• Door core material hollow particleboard

    Door core material hollow particleboard

    1. Excellent physical performance The density of mechanical bridge deck is 0.35-0.55g/cm3, while the density of flat-pressed door deck is about 0.75g/cm3. It can be seen that the density of mechanical bridge deck deck is lower than that of flat-pressed particleboard. The quality of the door core plate can be greatly reduced by using the mechanical plate of the bridge hole, and it can be reduced by 60%.The mechanical plate of bridge tunnel has good thermal insulation and sound insulation performance. The hollow plate of 40mm thickness is equivalent to the thermal insulation effect of 300mm thick brick wall, and the sound insulation is up to 28 dB.Its compressive resistance is good, and it will not deform under the pressure of 2MPa.Due to the particularity of bridge mechanical plate manufacturing process, the water absorption expansion rate (TS) of the product in the thickness direction is very small, almost comparable with the radial shape variation of wood. Although the longitudinal static strength of the bridge mechanics plate produced by extrusion method is very low and the water absorption expansion rate of the length direction is high, the longitudinal static strength of the 3mm veneer can fully meet the national standard requirements of ordinary particleboard. The mechanical bridge deck is only used as the core plate, which has certain requirements on its thickness. It will be coated when used, and it is only used in the dry environment. The water absorption expansion rate in the direction of its length will not affect its use.

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