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Plastic overlaid plywood building template with large turnover number and preparation method thereof

A technology for veneer plywood and building formwork, which is applied in the on-site preparation of building components, construction, building structure, etc., can solve the problems of difficult demoulding and low turnover times, and achieves fast support and demoulding speed and turnover times. The effect of high and shortened construction period

Inactive Publication Date: 2012-04-25
卜凡华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problems of difficult demoulding and low turnover times of the existing wooden formwork or plywood formwork during use, and provides a plastic-faced plywood building formwork with high turnover times and its preparation method

Method used

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  • Plastic overlaid plywood building template with large turnover number and preparation method thereof
  • Plastic overlaid plywood building template with large turnover number and preparation method thereof
  • Plastic overlaid plywood building template with large turnover number and preparation method thereof

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Experimental program
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specific Embodiment approach 1

[0009] Specific implementation mode 1: A kind of high-turnover plastic veneer plywood building formwork in this embodiment is to paste a layer of veneer on the upper and lower surfaces of the wooden plywood 1, the thickness of the veneer is 0.5mm ~ 3mm, each layer The veneer is composed of a polyolefin material layer 3 and a non-woven fabric 2, and the non-woven fabric 2 is located between the wood plywood 1 and the polyolefin material layer 3; the polyolefin material layer 3 is composed of 85% to 100% polyolefin by mass percentage And 0 ~ 15% filler composition.

[0010] In this embodiment, polyolefin is added to the vertical three-roller plastic sheet unit for extrusion, and after extrusion, it is covered with non-woven fabric while it is hot, and then the non-woven fabric and polyolefin sheet are combined by extrusion, and then used Cold-pressed glue sticks the polyolefin sheet to the wood plywood. Through the method of this embodiment, the polyolefin veneer is obtained on...

specific Embodiment approach 2

[0011] Specific embodiment two: this embodiment differs from specific embodiment one in that the thickness of the veneer is 0.8 mm to 2.5 mm, and the polyolefin material layer 3 is 88% to 98% polyolefin and 2% to 12% by mass percentage. % filler composition. Others are the same as the first embodiment.

specific Embodiment approach 3

[0012] Embodiment 3: This embodiment differs from Embodiment 1 in that the thickness of the veneer is 1.5mm, and the polyolefin material layer 3 is composed of 92% polyolefin and 8% filler by mass percentage. Others are the same as the first embodiment.

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Abstract

The invention relates to a plastic overlaid plywood building template with a large turnover number and a preparation method thereof, in particular to a building template and a preparation method thereof. Due to the adoption of the plastic overlaid plywood building template with the large turnover number, the technical problems of the present wooden template or the overlaid plywood building template that a mould is difficult to remove and the turnover number is small during the application process can be solved. The plastic overlaid plywood building template with the large turnover number is characterized in that: a layer of polyolefine laminated surface is adhered on the upper surface and the lower surface of the wooden plywood template. The preparation method comprises the following steps that: after polyolefine material is extruded by a vertical-type three-roller plastic sheet machine set to obtain sheets, a layer of non-woven fabric covers the sheet to be extruded again to obtain the polyolefine laminated surface which is covered by the non-woven fabric; and adhesive is smeared onto the non-woven fabric, then the non-woven fabric which is smeared with the adhesive covers the upper surface and the lower surface of the polished wooden polywood to be pressed so as to obtain the plastic overlaid polywood building template with lage turnover number. The surface of the template is free from being adhered by the cement, the turnover times of the template are 25 to 30 times, and the template can be used for construction engineering.

Description

technical field [0001] The invention relates to a building template and a preparation method thereof. Background technique [0002] Formwork is an indispensable tool for the construction of concrete structures, which directly affects the quality, speed, cost and economic benefits of construction companies. The main formwork of the existing concrete structure engineering is the plywood formwork. The plywood formwork is difficult to demould during use, so a release agent is used, and the turnover times of the formwork are usually only 5 to 10 times. The turnover times are low, which all cause costs improve. Contents of the invention [0003] The present invention aims to solve the technical problems of difficult demoulding and low turnover times of existing wooden formwork or plywood formwork during use, and provides a plastic-faced plywood building formwork with high turnover times and a preparation method thereof. [0004] A plastic-faced plywood construction template wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04G9/05B32B37/06B32B37/10B32B37/15
Inventor 卜凡华王清文刘伟王伟宏王海刚
Owner 卜凡华
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