







Aluminum film pull tab is an important component used in the aluminum alloy formwork system to connect and fix the aluminum formwork on both sides. It is widely used in modern construction. The following provides a detailed introduction from the aspects of structure, working principle, advantages, and application scenarios:
• Structural features
Material: High strength aluminum alloy material is usually used, which has the characteristics of light weight, high strength, and corrosion resistance. It can reduce the overall weight of the formwork while ensuring the connection strength, making it convenient for construction operations.
Shape: It is commonly a long strip thin sheet, with a length customized according to the thickness of the wall and the splicing requirements of the formwork. The surface has teeth or anti slip patterns to enhance the friction between the formwork and concrete, ensuring the stability of the connection.
End design: One end is usually wedge-shaped or has a barbed structure, making it easy to insert into the reserved hole of the aluminum template; The other end is equipped with matching fastening components, such as pull tab nuts or pins, to fix the pull tab and prevent it from loosening and falling off.
• Working principle
During the installation of aluminum formwork, the aluminum film pull tab is inserted through the predetermined holes on both sides of the aluminum formwork, so that the two ends of the pull tab are located on the outside of the formwork. By tightening the fastening components at the ends, the two sides of the formwork are tightly pulled together to form a stable formwork system. During the concrete pouring process, the pull tab bears the lateral pressure of the concrete, ensuring that the position and shape of the formwork remain unchanged, and preventing problems such as formwork expansion and leakage. After the concrete reaches a certain strength, remove the fastening components of the pull tab and take out the pull tab for reuse.
• Advantages
Improve construction efficiency: The installation and dismantling process is simple and fast, and compared to traditional pull screws, there is no need for additional drilling, cutting, or other processes, which can effectively shorten the construction period.
Enhanced molding quality: The pull tab is evenly distributed and has strong fastening force, which can make the template splicing more compact, effectively reduce the joint marks on the concrete surface, improve the flatness and smoothness of the wall surface, and achieve a better effect of plain concrete.
Cost saving: The pull tab can be reused multiple times, reducing material costs; At the same time, it reduces the cost of concrete repair caused by loose template splicing.
Environmental protection and energy conservation: Aluminum alloy material can be recycled and reused, in line with the concept of green construction; And the construction process generates less construction waste, with minimal impact on the environment.
• Application scenarios
Suitable for various construction projects using aluminum alloy formwork, including residential, commercial complexes, industrial plants, etc. Especially in the construction of structural parts such as walls, columns, and floors in high-rise buildings, aluminum film pull tabs can fully leverage their advantages to ensure the stability of the formwork system and the quality of concrete pouring.