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Process of producing bamboo chipboard

A manufacturing method and technology of large bamboo sheets, applied in the direction of manufacturing tools, flat products, pretreatment of molding materials, etc., to achieve the effect of reducing production cost, reducing bamboo raw material cost and production cost, and improving utilization rate

Inactive Publication Date: 2011-03-23
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 applied to the production of this product, and how to realize its industrial production has not been mentioned in the previous application.

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

[0046] Use more than 2-year-old dragon bamboo, cut the bamboo stalks into 70mm long bamboo tubes, slice the bamboo tubes into 0.5±0.1mm thick bamboo shavings along the longitudinal diameter (see figure 1 or figure 2 ). The bamboo shavings are placed in a drum dryer, dried to a moisture content of 7%, and sprayed with 10% melamine-modified urea-formaldehyde resin by a drum mixer. The large flakes after sizing were dried to a moisture content of 8%. According to the relationship between the density of dragon bamboo itself, the average density of dragon bamboo boards and the target performance, the target density is set at 0.763g / cm 3 And convert it into the paving quantity of glue-containing shavings per unit area, and lay them into a single-layer random structure slab according to the uncertain axis angle β of the shavings (such as Figure 7As shown), the slab is pre-pressed with a pre-pressing pressure of 1.5Mpa, the temperature of the hot-pressing plate is set to 140°C, t...

Embodiment 2

[0048] Repeat Example 1, with the following differences: select raw moso bamboo for more than 2 years, cut it into long and thin bamboo strips with a thickness of 0.6 ± 0.1mm along the longitudinal direction of the bamboo stalk with a cutting machine, and then cut it with a cutting machine Become 120mm long bamboo shavings. Spray sizing with phenolic resin at a ratio of 7%, and set the target density as 0.726g / cm according to the relationship between the density of moso bamboo itself, the average density of moso bamboo boards and the target performance 3 And converted into the pavement amount of glue-containing shavings per unit area, set the hot-pressing time to 12 minutes, and press to obtain a phenolic resin single-layer random structure bamboo large shaving slab with a length of 2440mm, a width of 1220mm, and a thickness of 10mm. It replaces wooden boards and is used as outdoor packaging box boards and I-beam webs with good results.

Embodiment 3

[0050] Repeat embodiment 1, have following difference: with more than 2 years raw hemp bamboo, bamboo stalk is cut into the bamboo tube of 150mm length, along the vertical diameter surface the bamboo tube is sliced ​​into thick bamboo shavings of 0.7 ± 0.1mm. Spray sizing with 8% phenolic resin. According to the relationship between the density of hemp bamboo itself, the average density of hemp bamboo boards and the target performance, the target density is set to 0.836g / cm 3 And convert it into the pavement amount of rubber-containing shavings per unit area, and pave into a single-layer oriented structure slab (such as Figure 8 Shown), set the hot pressing time to be 13min, press to obtain 2440mm long, 1220mm wide, 10mm thick quality standard phenolic resin single layer oriented structure bamboo flake slabs. It replaces wooden boards and is used as outdoor packaging box boards and I-beam webs with good results.

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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 boards, in particular to particle boards made of bamboo, in particular to a method for manufacturing bamboo large-sheet particle boards. Background technique [0002] At present, the bamboo particle boards produced at home and abroad all belong to the category of Particleboard. It is necessary to first crush the bamboo stalks into finely divided unit raw materials, then dry and apply glue to these finely divided raw materials, and pave them into slabs of certain specifications. Finally, through high temperature and high pressure, the bamboo particle board is made. Although this kind of bamboo particle board has strong adaptability to different bamboo species and bamboo stalks, and has the advantages of high raw material utilization rate and smooth board surface, the excellent mechanical properties of bamboo cannot be obtained because the bamboo fibers are too broken. Fully exerted, it can gene...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B27N3/02B27N1/00B27N1/02B27N3/08
Inventor 张宏健
Owner SOUTHWEST FORESTRY UNIVERSITY
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