You are here: Home / News / plywood / what is plywood ?

Contact

ADDRESS

 No.58 Volvo Road Economic Development Area,Linyi City,China
 

E-MAIL
 info@plymachine.com

 

TELEPHONE

  +86-539-6017997 6017977
 +86-539-6017787

what is plywood ?

Views: 8     Author: Site Editor     Publish Time: 2022-09-12      Origin: Shandong Jinlun Machinery Manufacturing Co,Ltd

Plywood is a sheet material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. It is an engineered wood from the family of manufactured boards which includes medium-density fibreboard (MDF) and particle board (chipboard).

All plywoods bind resin and wood fibre sheets (cellulose cells are long, strong and thin) to form a composite material. This alternation of the grain is called cross-graining and has several important benefits: it reduces the tendency of wood to split when nailed in at the edges; it reduces expansion and shrinkage, providing improved dimensional stability; and it makes the strength of the panel consistent across all directions. There is usually an odd number of plies, so that the sheet is balanced—this reduces warping. Because plywood is bonded with grains running against one another and with an odd number of composite parts, it has high stiffness perpendicular to the grain direction of the surface ply.

Smaller, thinner, and lower quality plywoods may only have their plies (layers) arranged at right angles to each other. Some better quality plywood products will by design have five plies in steps of 45 degrees (0, 45, 90, 135, and 180 degrees), giving strength in multiple axes.

CONTACT US

 Company: Shandong Jinlun Machinery Co,Ltd. 
 Tel: +86-539-6017977
 Fax: +86-539-6017787
 Email: info@plymachine.com
 Address: No.58 Volvo Road Economic Development Area,Linyi City,China
INQUIRY

PRODUCT CATEGORY

 Copyright © 2023 Shandong Jinlun Machinery Manufacturing Co,Ltd.    All Rights Reserved