KR20080088475A - Pail container for receiving welding wire - Google Patents

Abstract

A pail container for receiving a welding wire is provided to secure safety against an electric shock by disposing an insulating material at the upper side of a metal sheet and to improve load carrying capacity by making a bottom plate at high strength. A pail container(1) for receiving a welding wire is composed of a paper outer container(2) forming the side walls and a bottom plate(3) disposed at the bottom of the outer container. The bottom plate comprises a metal sheet(30a) and an insulating material(30b) disposed on at least the upper side of the metal sheet. The insulating material at the upper side of the metal sheet has a layer made of an MDF(Medium Density Fiber Board). The insulating material at the lower side of the metal sheet is a paper plate.

Description

Welding wire storing fail container {PAIL CONTAINER FOR RECEIVING WELDING WIRE}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fail container for accommodating a welding wire, and more particularly to a large capacity welding wire accommodating fail container having a high load capacity.

As a container for storing welding wire such as a solid wire or a flux inlet wire, a cylindrical welding wire storage container (fail container) having a bottom is used (for example, Japanese Patent Application Laid-Open No. 1984-8474, Japanese Patent Publication No. See 1991-34424. In recent years, welding processors such as automobile manufacturers have changed the number of fail containers in order to improve work efficiency in order to save a worker's working time in the welding work and to allow welding work to be performed continuously for a long time. It is required to reduce the Here, in order to reduce the replacement | exchange frequency, lengthening the length of the welding wire accommodated in a fail container, and increasing the quantity of the welding wire (storage wire) accommodated are examined.

Here, in the pail container conventionally used for accommodating a welding wire, as a material of the bottom board which comprises a bottom part, thick paper, such as corrugated paper, and medium density fiberboard (MDF) are used.

In addition, a lower ring radially connecting a plurality of arms constituting the bottom of the container, an upper ring positioned at the top of the container, a body shaft constituting the outside of the container, an intermediate ring connected to the body shaft, and the like can be used for welding. Is connected, and a fail pack for welding wire (fail container) made of a metal material aimed at improving the strength, rigidity and durability has been proposed (see, for example, Japanese Unexamined Patent Application Publication No. 2005-169499).

In this fail container, the strength of a fail container is aimed at by using the metal material which has a predetermined diameter as materials, such as a lower ring, an upper ring, a body shaft, and an intermediate ring mentioned above.

However, in the conventionally used fail container, there existed a problem shown below.

As mentioned above, in order to reduce the replacement | exchange frequency of a fail container, increasing the quantity of a storage wire is examined, but when the quantity of a storage wire is increased, more load is applied to a fail container. However, there is a problem that the material of the bottom plate constituting the bottom portion is a pale container made of thick paper such as corrugated cardboard, which is weak in strength and durability.

In addition, although MDF is excellent in insulation property, in order to obtain sufficient strength with MDF, when the bottom plate is thickened to a sufficient plate thickness, the height of the bottom plate becomes much higher than that of a conventional fail container, and the amount of wire storage increases. Since a volume also becomes large, there existed a problem that defects were easy to occur at the time of conveyance, conveyance, etc.

In addition, when a large amount of metal material is used to improve strength and durability, such as the fail container described in JP 2005-169499 A, the fail container itself becomes heavy, and thus transportability such as transportation and transportation is poor. There existed a problem that handling became inconvenient to fall out and to move in welding work. In addition, in the welding operation, since a high current is handled, there is a problem that safety against electric shock or the like must be considered separately.

This invention is made | formed in order to solve the said problem, The objective is to provide the welding wire storage fail container which made it possible to accommodate a large amount of welding wires by increasing the load capacity of a welding wire storage fail container.

MEANS TO SOLVE THE PROBLEM In order to solve the said subject, the welding wire storage fail container which concerns on this invention is provided with the outer cylinder made of paper which forms the container side wall, and the bottom plate arrange | positioned at the bottom part of this outer cylinder, The said bottom plate is a metal plate, It consists of an insulating material arrange | positioned at least on the upper surface side among the upper and lower surfaces of a metal plate.

According to such a structure, since the bottom plate of the welding wire accommodating pail container is arrange | positioned at least in the upper surface side (namely, the side which contacts the received welding wire) of a metal plate, the structure which can ensure safety against an electric shock etc. can be ensured. At the same time, the bottom plate can be made of high strength. Therefore, the load capacity of a fail container can be improved and a large amount of welding wire can be accommodated. As a result, in the welding work, the replacement frequency of the fail container can be reduced, and the time during the welding work can be saved. In addition, long time welding work, continuous welding work, etc. can be performed, and work efficiency can be improved. Moreover, since the bottom part can be formed in a fail container by the conventional caulking method, productivity of a fail container is not impaired.

