Wide thin-wall aluminum alloy decorative profile for curtain wall
Patent Information
- Application Number
- CN202522338344.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-04
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-11-04
AI Technical Summary
[0004]（一）解决的技术问题：针对现有技术的不足，本实用新型提供了一种幕墙用宽幅薄壁铝合金装饰线条，具备安装方便的优点，解决了安装步骤复杂的问题
1、该幕墙用宽幅薄壁铝合金装饰线条，通过采用宽幅向窄幅渐变的整体造型与薄壁设计，在扁挤压筒精密成型的支持下，既大幅减轻了构件自重、降低了铝材消耗，又保持了线条的流畅性与视觉表现力；其次，结构上摒弃了传统焊接框架体系，将承重与装饰功能集成于单根型材，通过连接件与不锈钢钢板直接挂接于幕墙立柱，形成高效的刚性节点，既保证了悬挑根部受力可靠，又使薄壁构造得以实现，真正做到了局部加强、整体减重。此外，该设计极大简化了施工流程：传统制作中框架搭接、铝板固定、分段拼接与现场焊接等多道工序，被标准化、模块化的组件装配所取代，现场仅需进行螺栓机械连接，显著提升了安装效率与工程质量一致性，同时降低了人工成本和工艺复杂度。从材料到构造、从生产到施工，该装饰线条系统在轻量化、功能集成化和装配高效化方面实现了全面突破，为现代幕墙工程提供了一种更经济、更可靠、更符合绿色建造趋势的优质解决方案。
Smart Images
Figure CN224799843U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of decorative molding technology, specifically a wide-width thin-walled aluminum alloy decorative molding for curtain walls. Background Technology
[0002] Curtain wall decorative lines are important decorative components of building facades. Through the shape, material, and color of the lines, they endow buildings with a unique visual language and functionality. Curtain wall decorative lines are linear components installed on the surface or edges of curtain walls. By varying the thickness, curvature, and density of the lines, they enhance the building's sense of layering and three-dimensionality. For example, the Tianjin Zhonghai Sky Mirror project uses silver-gray aluminum panels paired with bronze metal trim, and enlarged treatment at the ends of the lines to create exquisite light and shadow layers. Some lines integrate sun-shading functions (such as horizontal or vertical sunshades), which can reduce indoor energy consumption. At the same time, the lines can serve as a transition between the curtain wall and the main structure, optimizing waterproof and windproof performance. From modern minimalist straight lines to European classical carved lines, different materials and processes can adapt to a variety of architectural styles. For example, Hangzhou Dajia Chuanchen Mansion uses golden aluminum panel lines paired with white stone to convey a warm and pure temperament.
[0003] Existing conventional curtain wall decorative lines typically use aluminum plates or honeycomb aluminum plates. Construction requires the installation of a frame, and the surface layer is made by folding aluminum plates or honeycomb aluminum plates. The construction process is complex, the lines are heavy, and the finished product has low precision. The frame installation requires welding, which poses safety hazards. Conventional aluminum profile decorative lines use a round cast rod extrusion process. When the cantilever width of the decorative line is ≥400mm, traditional aluminum profile manufacturers have the following two solutions: ① If the manufacturer does not have an extrusion press of 7000 tons or more, the decorative line can only be split into 2 or 3 pieces and then spliced and welded; ② If the manufacturer has an extrusion press of 7000 tons or more, the aluminum profile wall thickness must be increased. This results in decorative lines with large cantilever widths, complex construction processes, heavy decorative lines, and high material costs. Utility Model Content
[0004] (I) Technical problem to be solved: In view of the shortcomings of the existing technology, this utility model provides a wide thin-walled aluminum alloy decorative line for curtain walls, which has the advantage of convenient installation and solves the problem of complicated installation steps.
[0005] (II) Technical Solution: To achieve the above-mentioned purpose of convenient installation, this utility model provides the following technical solution: a wide thin-walled aluminum alloy decorative line for curtain walls, including a decorative line body, connectors, curtain wall columns and stainless steel plates. The decorative line body is produced by a flat extrusion cylinder extrusion process. The decorative line body has a shape that gradually narrows from wide to narrow along its length. The wide end of the decorative line body has an interface for fixing. The curtain wall columns are fixed on the wall surface where the curtain wall needs to be installed. The stainless steel plates are connected and fixed to the curtain wall columns by bolts. The stainless steel plates are connected and fixed to the decorative line body by connectors.
