Public Notice of the First Batch of Shortlisted Bidders for the Technical Project

Public Notice of Shortlisted Bidders for the Second Batch of Technical Projects

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Smart + Doors and Windows: The smart capabilities it enables spark endless imagination.

As people’s living environments upgrade, they are placing increasing emphasis on personal safety and property security, raising higher standards for the safety of individuals, families, and residential communities. At the same time, rapid economic development has led to a sharp rise in urban migrant populations, presenting new challenges to public order and social stability in cities. To ensure community safety and prevent theft and robbery, it is essential to have a robust security system in place. The widespread adoption of smart homes has gradually made intelligent home decoration a standard feature of modern interior design—especially in first-tier cities, where the trend toward IoT integration is accelerating and expanding. As part of comprehensive, turnkey home solutions, doors and windows are playing an increasingly important role in the evolution of smart home technology. Serving as the primary interface between the home and the outside world, doors and windows offer countless opportunities for innovation. In the future, smart doors and windows will not only enable remote control but also act as vigilant guardians of the indoor environment; moreover, a single door or window could improve indoor air quality, enhance energy efficiency, and deliver many other benefits. Looking at the development of China’s smart door and window industry By contrast, the domestic door and window sector appears to be taking a rather cautious, even sluggish, approach to smart door and window development, largely failing to respond to emerging market trends. Yet the wolf is already at the doorstep. Fortunately, a small number of forward-thinking door and window industry players have recognized this crisis and are gradually upgrading their offerings to include smart products, aiming to get ahead in the next round of competition and proactively shape future trends. When traditional door and window manufacturers look at windows from inside the home, they focus on the product itself—the window as a standalone item. This narrow perspective has constrained their growth, preventing the industry from making any truly breakthrough advances over the past several decades, despite its status as a basic necessity. In contrast, smart home professionals tend to view windows from outside the home, concentrating on the convenience and lifestyle improvements that smart technology can bring to households—a broader, whole-home smart-home mindset. For some, “smart” evokes fear; for others, it represents the future and emerging trends. These contrasting worldviews give rise to fundamentally different ways of thinking and seeing. Smart + Doors and Windows: Endless Possibilities The door and window industry has a history spanning more than a millennium, with metal doors and windows boasting nearly a century of development. While this long heritage has provided the industry with a wealth of accumulated knowledge, it has also imposed significant constraints. In such a deeply traditional sector, consumers’ perceptions of door and window products have become rigidly fixed. In recent years, buoyed by China’s booming real estate market, the industry experienced rapid growth, during which many underlying problems and shortcomings were masked by the overheated market conditions. However, as the economy has slowed and costs have risen over the past couple of years, the industry’s momentum has begun to wane, forcing many companies to rethink their business models. Meanwhile, the smart home concept is thriving, attracting massive investment and becoming a hotbed for innovation. What kind of sparks will fly when smart technology meets doors and windows? The possibilities are virtually limitless, sparking endless imagination in the market. For traditional door and window professionals, smart doors and windows are still just doors and windows—they remain firmly within the realm of physical products. The weight of history has shackled their imagination, leaving many manufacturers, though acknowledging the potential of smart doors and windows and striving to transition toward smarter solutions, stuck in conventional R&D approaches. They struggle to break free from their established product-development mindset and continue to focus on traditional door and window designs, treating smart doors and windows more as a buzzword or marketing gimmick. As a result, most door and window distributors view smart products as distant and irrelevant, casting serious doubt on their practical value. Realizable Smart Features Drive Consumer Growth For the smart home industry, doors and windows represent a fresh, highly imaginative platform with tremendous potential. From appliances to furniture, the smart home movement has spread with astonishing speed—almost overnight, people find themselves surrounded by an array of smart devices. Although the smart door and window segment is only just beginning to take off, these products already serve as exceptional service platforms and key entry points for IoT applications. Doors and windows are low-frequency purchase items, yet they are used frequently throughout the day. People may only buy doors and windows once in their lifetime—when they renovate their homes—but they use them every single day. Doors and windows are inextricably linked to everyday life. In the context of the smart home, doors and windows can function as eyes, limbs, and even the brain. The range of possible applications is vast; smart + doors and windows opens up boundless creative possibilities. For example, users could transform large floor-to-ceiling windows into interactive screens for movie viewing, or integrate windows with drone delivery systems to facilitate package pickup. For the smart home, door and window products are merely carriers; the real value lies in the smart capabilities they enable—capabilities that hold immense potential for driving consumer demand and shaping future growth. At its core, a smart door or window remains a door or window, while simultaneously serving as an essential gateway for smart home decoration. When doors and windows meet smart technology, when cutting-edge innovation collides with traditional craftsmanship, a completely new user experience emerges. The question now is: Will traditional door and window professionals take the initiative and embrace change, or will smart home innovators cross over and carve out new market share? It remains unclear who will ultimately dominate the market, but one thing is certain: the future belongs to those who think boldly, dare to innovate and experiment, and actively embrace change.