Alternatively, the welding wire storage fail container according to the present invention includes a paper outer tube forming a container side wall, and a bottom plate disposed at the bottom of the outer cylinder, wherein the bottom plate is a metal plate, an upper surface side of the metal plate, It consists of an insulating material arrange | positioned at both sides of a lower surface side.

According to such a structure, since the bottom plate of the welding wire storage fail container is made into the structure which arrange | positions the insulating material in the upper surface side and lower surface side of a metal plate, it can insulate the electricity supply in the upper surface side and the lower surface side of a metal plate, and can ensure safety. At the same time, the bottom plate can be made of high strength. Therefore, the load capacity of a fail container can be improved and a large amount of welding wire can be accommodated. As a result, in the welding work, the replacement frequency of the fail container can be reduced, and the time during the welding work can be saved. In addition, long time welding work, continuous welding work, etc. can be performed, and work efficiency can be improved. Moreover, since the bottom part can be formed in a fail container by the conventional caulking method, productivity of a fail container is not impaired.

In the welding wire storage fail container which concerns on this invention, a material is not specifically limited as said insulating material. For example, paper, medium density fiberboard (MDF) and the like can be used.

When MDF is used as the insulating material, the bottom plate can be made light in weight, safety can be ensured, and workability, strength of the bottom plate, and durability can be improved, which is particularly preferable.

In the welding wire storage fail container which concerns on this invention, the said insulating material of the upper surface side and the said insulating material of the lower surface side may be the same material, or may be a different material. Moreover, the structure which consists of a single layer which consists of one material may be sufficient as each said insulating material of an upper surface side and a lower surface side, and may be comprised so that it may consist of several layers which consist of several different material.

In the welding wire storage fail container according to the present invention, the insulating material disposed on the upper surface side of the metal plate includes a layer made of a medium density fiberboard, and the insulating material disposed on the lower surface side of the metal plate is a paper substrate. Can be configured.

According to such a structure, since MDF is used as the insulating material on the upper surface side of the bottom plate to which the welding wire is in contact, safety can be ensured, and workability is improved, and the strength of the bottom plate is lower than that in the case of using only a paper material. Durability is improved. Moreover, since the board | substrate made of paper is used as an insulation material of the lower surface side of the bottom board which a welding wire to accommodate does not contact, a bottom board becomes lighter and economical efficiency improves.

Moreover, in the welding wire storage fail container which concerns on this invention, it is preferable that the said metal plate is a steel plate.

According to such a structure, since the steel plate excellent in strength and rigidity is used as a metal plate, the strength of a bottom plate improves more.

Further, in the welding wire storage fail container according to the present invention, the insulating material disposed on the upper surface side and the lower surface side of the metal plate includes a layer made of a substrate made of paper that has been treated to have water repellency, and the upper surface of the metal plate. At least one of the insulating materials disposed on the side and the lower surface side may include a layer made of a medium density fiberboard. Here, the paper substrate which performed the process which has said water repellency may be what formed the resin layer in at least one surface of the paper substrate.

According to such a structure, in addition to ensuring safety, improving workability, strength, and durability of the bottom plate, it is possible to economically realize that having moisture resistance is also good.

The welding wire storage fail container (henceforth a fail container suitably) which concerns on embodiment of this invention is demonstrated in detail with reference to drawings.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows the welding wire storage fail container which does not have the inner cylinder of this embodiment, The sectional drawing which shows the welding wire storage fail container which does not have the inner cylinder of this embodiment, FIG. The perspective view which shows the welding wire storage fail container provided with the inner cylinder of FIG. 4: is sectional drawing which shows the welding wire storage fail container provided with the inner cylinder of this embodiment, FIG. 5 (a), (b) shows the embodiment of this embodiment. It is sectional drawing which shows the structure of a bottom plate.

(Configuration of the Fail Container)

As shown in FIG. 1, the fail container 1 includes an outer cylinder 2 made of paper forming a container side wall, a bottom plate 3 disposed at the bottom of the outer cylinder 2, and the outer cylinder 2. The lid 4 provided in the upper part of () and the hanging member 5 provided in the outer periphery of this outer cylinder 2 are mainly provided.

