JPH07118969B2 - Waterproofing method for wood for metal parts storage box - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tree for a metal parts storage box.
The present invention relates to a waterproofing method for a material, and relates to a waterproofing method for impregnating wood with liquid paraffin to prevent water absorption. For example, a tree for a storage box that stores metal parts such as gauge blocks, small precision measuring instruments and their replacement parts, and small tools.
It can be used as a waterproofing method for wood .

[0002]

BACKGROUND ART For example, in a storage box that stores metal parts such as gauge blocks, small precision measuring instruments and their replacement parts, and small tools, the metal parts stored inside are protected against shocks and vibrations during carrying. Wood is often used for the purpose of protection. In general, wood contains a large amount of water, which causes rusting of metal parts, and therefore wood cannot be used as it is when manufacturing a wooden storage box. Therefore, the wood is first dried sufficiently for a long time and then formed into a box shape, and then the waterproof coating film is formed on the surface.

[0003]

When manufacturing a storage box using wood as in the prior art, the wood is dried sufficiently for a long time to form a box, and then a waterproof coating film is formed on the surface. Since it has to be formed, it takes time and labor to form the dry and waterproof coating, which is troublesome to make.

Moreover, even if a waterproof coating film is formed on the surface of a wooden storage box, it does not itself have the function of preventing the stored metal parts from being rusted. Easy to absorb water from. On the other hand, the metal parts to be stored are often handled directly by hand, and the metal parts themselves have a cause of rust. Therefore, in order to prevent the stored metal parts from being rusted, the metal parts must be handled with care.

For example, in the case of a gauge block, after use, immediately remove the ringing, clean the measurement surface, inspect the surface and apply rust-preventive oil, or wrap it with vaporizable rust-proof paper and then store it in a storage box. Must be stored in. In addition, in connection with this, when making a certain reference dimension with a gauge block,
It is necessary to select the gauge block of the combination that is the standard dimension from the set, take it out, wipe off the oil etc. adhering to the surface of these gauge blocks with a cloth piece, and then ring these gauge blocks. .
Therefore, it is necessary to strictly control the handling of the gauge block.

The object of the present invention is to solve the above drawbacks of the prior art and to provide a metal component case which is simple and quick and which can prevent the absorption of water causing rust for a long period of time.
It is to provide a method of waterproofing wood for a storage box .

[0007]

Therefore, according to the present invention,
A method of waterproofing wood for metal parts storage boxes is as follows: liquid wood is immersed in a tank in which liquid paraffin is heated to 100 to 150 ° C. to evaporate water in the wood, and then liquid paraffin for cooling in the tank. It is characterized by adding and quenching.

[0008]

When the wood is dipped in a tank in which liquid paraffin is heated to 100 to 150 ° C. to evaporate the water content in the wood, there is no water in the void and a high temperature gas is present. Then, when low-temperature liquid paraffin is poured into the high-temperature liquid paraffin and rapidly cooled, the gas in the void of the wood contracts, and the liquid paraffin is absorbed in the void. At the same time, the wood itself shrinks and the voids shrink accordingly, so that the voids are filled with liquid paraffin in a compressed state. As a result, it is possible to obtain wood impregnated with no water and without flowing out liquid paraffin. Therefore, it is simple and
Impregnating wood with liquid paraffin in a rapid manner
It is possible to prevent the absorption of water, which causes rust, for a long time.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a waterproofing method according to this embodiment. In the waterproof method, first, liquid paraffin 2
The wood 3 is immersed in the heating tank 1 in which A is heated to evaporate the water content in the wood 3. The wood 3 used here is preferably wood having a large number of air bubbles (in short, the replacement ratio of water and liquid paraffin is high) and containing no substance that causes rust. For example, Katsura, Arda, Poplar and the like are preferable, and among them Katsura and Arda from North America are preferable.

Therefore, the heating temperature of the liquid paraffin 2A may be determined according to the immersion time of the wood 3, but if the heating temperature is less than 100 ° C., the evaporation of water in the wood 3 is not sufficient, and If the temperature exceeds 150 ° C., the surface of the wood 3 is burnt and a good surface condition cannot be obtained. Therefore, about 100 ° C to 150 ° C, preferably 13
Around 0 ° C is good.

Further, the immersion time of the wood 3 may be any time as long as the water in the wood 3 can be completely evaporated. Generally, the time required for the water in wood to completely evaporate depends on the size of the wood, and the longer the length L and the thickness t, the longer the time (see FIG. 2). At this time, if the wood 3 is dipped in a state where its fiber direction is oriented in the vertical direction, the water vaporizes quickly. Therefore, in consideration of these conditions, when the length L = 30 to 40 cm and the thickness t = 1 to 2 cm, the time is generally 5 to 15 hours, preferably about 8 hours.