[0006] The decorative line body has a connecting groove at its wide end. The connecting groove is in the shape of a slide rail. The connector is L-shaped and has a through groove on one side, so that the connector can be directly pushed into the connecting groove.
[0007] The connector surface is provided with fins, which are located inside the groove opening when the connector is pushed into the connecting groove.
[0008] The connector is manufactured using an integrated FRP process and has an open grid structure composed of crisscrossing ribs inside.
[0009] The decorative line body and the connector are connected by hexagonal bolts, and the stainless steel plate is fixed to the curtain wall column by pan head bolts.
[0010] (III) Beneficial Effects: Compared with the prior art, this utility model provides a wide-width thin-walled aluminum alloy decorative strip for curtain walls, which has the following beneficial effects: 1. This curtain wall utilizes wide, thin-walled aluminum alloy decorative lines. Through a gradual transition from wide to narrow profiles and a thin-walled design, supported by precision forming using flat extrusion cylinders, it significantly reduces component weight and aluminum consumption while maintaining smooth lines and visual appeal. Secondly, structurally, it abandons the traditional welded frame system, integrating load-bearing and decorative functions into a single profile. This profile is directly attached to the curtain wall columns via connectors and stainless steel plates, forming efficient rigid nodes. This ensures reliable stress distribution at the cantilever roots and enables the thin-walled structure, truly achieving localized reinforcement and overall weight reduction. Furthermore, this design greatly simplifies the construction process: the multiple steps of traditional fabrication, such as frame erection, aluminum plate fixing, segmented splicing, and on-site welding, are replaced by standardized, modular component assembly. On-site, only mechanical bolt connections are required, significantly improving installation efficiency and project quality consistency, while reducing labor costs and process complexity. From materials to structure, from production to construction, this decorative molding system has achieved comprehensive breakthroughs in lightweighting, functional integration, and efficient assembly, providing a more economical, reliable, and green building-in lined solution for modern curtain wall engineering.
[0011] 2. This curtain wall uses wide, thin-walled aluminum alloy decorative lines. Through the sliding rail connection groove at the wide end of the decorative lines and the push-in engagement of L-shaped connectors, true dry operation and rapid alignment are achieved. During installation, there is no need for cumbersome positioning and temporary fixing; simply push the connectors along the sliding grooves, and their surface fins will automatically lock them in place, completing the initial precise pre-installation. This significantly reduces operational difficulty and labor time. Furthermore, hexagonal bolts are used for final tightening, ensuring a tight connection and resistance to loosening between the decorative lines and the connectors. Even more noteworthy is that the connectors themselves are made of FRP (fiberglass reinforced plastic) in one piece. Their internal crisscrossing ribbed mesh structure provides the connectors with extremely high strength and rigidity while achieving extreme lightweight, enabling them to effectively transfer the loads on the curtain wall. The inherent corrosion resistance, insulation, and low thermal conductivity of FRP material also fundamentally avoid the electrochemical corrosion and cold bridging problems that are common with traditional metal connectors, improving the durability and energy-saving effect of the curtain wall system. Ultimately, this series of bolts reliably transmits force to the curtain wall columns and the main building structure. The entire connection chain, from the guide rails and FRP components to the bolt fastening, forms an efficient, reliable, and durable mechanical connection system, which is a key link in achieving lightweight, modular, and prefabricated construction of the overall curtain wall system. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the decorative line structure of this utility model; Figure 2 This is a schematic diagram of the connector structure of this utility model; Figure 3 This is a schematic diagram of the installation of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of the installation of this utility model. Figure 2 .
[0013] In the diagram: 1. Decorative molding body; 2. Connector; 3. Curtain wall column; 4. Stainless steel plate; 11. Connecting groove; 21. Fin plate. Detailed Implementation
[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0015] Please see Figures 1-4A wide, thin-walled aluminum alloy decorative strip for curtain walls includes a decorative strip body 1, connectors 2, curtain wall columns 3, and a stainless steel plate 4. The decorative strip body 1 is produced using a flat extrusion cylinder process. The decorative strip body 1 has a shape that gradually narrows from wide to narrow along its length. The wide end of the decorative strip body 1 has an interface for fixing. The curtain wall columns 3 are fixed to the wall surface where the curtain wall needs to be installed. The stainless steel plate 4 is connected and fixed to the curtain wall columns 3 by bolts. The stainless steel plate 4 is connected and fixed to the decorative strip body 1 by connectors 2.