Hereinafter, each structure is demonstrated.

[Foreign]

As shown in Figs. 1 and 2, the paper outer cylinder 2 forms a side wall of the fail container 1, is a cylindrical shape constituting the container body, and has a predetermined thickness, thus failing container 1 ) Strength is secured. In the lower end part of the outer cylinder 2, the metal ring 7 for narrow-fixing the bottom plate 3 is provided by the folding part 7b and the fastening part 7a. The metal ring 7 is a thin metal ring made of plated steel or the like whose lower end is folded, and is adhered to the lower end of the outer cylinder 2 to fix the bottom plate 3. Moreover, the upper metal ring 8 for fixing the lid | cover 4 is provided in the upper end part of the outer cylinder 2. As shown in FIG. The upper metal ring 8 is a thin metal ring made of plated steel or the like whose upper end is folded, and is bonded to the upper end of the outer cylinder 2 to fix the lid 4. As for the inner surface of the outer cylinder 2, the inner diameter becomes narrow in the fastening part 7a of the lower end part, and the fastening part 8a of the upper end part, and rigidity is provided. Furthermore, a suspension member 5 is provided on the outer circumference of the outer cylinder 2 for conveyance, conveyance, and the like of the fail container 1.

Here, since the welding vessel is accommodated in the fail container 1, a light and safe structure is required in consideration of transportation and transportation, and a high current is handled in the welding operation. Safety is required. For this reason, the outer cylinder 2 in the fail container 1 of this embodiment is formed from the thick paper from a light weight and electrical insulation viewpoint. In addition, the paper material which forms the outer cylinder 2 is made to have water repellency (water resistance) by coating with a conventionally well-known laminate material etc. Moreover, although it is preferable that the thickness of the outer cylinder 2 (fail container 1) is 2-20 mm, the inner diameter W is 450-700 mm, and the height H is 300-1200 mm, these dimensions are this invention. Changes may be made without departing from the spirit thereof.

[Bottom plate]

As shown in Figs. 1 and 2, the bottom plate 3 has a disc shape constituting the bottom of the fail container 1, and is caulked by a metal ring 7 at the lower end of the outer cylinder 2, It is fixed. As a result, the fail container 1 has a structure in which the bottom plate 3 is held at the lower end of the outer cylinder 2.

As shown in FIGS. 5A and 5B, the bottom plate 3 has a metal plate 30a and insulating materials 30b and 30b disposed on the upper and lower surfaces of the metal plate 30a. It is made of. That is, it is a structure (sandwich structure) which sandwiches a metal material with strength and rigidity between materials with electrical insulation. In addition, it demonstrates here that the insulating material 30b arrange | positioned at the upper surface side and the insulating material 30b arrange | positioned at the lower surface side are the same raw material. In addition, here, as an example of the structure of the bottom plate 3, the thing with the insulating material 30b, 30b arrange | positioned in the upper surface side and the lower surface side of the metal plate 30a is demonstrated, but only the upper surface side insulation material 30b is described. May be arranged (not shown).

Since the bottom plate 3 bears the load of the welding wire accommodated in the fail container 1, intensity | strength is calculated | required. By having such a structure, the strength which can endure the load of a large amount of welding wires can be obtained, without thickening the thickness of the bottom board 3 more than necessary. Moreover, since the metal plate 30a is sandwiched between the insulating materials 30b and 30b, safety can be improved in the welding operation using a high current.

As the metal plate 30a, it is preferable to use a steel plate excellent in strength and rigidity, and examples of the steel plate include stainless steel sheet, carbon steel sheet, low alloy steel sheet, and steel sheet. However, the metal plate 30a is not particularly limited as long as the strength of the bottom plate 3 can be improved, and other than steel sheets such as an aluminum alloy plate and a titanium alloy plate may be used.

The insulating materials 30b and 30b may be thick paper such as corrugated paper, wood, plastic, or the like, but from the viewpoint of weight reduction, strength, durability, and workability, it is preferable to use a medium density fiber board (MDF) that is a fiber board. Do.

MDF (heavy fiber board) is a generic term for plate-shaped products molded into a plate shape by thermo-pressure treatment using wood fibers (fibers) as main raw materials. Since MDF is processed after loosening wood to the fiber level, defects such as burrs, cracks, and rots of wood are removed, and the material is homogeneous. In addition, the surface is hard and smooth, has a high density, and excellent dimensional stability against water and humidity. Moreover, it is easy to process and has the property of little distortion in the width | variety or a longitudinal direction. And since it is light and excellent also in strength and durability compared with thick paper etc., it is preferable as a raw material of the bottom plate 3 (insulating material 30b).

