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

Technology for manufacturing electric laminate board by using beech tree species

A technology of laminating wood and beech, which is applied in the direction of joining, laminating, and laminating devices of wooden veneers, to achieve the effect of improving the shortage of raw materials, good compatibility, and good oil absorption rate

Inactive Publication Date: 2017-09-05
康利源科技(天津)股份有限公司
View PDF6 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the current industry, electrical laminated wood is the main insulating material for oil-immersed power transformers in the electrical industry. High grade, good oil absorption rate, and good compatibility with transformer oil. Electrical laminated wood requires high-quality broad-leaved tree species. At present, the best quality electrical laminated wood in the world is produced in Germany, and they use high-quality beech raw materials. , to produce electrical laminated wood, but there is no such broad-leaved economic tree species in my country, and birch veneer has been used for production. On April 1, 2015, all state-owned forest areas in my country were closed to stop logging, ending 63 years of commercial logging

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

[0018] A kind of technique that the present invention proposes to make electrical laminated plank with beech species, comprises the following steps:

[0019] S1. Select the beech tree species whose trunk can be cut straight to the root and even with the treetop, and process it into wood segments. After cooking at a high temperature of 85°C, rotary cut them into veneer sheets with a thickness of 2.5mm. Impurities generated during the processing It should be removed to ensure that the veneer sheet does not contain impurities polluted by the dielectric;

[0020] S2. Dry the veneer flakes prepared in step S1 at a low temperature of 25°C. After drying, the moisture content is 10%. The repaired specifications and quality of the sheared veneer are checked to see if there is no back crack and the surface A good finish is a qualified veneer;

[0021] S3. Apply the modified alcohol-soluble phenolic resin glue evenly on the qualified veneer. The solid content of the phenolic resin is 68...

Embodiment 2

[0025] A kind of technique that the present invention proposes to make electrical laminated plank with beech species, comprises the following steps:

[0026] S1. Select the beech tree species whose trunk can be cut straight to the root and even with the treetop, and process it into wood segments. After cooking at a high temperature of 82°C, rotary cut them into veneer sheets with a thickness of 1.8mm. Impurities generated during the processing It should be removed to ensure that the veneer sheet does not contain impurities polluted by the dielectric;

[0027] S2. Dry the veneer sheet prepared in step S1 at a low temperature of 20°C. After drying, the moisture content is 10%. The specifications and quality of the repaired veneer are checked for no back cracks and the surface A good finish is a qualified veneer;

[0028] S3. Apply the modified alcohol-soluble phenolic resin glue evenly on the qualified veneer. The solid content of the phenolic resin is 62%, and the glue amount ...

Embodiment 3

[0032] A kind of technique that the present invention proposes to make electrical laminated plank with beech species, comprises the following steps:

[0033] S1. Select the beech tree species whose trunk can be cut straight to the root and even with the treetop, and process it into wood segments. After cooking at a high temperature of 87°C, rotary cut and process it into veneer sheets with a thickness of 2.2mm. Impurities generated during the processing It should be removed to ensure that the veneer sheet does not contain impurities polluted by the dielectric;

[0034] S2. Dry the veneer flakes prepared in step S1 at a low temperature of 15°C. After drying, the moisture content is 11%. The specifications and quality of the repaired veneer are checked for no back cracks and the surface A good finish is a qualified veneer;

[0035] S3. Apply the modified alcohol-soluble phenolic resin glue evenly on the qualified veneer. The solid content of the phenolic resin is 66%, and the a...

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 discloses a technology for manufacturing an electric laminate board by using beech tree species. The technology comprises the following steps of (S1) processing the beech tree species into wood segments, steaming at a high temperature and peeling into veneer sheets; (S2) carrying out low-temperature drying treatment on the veneer sheets and inspecting; (S3) coating the qualified veneers with a modified alcohol-soluble phenolic resin adhesive and then carrying out low-temperature drying; (S4) arranging the veneer sheets and assembling into a blank; and (S5) loading the blank into a hot press, carrying out high-temperature pressing, cooling, releasing a semi-finished product, and then carrying out final trimming and panel polishing to obtain the electric laminate board. The technology for manufacturing the electric laminate board by using the beech tree species is simple in operation, available in raw material and low in cost; and the prepared product is high in mechanical strength, good in oil absorption rate, good in compatibility with transformer oil and good in electrical property, and can be widely applied to a transformer with a high voltage grade for manufacturing a lead bracket, a pressure plate and upper and lower iron yoke insulators.

Description

technical field [0001] The invention relates to the technical field of manufacturing special wood-based panels in the wood processing industry, in particular to a process for making electrical laminated wood panels with beech species. Background technique [0002] In the current industry, electrical laminated wood is the main insulating material for oil-immersed power transformers in the electrical industry. High grade, good oil absorption rate, and good compatibility with transformer oil. Electrical laminated wood requires high-quality broad-leaved tree species. At present, the best quality electrical laminated wood in the world is produced in Germany, and they use high-quality beech raw materials. , to produce electrical laminated wood, but there is no such broad-leaved economic tree species in my country, and birch veneer has been used for production. On April 1, 2015, all state-owned forest areas in my country were closed to stop logging, ending 63 years of commercial logg...

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): B27D1/08B27K5/00B32B37/06B32B37/10B32B37/12
CPCB27D1/08B27K5/0085B32B37/06B32B37/10B32B37/12B32B2037/1253
Inventor 孙忠海
Owner 康利源科技(天津)股份有限公司
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com