Now that people's quality of life is constantly improving, we have clear requirements for the quality and performance of houses. The energy-saving performance, safety performance, sound insulation and noise reduction, sun protection, comfort and durability of building doors and windows have received increasing attention from consumers. Doors and windows came into being, what is the definition of system doors and windows? Where is the system door and window expensive?
01. Definition of system doors and windowsThe definitions of system doors and windows and door and window systems given in the "Guidelines for Building System Doors and Windows Technology" hosted by the Ministry of Housing and Construction and edited by the China Building Metal Structure Association are:
A collection of technologies developed to form high-quality and high-performance door and window products, including product design, production, installation, and post-maintenance. Among them, the product design is the design of door and window materials and structures. System doors and windows are doors and windows made according to the technology provided by the door and window system, which are physical doors and windows.
02 Advantages of system doors and windowsSystem doors and windows are an organic combination of performance systems. The industry compares the difference between system doors and windows and ordinary doors and windows as "brand computers" and "assembled computers".
System Doors and Windows Company is different from ordinary door and window manufacturers. Starting from the entire door and window industry chain, System Doors and Windows Company integrates all the technology, materials and equipment of doors and windows, and provides a series of system solutions to downstream door and window processing enterprises, and guarantees the quality of the entire window.
System doors and windows are not the same as simple high-performance windows. It is an organic combination of performance systems. The organic combination represents the mature and reliable design and development of the system, low energy consumption, low repair rate, and low operating cost during its service life.
At the same time, it has a strong after-sales network and a professional after-sales team to strengthen the brand advantages of system doors and windows.
Today's Mytos Door and Window Hardware Editor mainly analyzes the factors that affect the price of system doors and windows from the following aspects:
The main factors affecting the price of aluminum doors and windows are: profiles, glass, and hardware (referred to as "three major materials")
1.Profile analysis 1.1 Better choice of alloy grade
It is understood that the aluminum alloy grade used for doors and windows of foreign systems is 6060-T66. Compared with 6063 alloy, the alloy strength is about 40% higher in tensile strength and yield strength. In other words, 6060 has higher strength. Can withstand higher external loads.
A little friend will ask the difference between T6 and T66?
T6 and T66 indicate the processing state of the alloy, T6 refers to the state of artificial aging after solution heat treatment, and T66 refers to the state strengthened by a special process based on the T6 state.
6060-T66 has more products for medical devices, stable performance and less deformation.
In general, the comprehensive mechanical properties of 6060-T66 are much better than those of 6063-T5. Of course, the price must be relatively high.
Aluminum is used as the framework of doors and windows. Its unique grades and processing methods bring higher strength, while also ensuring the stability and life of doors and windows.
1.2 Surface treatment method
At present, there are four common surface treatment methods for aluminum profiles: powder spraying, fluorocarbon spraying, anodizing and electrophoresis. The coating thickness of system door and window profiles is 30% higher than that of ordinary doors and windows. The small cost increase here can make the surface of system doors and windows more beautiful and have a longer life.
1.3 Dimension tolerance requirements
The splicing requirements of the door and window profiles of the system are higher than that of ordinary doors and windows, which requires that the profile manufacturers must reach the national standard ultra-high precision when producing profiles. This has high requirements on extrusion equipment, molds, and subsequent maintenance. These are invisible costs.
1.4 Corner Group Corner Craft
The doors and windows of the system will be injected with two-component corner glue when the corners are assembled, and the end joints will be coated with end glue to better improve the strength of the profile connection. Ao Ying system is equipped with custom cast aluminum support plate as standard at all corner connections to further increase the connection strength.
2.Glass analysis Glass plays a considerable role in energy saving. For example, the K value of the whole window is largely determined by the K value of the glass. Whether it is a closed system window or a non-closed system window, the glass of domestic glass manufacturers can meet the requirements, which is a small difference from ordinary windows. Of course, the performance requirements of system doors and windows are much higher than ordinary doors and windows, which also determines the type of glass (double glass, triple glass or multi-glass; whether it is Low-E glass; warm edge partitions, etc.)
3. Hardware analysis Hardware accessories are the components that tightly connect the window frame and the fan. It is no exaggeration to say that the stability of the hardware system determines the performance of the system window. As an important part of the system window, hardware accessories account for more than 20% of the cost of the system window.
For closed system doors and windows manufacturers, their hardware accessories are designed and developed by themselves, and they are matched with them, so the closed system door and window manufacturers are selected, and the supporting hardware accessories are also determined; for semi-closed system doors and windows, their hardware accessories are selected Generally speaking, most domestic system window manufacturers cooperate with international first-tier brand hardware accessories suppliers to meet the overall quality requirements of system windows.
3.1 Import and domestic
Under the same opening method, the price of hardware of international brands is at least twice as expensive as that of domestic brands. For example, a domestic set of domestically opened and inverted pieces is about 150 yuan, and international brands G-U and Roto are at least 300 yuan. With the development of technology, there are many types of hardware accessories, and the cost ranges from a few tens of yuans to a set of thousands of yuans, and the cost is very discrete.
3.2 The weight of the sash determines the choice of hardware system
Under normal circumstances, the maximum bearing capacity of the hinge is 80kg, 130kg, 160kg, 200kg. For every sash weight that exceeds one level, such as 80kg to 130kg, the cost of its hardware accessories increases by about 100 yuan.
3.3 Window lock point setting
Generally, the opening fan is two lock points, but in order to ensure the security and anti-theft function and air tightness requirements, the number of lock points needs to be increased. The cost of each additional set of lock points increases by about 10 yuan to 30 yuan.
3.4 Other auxiliary functions
For example, ventilators, child locks, micro-ventilated half-open accessories, and anti-fall hardware accessories all have an impact on costs.
Doors and windows have always been the presence of high participation and low attention in daily life. The one-time purchase cost of system doors and windows is relatively high, but it can provide the best performance and comfort during use. High energy saving and maintenance guarantee in the later period are also valued by people. Whether the system doors and windows are really "expensive", I hope everyone has got the best answer.
