Vacuum pressure impregnating and glue-applying technique

A technology of vacuum pressurization and impregnation, used in wood processing appliances, impregnated wood, manufacturing tools, etc., can solve the problems of poor sizing effect and large amount of sizing, and achieve good anti-corrosion effect, low solid content, and glue high intensity effect

Inactive Publication Date: 2009-08-05
云南永利发林业有限公司
View PDF0 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] What the present invention aims to solve is that in the processing technology of the container floor, the wood veneer, bamboo mat, bamboo curtain or bamboo sheet used in the blank assembly is applied by two methods of gluing or dipping, and the amount of sizing glue is large and the sizing effect is poor. The problem is to provide a method of impregnating resin adhesives into wood veneers or bamboo mats, bamboo curtains, and bamboo sheets under vacuum conditions, so that the resin adhesives can enter the interior of the material through the cell cavity and cell wall of the impregnated material. Go, especially those hard broad-leaved woods or bamboos that are difficult to absorb glue, in order to improve the glue strength, static bending strength, elastic modulus of the container floor

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: Vacuum pressure impregnation sizing process, comprises the following steps:

[0011] (1) Drying treatment: the wood veneer with a thickness of 1.1-1.8mm is dried to make its moisture content 17%;

[0012] (2) adjust phenolic resin adhesive: add CCA preservative in the phenolic resin glue, and add water dilution in a certain proportion, make the solid content of phenolic resin glue be 24%;

[0013] (3) Gluing: Put the dried wood veneer into the pressure vessel, turn on the vacuum, and keep the vacuum at 82.4Kpa for 10 minutes; then inject the diluted phenolic resin adhesive into the pressure vessel and apply pressure at the same time , the pressure is kept at 1.4Mpa, and the time is 8 minutes, so that the glue absorption of the wood veneer is 20%;

[0014] (4) Secondary drying: the wood veneer impregnated under vacuum pressure is then subjected to secondary low-temperature drying, the drying temperature is 90° C., and the moisture content after drying is 1...

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

No PUM Login to view more

Abstract

The invention provides a vacuum pressure impregnation sizing process, and relates to a process for producing plywood for container bottom plates, in particular to a vacuum impregnation sizing process for wood veneers, bamboo mats, bamboo curtains or bamboo chips. The process comprises drying treatment, resin adhesive preparation, sizing and secondary drying. The process for sizing has the advantages of reducing the production cost, ensuring uniform adhesive-absorbing amount and guaranteeing the gluing strength of the plywood for container bottom plates.

Description

technical field [0001] The invention relates to a process for producing plywood for container bottom plates, in particular to a process for vacuum impregnation and sizing of wood veneers or bamboo mats, bamboo curtains and bamboo chips. Background technique [0002] At present, in the processing technology of producing the container floor, the wood veneer, bamboo mat, bamboo curtain or bamboo sheet glue used in the billet assembly is glued or dipped in two ways. Its main disadvantages are: 1. The amount of glue applied is large, and the production cost is high; 2. If flour is added to increase the viscosity of the glue, the flour will be wasted; The amount of glue is uneven, which affects the bonding strength; 4. Since the production of container bottom plates requires the use of hard broad-leaved wood or bamboo, which are materials with relatively high hardness and density, it is difficult for the glue to penetrate into the material through the cell cavity and cell wall; 5....

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): B27K5/04B27K3/34B27D1/08
Inventor 邱天祥
Owner 云南永利发林业有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap