PVC arched extruded foam board is a practical raw material. Because its key component is polyethylene, it is also called foamed polyvinyl chloride board. Whether it is in the car roof or the interior decoration of some houses, we can see The existence of this product, this product has several advantages such as moisture insulation, heat insulation, sound insulation, noise reduction and high temperature resistance, so how can we choose a reliable PVC arched foam board based on the inspection of its characteristics?
First, the surface inspection of PVC arched foam board
When inspecting the surface of the PVC arched foamed board, you must first touch the surface of the board with your hand to see the flatness of the light exposure, the fine level of the texture of the mechanical equipment, and the grayishness of the board surface. All the normal colors of the surface of the PVC arch extruded foam board are milky white, and the surface is free of stains, small pits, pinholes and holes, and it is more difficult to have gaps.
Second, the side inspection of PVC arched foam board
In addition to the inspection of the surface of the PVC arched foamed board, the side of the product should also be inspected. When inspecting the side of the product, the flatness of the wound and the fine relative density of the porosity should be checked. During the whole process, it is necessary to ensure that there are no pinholes, thick holes, and no significant powder fall on the side. In addition, it is necessary to check whether the cutting chemical fiber has fallen off or chipped. If the above problems occur during the entire inspection process, This will cause a great deal of inconvenience to the production and processing of the finished products after the fact.
3.Thickness, net weight and density inspection of PVC arched extruded foam board
In addition to inspecting the appearance of the product, it is also necessary to inspect its thickness, net weight and relative density. When inspecting its thickness, the vernier caliper should be cubic meters and close to the board surface. There should be no gaps. The thickness should be symmetrical up and down, the thickness error should not be too large, and it needs to be controlled within the effective range; when carrying out the inspection of the net weight and relative density of the plate, keep in mind the calculation of the optimized algorithm formula of the net weight and relative density to ensure accurate measurement data information accurate.
