There are many broken bridge aluminum brands in the market, among so many brands. How can Jian Mei broken bridge aluminum distinguish between true and false? The following sections are described as follows:
1. Jianmei broken bridge aluminum has the word "Jianmei" on the material, which is carved on it. There is no way to wipe it off by ordinary wiping. Jianmei broken bridge aluminum has lettering on the surface of aluminum, which can be seen by every consumer. As shown in the following figure:
2. Look at the heat insulation strip
Insulation strip is the core of broken bridge aluminum doors and windows. Whether a door and window is insulated or not has a very important relationship with insulation strip. At present, many domestic broken bridge aluminum doors and windows use PA66GF insulation strip imported from abroad, this kind of heat insulation strip is the only standard for testing heat insulation profiles in Europe, America and other countries.
This kind of heat insulation strip generally presents a kind of black luster, and the heat insulation strip is marked with the merchant's product specifications, production batch number and laser code every 60cm or so, the most important thing is that the surface of these insulation strips is very smooth and smooth. There are no compressed holes and there will be no loose conditions. If you look under the light, there will also be some mineral-specific luster on the surface, which are the unique characteristics of imported heat insulation strips.
3. Look at the color
When purchasing, carefully observe the broken bridge aluminum doors and windows surface profiles. If it is a uniform profile, the color of the door and window surface should be the same, if there are spots or trachoma on the surface of the profile, we should pay attention to it at this time, then this kind of broken bridge aluminum doors and windows is definitely unqualified. Generally speaking, the real broken bridge aluminum doors and windows manufacturers will not have this kind of situation, in that case, it can only be said that the technology of counterfeit manufacturers is not enough.
4. Look at the sealing strip
Some people will say that the sealing strips are not the same? How to see it? In fact, there is a certain difference between the real broken bridge aluminum doors and windows sealing strip and the fake sealing strip. The real sealing strip is made of ethylene-propylene diene copolymer, which is a good distinction, there is a sealing strip in the closed place of doors and windows. You only need to carefully distinguish whether it is a real sealing strip.
5. Listen to the sound
When buying doors and windows, everyone must be accustomed to knocking on the walls of doors and windows, but they often do not pay attention to these echoes. In fact, these echoes are also a basis for judgment, if the real broken bridge aluminum doors and windows echo is particularly small, the sound is particularly stuffy. If it is a fake broken bridge aluminum doors and windows, that is, ordinary aluminum alloy doors and windows, the Echo is particularly large, because the structure of the Broken Bridge aluminum doors and windows Wall adopts a ladder with distinct layers and a layer of anacoustic material inside, the random sound is particularly small, but if it is fake, the sound is not like that, in this way, it is easy for everyone to distinguish clearly.
6. Look at the accessories
When buying doors and windows, there must be hardware accessories. Generally speaking, ordinary door and window accessories are very single, and the most important thing is that the door and window accessories look different in color, because this kind of accessories use aluminum profiles of the second grade, the five parts of broken bridge aluminum doors and windows look bright and smooth, and the hardware of this kind of material uses excellent aluminum profiles, it is better in appearance and quality.
7. Look at the corner of the door and window
Generally speaking, many people will not pay attention to this part, but this part is also a place that is easy to distinguish. The corner of fake broken bridge aluminum doors and windows doors and windows is not handled properly, that is to say, there will be some residue in the corners of doors and windows, which looks particularly unsmooth. This is caused by the poor handling technology of fake manufacturers, however, the real broken bridge aluminum doors and windows is very well handled regardless of any part, because regular manufacturers cannot compare with each other technically, and large manufacturers pay more attention to the appearance treatment of doors and windows.
8. Due to the large amount of impurities in aluminum, the extruded Bridge-cutoff aluminum alloy profiles generally have many marks.
9. Due to the backward spraying technology, the surface of counterfeit products is generally rough, while the surface of genuine products is glossy without ripples.
10. Use your nose to smell whether there is peculiar smell. Normal PVC material will have a little mellow smell of my son, which is almost very small.
11. Wrap the sealing strip around the profile as tightly as possible and place it under high temperature for a period of time (on the roof or in a sunny place). Check whether the contact surface between the profile surface and the sealing strip is stained and discolored, whether the dust on the surface of the sealing strip is yellow (it is easy to absorb soil with oil), and whether it is dirty with hands.
12. There will be a lot of filler for some sealing strips with relatively low price, so the surface will not be very bright, and those with very cheap appearance and bright appearance are not desirable.
13. Look at the proportion, how many meters can be delivered per kilogram.
