Laminated Veneer Board (LVB) Inspection and QC Checklist

Laminated Veneer Board (LVB) Inspection and QC Checklist

Laminated Veneer Board (LVB) is similar to LVL but there are some cross veneer to increase the strength to the wide sides. This could be found for application in the flat surfaces such as flooring, etc.

When inspect the LVB ,mostly are the same like LVL ,only one need to check if the LVB core construction ,all the veneer grain direction .

QUALITY RULES
 

  1. Thickness and angle tolerances for face and core veneers and composed plywood sheets
  2. Appropriate choice if glue lines, such as MR E-1,   WBP ( Water Boil Proof ) and real Phenolic glue
  3. Controlled moisture content, good drying
  4. Core construction without overlaps and voids and glue joint of core veneer
  5. Appropriate choice of core veneers for core from A – B – C – D – E and F grade  
  6. Calibrating of core for smooth and flat face veneers
  7. Machine jointing of face veneers to avoid joint separation
  8. Careful, virtually invisible reworking of outer veneers, flawless and non-diagonal edges
  9. Controlled face grades for appropriate use
  10. No man made defects in face veneers or film or wire mesh surface
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