Aluminum alloy is one of the commonly used materials in the machining industry, aluminum alloy plate has also become the mainstream products in the processing industry, many people may not understand how to judge the quality of aluminum alloy plate, here we will understand the purchase skills of aluminum alloy plate!

How to judge the quality of aluminum alloy hand plate?

1 hand plate color: the same root aluminum alloy hand plate color should be consistent, such as color difference is obvious, that is not suitable for purchase. Usually aluminum alloy hand plate cross section color is silver white, uniform texture, if the color is dark, can be determined to recycle aluminum or waste aluminum furnace forging.

2. The strength of the hand board: when choosing and purchasing, the hand board can be moderately bent, if no effort will be bent, then it can be identified that the strength of the aluminum hand board is not up to standard, in addition, the strength of the hand board is not the harder the better, aluminum has a certain toughness, non-hard material, use this characteristic to forge into different shapes, so the owner needs to identify the brand, careful observation.

3. The thickness of the hand plate: commonly used 70, 90 series of aluminum window hand plate, its wall thickness should be 1.2-2.0 mm. The standard accuracy of aluminum alloy hand plate is 0.2mm, the wall thickness of aluminum alloy hand plate is 0.4-0.6 error, and the thickness of the heavy part of the upper and lower beam of the frameless window is 3-4mm, far exceeding the national standard.

4. Hand board oxidation degree: when choosing the hand board surface can be lightly scratched to see whether the surface of the oxide film can be wiped off. Of course, this is not to be carried out directly on the sample window, the owner can operate in the merchant display material supplier.

5. Flatness of the hand plate: check the surface of the aluminum alloy hand plate, there should be no depression or bulge. The aluminum hand plate processed by regular manufacturers has smooth surface and bright surface. If it is a small workshop due to the machine or raw materials, the surface of the hand plate will appear slightly concave and convex, and the balcony window of the synthesis of such aluminum alloy hand plate is easy to be oxidized and deformed later.

6 hand gloss: aluminum alloy hand plate to avoid the choice of open surface bubbles and ash, as well as cracks, burr, peeling and other obvious defects of the hand plate. If there are the above phenomena, it can be concluded that it is recycled aluminum or waste aluminum secondary processing molding. Such materials are prone to cracking and oxidation in the late period due to uneven texture and messy alloy ratio.