doors and windows broken bridge aluminum doors and windows yes; Because the comprehensive effect of this material in heat insulation, environmental protection, noise prevention and other aspects is very good, it is favored by many customers. But on the market broken bridge aluminum doors and windows the price is very chaotic. As the saying goes, you will suffer a big loss if you are greedy for small profits. Let's take an inventory today. Broken bridge aluminum doors and windows all kinds of routines behind.
1. Broken Bridge aluminum windows are the most unpredictable among large hard-mounted items. The reasons are as follows:
1. The price is expensive, just do it casually, it will cost tens of thousands.
2. If there are many additional items, more than 1,000 can be typed with glue.
3. The brands are mixed, and there are too many small workshops in small factories, so you can't rest assured even if you spend money.
4. The quality is uneven, all kinds of recycled aluminum, inferior aluminum is full of market
5. At present, there is no window brand with absolute market discourse right. Choosing a window is not just a brand. Generally, window brand merchants mainly focus on profiles, others such as glass, accessories, hardware, measurement, processing, installation will ultimately determine the effect.
6. The angle codes of regular door and window manufacturers are all made of aluminum profiles with a wall thickness of not less than 3mm. Swarthy merchants replace the aluminum profiles with plastic ones. The appearance is hard to see, and only a little can be seen from the gap.
2: broken bridge aluminum doors and windows the five worst places:
1. Use plastic instead of PA66 for barrier. The plastic is crisp and not resistant to aging. Merchants will also make a fuss about the heat insulation strip. Some use ordinary PVC heat insulation strip, and some use nylon PA66 heat insulation strip. Normally, PA66 nylon strip should be used, which is resistant to high temperature and not afraid of expansion. PA66 nylon strips can be broken by hand, and PVC insulation strips may not be broken even if they have to be repeated for more than ten times.
2. The thickness of the profile is insufficient. All the aluminum mines are fused into pure aluminum ingots first, aluminum ingot and then melted. Other metals are added to make aluminum alloy billet. Then, the profile is pulled into various profiles by a profile machine, and then the profile is processed into window frames. Note that Miscellaneous brands may be recycled by aluminum waste to aluminum rod. Large brands of broken bridge aluminum profiles are in line with national standards. Only some miscellaneous brands, small brands and fake German brands are not up to standard, its wall thickness is only 1.2MM.
3. There are also bad sealing strips. The main function is to wear sealing strips on the layering and inner fan to make the glass and frame closer, thus ensuring the air tightness of doors and windows, if the sealing strip is not good, broken bridge aluminum windows will leak. The sealing strip is very important! The sealing strip has EPDM and Elastomer rubber strip. It is recommended to choose elastomer rubber strip, which is an environment-friendly rubber strip and can be recycled and not pollute the environment at the same time.
4. There are also many hardware pits: when buying Windows, merchants should pack hardware and ask whether the hardware is domestic or imported. Good hardware can ensure smooth opening and closing windows for decades. No matter how good the window is, if the hardware is not good, it will also affect the sealing, heat insulation and heat preservation performance. Generally, if the hardware is included in the unit price or free delivery, it is better not to be cheap, because such things are often not good hardware, if you want to choose hardware, you can choose the brand.
5. The window area is mostly calculated as loss. Some merchants offer cheap prices in the store, but in fact, when the door is measured, the cost is increased, and some even charge additional items during installation, in addition, 20% of the measured area is added as the loss. Be sure to sign a contract, stating the price, no additional items, etc.
3: How can I buy broken bridge aluminum windows without being cheated?
1. Glass sealant is very important
the insulating glass used to seal the balcony has strong sealing performance, which can be distinguished by the sealant. The glass shown in the following figure is wrapped around butyl rubber, which is very tight. In addition, good sealant is played evenly. If it looks like "dog gnawing", you can pass it directly.
2. Glass thickness fraud
the thickness of the glass is also one of the price factors. Some merchants cut corners. It is obviously 5+12+5 glass, but use 4.3mm glass instead of 5mm glass, the cost difference of this piece alone is 50 yuan/square meter.
3. Hardware is very cheap. I suggest you not to buy it
making a set of broken bridge aluminum requires a lot of hardware accessories, especially opening windows, with handles and two paddles. Many people are thinking about the price of pressing hardware accessories. Although hardware is not impressive, but it is used every day. You can only buy cheap goods when saving money. The life span of inferior hardware accessories is usually only 2-3 years. If you want to use it for 10 years, you still need to buy famous accessories of big brands. The money of hardware cannot be left.
4. The quality of sealing strip is good or bad
it is also a sealing strip. It seems that there is no difference, but the price varies greatly. Select the sealing strip, not too soft, easy to break, good sealing strip has toughness, will not absorb water.
5. Choose good foaming agent
window leakage does not leak, which has a lot to do with construction technology and filling materials. The inferior foaming agent used in some windows may not leak in those years. If the foaming agent ages and cracks for a long time, it will cause water leakage. Good foaming agent will not sag when pressed, and it cannot be broken off. The cost difference of foaming agent will be about 20 yuan/square meter.
Finally, in view of the quality of some non-well-known brands in the market, the cost performance is higher than that of big brands. It is suggested that owners should clearly define their own positioning before purchasing, and choose quality or cost performance? According to the above analysis, to buy broken bridge aluminum, you must not blindly follow the merchant's recommend, so it is not easy to suffer losses.
