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Manufacturing method of high strength high wear resistant Yiyang cement mould board

A technology of cement formwork and manufacturing method, which is applied in the directions of manufacturing tools, bonding of wooden veneers, chemical instruments and methods, etc., can solve the problems of low mechanical strength of plywood cement formwork, less repeated use, and limited product use, etc. The effect of reducing construction costs, high production efficiency and improving physical and mechanical properties

Inactive Publication Date: 2008-01-02
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the fast growth rate, low density and poor material quality of poplar wood, the mechanical strength of the plywood cement formwork made of it is low, and the number of repeated uses is small, which limits the use of the product and causes a large waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Step 1: Enhanced Substrate Fabrication

[0037] Veneer processing: Italian poplar from Xuzhou, Jiangsu Province, 25cm in diameter, fresh wood, after peeling, use a rotary cutter of model BQ1213 / 8 to turn into a veneer with a nominal thickness of 1.2mm.

[0038] Veneer drying and sorting: The wet veneer is dried to a final moisture content of 10% with a jet mesh belt dryer model BG183 / 2A-5, and unqualified veneers are removed by manual sorting.

[0039] Veneer gluing: use a model BS3427 four-roller gluing machine to double-sided glue the poplar veneer for the core layer, the adhesive is phenolic resin glue, the solid content is 48%, and the glue amount is 200g / m 2 .

[0040] Glass fiber cloth impregnated with phenolic resin adhesive and drying: alkaline glass fiber cloth impregnated with water-soluble phenolic resin adhesive, the amount of impregnation is 50-60g / m 2 , after drying, cut into sheets with a length of 2450mm and a thickness of 1230mm for later use.

[004...

Embodiment 2

[0051] Step 1: Enhanced Substrate Fabrication

[0052] Veneer processing: Italian poplar from Xuzhou, Jiangsu Province, 30cm in diameter, fresh wood, after peeling, use a rotary cutter of model BQ1213 / 8 to spin into a veneer with a thickness of 2.2mm.

[0053] Veneer drying and sorting: The wet veneer is dried to a final moisture content of 10% with a jet mesh belt dryer model BG183 / 2A-5, and unqualified veneers are removed by manual sorting.

[0054] Veneer gluing: double-sided gluing with poplar veneer for the core layer of the four-roller gluing model BS3427, the adhesive is phenolic resin glue, the solid content is 48%, and the glue amount is 280g / m 2 .

[0055] Glass fiber cloth impregnated with phenolic resin adhesive and drying: alkaline glass fiber cloth impregnated with water-soluble phenolic resin adhesive, the amount of impregnation is 50-60g / m 2 , after drying, cut into sheets with a length of 2450mm and a thickness of 1230mm for later use.

[0056] Veneer and i...

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Abstract

A method for making the high-strength and high-antiwear cement shuttering with Yi poplar log includes such steps as spinning cutting to obtain wood ply, drying, classifying, coating resin, immersing glass fiber cloth in phenolic resin, drying, laminating said wood plys and glass fiber cloth layers, pre-pressing, hot pressing, polishing surface, preparing antiwear film, and hot pressing for attaching the antiwear film onto the reinforced substrate.

Description

technical field [0001] The invention belongs to the technical field of wood-based panels and composite materials, and relates to a method for manufacturing a high-strength and high-wear-resistant poplar cement formwork. Background technique [0002] With the continuous, rapid and stable development of my country's economy, the continuous improvement of people's living standards and the further acceleration of urbanization process, a good economic environment and space are provided for the development of the construction industry, and more and more projects using cast-in-place concrete structures , while the demand for templates has increased significantly, higher requirements have also been put forward for its quality. Formwork specifications are developing towards serialization and systematization, formwork materials are also developing towards diversification, and the use of formwork is developing towards multi-function and large-area. [0003] At present, my country's con...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B32B21/04B27D1/04B28B7/00
Inventor 周定国梅长彤夏友忠周晓燕王启良张洋徐咏兰徐信武
Owner NANJING FORESTRY UNIV
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