LVL LVB Boards Inspection

LVL LVB Boards Inspection

Laminated veneer lumber (LVL): The wood is peeled into veneers over 1 mm thick by rotary cutting, then coated with glue, thickened and laminated.After drying, the surface is roughly sanded. Its processing technology and structure are the same as that of plywood, but the surface is not covered with high-grade decorative veneer.Usually its thickness is thicker than plywood, has a strong tensile and torsional resistance, mostly used for building formwork, decoration and decoration of the base material.The common materials in our country are poplar and pine.

First ,check the required  sizes ,thickness and width 38 x 225 x 3900 mm is or not ,standard sizes or other sizes .

2. Raw materials of the LVL Board,Pine or Eucayptus or Poplar ?

3.Check if the suppliers have full sets of certificates , if OSHA Certified ?

4.Check the glue types of th LVL  ,have the test reports ?

5.Check the production process ,how many layers and how are the pressing rates of the hot pressing line

6.thickness tolerance ,sizes tolerance

7.Surface natural  defects such as decay ,worm holes ,dead knots or knot holes …

8.  Manufacturing flaws  such as delamination, warp, twist, bow, or shrink ,high moisture content .

9.Check the LVL and LVB structure ,When considering appearance, LVL is like plywood, but the direction of the wood grain is always parallel to the length and laminated in the same direction.

Chinese version you can download and read at https://wenku.baidu.com/view/9aadb406cc17552707220850.html

 

如无特殊说明,文章均为本站原创,转载请注明出处。If there are no special instructions, the articles are original, if you want to use or reproduce, please indicate the original source www.plywoodinspection.com,If you find that our article infringes on your rights and interests, please email us in time and we will delete it at the first time.

Check Also

British Standard 1088 (Joubert Okoume & Hydrotek Marine Meranti) GRADING RULES

British Standard 1088 (Joubert Okoume & Hydrotek Marine Meranti) GRADING RULES B.S. 1088 : 1966 …

Leave a Reply

Your email address will not be published. Required fields are marked *