Posts Tagged ‘materials’

04.24
18

Particleboard

by yudaica2013 ·

At the factory the manufacturer of raised floor cuts particle boards to standard sizes of panels raised floor. Sela Ward may not feel the same. Note that, depending on the thickness of the border cutting chipboard each manufacturer has its own, but the overall size of the output of finished panel is to be strictly 600 x 600 mm. On the density and related technological requirements applicable dsp boards depends on the quality of finished particleboard panels in general. Density Particleboard panels shall be 720 kg / cu.m. In terms of layers of chip dsp boards should be placed in a certain order.

Larger particles chips are concentrated in the center and smaller – closer to the outside. This is to ensure that the surface layer was more dense, so – harder. You need to pay attention to the fact that the formation of prices raised floor panels of particle board depends entirely on the quality of used particle board panels. Cheap particle board – cheap panel raised floor, and of course lower quality and less reliable design in the end. Very low particle boards manufactured in Asia. It is therefore not surprising that samples of Chinese access floor panels in the section have the same 'grain' of the entire thickness and weight of the panel (due to lower density) in comparison with European specimens significantly smaller. The main conditions for granting permission to implement and use the raised floor at sites in Europe is to meet clearly defined standards of fire resistance of the samples raised floor.

04.11
14

Physico-mechanical Properties Of Particleboard

by yudaica2013 ·

Chipboard (DSP) manufactured by hot pressing of wood particles (wood chips) with a binder. As a binder used urea-formaldehyde, phenol-formaldehyde and other resins. Using the cpd in various sectors of the economy determines the diversity in the requirements for plates, which accounts for a large number of their species. Particleboard klassifikatsiyDSP classified by the method compaction, construction, type of chopped wood, applied by the binder, facing materials, etc. By way of pressing distinguish dsp flat molding and extrusion, ie extruded shapes.

The first manufactured with the application pressing efforts perpendicular plate and the second – parallel to it. By pressing the flat plate design issued one-, three-, five-and multi-layer, single-layer extrusion complete with internal channels. In the single-layer slabs of sizes of wood particles and binder content are the same throughout the thickness of the slab. In the three-and five-layer slabs, one or both outer layers (each side) are made of finer particles with a high content of binder in comparison with the internal layers. These plates have a smooth surface and have high durability. Particleboard produced unlined and lined with (one or two layers peeled or sliced veneer, paper, impregnated with synthetic resins, synthetic film, etc.).