Aluminum sheet thickness plates are mainly divided into the following types according to thickness: thin aluminum sheet(0.15-2.0mm), standard aluminum plate(2.0-6.mm), medium thick aluminum plate:(6.0-25.0mm), thick aluminum plate(25-200mm) and super thick aluminum sheet( above 200mm). 8mm aluminium plate is a popular thick aluminum plate.
The actual thickness of aluminum plates may vary depending on the aluminum plate manufacturer and application requirements. For example, common aluminum thickness specifications are 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, etc.
Taking the construction field as an example, common customized thicknesses include alouminium sheet 3mm, 4mm, 6mm, etc. When choosing the thickness of the aluminum plate, factors such as the specific application scenario, the required load-bearing capacity, and the appearance requirements should be taken into consideration.
In addition, aluminum plates are also divided into pure aluminum plates, aluminum alloy plates, aluminum tread plates,etc. Each type of aluminum plate may have different thickness specifications. Therefore, when choosing aluminum plates, in addition to considering thickness, decisions should also be made based on specific materials, uses and performance requirements.
The thickness tolerance of aluminum plate directly determines the accuracy and performance of the finished product. Stable thickness tolerance of aluminum plate also contributes to the smooth progress of the production process. Accurate thickness tolerance can improve material utilization, reduce unnecessary material waste and reduce production costs.
Raw material control
Select high-quality aluminum ingots as raw materials to ensure that their chemical composition is uniform. The physical properties of different batches of raw materials may vary, which will affect the rolling process and final thickness of the aluminum plate. Strict raw material inspection is the first step to control the thickness tolerance. Chemical composition analysis and physical property tests should be carried out on each batch of aluminum ingots.
Rolling equipment and process optimization
Advanced rolling equipment is the key. High-precision rolling mills, equipped with advanced thickness automatic control systems (AGC), can monitor and adjust the rolling thickness of aluminum plates in real time. At the same time, the rolling process parameters, such as rolling speed, rolling force, roll gap, etc., are set reasonably. Through multiple tests, the most suitable process parameter combination for aluminum plates of different specifications like 4mm aluminium plate is found to ensure uniform thickness of aluminum plates during rolling.
Personnel operation and quality inspection
The skills and sense of responsibility of the operators have a great impact on the thickness tolerance control of the aluminum plate. Provide professional training for the operators to make them familiar with the equipment operation and process requirements, and strictly follow the operating procedures for production. During the production process, it is necessary to strengthen quality inspection and adopt a combination of online inspection and offline sampling. Online inspection can provide real-time feedback on the thickness of the aluminum plate, and once an abnormality is found, it can be adjusted in time; offline sampling can more comprehensively detect the thickness of different parts of the aluminum plate to ensure that the product quality meets the standards.