First of all, it is necessary for everyone to popularize the knowledge of doors and windows!

Broken Bridge insulation aluminum alloy doors and windows with its high strength, good thermal insulation, good rigidity, good fire resistance, lighting area, corrosion resistance, high overall performance, long life, good decorative effect and other prominent advantages, the more To be more popular in the market. High-end broken aluminum bridge insulation windows and doors, has gradually become the first choice for high-end architectural windows.

Why is it called "broken bridge aluminum insulation"?

"Bridge insulation aluminum" in the name of the "bridge" is the meaning of material science "hot and cold bridge", and "broken" word that action, that is, "the cold and hot bridge interrupted."

Specifically, because the aluminum alloy is a metal, the heat conduction is relatively fast, so when the indoor and outdoor temperature vary a lot, the aluminum alloy can become a "bridge" for transferring heat, and the material is made into a window and window, and its thermal insulating property is not Good. The broken aluminum is the aluminum alloy from the middle disconnect, it uses the insulation strip will be disconnected aluminum alloy as a whole, so that the heat is not easy to pass through the entire material, the material will be better insulation properties, This is the "broken bridge insulation aluminum" name of the origin.

Broken bridge insulation aluminum material properties

(1) Broken Bridge Aluminum alloy windows and doors belong to the higher grade aluminum alloy doors and windows, it is the fifth generation of new energy-saving insulation windows and doors after wooden windows, iron windows, steel doors and windows and ordinary color aluminum alloy doors and windows. Its surface can be painted in a wide variety of colors.

(2) Broken Bridge The composition of color aluminum alloy doors and windows is a combination of the environmental protection of wooden windows, the solid security of bar windows and steel windows, and the commonality of thermal insulation and energy saving of plastic windows and doors. Its structure than ordinary aluminum doors and windows complex, higher cost, ordinary color aluminum does not have insulation, insulation is not energy-saving, but do spray painting on the surface.

(3) Profile aluminum alloy doors and windows section wall thickness strictly follow the national standards. Wall thickness requirements must be between 1.4 and 2.0 mm, because the wall thickness concerns the assembly technology and the security issues that make up the doors and windows. Ordinary color aluminum doors and windows wall thickness to 1.4mm in general.

(4) Broken Bridge color aluminum doors and windows is the use of more than 3mm angle angle for the group, the group corner to be injected into the group of glue to seal. Ordinary doors and windows are only by pulling rivets or screws connected, the solid security is poor, but the cost is low. The assembled color broken aluminum doors and windows adult standing on the move will not be a problem. Complete sets of equipment assembled and assembled with the manual on-site technical requirements are far cry from. Broken bridge aluminum and ordinary aluminum profile is not the same grade, is not comparable.

Profile wall thickness, the quality of the insulation determines the final quality of broken aluminum doors and windows, building materials market, seemingly the same broken aluminum doors and windows, the price difference of up to nearly hundred dollars, the same material under the price really can be so much ? The price gap is here.

A, profile wall thickness: generally do home improvement products, most of the doors and windows factory selection of products with high wall thickness of the product is thinner to reduce the cost of 1.3 thick below the national standard. National standard: profile thickness should be greater than or equal to 1.4mm.

b, insulation: insulation bar to make the most crucial part of the bridge aluminum profile, you must use PA66 nylon, which is the national standard, but the current decoration market, many manufacturers use cheap PVC plastic insulation, which will be serious Affect the product life and safety.

Here are five ways for you to identify true and false broken aluminum doors and windows.

First, "perpetrating a fraud":

Low cost non-structural materials common plastic --- Polyvinyl chloride (PVC) insulation (hereinafter referred to as PVC insulation) to replace Europe's generally accepted for decades for glass fiber reinforced polyamide nylon (PA66) Hot strip (hereinafter referred to as nylon 66 insulation strip).

Because of the difference between the linear expansion coefficient of PVC (8.3 * 10-5K-1) and the linear expansion coefficient of aluminum alloy (2.35 * 10-5K-1) and its low strength (only about 30N / mm2) Poor performance (80 ℃), poor aging resistance and many other defects lead to the use of PVC insulation strip through the composite aluminum bridge after the broken made of insulating windows and doors in the actual installation after use as a result of thermal expansion and contraction will cause PVC Insulation in the broken aluminum bridge appear loose, or even completely from, ranging from the form loose, deformation, thus undermining the doors and windows of the air tightness and watertight, weight is the main cause the form as a whole loose, detached.

