Thin Plywood ( 2.7mm to 3.6mm ) Inspection and QC CHECKLIST
由于薄板有着天生的柔韧性和弯曲性，还有天生的缺陷比如翘曲 和 很容易折断。
Because the thin plywood sheet has inherent flexibility , there are also inherent defects such as warping and easy to break.
In the quality inspection of thin plywood , special attention should be paid to the internal structure of plywood. It is generally not allowed to use finger joints core veneer . The whole core veneer or scarf joints coreveneers are more suitable for thin plywood . They have strong tension, are not easy to break, and are not easy to warp. However, because the thin plywood sheet generally only uses one side of the sheet, in general, the tree species on both sides of the plywood sheet may be inconsistent not the same , so this is also one of the reasons why the plywood sheet is easy to warp.
In the quality inspection of thin plywood sheets , the diagonal bending method and the parallel short-side 1220mm bending method should be strictly implemented to test the internal structure.
Other defects are the same like regular plywood inspection ,such as apperance natural defects and manufacturing defects .