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Standard Terminology for Wood-based Panels | Terminology for Particleboard

Forestry and grassland standard terminology

Standard Terminology 

of Forest and Grass

Following standard terminology

Editor's Note

1. Particleboard  

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

2. Non-wood particleboard is 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 is a particleboard made from crop straw such as wheat straw or rice straw.

4. Cement particleboardnded particleboard is a board made by mixing wood shavings, cement and other additives with water in a certain proportion, and then carrying out processes such as laying, pressing, drying and curing.

5. Cement-bonded wood fiberboardnded excelsior board is a board made by mixing slender wood fibers, cement and other additives with water in a certain proportion, and then carrying out processes such as laying, pressing, drying and curing.

6. Slag particleboard is a board made by mixing shavings, slag powder and other additives with water in a certain proportion, followed by processes such as laying, hot or cold pressing, and curing.

7. Gypsum particleboard is a board made by mixing shavings, gypsum and other additives with water in a certain proportion, followed by processes such as laying, cold pressing and drying.

8. Lightweight particleboard

Particleboard with a density of less than 500 kg/m³.

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

10. Medium-density particleboard (MDP) has a density of (640-800) kg/m³.

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

12. Platen-pressed particleboard: A method of manufacturing particleboard by applying pressure to a particleboard blank using a heated plate is called the platen-pressing method. The platen-pressing method is further divided into intermittent platen-pressing and continuous platen-pressing. Particleboard manufactured using the platen-pressing method is called platen-pressed particleboard.

13. Mende process particleboard: Particleboard manufactured using a continuous rolling process. 14. Extruded particleboard: Particleboard manufactured using a continuous extrusion process.

15 Molded particleboard

Molded wood shavings are produced by pressing wood shavings into the desired shape using a mold in one step.

16. Single-layer particleboard: Particleboard in which the coarse and fine particle size are 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 particle surface layers and one coarse particle core layer in the thickness direction.

18. Multi-layer particleboard has five or more layers of coarse and fine wood chips in the thickness direction, with the core layer having the coarsest wood chips and each subsequent layer having progressively finer wood chips.

19. Graduated particleboard: Particleboard with no obvious layer boundaries in the thickness direction, and the particle size gradually changes from coarse to fine from the center layer outwards.

20. Structural particleboard: Particleboard that can be used in engineering structures and has a specified load-bearing capacity.

21. Waferboard is a particleboard made by hot pressing together wide, flat shavings (wafers) of a certain size with adhesives and additives.

22. Oriented strand board (OSB)

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

23 Functional ParticleboardNal particleboard is a type of particleboard with special functions such as flame retardancy, corrosion resistance, insect resistance, weather resistance, antistatic properties, heat insulation, and sound absorption.

24. Fire-resistant particleboard: Particleboard with fire-retardant properties.

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

26. Mold-resistant particleboard: Particleboard with anti-mold properties.

27. Static resistant particleboard: Particleboard with anti-static properties.

28. General purpose particleboard: Particleboard that is not typically used in load-bearing applications or for non-furniture purposes.

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

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

31. Heavy-duty load-bearing particleboard: Particleboard used under heavy load conditions.

32 wood shavings

The term refers to the collective term for flakes, rods, and granules of wood or non-wood plant fiber raw materials that have been mechanically processed and have a certain shape and size.

33. Thin, flat flakes: Thin, uniform flakes produced by a flake mill, typically 10mm–25mm in length, 4mm–10mm in width, and 0.2mm–0.5mm in thickness. 34. Wide, flat wafers: Thin, flat flakes with a length greater than 30mm and whose length and width dimensions are essentially the same. 35. Narrow, long, thin, flat wafers: Shavings with an average length greater than 50mm, an average thickness less than 2mm, and an aspect ratio greater than 2:1.

36. Stick Particle: Wood shavings produced by further crushing wood chips using a hammer mill. They are approximately 3mm to 6mm thick and 4 to 5 times their thickness in length.

37 Factory wood shavings (shavin)g. Wood shavings of uneven thickness produced by woodworking planers, thickness planers, or milling machines.

38. Sawdust: The granular residue produced during the sawing process.

39. Fines: Smaller-sized wood shavings produced by further grinding thin, flat wood shavings in a sander. They are typically 2mm to 8mm in length, and about 0.2mm in width and thickness, and are commonly used for the surface layer of particleboard.

40. Wood wool; excelsior: Fine, long wood shavings resembling fibers. Commonly used for the surface layer of particleboard.

41. Wood flour: Powdered wood chips, generally smaller than 40 mesh.

42 Particle geometry: The shape and size of wood shavings, with the size of the shavings often described by parameters such as aspect ratio and length-to-width ratio.

43. Particle preparation: The process of mechanically processing wood or non-wood plant fiber raw materials into wood shavings.

44. Flaking, stranding: The process of turning wood segments or wood chips into flaking shavings by mainly using transverse cutting methods.

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

46. ​​Particle moisture content: The percentage of the mass of moisture in wood shavings to the mass of oven-dried wood shavings.

47. Particle drying: The process of evaporating moisture from wood shavings through heating with a medium to achieve the final moisture content required by the process.

48. Particle blending is the process of uniformly applying a certain amount of adhesive and additives to the surface of wood shavings.

49. Wood shavings application rate; resin content; resin loading level 

The ratio of the weight of oven-dried resin to the weight of oven-dried wood shavings.

50 Particle mat forming is the process of spreading shavings into a particleboard blank with a certain structure after applying adhesive.

51 Strand oriented forming is a method of laying narrow, long, thin, flat wood shavings arranged in a certain direction to form a slab.

52 Particle mechanical forming: A method of laying shavings on a base plate, mesh belt, or steel belt using mechanical action to form a slab.

53 Particle mechanical casting roll forming is a laying method that uses mechanical throwing rollers to scatter wood shavings, causing them to fall onto a pad, mesh belt, or steel belt to form a slab.

54. Particle classification forming is a method of spreading shavings after gluing onto a slab conveyor belt by means of a series of rotating rollers arranged in parallel to each other.

55 Particle air forming is a paving method that uses airflow to scatter wood shavings onto a base plate, mesh belt, or steel belt to form a slab.

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