Second, "deceiving the sea":

At present, there are many examples of aluminum doors and windows broken bridge with different thickness of the enterprise, especially the lower than 1.4mm wall thickness of the aluminum used as insulating broken aluminum bridge use. This "concealment of the sea" has a very strong concealment, broken bridge aluminum doors and windows project owners only in the profile before processing can be identified.

Third, "fish in troubled waters":

The usual doors and windows project to go through a rigorous state-related performance testing agencies to conduct relevant performance testing, and the resulting test report as the performance test report of its finished doors and windows show people. However, the testing data of the raw materials can only represent the material properties, and the properties of finished products produced after experiencing processing technologies such as hot extrusion and cooling greatly change.

Fourth, "opportunistic":

Some broken bridge aluminum doors and windows enterprises in the full study and grasp the PVC insulation strips, domestic nylon insulation and imported nylon 66 insulation between these three large differences in performance after taking both the economic and relative insurance compromise Program: Window frame aluminum profiles with low quality and cheap PVC or domestic nylon insulation, sash aluminum profile with high quality imported nylon 66 insulation. They think: window frame aluminum is fixed on the wall, even if the quality of the risk will not be a big problem, and sash aluminum profile is active and alone bearing the force, it can not and not afraid of quality problems . Responsible for product quality, quality of life is responsible for the occupational attitude of the tree enterprises to establish people's principles, or even if the relevant standards are also in vain, the development of standards is to check the quality of the product, without a sense of quality will become a fiction.

Five is "indiscriminate charge"

Profile the surface of the difference between electrostatic spraying and electrophoretic painting, the former for the physical changes, the latter for the chemical changes. "Electrophoresis process" was founded in the nineteen sixties, by Ford Motor Company first applied to automotive primer. Because of its excellent non-fading, anti-corrosion features, soon to be widely used in the military industry. In recent years, applied to the surface treatment of windows and doors. Because of its excellent quality and high degree of environmental protection, is gradually replacing the traditional paint spraying. Electrophoresis is the electrophoretic coating in the yin and yang poles, applied to the voltage, the charge of the coating ions move to the cathode and the cathode surface of the alkaline role of the formation of insoluble material, the paint deposited on the aluminum surface.

Windows and doors consumption has always been known as tricky, by more items, all kinds of hype overcharged items, Xiaobian break apart broken, the door and window that something for everyone to say clearly, then, we will restore several Typical cases, but also calculate the popularization of knowledge about doors and windows, to teach you not to be replaced by new windows and doors after all profiteers deceived!

01 Case 1:

Merchants in the unmeasured quotes, and after the final actual measured quotes, a huge difference, sometimes even more than doubled.

For example: measuring deposit, such as workers to their homes to measure the door and window area, tend to increase the amount of area loss by a certain amount to raise the price to kill the owners a surprise.

Door and window installation process, such as demolition of the old window workers directly take away do not give money, the seal also need to pay an additional fee, L-shaped window size calculated by the mouth and does not reduce the inflection point to strengthen the column size area and so on.

Corresponding approach: carefully read the following where the chief secret door and window terminology, windows and doors tricky ranking first: beams, columns, corner columns, frame protection, such increase is the easiest to contract the amount of the project line, So when you understand the business price, the price must be clearly asked, each square contains quotations are included, which is the need for separate charges, fees, etc., it is best to allow businesses to write some quotations on the square meters offer All the details included.

02 Case two:

Less than half a year with windows and doors, the middle of the hollow glass window into the air, resulting in fog in the middle of the window, affecting the use and appearance!

Corresponding approach: doors and windows installed, the owners need to personally check the window seal is firmly, or in case of the above problems, only to re-replace the glass, the owners of life have some impact

03 Case Three:

Remove the old window workers directly take away

If the business owners in the installation of steel doors and windows to help owners demolish the old doors and windows is to perform its "free" demolition duties, then it would be justified to take away sheep, after all, belong to the property owners belong. The fact is that this is also a manifestation of unscrupulous merchants (sometimes the professional quality of workers represents the quality of the brand). If the owners favor the workers and take the initiative to let the workers take away the past, What happened? . .

The solution: to ask for the demolition of the old window in advance is free, whether the recovery of the old windows, their own home thing, why not sell some money, can not let your business to make your home new window money, but also easily earn your old windows of money