Indonesian Blockboard Quality Standard Requirements

Indonesian Blockboard Quality Standard Requirements

Technical Requirements for Blockboard Processing: (1) Main Factors Affecting the Quality of Blockboard

Surface smoothness, thickness deviation and warping deformation of blockboard are important quality indicators. The main influencing factors are as follows: (1) the influence of core bar element of blockboard.

Blockboard is mainly composed of core which is made up of core bars. Because of the large size of core bars and the influence of processing accuracy and moisture content, it is difficult to achieve the same plastic deformation and uniform wood properties at the same time. A kind of

2. The Effect of Core Bar Material on Core Bar Material

Even if the same material is used, the core bar will be different because of site conditions, early and late timber, tree age, wood defects and so on. When the wood properties of adjacent core bars are quite different, it is difficult to produce high quality Blockboard by common process. It is unrealistic to separate core material according to material quality in large-scale production.

3. Effect of Core Plate

The surface and back boards for the production of blockboard have become thinner and thinner. The core board is highly demanded to produce high surface smoothness Blockboard with thin face and back board. At present, poplar, Paulownia and other domestic fast-growing timber are mostly used for rotary cutting. Because of poor material quality, more holes in rotary cutting veneer, rough surface, more burr grooves and large thickness deviation, the surface smoothness is greatly affected. At present, many factories adopt the process of manual or mechanical automatic assembly after shearing materials. The thickness deviation, moisture content, core, sapwood or early or late wood of each veneer still affect the surface smoothness, dimensional stability and thickness deviation of blockboard. A kind of

4. Influences of Structural Level

Common joinery boards generally have five layers of structure: panel, core board, core board and back board. The size and shape of sheet metal are easily changed due to the difference of materials in each layer. The symmetry of the panel, backplane and two core boards in tree species, wood properties, thickness and moisture content is difficult, which also affects the stability of size and shape.

Blockboard

  1. Indonesian Blockboard Albasia Falcata Throughout.
  2. Indonesian Blockboard Face/Back MLH + core Albasia Falcata.

  Dimension     : 1220 mm x 2440 mm (4 x 8 ft).
Thickness       :  15 and 18 mm.
Glue                :  Type 2 MR / E2 / E1 / E0 / sE0.
Grade             :  BB/CC grade / Utybetter.
Sanding Both Sides.
Packing          :  Standard Pallet Export.

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