Plywood Classification terms

Plywood Classification terms

2022-12-30
Plywood Classification terms
Plywood Classification terms

1、Plywood is a kind of multilayer material composed of veneer, which is usually glued by vertically assembling blanks according to the texture direction of adjacent layers of veneer.
2、 composite plywood  is a kind of wood-based panel whose core layer (or some specific layers) is composed of materials other than veneer or solid wood, but at least two interlaced veneer panels are glued on each side of the core layer.
3、Symmetrical structure plywood is a kind of plywood with the same tree species, thickness, texture direction and physical and mechanical properties for the corresponding layers on both sides of the central layer.
4、 plywood for general use is plywood for ordinary use.
5、 plywood for specific use is a kind of plywood which has some special properties and is suitable for special purposes. Such as ship plywood, fire-retardant plywood, aviation plywood, etc.
6、 Aviation plywood is a special plywood made of birch or other similar species of veneer and phenolic resin film paper, which is mainly used for aircraft parts manufacturing.
 7、Marine plywood is a kind of special plywood with high water resistance, which is made of the surface board impregnated with phenolic resin adhesive and the core board coated with phenolic resin adhesive by hot pressing. It is mainly used in the manufacturing of ship parts.
8、 Difficult-flammable plywood  is a kind of plywood and its surface decoration product whose combustion performance meets the requirements of Class B1 in GB 8624
9、Insect resistant plywood is a kind of special plywood with insect repellent added to veneer or adhesive, or the product treated with insect repellent, which has the function of preventing insect damage.
10、preservative-treated plywood is a kind of special plywood with the function of preventing fungal discoloration and decay by adding preservatives to veneer or adhesive, or by treating the product with preservatives
11、 plybamboo is made of bamboo as raw material according to the principle of plywood composition, including bamboo plywood, bamboo strip plywood, bamboo woven plywood, bamboo curtain plywood, composite bamboo plywood, etc.
12、 strip plybamboo is a kind of bamboo plywood, which is made of bamboo chips as a component unit and is pressed by the glue group.
13、 sliver plybamboo is a kind of bamboo plywood, which is made of bamboo strips as a component unit, and is pressed by the glue application group, including bamboo woven plywood, bamboo curtain plywood and bamboo strip laminated plywood.
14、 woven mat plybamboo is a kind of bamboo plywood, which is made by interlacing bamboo strips into bamboo mats and then pressing them with glue.
15、 Curtain plybamboo  is a kind of plywood made of bamboo by weaving bamboo strips into bamboo curtains and then pressing them with glue.
16、 The composite plybamboo  is a kind of bamboo plywood, which is formed by gluing bamboo chips, bamboo strips, bamboo veneer and other different components according to certain rules.
17、The wood-bamboo composite plywood is a kind of plywood which is made of various sheet materials processed from bamboo and wood by wood bamboo composite plywood, and then laminated with glue after being applied.
18、The  classⅠplywood is weather resistant plywood that can pass boiling test and be used under outdoor conditions.
19、 The class Ⅱ plywood can pass the hot water immersion test at 63 ℃± 3 ℃, and is used for water resistant plywood under wet conditions.
20、  The class Ⅲ plywood can pass the dry state test and is used as non moisture resistant plywood under dry conditions.
21、 Interior type plywood for indoor use is made of urea formaldehyde resin adhesive or adhesive with equivalent performance. It can not withstand long-term water immersion or excessive humidity, and is limited to indoor use.
22、Exterior type plywood for outdoor use is made of phenolic resin adhesive or equivalent resin as adhesive, which has weather resistance, water resistance and high humidity resistance, and is suitable for outdoor use.
23、Structural plywood can be used as plywood for bearing structural members of buildings.
24、Plywood for concrete-form can be used as plywood for concrete forming mould.
25、
long-grain plywood
The long-grain plywood is a kind of plywood whose grain direction is parallel or nearly parallel to the long direction of the board
26、
cross-grain plywood
The cross grain plywood is the plywood whose grain direction is parallel or nearly parallel to the board width direction.
27、multi-plywood
Multi-plywood is made of five or more layers of veneer.

28、moulded plywood
Moulded plywood  is a kind of non planar plywood, which is made of glued veneer to form a slab according to certain requirements and is hot pressed in a mold with a specific shape
29、
Scarf joint plywood
Scarf joint plywood is a kind of plywood that is processed into an inclined plane at the end of the plywood along the grain direction, and then extended by gluing
30、Finger joint plywood is a kind of plywood that processes the end of the plywood along the grain direction into finger tenon, and is extended by gluing.