Mold pressing process for high-strength composite OSB plate

A composite board and high-strength technology, applied in the field of boards, can solve problems such as easy cracking and deformation of concave and convex parts, affect the production quality of boards, reduce the qualified rate of boards, etc., and achieve the effect of reducing the difficulty of processing technology, small deformation and long service life

Inactive Publication Date: 2017-11-21
邬满意
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the OSB board includes multiple layers of vertical and horizontal solid wood boards that are hot-pressed into one, although its strength meets the needs of use, its hardness is high. When it is hot-pressed with the panel to form a three-dimensional concave-convex pattern, the concave-convex parts are easy to crack , deformation, which seriously affects the production quality of the plate and reduces the qualified rate of the plate

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A molding process for OSB high-strength composite boards, comprising the steps of:

[0025] a. Ammonia immersion and health preservation of OSB board

[0026] Soak the OSB board in ammonia water for 5 minutes, and then cover and seal the soaked OSB board with a sealing film, allowing the ammonia water to permeate naturally for 65 hours until the ammonia water is evenly distributed in the OSB board;

[0027] b. OSB board molding

[0028] Place the OSB board on the mold of the hot press machine, the upper and lower molds of the mold are attached to the upper and lower sides of the OSB board, the mold temperature is 160 degrees, and after 100s of heat preservation, perform multi-pass compression molding; the reduction of each pass is 2mm , the pressure of each pass is 10MPa, and the pressing is carried out for 2 passes; after pressing and forming, it is naturally cooled to room temperature;

[0029] c. Technology veneer and 0SB board molded into one

[0030] Use a glue ...

Embodiment 2

[0034] A molding process for OSB high-strength composite boards, comprising the steps of:

[0035] a. Ammonia immersion and health preservation of OSB board

[0036] Soak the OSB board in ammonia water for 8 minutes, and then cover and seal the soaked OSB board with a sealing film, allowing the ammonia water to permeate naturally for 72 hours until the ammonia water is evenly distributed in the OSB board;

[0037] b. OSB board molding

[0038] Place the OSB board on the mold of the hot press machine, the upper and lower molds of the mold are attached to the upper and lower sides of the OSB board, the mold temperature is 165 degrees, and multi-pass compression molding is carried out after heat preservation for 120s; the reduction of each pass is 5mm , the pressure of each pass is 12MPa, and the pressing is carried out for 3 passes; after pressing and forming, it is naturally cooled to room temperature;

[0039] c. Technology veneer and 0SB board molded into one

[0040] Use ...

Embodiment 3

[0044] A molding process for OSB high-strength composite boards, comprising the steps of:

[0045] a. Ammonia immersion and health preservation of OSB board

[0046] Soak the OSB board in ammonia water for 10 minutes, and then cover and seal the soaked OSB board with a sealing film, allowing the ammonia water to permeate naturally for 80 hours until the ammonia water is evenly distributed in the OSB board;

[0047] b. OSB board molding

[0048] Place the OSB board on the mold of the hot press machine, the upper and lower molds of the mold are attached to the upper and lower sides of the OSB board, the mold temperature is 170 degrees, and after 150s of heat preservation, multi-pass compression molding is carried out; the reduction of each pass is 7mm , the pressure of each pass is 15MPa, and 4 passes of pressing are carried out; after pressing and forming, it is naturally cooled to room temperature;

[0049] c. Technology veneer and 0SB board molded into one

[0050]Use a gl...

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Abstract

The invention discloses a mold pressing process for a high-strength composite OSB plate. The mold pressing process comprises the following steps of a. soaking an OSB plate with ammonia water and curing; b. carrying out mold pressing shaping on the OSB plate; and c. carrying out mold pressing on decorative fancy plywood veneers and the OSB plate into one piece. According to the composite plate prepared by the process, on one hand, the OSB plate is soaked with the ammonia water, and the ammonia water is capable of softening the OSB plate and dissolving resin and colloid to release an adhesion force, so that cracking during a mold pressing process is avoided, and an initial adhesion force is provided for adhesion for the decorative fancy plywood veneers and the OSB plate, and meanwhile, the ammonia water naturally permeates the OSB plate soaked with the ammonia water in a sealed state, so that permeation uniformity of the ammonia water is ensured; and on the other hand, the decorative fancy plywood veneers are arranged at the two sides of the OSB plate, so that stress conditions of the two sides of the OSB plate can be effectively balanced, and the high-strength composite OSB plate is small in deformation and high in smoothness after the mold pressing shaping, and difficulty of a subsequent machining process for the plate is greatly reduced.

Description

technical field [0001] The invention relates to the field of plates, in particular to a molding process of an OSB high-strength composite plate. Background technique [0002] Composite boards are widely used in the fields of decoration, furniture, and wooden door production. Currently, common composite boards include medium-density fiber veneer panels, and the medium-density fiber veneer panels are hot-pressed into one. Although the board of this structure is simple in structure, it has the disadvantages of low strength, weak waterproof ability, easy deformation, and short service life. [0003] In order to improve the overall strength of the composite board and comprehensively consider the production cost, at present, the OSB board is usually used as the substrate of the composite board. Panels are arranged on both sides of the substrate, and the panel and the substrate are hot-pressed into one. The overall strength of the board with this structure is high and waterproof. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29C51/12B29C51/46B29C51/26B29C51/14
CPCB29C51/12B29C51/14B29C51/26B29C51/46
Inventor 邬满意
Owner 邬满意
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