Thus, by using MDF as the insulating materials 30b and 30b, the performance as the bottom plate 3 as described above can be improved. In addition, the bottom plate 3 can be made lightweight, and safety can be secured to improve workability. Furthermore, the strength and durability of the bottom plate 3 can be improved compared with the case of using a paper material.

In addition to MDF, which is a heavy fiber board, fiber boards such as a hard fiber board (hard board) and a soft fiber board (insulation board) may be used.

As for the thickness of the bottom board 3, 1.1-60 mm is preferable. When the thickness of the bottom plate 3 exceeds 60 mm, since the height of the fail container 1 becomes high and the volume by which the amount of storage of the welding wire increases also becomes large, defects are easy to occur at the time of conveyance and conveyance. On the other hand, if it is less than 1.1 mm, since the insulating materials 30b and 30b which sandwich the metal plate 30a become thin, it is preferable to set it as 1.1 mm or more in consideration of safety from a viewpoint of handling a high electric current in a welding operation. .

As for the thickness of the metal plate 30a, 0.1-1.5 mm is preferable. If the thickness of the metal plate 30a is less than 0.1 mm, it is difficult to secure the bottom plate strength that withstands the load of a large amount of welding wire, so that the load resistance is improved as compared with the bottom plate which is not provided with a metal plate thickened with an insulating material. Hard to see the effect. On the other hand, when it exceeds 1.5 mm, the fail container 1 itself becomes heavy, and defects are easy to occur at the time of conveyance, conveyance, etc. In addition, it is preferable to set it as 1.5 mm or less in consideration of safety from a viewpoint of handling a high electric current in a welding operation.

In addition, the thickness of the insulating materials 30b and 30b is preferably 1 mm or more in combination with the thickness of the insulating material 30b on the upper surface side of the metal plate 30a and the thickness of the insulating material 30b on the lower surface side. Here, as shown in Fig. 5A, the upper insulating material 30b and the lower insulating material 30b may have the same thickness, but as shown in Fig. 5B. It is preferable to thicken the thickness of the insulating material 30b on the upper surface side of the metal plate 30a. By thickening the insulating material 30b on the upper surface side, the risk of contact of the contained welding wire with the metal plate 30a can be reduced without increasing the thickness of the bottom plate 3, so that the safety can be further improved. .

Next, a method of arranging the bottom plate 3 in the fail container 1 and configuring the bottom portion of the fail container 1 will be described with reference to FIG. 2 as appropriate.

First, the fastening part 7a is formed in the metal ring 7 of the state in which the lower end is not folded, and the bottom plate 3 is inserted from the lower end of this metal ring 7. Moreover, the bottom plate 3 is produced by adhering the metal plate 30a and the insulating materials 30b and 30b constituting the bottom plate 3 with a conventionally known adhesive or the like. Next, the bottom plate 3 is folded into the fail container 1 by folding the lower end of the metal ring 7 and narrowing the bottom plate 3 with the folded portion 7b and the fastening portion 7a. Install it.

[cover]

As shown in Figs. 1 and 2, the lid 4 is made of metal such as plated steel, and the rigidity is secured by the tightening portion 8a and the folded portion 8b at the upper end of the outer cylinder 2. It is joined with the upper metal ring 8 provided, and is firmly fixed by the metal bands 9 and 9 which consist of plated steel etc.

The lid 4 is covered with the upper end of the outer cylinder 2 when the fail container 1 is transported, transported, or stored. By covering the lid 4 to the fail container 1, the fail container 1 fails because the upper and lower ends are provided with high rigidity by the tightening parts 7a and 8a and the folded parts 7b and 8b. The container 1 can be stacked in multiple stages. In addition, the cover 4 can protect the welding wire accommodated therein from intrusion of moisture or the like.

In addition, when covering the lid 4 to the fail container 1, a spacer made of paper or the like is disposed between the pressing jig (not shown) for pressing the welding wire and the lid 4. It is preferable. As a result, the welding wire coil is loosened due to shaking, vibration, etc. during transportation and conveyance, thereby preventing the welding wire from being disturbed and entangled.

[Hanging member]

The hanging member 5 is a member for hanging up the fail container 1 at the time of conveyance, conveyance, etc. of the fail container 1.

