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Standard terminology for wood-based panels | Particleboard terminology

Standard Terminology for Forestry and Grassland

Standard Terminology 

of Forest and Grass

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1 particleboard  

A type of man-made board made by processing wood or non-wood plant fiber raw materials into shavings (or chips), applying adhesives (and other additives), assembling them into shapes, and then hot pressing them.

2 Non-wood particleboard Non-wood particleboard is a particleboard made from non-wood plants (such as bamboo, reeds and crop straw) or agricultural processing residues (such as bagasse, peanut shells, rice husks, etc.)

3 Straw particleboard Straw particleboard is a particleboard made from crop straw such as wheat straw or rice straw.

4 Cement particle board cement-boIndled particleboard is a board made by mixing wood chips, cement and other additives with water in a certain ratio, and then going through processes such as paving, pressing, drying and curing.

5 cement-boEnded excelsior board is a board made by mixing slender wood fibers, cement and other additives with water in a certain ratio, and then going through processes such as paving, pressing, drying and curing.

6 Slag particleboard is a board made by mixing wood shavings, slag powder and other additives with water in a certain ratio, and then paving, hot pressing or cold pressing, and curing.

7 Gypsum particleboard is a board made by mixing wood chips, gypsum and other additives with water in a certain ratio, and then paving, cold pressing and drying.

8 lightweight particleboard

Particleboard with a density less than 500kg/m³.

9 Low-density particleboard: Particleboard with a density of less than 640kg/m³.

10 Medium-density particleboard: particleboard with a density of (640-800) kg/m³.

11 High-density particleboard: particleboard with a density greater than 800kg/m3.

12 Platen-pressed particleboard: A method of manufacturing particleboard using a heated plate to pressurize a particleboard mat is called the flat pressing method. The flat pressing method is further divided into intermittent and continuous methods. Particleboard manufactured using the flat pressing method is called flat-pressed particleboard.

13 Mende process particleboard Particleboard manufactured by continuous roller pressing. 14 Extruded particleboard Extruded particleboard Particleboard manufactured by continuous extrusion.

15 Molded particleboard

Molded wood particle products are made by pressing wood particle products into the desired shape in one step using a mold.

16 Single-layer particleboard Single-layer particleboard is a particleboard with coarse and fine particles basically evenly distributed in the thickness direction of the board.

17 Three-layer particleboard is a particleboard with a three-layer structure consisting of two fine wood particle surface layers and a coarse wood particle core layer in the thickness direction of the board.

18 Multi-layer particleboard Multi-layer particleboard has five or more layers of coarse and fine particles in the thickness direction of the board, with the core layer having the coarsest particles and the particles gradually becoming finer in the outer layers.

19 Graduated particleboard has no obvious layer boundaries in the thickness direction of the board, and the particle size changes gradually from coarse to fine from the center layer to the outside.

20 Structural particleboard Structural particleboard is a particleboard that can be used for engineering structures and has a specified load-bearing capacity.

21 Waferboard is a particleboard made by applying adhesives and additives to wide flat wood chips (wafers) of certain specifications and then paving them with hot pressing.

22 oriented strand board; OSB

Narrow, long, thin, flat wood chips are applied with adhesive, arranged in the same layer and laid in the same direction, and then hot-pressed to form a particleboard.

23 Functional particle board functioNAL particleboard is a particleboard with special functions such as flame retardancy, anti-corrosion, insect resistance, weather resistance, anti-static, heat insulation, and sound absorption.

24 Fire resistant particleboard Fire resistant particleboard Particleboard with flame retardant properties.

25 Decay resistant particleboard Decay resistant particleboard Particleboard with anti-corrosion properties.

26 Mold resistant particleboard Mold resistant particleboard Particleboard with mold resistant properties.

27 static resistant particleboard static resistant particleboard particleboard with antistatic function.

28 General purpose particleboard General purpose particleboard is a particleboard that is not usually used in load-bearing situations or for furniture.

29 Furniture grade particleboard Furniture grade particleboard Particleboard used for furniture or decoration usually requires secondary surface processing.

30 Load-bearing particleboard Load-bearing particleboard is usually used for small structural components or particleboard used under normal load-bearing conditions.

31 Heavy-duty load bearing particleboard Heavy-duty load bearing particleboard is a particleboard used under heavy load bearing conditions.

32 particle

A general term for flake, rod and granular fragments with a certain shape and size that are made by mechanical processing of wood or non-wood plant fiber raw materials.

33. Flakes: Thin, uniform flakes produced using a flaker, typically 10mm to 25mm long, 4mm to 10mm wide, and 0.2mm to 0.5mm thick. 34. Wafers: Thin, flat flakes with a length of 30mm or more, with length and width roughly equal. 35. Strands: Strands with an average length greater than 50mm, an average thickness less than 2mm, and an aspect ratio of 2:1 or greater.

36 Stick particles: Wood chips are crushed by hammer mill. They are similar in thickness and width, about 3mm to 6mm, and their length is 4 to 5 times their thickness.

37 Factory Shavings Shaving Shavings of uneven thickness produced by woodworking planers, planers or milling machines.

38 Sawdust Sawdust is the granular residue produced during the sawing process.

39 Microshavings: Thin, flat wood shavings that are ground and then crushed into smaller pieces. They are generally 2mm to 8mm long, with a width and thickness of approximately 0.2mm. They are commonly used for the surface layer of particleboard.

40 Wood wool; excelsior Long, thin wood wool similar to fiber. Often used for the surface layer of particleboard.

41 Dust; wood flour Powdered wood chips, generally with a size of less than 40 mesh.

42 Particle geometry The shape and size of particles. Particle size is often described by parameters such as aspect ratio and length-to-width ratio.

43 Particle preparation Particle preparation is the process of mechanically processing wood or non-wood plant fiber raw materials into particles.

44 Flaking, stranding is the process of processing wood sections or chips into flaky wood chips, mainly using transverse cutting method.

45 Particle screening is the process of sorting wood particles according to their size, shape or mass per unit area. There are two sorting methods: mechanical sorting and airflow sorting.

46 Particle moisture content Particle moisture content is the percentage of water mass in wood particles to the mass of absolute dry wood particles.

47 Particle drying Particle drying is the process of evaporating the water in the wood chips by heating the medium to achieve the final moisture content required by the process.

48 Particle blending is the process of evenly applying a certain mass of adhesive and additives to the surface of wood particles.

49 Resin content; resin loading level 

The ratio of the mass of absolute dry resin to the mass of absolute dry wood chips.

50 Particle mat forming The process of laying the glued wood particles into particle board mats with a certain structure.

51 Strand oriented forming A paving method in which narrow, long, thin and flat strands are arranged in a certain direction to form a slab.

52 Particle mechanical forming Particle mechanical forming is a paving method that uses mechanical action to spread wood particles on a pad, mesh belt or steel belt to form a slab.

53 Particle mechanical casting roll forming is a paving method that uses the action of mechanical casting rollers to cast wood chips, making them fall on a pad, mesh belt or steel belt to form a slab.

54 Particle classification forming is a paving method that uses a series of parallel rotating rollers to grade the shavings according to size and spread them onto the slab conveyor belt.

55 Particle air forming is a paving method that uses airflow to blow wood chips onto a pad, mesh belt or steel belt to form a slab.

Source: GB/T 18259-2018 "Terminology of Wood-Based Panels and Their Surface Decoration" under the jurisdiction of the National Technical Committee for Standardization of Wood-Based Panels