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Novel ultra-high-pressure flexible semi-wet process for preparing scrimber

An ultra-high pressure, semi-wet technology, applied in the direction of manufacturing tools, wood processing appliances, wood compression, etc., can solve the problems of poor aging resistance of finished reconstituted wood profiles, increased production costs of reconstituted wood, loss of moisture from wood fibers, etc. Achieve the effect of improving anti-aging performance, reducing the possibility of water loss, and reducing the cost of drying

Inactive Publication Date: 2018-09-07
天津主流科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing technology mostly adopts dry pressing technology to prepare recombined wood. Dry pressing requires that the moisture content of raw materials should not be higher than 15%, so the raw materials need to be dried after dipping, which will increase the production cost of recombined wood. , and lead to a large loss of moisture in the wood fiber, making the aging resistance of the finished recombined wood profile worse, and it is easy to crack and deform in subsequent use

Method used

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  • Novel ultra-high-pressure flexible semi-wet process for preparing scrimber

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Effect test

Embodiment 1

[0033] A new ultra-high pressure flexible semi-wet method for preparing recombined wood, including the following steps: material selection-section-slicing-first drying or drying-weighing and packaging-vacuum pressure impregnation-low temperature heating modification- Ultra-high pressure flexible compression molding - curing - demoulding - trimming - inspection - storage;

[0034] The porcelain bamboo in Guangdong is selected as raw material. The porcelain bamboo was felled one day ago. The specifications are: the growth period is 3 years, the diameter is 25mm, there is no serious moth, no mildew and deterioration;

[0035] Remove bamboo green and bamboo yellow after cutting section 3000mm processing, then slice, bamboo material obtains thickness 2mm, width 10mm thin bamboo chips after sectioning, sectioning processing;

[0036] After the first drying or drying treatment, the moisture content of the bamboo chips is: 3%≤moisture content≤15%, with an average moisture content of 9...

Embodiment 2

[0042]A new ultra-high pressure flexible semi-wet method for preparing recombined wood, including the following steps: material selection-section-slicing-first drying or drying-weighing and packaging-vacuum pressure impregnation-low temperature heating modification- Ultra-high pressure flexible compression molding - curing - demoulding - trimming - inspection - storage;

[0043] Choose Cizhu from Sichuan as raw material. The Cizhu was felled 2 days ago. The specifications are: 4 years in growth period, 80mm in diameter, no serious insects, no mildew and deterioration;

[0044] Remove bamboo green and bamboo yellow after section 3200mm is processed, and then slice, and bamboo material obtains thin bamboo chips with thickness 2.5mm and width 25mm after sectioning and sectioning;

[0045] After the first drying or drying treatment, the moisture content of the bamboo chips is: 3%≤moisture content≤15%, with an average moisture content of 8%;

[0046] During the vacuum pressure imp...

Embodiment 3

[0051] A new ultra-high pressure flexible semi-wet method for preparing recombined wood, including the following steps: material selection-section-slicing-first drying or drying-weighing and packaging-vacuum pressure impregnation-low temperature heating modification- Ultra-high pressure flexible compression molding - curing - demoulding - trimming - inspection - storage;

[0052] The moso bamboo from Hunan that was felled 1 day ago was selected as the raw material. The specifications are: the growth period is 6 years, the diameter is 120mm, there is no serious moth, no mildew and deterioration;

[0053] Remove bamboo green and bamboo yellow after the section processing, and then slice, and the bamboo material obtains thin bamboo slices with a thickness of 1mm and a width of 10mm after sectioning and sectioning;

[0054] After the first drying or drying treatment, the moisture content of the bamboo chips is: 3%≤moisture content≤15%, with an average moisture content of 10%;

[...

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Abstract

The invention provides a novel ultra-high-pressure flexible semi-wet process for preparing scrimber. The process comprises the following steps: material selection; sectioning; slicing; primary airingor drying; weighing and packaging; vacuum pressurization and impregnation; low-temperature heating and modification; ultra-high pressure flexible compression molding; curing; demolding; trimming; inspection; and warehousing. During ultra-high pressure flexible compression molding, a lateral oil cylinder performs primary compacting at first and stops compacting at a distance 5 mm away from a standard position; a vertical oil cylinder starts secondary compacting, and when compacting pressure reaches 500 kg / cm<2>, a pressure head stops moving, the pressure is maintained for 3-5 s, and then the pressure head returns by a distance of 3-5 mm; and the lateral oil cylinder continues compacting in place, and then the vertical oil cylinder continues compacting until a pressure is 750-1400 kg / cm<2>.The curing temperature of the curing is 90-115 DEG C. The process provided by the invention not only reduces the cost of drying, but also enhances the anti-aging performance, shear strength, fireproofperformance and density uniformity of the scrimber.

Description

technical field [0001] The invention relates to the technical field of beam column and plate production of wooden structures, in particular to a novel ultra-high pressure flexible semi-wet method for preparing recombined wood. Background technique [0002] Recombined wood is a kind of large-scale wood that is formed by opening various low-quality materials into soft filaments or thin sheets without disturbing the arrangement of wood fibers and retaining the basic characteristics of wood. Density, high strength, wear resistance, new type of wood with natural wood grain structure. As a substitute for high-quality hardwood, reconstituted wood can be used in the manufacture of furniture or products. The existing technology mostly adopts dry pressing technology to prepare recombined wood. Dry pressing requires that the moisture content of raw materials should not be higher than 15%, so the raw materials need to be dried after dipping, which will increase the production cost of r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K9/00B27K3/08B27K5/00B27M1/02B27K5/04
CPCB27K9/002B27K3/08B27K5/001B27K5/04B27K2240/30B27M1/02
Inventor 樊士英樊旭波李若宜
Owner 天津主流科技有限公司
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