As shown in Figs. 1 and 2, the hanging member 5 is made of metal such as plated steel, and the reinforcing plate 5a is provided on the inner surface and the outer surface of the portion where the hanging member 5 in the outer cylinder 2 is provided. , 5a, and the reinforcing plates 5a and 5a are joined to each other by the rivets 5b and 5b to be fixed to the outer cylinder 2.

In addition, from the viewpoint of safety, the hanging member 5 and the reinforcing plates 5a and 5a are preferably coated with insulating tape (insulating paper) such as PP tape and kraft paper.

3 and 4, the fail container 10 may have a configuration in which the inner cylinder 6 is disposed inside the outer cylinder 2.

[Inner tube]

3 and 4, the inner cylinder 6 is a cylindrical shape having a smaller diameter than the outer cylinder 2 provided inside the outer cylinder 2, and is disposed coaxially with the outer cylinder 2. This inner cylinder 6 fixes the upper cylinder fixing plate part 6a arrange | positioned at the lower end part and the upper part (insulation material 30b arrange | positioned at the upper surface side) of the bottom plate 3 by Hotchkiss A, It is fixed on the bottom plate 3. Although not shown, the welding wire coil is accommodated in the space between the inner cylinder 6 and the outer cylinder 2, and the welding wire coil is arrange | positioned on the bottom plate 3. As shown in FIG. By providing the inner cylinder 6 in the fail container 10 in this manner, it is possible to prevent the welding wire having high rigidity from moving violently in the fail container 10. Moreover, when drawing out a welding wire, it can pull out a welding wire stably.

In addition, similarly to the outer cylinder 2, the inner cylinder 6 of the fail container 10 of the present embodiment is formed of thick paper from the viewpoint of the weight reduction and electrical insulation of the fail container 10.

In addition, when providing the inner cylinder 6, when the inner cylinder fixing pan part 6a is a metal which consists of plated steel etc., it is necessary to arrange | position an insulating material also in the lower surface side of the metal plate 30a. That is, as shown to Fig.5 (a), (b), the structure of the bottom plate 3 is the metal plate 30a and the insulating material 30b arrange | positioned at the upper surface side and the lower surface side of this metal plate 30a, 30b). As described above, the inner cylinder 6 is fixed on the bottom plate 3 by fixing the upper portion of the metal inner cylinder fixing plate portion 6a and the bottom plate 3 by the stapler A. By contacting the inner cylinder fixing plate part 6a and the metal plate 30a, it is possible to prevent the electricity supply from the lower surface side of the metal plate 30a.

As mentioned above, although preferred embodiment of this invention was described, this invention is not limited to the said embodiment, It can change in the range which does not deviate from the range of this invention.

EMBODIMENT OF THE INVENTION Below, another embodiment of this invention is described, referring drawings suitably. 6 (a) and 6 (b) are cross-sectional views showing the structure of a bottom plate according to another embodiment.

In the said embodiment, as shown to FIG.5 (a), (b), the insulating material 30b of the upper surface side (bottom plate top) of the metal plate 30a, and the lower surface side (bottom plate bottom) of the metal plate 30a are shown. Although the same raw material was used for the insulating material 30b of (), as shown to FIG. 6 (a), (b), you may make it another material (insulating material 30b and insulating material 30c). As the structure of such a bottom plate 3a, the insulating material 30b of the upper surface side (bottom plate upper part) of the metal plate 30a consists of MDF, and the insulating material 30c of the lower surface side (bottom plate bottom) of the metal plate 30a is comprised. It is preferable to comprise a board | substrate made of paper.

Since the welding wire is in contact with the insulating material 30b on the upper surface side of the metal plate 30a, by making the insulating material 30b in this portion an MDF excellent in strength and durability, safety can be ensured and workability can be improved. In addition, the strength and durability of the bottom plate 3a can be improved. And by making the board | substrate made of paper the insulating material 30c of the lower surface side which a welding wire does not contact, weight reduction and economic efficiency can be aimed at.

As a board | substrate made from paper, although corrugated paper, a thick paper, etc. can be used, it is not specifically limited, Any thing may be used as long as it is applicable as the insulating material 30c of the bottom board 3a.