[0016] 6063 aluminum alloy (the mainstream material for decorative lines) is preferred due to its good extrusion performance and easy surface treatment. The diameter of the aluminum rod must match the width of the flat extrusion cylinder. The aluminum rod cutting length is 500-1000mm. It needs to be homogenized by holding at 560℃ for 6-8 hours to eliminate casting stress and ensure a fine and uniform distribution of Mg2Si. A spiral flow-dividing bridge structure (e.g., 9 flow-dividing bridges, 5.5-6.5mm wide) is used to guide the metal to flow at a consistent speed in all directions. The welding chamber depth must be ≥2 times the die hole height to ensure sufficient welding. The pre-formed hole must be completely consistent with the cross-section of the decorative line. The working zone length needs to be differentiated, and the uniformity of metal flow rate is controlled by frictional resistance. The round cast rod is fed into the flat extrusion cylinder. The internal cavity of the flat extrusion cylinder is a wide and thin flat orifice, with its long side being much larger than its short side. The main plunger of the extruder pushes forward with enormous pressure, pushing the cast rod. Under the constraint of the flat extrusion cylinder, the cast rod is forced to change its shape from round to a flat shape consistent with the inner cavity of the extrusion cylinder. Subsequently, it is forced through the die installed at the front end of the extrusion cylinder. The opening of the die is the precise negative shape of the decorative line cross section. The metal flows through the die under high pressure and is continuously shaped into the wide, thin-walled profiles with complex shapes that we want, and then extruded from the die orifice.
[0017] Traditional methods require first building a complex welding frame, and then folding and fixing the aluminum plate onto the frame. This involves two main stages: frame fabrication and panel installation. This structure eliminates the need for a separate frame system. The decorative lines themselves are the main body that combines load-bearing and decoration. They are directly hung on the columns through connector 2 and stainless steel plate 4, merging the two stages into one. Traditional wide profiles are limited by the extrusion machine's capacity and need to be divided into several sections, which are then spliced and welded. The integrated design of this structure fundamentally eliminates these two processes. On-site, only mechanical connection operations of tightening bolts are required. The integrated and modular design of the structure transforms the complex and multi-step on-site fabrication and welding work into simple and standardized on-site assembly work, thereby significantly reducing the number of processes. With the material density remaining unchanged, reducing the wall thickness is the most direct way to reduce weight. Compared with the traditional thickened profiles to ensure rigidity, the thin-walled design of this structure directly reduces the amount of material used and the weight. As a cantilever component, the decorative lines bear the maximum bending moment at their root. This structure does not attempt to make the entire line very thick to resist the bending moment, but instead uses the rigid nodes formed by connector 2 and stainless steel plate 4 to bear and transfer the load. This node provides strong bending and shear resistance, allowing the line body to be made thinner and lighter with confidence. This is a typical design concept of local reinforcement and overall weight reduction. The flat extrusion process realizes the possibility of thin walls, while the efficient rigid node design ensures the feasibility of thin-walled structures under stress. The combination of the two achieves lightweighting.
[0018] The decorative line body 1 has a connecting groove 11 at its wide end. The connecting groove 11 is in the shape of a slide rail. The connector 2 is L-shaped and has a through groove 21 on one side, so that the connector 2 can be directly pushed into the connecting groove 11. The surface of the connector 2 is provided with a fin plate 22. When the connector 2 is pushed into the connecting groove 11, the fin plate 22 is located inside the groove opening of the connecting groove 11, so that it can be quickly positioned. The connector 2 is processed by FRP integrated process and has an open grid structure composed of crisscrossing ribs inside.
[0019] The decorative line body 1 and the connector 2 are connected by hexagonal bolts, and the stainless steel plate 4 is fixed to the curtain wall column 3 by pan head bolts.
