Blockboard Inspection and QC checklist
Inspect the Blockboard is very complicated job ,the apperance is easy to inspect and grade ,the core construction need check carefully .
1.Lumber core strips ,how many pieces of long strips
2.The width of the long lumber strips
3.THE thickness of the lumber strips
5.The apperance grade of the lumber strips
6.the edges are smooth and no hollow
7.Butt joint or finger joint lumber core
8.Top plies of poplar veneer quality ,how many plies ,3-ply ,or 5-ply
9.Wood species of the lumber strips : Poplar ,Pine ,Chinese Fir ,falcata ….
10.Face types are wood veneer or melamine paper ….
11.other manufacturing defects are same like plywood ,easy to grade
- Careful, virtually invisible reworking of outer veneers, flawless and non-diagonal edges
- Controlled face grades for appropriate use