Built-in keel composite wood and its preparation method

A technology of inner keel and wood, which is applied in the field of built-in keel composite wood and its preparation, which can solve the problems of difficulty in confirming the grade of wood, achieve good insulation, overcome natural defects, and reduce materials

Inactive Publication Date: 2014-10-29
孙相文
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

From the natural moisture content to the equilibrium moisture content, the shrinkage ratio in each direction varies by 10 to 20 times. In practice, it is difficult to confirm the grade of wood

Method used

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  • Built-in keel composite wood and its preparation method
  • Built-in keel composite wood and its preparation method
  • Built-in keel composite wood and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] The built-in keel composite wood of the present invention is composed of an outer layer board 1, an inner keel layer board 2 and a foamed polyurethane 3, and more than one layer of inner keel layer boards 2 arranged at intervals in the warp and weft direction are built between the two outer layer boards 1. The foamed polyurethane 3 is filled in the inner gap. The outer layer board 1 is composed of more than one wooden boards connected with each other by mortise and tenon in sequence. 2-5 layers of inner keel laminates 2 are built between the two outer layers 1 . The gap between the two outer skin boards 1 and the inner keel board 2 is formed by solidified foamed polyurethane 3 .

[0022] Its preparation method is as follows:

[0023] a. Material selection, surface cleaning, and processing into profile planks of uniform specifications;

[0024] b. Inserting the profile planks made in step a into the mold side by side to form the outer layer board 1;

[0025] c. Place...

Embodiment 2

[0032] The built-in keel composite wood of the present invention is composed of an outer layer board 1, an inner keel layer board 2 and a foamed polyurethane 3, and more than one layer of inner keel layer boards 2 arranged at intervals in the warp and weft direction are built between the two outer layer boards 1. The foamed polyurethane 3 is filled in the inner gap. The outer layer board 1 is composed of more than one wooden boards connected with each other by mortise and tenon in sequence. Three layers of inner keel laminates 2 are built between the two outer panels 1 . The gap between the two outer skin boards 1 and the inner keel board 2 is formed by solidified foamed polyurethane 3 .

[0033] Its preparation method is as follows:

[0034] a. Select suitable wood, clean the surface, and process it into profile planks of uniform specifications;

[0035] b. Arrange the profile planks prepared in step a side by side, and arrange them side by side with mortise and tenon join...

Embodiment 3

[0042] The built-in keel composite wood of the present invention is between the two outer layer boards 1, three layers of inner keel laminates are arranged at intervals in the warp direction, two layers of inner keel laminates 2 are arranged at intervals in the direction of latitude, and the inner keel in the direction of warp and weft Laminates are arranged alternately, filled with foamed polyurethane, and bonded to form a load-bearing, heat-insulating, air-insulating, and sound-insulating building material. The cross-sectional size of the board is determined according to the structural design, and the surface material is determined according to the architectural design. The thickness is 60-240, the width is 900-1500, and the length is 3000-8000. Among them, the inner keel is designed according to the bearing capacity requirements of the wall panel, and the surface plate is designed according to the decoration requirements; the surface plate and inner keel are designed accordi...

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Abstract

The invention relates to a built-in keel composite wood and a preparation method thereof, belonging to building heat preservation materials and the preparation method thereof. The built-in keel composite wood comprises outer surface layer plates, inner keel layer plates and foaming polyurethane, wherein the foaming polyurethane is filled in gaps positioned among the inner keel layer plates positioned above a built-in layer between the two outer surface layer plates and arrayed longitudinally and latitudinally at intervals. The preparation method of the built-in keel composite wood comprises the following steps of: processing woods into section bars with uniform specifications, and mutually splicing and parallelly arranging into a mould to form the outer surface layer plate; placing the inner keel layer plates longitudinally and latitudinally at intervals on the outer surface layer plates; placing the section bars on the inner keel layer plates to form the other outer surface layer plate; closing the mould, and pressing; injecting the foaming polyurethane into the gap positioned between the two outer surface layer plates; standing at normal temperature, and demoulding to prepare a finished product. The built-in keel composite wood and the preparation method thereof can inherit various stress requirements of a wood structure into a same member, sufficiently exert the mechanical property of the woods, carry out the industrialized production, reduce the requirement for the quality of the single member, sufficiently utilize the wood resources and reduce the engineering cost and the installation and maintenance cost; and the built-in keel composite wood disclosed by the invention utilizes the woods as raw materials and has the advantages of environmental protection, energy saving, good insulativity, water prevention without cracking, corrosion resistance and prolonged service life.

Description

technical field [0001] The invention belongs to building thermal insulation materials and a preparation method, in particular to a built-in keel composite wood and a preparation method. Background technique [0002] The thermal insulation board in the prior art consists of three layers, the upper and lower layers are metal layers, and the middle is an insulation layer made of insulation materials, so the cost is relatively high. The tightness of the plug-in parts between the boards is poor, the connection strength is poor, and it is easy to fall off. Insulation boards that are not provided with a metal layer also have a series of problems such as poor load-bearing performance, troublesome installation, and short service life. Wood is a renewable resource. Wooden structure houses have developed greatly in the world due to their renewability, environmental protection, earthquake resistance, livability, light weight and high strength. There are currently more than 300 wooden ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E04B1/80B32B21/08B32B21/14B32B3/02B32B3/22B32B27/06B32B27/40
Inventor 孙相文孙田子白金严宝树马静李鹤
Owner 孙相文
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