热门关键词： 济南坚固彩钢工程公司 | 彩钢板 | 复合板 | 彩钢瓦 | c型钢 | 钢结构 |
Metal plate curtain wall has been used for decades, including aluminum veneer, Jinan composite panel and aluminum honeycomb panel. In these three materials, aluminum veneer and composite plate are commonly used. Aluminum veneer appeared very early, later in the late 1960s and early 1970s
The processing technology of Jinan aluminum clad plate is different from that of aluminum veneer. Aluminum veneer production is divided into sheet metal processing and manual spraying. Sheet metal processing is to process the flat aluminum veneer into the shape and size required for construction; manual spraying is to spray paint on the processed sheet metal. The composite plate can be processed only when the roller coating reaches a certain amount. There are four main processes in the process: forming, coating, compounding and trimming. These four processes are all automatic except trimming.
AA1100 pure aluminum plate or AA3003 aluminum alloy plate with thickness of 2-4mm is generally used for aluminum veneer, and AA3003 aluminum alloy plate with thickness of 2.5mm is generally used in China; 3-4mm three-layer structure is generally used for aluminum-plastic composite plate, including PVC or PE sandwiched between upper and lower 0.5mm. Aluminum veneer is easy to melt at the place of lightning stroke, and the damage of aluminum-plastic composite plate is limited to the skin due to the good insulation of polyethylene core in the middle, so aluminum-plastic composite plate has better lightning resistance than aluminum veneer.
Aluminum veneer is metallic and non combustible; although Jinan composite board is added with non-toxic flame retardant materials, the fire resistance is greatly improved, but it is still easy to burn.
There are two kinds of aluminum veneer in the world: fluorocarbon spraying aluminum veneer and roll coating. There is no roll coating production line in China, so the processing process of veneer here is mainly about fluorocarbon spraying production.