Here, as shown to Fig.6 (a), although the upper insulating material 30b and the lower insulating material 30c may be about the same thickness, as shown to Fig.6 (b). It is preferable to thicken the thickness of the insulating material 30b on the upper surface side of the metal plate 30a. As described above, by thickening the insulating material 30b on the upper surface side, the risk of contact of the contained welding wire with the metal plate 30a can be reduced without increasing the thickness of the bottom plate 3, thereby improving safety. It can improve more. And also in this case, when the insulating material 30c of the lower surface side of the metal plate 30a is made into the board | substrate made of paper, weight reduction and economical efficiency can be aimed at.

7 is a cross-sectional view showing the structure of a bottom plate according to another embodiment.

In the bottom plate 3d of this embodiment, the insulating material 30e on the upper surface side of the metal plate 30a is made of a paper substrate which has been treated to have water repellency. And the insulating material of the lower surface side of the metal plate 30a is made into the 2-layered structure of the board | substrate 30e made of paper by which the process was performed so that it might have water-repellency and the insulating material 30b comprised of MDF. Here, the insulating material 30b made of MDF is on the side in contact with the metal plate 30a. According to such a structure, in addition to ensuring safety, improving workability, strength, and durability of the bottom plate, it is possible to economically realize that having moisture resistance is also good.

In the embodiment of FIG. 7, the thickness of the paper substrate 30e on the upper surface side and the lower surface side of the metal plate 30a is preferably about 0.5 mm.

As means for giving water-repellent property to the board | substrate 30e made of paper, the resin layer which consists of a non-moisture-permeable resin or a moisture-permeable resin is formed in at least one surface, for example. That is, as the material of the resin layer, for example, polyethylene resin, polyether resin, nylon resin, polypropylene resin, cellophane resin can be used.

As another embodiment, for example, in the fail container 1 or 10, instead of the hanging member 5, a band-shaped hanging member having a hanging ring formed at both ends is removed from the bottom surface of the fail container 1 or 10. It may be in a form crossed across the main surface. In addition, the raw material, the dimension, etc. of each structure of the fail container 1 or 10 are not limited to the structure demonstrated above, You may change suitably in the range which does not deviate from the meaning of this invention.

As mentioned above, although the best embodiment was demonstrated and demonstrated in detail about the welding wire accommodation fail container which concerns on this invention, the meaning of this invention is not limited to the above-mentioned content. It is needless to say that the contents of the present invention can be widely modified, changed, etc. based on the above description.

1 is a perspective view showing a welding wire storage fail container having no inner cylinder of the present embodiment;

2 is a cross-sectional view showing a welding wire storage fail container having no inner cylinder of the present embodiment;

3 is a perspective view showing a welding wire storage fail container having an inner cylinder of the present embodiment;

4 is a cross-sectional view showing a welding wire storage fail container having an inner cylinder of the present embodiment;

(A), (b) is sectional drawing which shows the structure of the bottom plate of this embodiment,

(A), (b) is sectional drawing which shows the structure of the bottom plate of another embodiment,

Fig. 7 is a sectional view showing the structure of a bottom plate of another embodiment.

Explanation of symbols for the main parts of the drawings

1: welding wire storage pail container 2: outer cylinder

3: bottom plate 4: cover

6: inner cylinder 30a: metal plate

30b: insulation material

Claims (7)

In the welding wire storage fail container, An outer cylinder made of paper forming a container side wall, and a bottom plate disposed at the bottom of the outer cylinder; The bottom plate is made of a metal plate and an insulating material disposed on at least an upper surface side of the upper and lower surfaces of the metal plate. Welded wire storage pail container. The method of claim 1, The bottom plate is made of a metal plate and an insulating material disposed on the upper and lower surfaces of the metal plate. Welded wire storage pail container. The method according to claim 1 or 2, The insulating material comprises a layer made of medium density fiberboard (MDF) Welded wire storage pail container. The method of claim 2, The insulating material disposed on the upper surface side of the metal plate includes a layer made of medium density fiberboard (MDF), and the insulating material disposed on the lower surface side of the metal plate is a paper substrate. Welded wire storage pail container. The method according to claim 1 or 2, The metal plate is a steel sheet Welded wire storage pail container. The method of claim 2, The insulating material disposed on the upper surface side and the lower surface side of the metal plate includes a layer made of a substrate made of paper which has been treated to have water repellency, and at least one of the insulating materials disposed on the upper surface side and the lower surface side of the metal plate has a medium density. A layer comprising a fiberboard (MDF) Welded wire storage pail container. The method of claim 6, The paper-made board | substrate with which the process which has the said water repellency is formed in which the resin layer was formed in at least one surface of the paper-made board | substrate. Welded wire storage pail container.

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