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Anti-corrosion treatment method for standing timber

A technology of anti-corrosion treatment and live standing wood, which is applied in the direction of wood treatment, wood treatment details, wood processing equipment, etc., to achieve the effect of reducing time and energy consumption

Pending Publication Date: 2022-06-10
INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem of injecting preservatives in standing trees in winter is that the transpiration is weak and there is no strong upward transmission power

Method used

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  • Anti-corrosion treatment method for standing timber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 2. Punch holes in the trunk. At a distance of 1.5m above the ground, the trunk is divided into thirds along the perimeter, and an injection hole is drilled at an angle of 45° downward with a 3mm drill bit. The depth of the injection hole is the radius length of the trunk. If the perimeter of the selected tree is about 16cm at 1.5m, drill injection holes 2.5cm deep at intervals of 5.3cm.

[0025] 3. Inject preservatives. After the drilling is completed, quickly insert the injection needle into the injection hole to ensure that it is sealed and then turn on the injection switch to start injection. Pay attention to observation to ensure that there is no leakage.

[0026] 4. Velocity measurement. Use a gravity scale to weigh the initial weight of the infusion bag, and weigh it every other time, and calculate the flow rate of the preservative according to the weight change and the length of time.

[0027] 5. Drug distribution in living trees: After the injection of preser...

Embodiment 2

[0036] 5. Velocity measurement. Use a gravity scale to weigh the initial weight of the infusion bag, and weigh it every other time, and calculate the flow rate of the preservative according to the weight change and the length of time.

[0037] 6. Drug distribution in living trees: After the injection of preservatives is completed at an interval of 3-5 days, drill the growth cone to observe the distribution of preservatives. It can be found that the copper preservatives are basically diffused evenly. The longer the time, the more uniform the distribution, but there is also loss of chemicals. risk.

[0038] 7. Detection of drug loading. Samples were taken to detect the drug loading of the wood, and the moisture content of the wood was measured at the same time.

[0039] Comparative example 2

Select common Poplar tomentosa boards, dry them and carry out traditional preservative treatment. The type and concentration of preservatives are the same as in Example 1, air-dried, and ...

Embodiment 3

[0049] Table 1 Indoor corrosion resistance test results

[0050] The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

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Abstract

The invention discloses a standing timber preservative treatment method, and relates to the technical field of corrosion prevention, the standing timber preservative treatment method is used for carrying out preservative treatment on usable vertical standing timber in winter at the daily average temperature of 0 DEG C. The standing timber preservative treatment method comprises the steps that an injection hole is drilled in the 1 / 2-2 / 3 height of a trunk of the standing timber, and the injection hole faces the central axis of the trunk of the standing timber and extends obliquely and downwards from top to bottom; the length is equal to the radius of the current height position of the standing tree trunk; the preservative is injected into the standing timber from the injection hole through the infusion hanging bag, the infusion catheter and the injection needle which are connected in sequence, and the infusion hanging bag is located at the position at the height of at least 80 cm above the injection hole. The preservative treatment method is efficient, environment-friendly and energy-saving, the time and energy consumption required for drying the cut wood can be greatly reduced, the problem that the preservative has no transmission power is solved, the preservative can be diffused to all areas in the effective trunk of the standing timber under the gravity of the preservative and the guiding effect of a sap guide pipe in the standing timber, and the effect of the preservative is achieved. And the preservative can be uniformly distributed on the xylem.

Description

technical field [0001] The invention relates to the technical field of wood anticorrosion, in particular to a method for antiseptic treatment of standing trees. Background technique [0002] As a natural organic complex, wood contains nutrients needed by various organisms. Therefore, it is extremely vulnerable to damage by various organisms. In order to prolong the service life of wood, it is necessary to carry out anti-corrosion treatment on wood. Commonly used preservatives are chromium-added copper arsenate (CCA) or ammonia-soluble copper quaternary ammonium preservative (ACQ). CCA preservatives are formulated from arsenic, chromium and copper-containing compounds in a certain proportion. Copper, chromium and arsenic are the elements that play the role of anti-corrosion and insect repellent. Because the toxic elements such as chromium and arsenic contained in CCA preservatives are more harmful to the human body and the environment, they are banned or restricted in many c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K5/00
CPCB27K5/00B27K2240/20
Inventor 江京辉张斌刘俊祥
Owner INST OF WOOD INDUDTRY CHINESE ACAD OF FORESTRY