Have you noticed the structure of a bridge? Before several hundreds or tens of hundred years ago, the brilliant Chinese craftsman had already got that idea. Tubes can both help water flow and reduce the total weight. As you can see, many stone bridge shows much beauty and high strength, with the help of tubes. As it can also work in particle board, and tubular particle board comes.
Chipped. Wood logs or branches are firstly to chipped into particles, but you must make sure that there is no barks, no iron and no tones.
Dried. Particles are dried and separated from harmful iron and stones.
Glued. Spray E1 glue and mix it with particles homogeneously.
Press and heated. After heated and pressure, particles will be extruded together and become harden. Then tubular chipboard comes continuously.
Extrusion method brings much unique advantages for this kind of door core,and here are the chart.
Weight Reduction | Up to 60% weight is reduced |
Thickness Range | Solid particle board is often 15-25mm, while tubular ones can produce up to 40mm |
Density | 320kg/m³ |
Sound Insulation | Reduce sound transmission |
Cost saving | Save 50-60% raw materials |
Less formaldehyde | Use standard E1 glue,and tubes help to use less glue for each panel |