no depression or bulging; aluminum Alloy doors and windows avoid buying profiles with open air bubbles (white spots) and slag (black spots) on the surface, and obvious defects such as cracks, burrs, peeling; the thickness of the oxide film should reach 10 microns. Scratch to see if the oxide film on the surface can be wiped off.

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