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Oriented chipboard and processing technology

A technology of oriented strand board and preparation process, which is applied in the field of particle board, oriented strand board and preparation process, can solve the problems such as the limitation of particle length, and achieve the effects of reducing production cost, improving bearing capacity, and increasing static bending strength and elastic modulus

Active Publication Date: 2011-09-28
寿光市鲁丽木业股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the limitation of the wood processing process by the mechanical processing equipment planer, the length of the shavings is limited within the range of 145mm
Therefore, its static bending strength and elastic modulus index values ​​also have certain limitations.

Method used

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  • Oriented chipboard and processing technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Raw materials: leftover dry / wet rotary cut veneer leftovers from plywood processing

[0033] Equipment: guillotine cutting machine, crusher, conveyor belt, dryer, winnowing machine, hot press, paving machine.

[0034] Reagents: modified melamine resin glue (produced by Zibo Aowei Adhesive Co., Ltd.), wax emulsion waterproofing agent (produced by Shanghai Jiaoer Chemical Products Co., Ltd.), industrial phosphoric acid (mass percentage concentration 85%, Shifang Hongyu Chemical Industry Co., Ltd. Co., Ltd.), industrial ammonium chloride (mass percentage concentration 99.5%, produced by Shandong Kangte Weiye Chemical Co., Ltd.), water (industrial water).

[0035] step:

[0036] (1) material preparation

[0037] Raw materials: Dry / wet rotary cut veneer scraps left over from plywood processing, with a thickness of 0.4-0.9mm;

[0038] The moisture content of the wet veneer is 30% to 50%, and the moisture content of the dry veneer is 15% to 20%.

[0039] (2) guillotine cut...

Embodiment 2

[0074] Raw materials: leftover dry / wet rotary cut veneer leftovers from plywood processing

[0075] Equipment: guillotine cutting machine, crusher, conveyor belt, dryer, winnowing machine, hot press, paving machine.

[0076] Reagents: phenolic resin glue (manufactured by Qingdao Jingweite Chemical Co., Ltd.), water.

[0077] step:

[0078] (1) material preparation

[0079] Raw materials: Dry / wet rotary cut veneer scraps left over from plywood processing, with a thickness of 0.4-0.9mm;

[0080] The moisture content of the wet veneer is 30% to 50%, and the moisture content of the dry veneer is 15% to 20%.

[0081] (2) guillotine cutting

[0082] Use guillotine cutter to cut wet veneer and dry veneer separately, the length of shavings cut by guillotine is ≤170mm, and try to avoid horizontal feeding.

[0083] (3) Broken

[0084] Use a crusher to crush the shavings so that the width of the shavings is ≤40mm and the length is ≤170mm. Separate the shavings with a length greater...

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Abstract

The invention discloses an oriented chipboard and a processing technology. The chipboard is composed of three layers including two surface layers and one intermediate core layer, which are adhered together by adhesives; the processing technology uses rotary cut veneer wastes remained in a plywood production process as raw materials to substitute small-diameter standard materials, so that a large volume of wood is saved, and production cost is saved; and simultaneously, the length of the oriented chipboard can be increased by using the method, consequently, inherent mechanical property indexes of the oriented chipboard can be improved, and the oriented chipboard has higher carrying capacity; the oriented chipboard and the processing technology provided by the invention have the advantages that the rotary cut veneer wastes can be used as the raw materials, so that the large volume of wood is saved, the production cost is saved, the static bending strength and the elastic modulus of the produced oriented chipboard are synchronously increased, and the carrying capacity of the oriented chipboard is greatly improved.

Description

technical field [0001] The invention relates to a particleboard, in particular to an oriented particleboard and a preparation process, and belongs to the field of production and processing of wood-based panels. Background technique [0002] Oriented strand board (OSB) is a new type of structural particle board. It is made of narrow, long and flat large shavings. After mixing glue, the surface and core layers are perpendicular to each other and paved in a direction, and are formed by hot pressing. [0003] Most of the large shavings required for oriented strand boards in the prior art are made of small-diameter timber planed by a planer, which wastes wood virtually and increases the workload. According to Hua Yukun, Zhou Dingguo, Jin Juwan, and Pan Yiqing in the article "The Effect of Shaving Size on the Properties of Oriented Structure Boards": "The length of oriented shavings has a significant impact on the static bending strength and elastic modulus. Increasing the length ...

Claims

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Application Information

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IPC IPC(8): B27N3/02B27N3/14
Inventor 钟笃章国智武
Owner 寿光市鲁丽木业股份有限公司
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