The method of judging whether the quality of aluminum meets the standard

In the purchase of broken bridge aluminum doors and Windows, the quality of aluminum directly affects the performance and service life of doors and Windows. The following are some effective methods that can help you determine whether the quality of aluminum meets the standard:

1. Check the wall thickness of the aluminum

Wall thickness standard: According to national standards, the aluminum wall thickness of broken bridge aluminum doors and Windows shall not be less than 1.4mm. For the exterior window, the wall thickness should be more than 1.8mm. You can use tools such as vernier calipers to directly measure the wall thickness of the aluminum to ensure it meets the standard.

Pay attention to the measurement position: When measuring, pay attention to the selection of different positions of aluminum for multiple measurements to prevent merchants from displaying only the thickest place, leading to misleading.

2. Material composition check

Primary aluminum vs. Recycled aluminum: High-quality aluminum should use primary aluminum, not recycled aluminum. The strength and durability of recycled aluminum is usually poor, and it is easy to cause deformation or damage to doors and Windows. You can ask the supplier for proof of material to ensure that it is native aluminum.

3. Surface quality observation

Surface gloss and treatment: The surface of high-quality aluminum should be smooth, high gloss, no obvious scratches, bumps or oxidation. The surface of inferior aluminum is often rough, and it is prone to fading or discoloration after a period of use.

Oxide film thickness: The oxide film thickness of aluminum should meet the national standard, which is usually required to be above 10 microns. The role of oxide film is to improve the corrosion resistance and weather resistance of aluminum, you can ask the supplier about the relevant test report.

4. Quality of heat insulation strip

Insulation strip material: The insulation strip of broken bridge aluminum doors and Windows should use polyamide (PA66) material, rather than cheap PVC material. High quality insulation strip can effectively improve the thermal insulation performance of doors and Windows, you can judge the material by observing the color and texture of the insulation strip.

5. Selection of glass and hardware accessories

Glass quality: Ensure that the glass used meets 3C certification standards, and that the thickness and specifications meet the requirements. High quality glass can enhance the insulation and sound insulation of doors and Windows.

Hardware accessories: Choose well-known brands of hardware accessories to ensure their durability and flexibility. Poor quality hardware fittings may lead to the use of doors and Windows is not smooth, and even affect safety.

Sum up

Through the above methods, you can effectively judge whether the quality of aluminum meets the standard. In the purchase of broken bridge aluminum doors and Windows, be sure to pay attention to the wall thickness of aluminum, material composition, surface quality, insulation material and the choice of glass and hardware accessories to ensure the purchase of high-quality products.