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A method for determination of treatment conditions and treatment effect evaluation of wood segments for veneer cutting

A technology for processing conditions and determining methods, applied in the field of wood processing, can solve problems such as inaccurate evaluation and determination of wood segment processing effects, waste of energy, manpower and material resources, and impact on enterprise benefits, so as to save energy for wood segment processing and improve the efficiency of enterprises. efficiency, quality improvement

Active Publication Date: 2022-02-15
INNER MONGOLIA AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Finally, due to the inaccurate evaluation and determination of the wood section treatment effect, it causes waste of energy, manpower and material resources
Affect the quality of veneer (thin wood) and affect the benefits of enterprises

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] For high density wood treatment methods

[0054] s1. Make the test piece: Poplar is used, the age of the tree is 24-32 years, the diameter is between 235-310mm, and the average moisture content of the raw material is 89%;

[0055] Select the raw poplar wood with an average moisture content of 89% to make the test piece, refer to GB / T1929-2009 "Wood Physical and Mechanical Test Material Sawing and Sample Cutting Method" to make the hardness test piece, then soak and saturate it with water, and prepare it Saturated test piece; Refer to GB / T1941-2009 "Test Method for Wood Hardness" to measure the hardness of wood cross-section, string section and radial section; refer to Japanese Industrial Standard | JISZ2101-1994 "Test Method for Wood (8) Shear Test" After the shear strength test piece along the grain is soaked and saturated with water, the saturated test piece is prepared.

[0056] s2, for density higher than 0.5g / cm 3 For wood, select the hydrothermal treatment metho...

Embodiment 2

[0078] For low density wood treatments

[0079] s1. Making test pieces:

[0080] Select the raw wood with a moisture content higher than 80% to make the test piece, refer to GB / T1929-2009 "Wood Physical and Mechanical Test Material Sawing and Sample Cutting Method" to make the hardness test piece, then soak and saturate it, and prepare it Saturated test piece; Refer to GB / T1941-2009 "Test Method for Wood Hardness" to measure the hardness of wood cross-section, string section and radial section; refer to Japanese Industrial Standard | JISZ2101-1994 "Test Method for Wood (8) Shear Test" After the shear strength test piece along the grain is soaked and saturated with water, the saturated test piece is prepared.

[0081] s2, for density below 0.5g / cm 3 The raw materials are frozen, and the relevant parameters are calculated according to the following definition requirements (set different groups of temperature and time conditions for freezing, such as -3°C, -6°C-, -9°C, -12°C; p...

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PUM

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Abstract

The invention discloses a method for determining the treatment conditions of wood segments used for veneer cutting and evaluating the treatment effect, which is characterized in that it comprises making a test piece, and first selects a raw material with an average moisture content of more than 80% to make the test piece, and then prepares the test piece. After the wood is made into a hardness test piece, it is soaked in water and saturated with water, and the water-saturated test piece is prepared; the hardness of the cross-section, string section, and radial section of the wood is measured; Well-saturated specimens; choose the treatment method according to the characteristics of wood density; then determine the treatment temperature through the parameters obtained from the treatment, and finally determine the treatment time; adopt the method of classification treatment to improve its anisotropy according to the characteristics of wood density; through this parameter Directly select the appropriate wood treatment conditions, which can avoid many influencing factors in the indirect selection of treatment conditions, such as mechanical equipment accuracy and adjustment errors, cutting parameters and cutting tools, which is conducive to improving the cutting quality of veneer and veneer.

Description

technical field [0001] The invention relates to the field of wood processing, in particular to a method for determining processing conditions of wood segments for veneer cutting. Background technique [0002] Wood is an anisotropic material, and the anisotropy is mainly reflected in the three tangent directions of the cross section, chord section and radial section. From the perspective of veneer cutting (slicing, rotary cutting), it can reach three directions or two directions. When the properties are similar, the anisotropy of the wood can be reduced, thereby improving the cutting performance of the wood. Therefore, treating wood improves its cutting performance to a certain extent. [0003] At present, the wood section for veneer (thin wood) cutting (in the production of plywood, the log or wood square with a certain length and specification for cutting veneer is called wood section) is mainly treated by hydrothermal treatment (soaking, steaming) method. For wood with l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N33/46G01N25/00G01N3/40G01N3/24
CPCG01N33/46G01N25/00G01N3/40G01N3/24G01N2203/0266
Inventor 青龙王喜明李哲锋
Owner INNER MONGOLIA AGRICULTURAL UNIVERSITY