Level of state of People's Republic of China
Plywood is common plywood is general technical condition
Plywood-General Specification For Plywood For Gengeral Use

1 theme content and use range this standard set by GB9846. The current technology condition of the common plywood of 2 definitions. This standard applies to the plywood that comprises by three-layer veneer at least. This standard does not apply to the plywood that stick a face and special type plywood.

2 cite plywood of standard GB 9846.1 classifies GB 9846. 2 plywood term and plywood of definition GB 9846.3 are common plywood dimension and plywood of GB 9846.5 of condition of tolerancepublic errand technology are common of moisture content of plywood of GB 9846.11 of condition of technology of plywood exterior classify determine GB 9846. Of intensity of 12 plywood agglutination determine

3 board structure

  3. 1 normally photograph adjacent the Mu Wen of two veneer should mutual and perpendicular.

  3. The veneer of layer of two side semmetry should be 2 centers layer same ply, same tree is planted or can similar tree plants physical sex produce a method with lifetime (it is namely cut or coming back is dig cut) , and Mu Wen configures direction to also answer identical.

  3. Two veneer of parallel of direction of 3 wood grain allow to close to make central layer for 2. When testing agglutination strength, these two veneer regard.

  3. 4 same layer watches board should plant for same tree, watch board should tighten look out outside.

  3. The punched tape of the glue that do not have aperture that 5 flat-fell seam use must not be used at plywood interior. If use its joining together one, second-class face plate or repair one, the break of second-class face plate, divide outside be not being decorated, after the event should eliminate glue punched tape and do not stay have mark of apparent glue paper, but the total length that conifer material allows to take punched tape having glue on second-class plywood face plate must not exceed board 15% long.

  3. Below the 6 dry state requirements with be in normal, the watch of broadleaf lumber plywood board ply should not exceed 3. 5mm, lining veneer ply should not exceed 5mm. The ply of the lining of conifer lumber plywood and surface layer veneer all should not exceed 6. 5mm.

  3. Each veneer of 7 plywood does not allow to use without oblique plane adhesive bonding or the termination that point to form joining together.

  3. Must not stay in 8 plywood influential used field trash, do not affect board face level namely, do not affect facing processing to reach do not affect agglutination quality.

Plywood of 4 treatment quality should have orthogonal, straight side, its dimension and public errand should accord with GB9846. The regulation of 3.
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