Production Process of Aluminum Alloy Door and Window Profiles

The production process for door and window profiles primarily involves extruding aluminum alloy to manufacture various components used in doors and windows. When discussing the manufacturing process for aluminum alloy door and window profiles, one might wonder whether it is similar to that of other aluminum extrusions. Indeed, it is broadly similar; however, certain differences do exist. Aluminum alloy profiles are renowned for their environmental friendliness, dimensional stability, ease of fabrication, and aesthetic appeal, which is why they are widely employed in door and window applications. The fabrication process typically comprises melting and casting, extrusion, heat treatment, and surface finishing, ultimately yielding the finished door and window profiles that we see today. To ensure a smooth ingot surface, magnetic casting or top-pour casting methods are utilized, along with multi-die casting. These techniques help increase extrusion speed, extend die life, and improve the surface quality of the extruded profiles. The extrusion of aluminum alloy door and window profiles is carried out on an automated production line that includes ingot heating, extrusion, cooling, tension straightening, and sawing. Flat dies and split-flow combination dies are commonly used for producing these profiles. A discharge table receives the extruded profiles from the extruder and transfers them to the downstream handling station. The aluminum alloy used for door and window profiles belongs to the Al-Mg-Si series, which is a heat-treatable alloy. By employing different quenching and aging regimes, the profiles can achieve the desired mechanical properties. Surface treatment of aluminum alloy door and window profiles generally involves anodizing. This process not only enhances the visual appeal of the profile’s exterior but also extends its service life.

Main Factors Causing Non-Uniform Oxide Film Color in Door and Window Profiles

During the coloring process for window and door profiles, excessive swinging within the plating tank can lead to uneven contact between the solution and the profile—particularly between the edges and the center—resulting in inconsistent coloration of the oxide film on the surface. Additionally, during the fabrication of aluminum-clad window and door profiles, localized damage to the cladding layer can occur; since the outer cladding is high-grade aluminum while the underlying core is mixed-grade aluminum, the significant difference in material properties accelerates oxidation, causing mottling on the profile surface. Such defects are often difficult for customers to understand or accept, so it is essential to clearly explain the root causes beforehand. Furthermore, operational issues in the anodizing process—such as incomplete alkaline etching, residual alkalinity on the profile surface, or failure to perform post-etch polishing—can also give rise to similar problems. To address these challenges, we must identify the underlying causes and implement targeted corrective measures. For instance, by controlling the amplitude of profile movement within the plating tank, we can effectively prevent uneven coloration of the surface oxide film.

Production process of aluminum alloy door and window profiles

The production process of door and window profiles is mainly the doors and windows made of aluminum alloy extruded various door and window profiles. So when it comes to the production process of aluminum alloy door and window profiles, is it similar to the processing technology of other aluminum profiles? Yes, they are similar, but there are still some differences.

Intelligence + doors and windows Realizable intelligence brings endless reveries

With the upgrading of people’s living environment, people pay more and more attention to their own personal safety and property safety, and put forward higher requirements for the safety of people, families and residential communities; at the same time, the rapid economic development is accompanied by urban floating population. The rapid increase in social security in the city has added new problems to the social security of the city. To ensure the safety of the community and prevent the occurrence of stealing incidents, it is necessary to have its own security system.   The popularity of smart homes has gradually made smart decoration a standard feature in home decoration. Especially in first-tier cities, the trend of popularization of the Internet of Things is further accelerating and expanding. As part of the package output, doors and windows have begun to play an increasingly important role in the development of smart homes. As the largest interactive window between the home and the external environment, doors and windows can be extended too much. In the future, smart doors and windows can not only be controlled remotely, but can also act as guards for indoor homes. It is more likely to improve the indoor air environment and energy efficiency through a single door and window.   Overview of the development of domestic smart door and window industry   Looking back at the domestic door and window industry, the development of smart doors and windows seems to be in an unhurried state, and the market changes that have taken place are obviously in a state of lack. As everyone knows, the wolf is already in front of the house. Of course, it is gratifying that a few broad-sighted door and window industry operators have realized this crisis and gradually upgraded smart doors and windows, hoping to make arrangements in advance in the new round of competition, and take the initiative to grasp the future trend.   Standing indoors looking at the windows, looking at the products, focusing on the windows themselves. This is the common thinking of traditional door and window operators. This kind of thinking limits its development and prevents the development of the window industry in recent decades without breakthrough progress. And smart home practitioners are more like looking out the window, focusing on the convenience that intelligence can bring to the family and the changes brought about by life, and it is the smart thinking of the whole house with a broader vision. An "intelligence" allows some people to see fear, but allows others to see the future and trends. The values ​​of the two worlds bring two completely different thinking and visions.   Smart + doors and windows, bringing endless reveries   The door and window industry has been developed for thousands of years. Even metal doors and windows have a history of nearly a hundred years. The long history has given the door and window industry a rich accumulation, but also caused a heavy burden. In such an industry that is so traditional that it can no longer be traditional, people's cognition of door and window products has formed a solid concept. In the past few years, with the boom of China's property market, the door and window industry has been in a process of rapid growth, and many contradictions and deficiencies have been concealed in the hot market atmosphere. With the slowdown of the economy and rising costs in the past two years, the slowdown in the development of the door and window industry has become apparent, and many door and window companies are facing transformation. On the other hand, the concept of smart home is in full swing, becoming the outlet for capital pursuit. What kind of sparks will smart + doors and windows collide with? This gives the market endless room for imagination.   For traditional door and window practitioners, smart doors and windows are still doors and windows, and they are still not out of the scope of products. The heaviness of history has confined the wings of people’s imagination, leading many door and window manufacturers, although they recognize the concept of smart doors and windows, and are also striving to transform to smart doors and windows, but they have been insufficiently innovative and have no way to break through the original product research and development thinking. They still stay in the tradition. The research and development of doors and windows. Think of smart doors and windows as a concept, a gimmick. As a result, door and window dealers generally believe that smart doors and windows are far away from themselves, and are full of distrust in the practicability of current smart door and window products.   Achievable intelligence brings consumption growth point   For smart homes, doors and windows are a new carrier full of imagination. From home appliances to furniture, etc., the raging fire of smart homes is spreading extremely rapidly. Almost overnight, you can find yourself surrounde