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Treatment method capable of improving mechanical performance of mongolian scotch pine wood

A treatment method and wood technology, which is applied in wood treatment, wood treatment details, radiation/wave wood treatment, etc., can solve the problems of dry shrinkage and wet expansion, deformation and cracking, oiliness of Pinus sylvestris pine wood, etc., to reduce shrinkage, The effect of improving the bending strength and enhancing the mechanical properties

Inactive Publication Date: 2019-08-02
FUNAN HUIFENG HOUSEHOLD CRAFT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, Pinus sylvestris has fine annual rings, fine and straight wood grains, medium physical properties, and moderate hardness, making it suitable for processing into furniture. , in order to improve the application quality of Pinus sylvestris pine wood, it needs to be treated

Method used

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  • Treatment method capable of improving mechanical performance of mongolian scotch pine wood

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] A treatment method for improving the mechanical properties of Pinus sylvestris sylvestris, comprising the following steps:

[0016] (1) Choose pine wood with a diameter of 20cm and a length of 1m, peel it, and set it aside;

[0017] (2) Water the sylvestris pine wood obtained in step (1), the water temperature is 60°C, and then water the wood with 1°C water after moisture penetration, then dry it at 50°C, and then use the treatment liquid Spray the obtained Pinus sylvestris wood, the spraying amount is 10% of the weight of the wood, transfer it into a closed container after spraying, pump out the air, and introduce carbon dioxide gas to a pressure of 0.5MPa, treat it at 120°C for 20min, let it out After the pressure is taken out, the treatment liquid is sprayed again-carbon dioxide high temperature and high pressure treatment. After 3 cycles, the pressure is released and taken out; the treatment liquid is made of the following raw materials in parts by weight: 10 parts ...

Embodiment 2

[0021] A treatment method for improving the mechanical properties of Pinus sylvestris sylvestris, comprising the following steps:

[0022] (1) Choose pine wood with a diameter of 25cm and a length of 1.2m, peel it, and set aside;

[0023] (2) Water the sylvestris pine wood obtained in step (1), the water temperature is 65°C, and then water the wood with 3°C water after moisture penetration, then dry it at 55°C, and then use the treatment liquid Spray the obtained Pinus sylvestris pine wood, the spraying amount is 11% of the weight of the wood, after spraying, transfer it into a closed container, extract the air, and introduce carbon dioxide gas to a pressure of 0.55MPa, treat it at 124°C for 25min, let it out After the pressure is taken out, the treatment liquid is sprayed again-carbon dioxide high-temperature and high-pressure treatment. After 4 cycles, the pressure is released and taken out; the treatment liquid is made of the following raw materials in parts by weight: 12 p...

Embodiment 3

[0027] A treatment method for improving the mechanical properties of Pinus sylvestris sylvestris, comprising the following steps:

[0028] (1) Select pine wood with a diameter of 30cm and a length of 1.5m, peel it, and set aside;

[0029] (2) Water the sylvestris pine wood obtained in step (1), the water temperature is 70°C, and then water the wood with 5°C water after moisture penetration, then dry it at 60°C, and then use the treatment liquid Spray the obtained Pinus sylvestris pine wood, the spraying amount is 12% of the weight of the wood, after spraying, transfer it into a closed container, extract the air, and introduce carbon dioxide gas to a pressure of 0.6MPa, treat it at 128°C for 30min, let it out After the pressure is taken out, the treatment liquid is sprayed again-carbon dioxide high temperature and high pressure treatment. After 5 cycles, the pressure is released and taken out; the treatment liquid is made of the following raw materials in parts by weight: 15 pa...

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Abstract

The invention discloses a treatment method capable of improving mechanical performance of mongolian scotch pine wood. The mongolian scotch pine wood treated with the method has the advantages that notonly are compressive strength and bending strength improved, but also the volume dry shrinkage rate is reduced and dimensional stability is guaranteed. The mongolian scotch pine wood is watered withhot water firstly and then is irrigated with cold water at 1-5 DEG C, so that gaps among wood fibers can be opened sufficiently, and follow-up active substance intervention is facilitated; a treatingliquid is prepared from urea, sodium laureth sulfate, acrylamide and polyvinyl alcohol and used for treating the wood, impurities such as protein, grease and the like in the wood can be removed, the mechanical performance of the wood is enhanced, and meanwhile, the dimensional stability of the wood is improved; the wood is treated by carbon dioxide gas, and internal grease can be further removed under cooperation with urea, sodium laureth sulfate, acrylamide and polyvinyl alcohol.

Description

technical field [0001] The invention belongs to the technical field of wood treatment, in particular to a treatment method for improving the mechanical properties of pine wood. Background technique [0002] As a commonly used material for industry and life, wood has many excellent qualities, such as high strength-to-weight ratio, less energy consumption in processing, less environmental pollution, recyclability, and good environmental coordination. However, Pinus sylvestris has fine annual rings, fine and straight wood grains, medium physical properties, and moderate hardness, making it suitable for processing into furniture. , in order to improve the application quality of Pinus sylvestris pine wood, it needs to be treated. Contents of the invention [0003] In view of the above problems, the present invention aims to provide a treatment method for improving the mechanical properties of Pinus sylvestris sylvestris. [0004] The present invention is realized through the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/02B27K3/08B27K3/50B27K3/52B27K5/00
CPCB27K3/0207B27K3/08B27K3/50B27K3/52B27K5/003B27K2240/15B27K2240/90
Inventor 丁保忠孙传金丁兰涛杨慧慧
Owner FUNAN HUIFENG HOUSEHOLD CRAFT
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