[0020] Working Principle: 6063 aluminum alloy (the mainstream material for decorative moldings) is used, offering good extrusion performance and easy surface treatment. The diameter of the aluminum rod must match the width of the flat extrusion cylinder. The aluminum rod is cut to a length of 500-1000mm and requires homogenization treatment at 560℃ for 6-8 hours to eliminate casting stress and ensure a fine and uniform distribution of Mg2Si. A spiral flow divider structure (e.g., 9 flow dividers, 5.5-6.5mm wide) guides the metal to flow at a consistent speed in all directions. The welding chamber depth must be ≥2 times the die hole height to ensure sufficient welding. The pre-formed hole must be completely consistent with the cross-section of the decorative molding. The working zone length requires differentiated design, and the uniformity of metal flow rate is controlled by frictional resistance. The heated round cast rod is fed into the flat extrusion cylinder. The internal cavity is a wide and thin flat orifice, with the long side of the cross-section being much larger than the short side. The main plunger of the extruder pushes forward with enormous pressure, pushing the casting rod. Under the constraint of the flat extrusion cylinder, the casting rod is forced to change shape, from a circle to a flat shape consistent with the inner cavity of the extrusion cylinder. Subsequently, it is forced through the die installed at the front end of the extrusion cylinder. The opening of the die is the precise negative shape of the decorative line cross-section. The metal flows through the die under high pressure and is continuously shaped into the wide, thin-walled profiles with complex shapes that we want, and then extruded from the die orifice. Traditional solutions require first building a complex welded frame and then folding and fixing the aluminum plate onto the frame. This involves two main stages: frame fabrication and panel installation. This structure eliminates the need for a separate frame system. The decorative lines themselves are the main body that combines load-bearing and decoration. They are directly hung on the columns through connector 2 and stainless steel plate 4, merging the two stages into one. Traditional wide profiles are limited by the extrusion machine's capacity and need to be divided into several sections, which are then spliced and welded. The integrated design of this structure fundamentally eliminates these two processes. On-site, only mechanical connection operations of tightening bolts are required. The integrated and modular design of the structure transforms the complex and multi-step on-site fabrication and welding work into simple and standardized on-site assembly work, thereby significantly reducing the number of processes. With the material density remaining unchanged, reducing the wall thickness is the most direct way to reduce weight. Compared with the traditional thickened profiles to ensure rigidity, the thin-walled design of this structure directly reduces the amount of material used and the weight. As a cantilever component, the decorative lines bear the maximum bending moment at their root. This structure does not attempt to make the entire line very thick to resist the bending moment, but instead uses the rigid nodes formed by connector 2 and stainless steel plate 4 to bear and transfer the load. This node provides strong bending and shear resistance, allowing the line body to be made thinner and lighter with confidence. This is a typical design concept of local reinforcement and overall weight reduction. The flat extrusion process realizes the possibility of thin walls, while the efficient rigid node design ensures the feasibility of thin-walled structures under stress. The combination of the two achieves lightweighting.
[0021] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A wide-width thin-walled aluminum alloy decorative strip for curtain walls, comprising a decorative strip body (1), connectors (2), curtain wall columns (3), and a stainless steel plate (4), characterized in that: The decorative line body (1) is produced by flat extrusion cylinder extrusion process. The decorative line body (1) has a shape that gradually narrows from wide to narrow along the length direction. The wide end of the decorative line body (1) has an interface for fixing. The curtain wall column (3) is fixed on the wall surface where the curtain wall needs to be installed. The stainless steel plate (4) is connected and fixed to the curtain wall column (3) by bolts. The stainless steel plate (4) and the decorative line body (1) are connected and fixed by connector (2).
2. The wide-width thin-walled aluminum alloy decorative strip for curtain walls according to claim 1, characterized in that: The decorative line body (1) has a connecting groove (11) at its wide end. The connecting groove (11) is in the shape of a slide rail. The connector (2) is L-shaped and has a through groove (21) on one side, so that the connector (2) can be directly pushed into the connecting groove (11).
3. The wide-width thin-walled aluminum alloy decorative strip for curtain walls according to claim 2, characterized in that: The surface of the connector (2) is provided with a fin plate (22), which is located inside the groove of the connecting groove (11) when the connector (2) is pushed into the connecting groove (11).
4. The wide-width thin-walled aluminum alloy decorative strip for curtain walls according to claim 2, characterized in that: The connector (2) is manufactured using FRP integrated process and has an open grid structure composed of crisscrossing ribs inside.
5. A wide-width thin-walled aluminum alloy decorative strip for curtain walls according to any one of claims 1-4, characterized in that: The decorative line body (1) and the connector (2) are connected by hexagonal bolts, and the stainless steel plate (4) and the curtain wall column (3) are fixed by pan head bolts.