Blockboard QC Inspection Checklist : Part 1 Quality Inspection Requirements for Blockboard
Number of inspections: perceptual census, allowed deviation items random sampling of 20% of the total.
For a product composed of multiple materials, the corresponding technical standards shall be implemented according to the difference of the constituent materials.
The varieties, quality, grades, models, specifications and colors of the main materials, accessories and accessories used in wood products must conform to the requirements of the design, the current construction acceptance criteria and the technical standards of the products.
The wood used for cabinet products shall comply with the following provisions:
1. Water content of wood is less than 12% (water content of glue-bonded wood is 8-10%).
2. Wood twill degree = inclined length/horizontal length X 100%<20%;
3. No decayed or insect-eaten wood shall be used.
4. The diameter of the exterior loops is less than 1/5 of the width or thickness of the loops, and the maximum diameter is less than 5 mm.
5. No dead knots, wormholes or cracks shall be allowed in the exterior materials.
6. The looper diameter of the internal material is less than 1/4 of the width or thickness of the material, and the maximum diameter is less than 20 mm.
7. The crack length of internal material is not greater than that of component: 10% through crack and 15% non-through crack.
8. The local thickness of blunt edge of internal material is less than 1/4 and the width is less than 1/5.
9. No resin capsule shall be found in the painting or storage parts.
10. The exterior timber species should be single, the timber properties should be stable, the texture should be similar and symmetrical.
11. Tree species with the same piece of rubber should have similar texture.
12. Lining strips for cladding panels should be made of trees with similar texture as far as possible.
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