When the dipping treatment is carried out under such conditions, the moisture in the wood 3 is evaporated by heat, and there is no moisture at all in the void and a high temperature gas is present. For example, 130 ℃
Length L = 30 cm in liquid paraffin 2A heated to
When wood 3 (material: Katsura) having a thickness t = 1 cm was dipped with its fiber direction oriented vertically, the water in wood 3 could be completely evaporated in about 5 hours. In such a state, the liquid paraffin 2A has not yet impregnated the void of the wood 3.

Next, low-temperature liquid paraffin 2B is poured into the high-temperature liquid paraffin 2A to be rapidly cooled. The cooling temperature at this time is preferably a cooling temperature at which contraction of the gas in the void of the wood 3 and the wood itself can be expected. For example, as shown in FIG. 4, when the heating temperature of the liquid paraffin 2A is rapidly cooled from 130 ° C. to 20 ° C., the liquid paraffin 2A,
Since the absorption amount of 2B reaches the saturation point, it is better that the temperature difference is larger than the heating temperature, and the temperature difference is 50 ° C or less, preferably 20
It is better to set it to about ℃.

As a result, when the gas in the void of the wood 3 contracts, the liquid paraffins 2A and 2B are absorbed in the void. At the same time, the timber 3 itself contracts, and the void space shrinks accordingly. As a result, the fluid paraffins 2A and 2B are filled in the void space in a compressed state. as a result,
Since the wood 3 is taken out from the liquid paraffins 2A and 2B in such a state, it is possible to obtain wood impregnated with no water and without flowing out the liquid paraffin.

Therefore, it is possible to prevent the absorption of water, which causes rust, for a long period of time. Moreover, in such a treatment method, pressure is applied to the liquid paraffin 2A and the wood 3
Heated liquid paraffin 2A instead of impregnating it
The water in the wood 3 was evaporated by immersing the wood 3 therein.
After that, just add low temperature liquid paraffin 2B and quench.
Since the liquid paraffin can be impregnated into the wood by a simple method, there is an advantage that the processing apparatus itself can be made simple and inexpensive. Moreover, when cooling, liquid paraffin
While the wood 3 is immersed in 2A, low temperature fluid paraffin
2B is added for rapid cooling, so it is better than natural cooling.
It can be cooled in a short time.

Using the wood 3 produced in this way,
For example, the gauge block storage box 11 as shown in FIG. 4 is formed. For this purpose, first, the storage case 12, the lid case 13 and the partition member 14 are formed of the wood 3. Here, the storage case 12 and the lid case 13 are openably and closably connected to each other via the hinge 15, and the locking tool 1
It is configured such that it can be held in the closed state by 6. Finally, if the partition member 14 is housed in the storage case 12, the storage box main body 11 can be formed.

In use, when the gauge block 21 is stored in the storage box main body 11, the liquid paraffin 2A, 2B impregnated in the respective woods 3 of the storage case 12, lid case 13 and partition member 14 constituting the storage box main body 11 is stored. Forms an atmosphere of paraffin in the storage box main body 11, and a part of the paraffin exudes and adheres to the surface of the gauge block 21 to cover the surface, so that rust is prevented.
This can prevent the absorption of water, which causes rust, for a long period of time, and, as before, after applying rust preventive oil each time it is used, or after wrapping it with vaporizable rust preventive paper, Since it does not need to be stored in the storage box, it does not need to be handled as strictly as before.

In the above embodiment, the example applied to the gauge block storage box has been described, but the present invention is not limited to this, and the present invention can be applied to a storage box for storing other metal parts. For example, it can be used as a storage box for small precision measuring instruments such as a micrometer and a hall tester and their replacement parts, and small tools such as a bite and an end mill.

[0019]

As described above, the metal parts storage box of the present invention
According to the method of waterproofing wood for use , the heated fluid paraffin
After soaking the wood in the water to evaporate the water in the wood,
Easy and quick by adding low temperature liquid paraffin and quenching
Impregnating wood with liquid paraffin in a rapid manner
Therefore, it is possible to prevent the absorption of water, which causes rust, for a long period of time.

[Brief description of drawings]

FIG. 1 is a diagram for explaining a waterproofing method of the present invention.

FIG. 2 is a diagram showing the relationship between the water content of wood and the immersion time of wood.

FIG. 3 is a diagram showing a relationship between an absorption amount of liquid paraffin and a cooling temperature.

FIG. 4 is a perspective view showing a gauge block storage box formed by using wood treated by the method of FIG.

[Explanation of symbols]

 1 Heating tank 2A Liquid paraffin (for heating) 2B Liquid paraffin (for cooling) 3 Wood

Claims (1)

[Claims] 1. A method in which wood is immersed in a tank in which liquid paraffin is heated to 100 to 150 ° C. to evaporate water in the wood, and then liquid paraffin for cooling is added to the tank for rapid cooling. A method for waterproofing wood for metal parts storage boxes .