Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

High-strength thick laminated veneer lumber and manufacturing method thereof

A technology of laminated veneer and veneer, which is applied in the joining of wooden veneers, manufacturing tools, wood processing appliances, etc. The effect of saving the amount of use and high efficiency

Inactive Publication Date: 2012-12-12
NANJING FORESTRY UNIV
View PDF3 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this method, the veneer needs to be dried, and the time for cold pressing and gluing is very long (about 24 hours), and the preparation efficiency is very low

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • High-strength thick laminated veneer lumber and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Example 1: Preparation of high-strength thick laminated veneer lumber

[0014] 1. Preparation of poplar veneer. The process is: Italian poplar logs-cutting-softening of wood segments-peeling-rotary cutting-shearing-repairing-oblique grinding. The thickness of Italian poplar veneer is 3mm, and the moisture content does not need special control.

[0015] 2. Glue the Italian poplar veneers, use phenolic resin between adjacent veneers, and use epoxy resin between veneers and carbon fiber cloth. The amount of glue applied on both sides of the veneer is 250-300g / m 2 .

[0016] 3. Assemble the 20-layer Italian poplar veneer along the grain, see figure 1 , place three layers of carbon fiber cloth 7 between the first veneer 1 and the second veneer 2, between the tenth veneer 3 and the eleventh veneer 4, between the nineteenth veneer 5 and the Between 6 veneers of 20 layers.

[0017] 4. Hot pressing on a microwave press at a temperature of 130-150°C, a pressure of 1.0-1.2 M...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

Abstract

The invention provides high-strength thick laminated veneer lumber which is simple in structure, low in cost and excellent in mechanical property simultaneously. The high-strength thick laminated veneer lumber is formed by gluing, assembling, pressing and bonding a plurality of layers of veneers. Carbon fiber cloth is arranged between the first layer of veneer and the second layer of veneer, between the last first veneer and the last second veneer and between the two layers of medium veneers.

Description

technical field [0001] This technology relates to laminated veneer lumber and its preparation method. Specifically, it is a method for manufacturing Italian high-strength and thick laminated veneer lumber with carbon fiber reinforced high-strength and thick laminated veneer lumber and microwave heating. Structural wood-based panel manufacturing field. Background technique [0002] Laminated veneer lumber is a new high-performance structure made of small-diameter logs, which are laminated with multi-layer glue, along the grain (or horizontal grain veneer can be added), and glued together after rotary cutting. Material. It not only retains many good natural advantages of wood, but also has uniform structural properties, small variation in strength, high allowable stress, far exceeding that of sectioned wood, close to no-sectioned wood, good dimensional stability, and better than steel in strength-to-weight ratio , easy to process, and has good stability and shock resistance....

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B27D1/04B32B21/10B27D1/08
Inventor 卫佩行黄润州黄思维龙海蓉李慧媛周定国
Owner NANJING FORESTRY UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com