Process of producing bamboo chipboard

A manufacturing method and technology for large pieces of bamboo are applied in the direction of manufacturing tools, flat products, pretreatment of molding materials, etc., to achieve the effects of reducing the cost of raw materials and production costs of bamboo materials, reducing production costs, and being highly adaptable.

Inactive Publication Date: 2007-11-07
SOUTHWEST FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, further studies have shown that conventional particleboard and plywood production processes cannot be directly applie...

Method used

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  • Process of producing bamboo chipboard
  • Process of producing bamboo chipboard
  • Process of producing bamboo chipboard

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Use dragon bamboo to grow more than 2 years old, cut the bamboo stalks into 70mm long bamboo tubes, and cut the bamboo tubes into 0.5±0.1mm thick bamboo shavings along the longitudinal diameter plane (see Figure 1 or Figure 2). The large bamboo shavings are placed in a drum dryer and dried to a moisture content of 7%, and a drum mixer is used for spray sizing with 10% melamine-modified urea-formaldehyde resin. The large pieces of wood shavings after sizing are dried to a moisture content of 8%. According to the relationship between the density of Longzhu, the average density of Longzhu board and the target performance, the target density is set to 0.763g / cm 3 It is converted into a paving amount of glue-containing shavings per unit area, and paves it into a single-layer random structure slab (as shown in Figure 7) according to the uncertain axis angle β of the shavings. , Set the hot pressing temperature to 140℃, the hot pressing pressure to 3.6Mpa, and the hot pressing tim...

Embodiment 2

[0049] Repeat Example 1, with the following differences: Choose moso bamboos that are more than 2 years old, cut them into long thin bamboo strips with a thickness of 0.6±0.1mm along the longitudinal direction of the bamboo stalks with a slicing machine, and then cut them with a cutting machine Large pieces of bamboo shavings with a length of 120mm. Phenolic resin is used for spray sizing at a ratio of 7%, and the target density is set to 0.726g / cm according to the relationship between the density of moso bamboo itself, the average density of moso bamboo board and the target performance. 3 It is converted into a paving amount of glue-containing shavings per unit area, and the hot pressing time is set to 12 minutes, and a phenolic resin single-layer random structure bamboo shavings flat board with a standard quality of 2440mm long, 1220mm wide and 10mm thick is obtained. Instead of wooden boards, it can be used as outdoor packaging box boards and I-beam webs with good results.

Embodiment 3

[0051] Repeat Example 1, with the following differences: using raw hemp bamboo for more than 2 years, the bamboo stalks are cut into 150mm long bamboo tubes, and the bamboo tubes are sliced ​​along the longitudinal diameter into 0.7±0.1mm thick bamboo shavings. Spray sizing with phenolic resin at a ratio of 8%. The target density is set to 0.836g / cm according to the relationship between the density of hemp bamboo, the average density of hemp bamboo board and the target performance. 3 And converted into paving amount of glue-containing shavings per unit area, pave the single-layer oriented structure slab according to the mean value of the axis angle β of the shavings of 30°±5° (as shown in Figure 8), set the hot pressing time to 13min, and press Obtained a phenolic resin single-layer oriented structure bamboo shavings flat board with a length of 2440mm, a width of 1220mm and a thickness of 10mm. Instead of wooden boards, it can be used as outdoor packaging box boards and I-beam web...

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Abstract

The process of producing bamboo flake chipboard includes the steps of resolving bamboo longitudinally into large bamboo flakes, drying, gluing, pre-pressing and hot pressing to obtain bamboo flake chipboard in required cross section shape. The bamboo flake chipboard may be used widely in replacing wooden board for building, packing, vehicle, ship, decoration and other fields. The present invention has high bamboo utilizing rate, and lowered material cost and production cost.

Description

Technical field [0001] The invention belongs to the technical field of artificial board, and specifically relates to a particle board using bamboo as a raw material, and in particular to a method for manufacturing a large bamboo particle board. Background technique [0002] At present, the bamboo particleboard produced at home and abroad belongs to the category of particleboard. It is necessary to first crush the bamboo stalks into finely divided unit raw materials, and then dry, sizing, and pave the finely divided raw materials into a slab of a certain specification. Finally, the bamboo particle board is made by high temperature and high pressure. Although this kind of bamboo particle board has strong adaptability to different bamboo species and bamboo stalk parts, it has the advantages of high raw material utilization rate and smooth board surface, but the excellent mechanical properties of the bamboo material cannot be obtained because the bamboo fiber is too broken Give full ...

Claims

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Application Information

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IPC IPC(8): B27N3/02B27N1/00B27N1/02B27N3/08
Inventor 张宏健
Owner SOUTHWEST FORESTRY UNIVERSITY
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