Acrylic light box needs a reasonable design structure
To ensure the long-term use of the safety and reliability, all bond type acrylic polymer should use the glue. Light box structure designed to be reasonable, even if the top of the hanging of the crane problem, not the acrylic panel frame extrusion. Acrylic light box signs, panel top edge of the area in bond or other method fixed acrylic article, combined with the light box frame firmly, as the hanging of the crane, after which the top edge parts will bear all the weight. In the bottom edge of the Department Leave generous margin expansion.
In order to prevent undue lateral panels produced, each piece of acrylic sheet in the center of the top wedge screws, and then fixed in the light box frame, to ensure that the direction of each side have the same thermal expansion amount. Can prevent cracks, so that light leakage. When the adhesive acrylic board, the proposed joints processed after the anti-lap slope can avoid the light leakage from the joints, the need to splice together a few pieces of acrylic plate numbers long light box to light before The proposal, in each half-lap joints allow the expansion of office space.
If the light box surface roughness demanding, self-respect and not as plate deformation, it is recommended to use 5 mm plate. For a height of not more than 600mm light box signs, 3 mm acrylic board can be used in conjunction with traditional framework.
Three-dimensional signs
Making through the hot forming process of the 3D light box signs of stiffness generally higher than the flat shape. Therefore, making use 3D sign can be considered a little thin plate thickness. Difficult for the molding to make an accurate reference standard, because it depends on molding design, mold, bonding way stretch than other factors. When considering the selection of appropriate thickness to wind load, note light box panel thickness varies with the degree of stretch forming increases.
Other Considerations
1, it is best not to bore the hole in the acrylic plate fixed with screws, adhesive or should be dedicated to the form of a fixed plate embedded box.
2, acrylic light box signs large size, the internal support structure needed.
3, light boxes have side vents.| Updated:2010.06.10 Source: Clicks:4233
