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Process of producing stalk recombining material

A manufacturing method and technology of recombined wood, applied in the direction of manufacturing tools, flat products, wood processing appliances, etc., can solve the problems of destroying the longitudinal strength of straw, single structure, and few varieties, and achieve easy control of moisture content, simple production process, and sticky convenient effect

Inactive Publication Date: 2007-11-07
NORTHWEST A & F UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The existing crop straw wood-based panels are crushed into shavings or processed into fibers. These processing methods destroy the original longitudinal strength of the straw, low yield, high energy consumption, and also affect the physical and mechanical properties of the product; using isocyanate glue The cost of sticking is high and it is easy to stick to the board; the straw-based panels currently produced are mainly straw particle boards, with few varieties and a single structure

Method used

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  • Process of producing stalk recombining material
  • Process of producing stalk recombining material

Examples

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Effect test

example 1

[0019] After the roots and leaves are removed from the cotton stalks, they are steamed and softened, rolled and peeled off, and then processed into cotton stalk fiber bundles that are not broken vertically and interlaced in the horizontal direction, as shown in Figure 1; the cotton stalk fiber bundles are dried to a moisture content of ≤10%. Use urea-formaldehyde resin glue with a solid content of about 50% for glue spraying treatment, and then assemble the billets, and after the glue is applied, the pavement and billets of the straw fiber bundles are arranged in the same direction, as shown in Figure 2; after pre-pressing, hot pressing, and sawing The finished product of cotton stalk recombined wood is obtained. The table below shows the comparison of the physical and mechanical properties of the cotton stalk recombined wood produced by the present invention and related materials in the prior art.

[0020] Material

example 2

[0022] After removing the roots, clips and leaves of the bean stalks, they are cooked and softened, and then rolled and processed into bean stalk fiber bundles. The bean stalk fiber bundles are dried to a water content of ≤10%, sprayed with urea-formaldehyde resin glue with a solid content of about 50%, and then formed into billets, which are pre-pressed, hot-pressed, and sawn to obtain finished bean stalk recombined wood.

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Abstract

The present invention discloses process of producing artificial stalk board. The material is treated through softening and rolling to form longitudinally continuous and transversely staggered fiber bundles, and the fiber bundles are glued, spread, pre-pressed and hot pressed to form artificial board with moderated density, excellent mechanical performance and good machining performance. The present invention raises the mechanical performance of artificial stalk board and develops one kind of timber substitute.

Description

technical field [0001] The invention relates to a manufacturing method of wood-based panels, which belongs to the technical field of wood-based panels, and in particular relates to a manufacturing process and technology of recombined wood using crop straws as raw materials Background technique [0002] With the increasing protection of forest resources in my country and the increasing demand for timber, timber resources are becoming more and more tense. Crop straw is an excellent biomass material. Its main composition is similar to that of some broad-leaved wood, and it has a wide range of sources. It is an ideal wood substitute material. Using crop straw to make wood-based panels can solve the problem of tight supply of wood-based panel raw materials. [0003] The existing crop straw wood-based panels are crushed into shavings or processed into fibers. These processing methods destroy the original longitudinal strength of the straw, low yield, high energy consumption, and a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27N3/04B27N1/00B27N3/14B27N3/10
Inventor 宋孝周郭康权陈达刘钊
Owner NORTHWEST A & F UNIV
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