Road traffic signage production materials are usually aluminum, reflective film, sliding channel steel, hoop backing, bolts, angle aluminum, etc., of which aluminium circle sheet for road signs is the main material of the sign, with lightweight, corrosion-resistant, easy to process and other advantages. Reflective film is used to enhance the reflective effect of the sign at night and improve the visibility and recognition of the sign. For the specific choice of aluminium circle for road sign, aluminum alloy is usually used, such as 1060 aluminum circle, 3004 aluminum circle, 3003 aluminum circle and so on. Among them, 3004 aluminum circle is more widely used in traffic sign making because it has better corrosion resistance, formability, weldability, fatigue strength, and moderate static strength. These aluminium circle for road signs are usually used in specifications of 2mm and 3mm thickness.
Aluminium circle sheet for road signs can be customized into different shapes according to the actual demand, and the common shapes include round, triangular, rectangular, and so on. The choice of these shapes mainly depends on the design requirements of the road signs and the usage scenarios. For example, round aluminium circles are usually used to make prohibition signs, speed limit signs, etc., because the round shape is simple, eye-catching, and easy to attract the attention of drivers. Triangular aluminum discs are often used to make warning signs, such as "Attention to falling rocks", "sharp turn", etc., to remind drivers to pay attention to changes in road conditions. Rectangular shaped aluminum discs are more commonly used for directional signs, wayfinding signs, etc., as rectangular shapes are able to clearly display text and information. In addition to the shape, the size and thickness of aluminum circle for road sign can also be customized according to actual needs. Generally speaking, the larger the size and thickness of the aluminium circles, the stronger its carrying capacity and durability, but the corresponding cost will also increase.
To sum up, aluminum alloy materials such as 3004 aluminum alloy are usually chosen for the production of road traffic signs, and the appropriate thickness and processing methods are selected according to specific needs. When choosing aluminium circle sheet for road signs, it is also necessary to consider factors such as the processability, corrosion resistance, strength and cost of the material. At the same time, the production process may also need to use aluminum alloy rivets for connection, as well as hot-dip galvanizing and other treatments to improve the corrosion resistance of the traffic sign.