JPH08119711A - Structure for reinforcing rock wool board and method for reinforcing - Google Patents

Abstract

PURPOSE: To enable the use of a rock wool board as a building material such as a floor covering material or a wall covering material requiring the strength by reinforcing the rock wool board while making the most of the characteristics thereof by forming resin reinforcing parts passing from the front to the back surfaces of the rock wool board therein. CONSTITUTION: A resin is injected into a rock wool board 1 so as to pass from the front to the back surfaces thereof and the resin is then cured to form resin reinforcing parts 2, which are dotted over nearly the whole surfaces of the rock wool board 1 at this time. Furthermore, resin skin layers 3 applied to the whole front and back surfaces of the rock wool board 1 or surface layers prepared by laminating a surface material such as plywood may be formed thereon to integrally connect the resin skin layers 3 or surface layers to columnar resin reinforcing parts 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure and a method for reinforcing rock wool board for use as floor material, wall material and the like.

[0002]

2. Description of the Related Art Generally, rock wool board is an inexpensive material, has heat insulating properties, soundproof properties, and fireproof properties, and is widely used as a ceiling material. However, the rock wool board is weak in compressive strength and bending strength and cannot be used for a member such as a floor material or a wall material that requires strength.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to reinforce a rock wool board while making the best use of the characteristics of the rock wool board. (EN) It is intended to provide a rock wool board reinforcing structure and a reinforcing method that can be used for building materials such as necessary floor materials and wall materials.

[0004]

In order to achieve the above object, the first feature of the reinforcing structure of the rock wool board of the present invention is as follows.
It is characterized in that a rock wool board is provided with a resin reinforced portion in which a resin is injected and cured so as to reach the front and back surfaces of the board. The second feature of the reinforcing structure is that resin is injected into the rock wool board so as to reach the front and back surfaces of the rock wool board, and a columnar resin reinforcing portion is provided. It is characterized by being scattered over.

The third feature of the reinforcing structure is that a resin skin layer having resin coated on the entire surface or a surface layer having a surface material such as plywood attached is formed on the front and back surfaces of the rock wool board. It is characterized in that the layer and the columnar resin reinforcing portion are integrally connected. Fourth reinforcement structure
The feature is that a real part such as a female fruit or a male fruit is provided on the edge of the rock wool board, and a real reinforcing part obtained by impregnating and hardening a resin is provided on the whole real part.

The fifth feature of the reinforcing structure is that the resin of the resin skin layer or the resin reinforcing portion is a resin that is resistant to compression, and the resin of the actual reinforcing portion has a high nail holding property and is hard to be nailed. It is characterized by using a resin having a crack prevention property and high water resistance. The first feature of the method for reinforcing a rockwool board of the present invention is that a large number of holes for resin injection are perforated in the rockwool board over substantially the entire surface, and then the resin is injected into the holes and the resin is cured. It is characterized in that a columnar resin reinforcing portion is formed.

A second feature of the reinforcing method is that a hole for resin injection is punched in the rock wool board and at the same time, resin is injected into the hole to form a columnar resin reinforcement portion obtained by curing the resin. To do. The third feature of the reinforcement method is that
Place a screen with many through holes on the rock wool board, apply resin from the screen by screen printing method, inject the resin into the rock wool board through the through holes, and cure the resin It is characterized in that a resin reinforcing portion is formed.

A fourth characteristic of the reinforcing method is that a large number of holes for resin injection are formed in the rock wool board over substantially the entire surface, and a groove wider than the diameter of the hole is formed on at least one surface of the rock wool board. Form and connect the hole and the groove,
It is characterized in that resin is injected into the hole and the groove and a resin reinforcing portion is formed by curing the resin. Furthermore, the fifth feature of the reinforcing direction is that a large number of fine holes are formed in the real part of the rock wool board, and resin is injected into this part by depping.

[0009]

According to the first feature of the reinforcing structure, the rock wool board is reinforced by the resin reinforcing portion by injecting and hardening the resin so as to reach the front and back surfaces of the board. As a result, the compression strength and bending strength of the rock wool board can be improved.

According to the second feature of the reinforcing structure, resin is injected into the rock wool board so as to reach the front and back surfaces of the board to be cured, and a columnar resin reinforcing portion is provided, and the columnar resin reinforcing portion is locked. By making it scattered over almost the entire surface of the wool board, it is possible to reinforce the columnar resin reinforcing portion over the entire surface of the rock wool board to improve especially the compression strength, and also to make the columnar resin reinforcing portions scattered. As a result, the amount of resin used can be reduced compared to impregnating the whole with effective reinforcement, and it can be reinforced so as not to impair the soundproofing and heat insulating properties originally possessed by rockwool boards.

According to the third feature of the reinforcing structure, the resin skin layer is formed by coating the entire surface of the rock wool board with a resin or a surface layer having a surface material such as plywood. Alternatively, by integrally connecting the surface layer and the columnar resin reinforcing portion, the columnar resin reinforcing portion can mainly improve the compressive strength, and the resin skin layer and the surface layer can mainly improve the bending strength. And bending strength can be improved.

Further, according to the fourth feature of the reinforcing structure, a real part such as a female fruit or a male fruit is provided on the edge of the rock wool board,
By providing an actual reinforcing portion that is impregnated and cured with a resin over the entire actual portion, it is possible to enhance the strength by reinforcing the actual portion that serves as a joint when used as a building material. Further, according to the fifth feature of the reinforcing structure, a resin that is resistant to compression is used as the resin of the resin skin layer and the resin reinforcing portion, and the resin of the actual reinforcing portion has a high nail holding property and is excellent in nailing. By using a resin having a crack preventing property and a high water resistance, a building material having excellent performance can be obtained.

Further, according to the first feature of the reinforcing method, the rock wool board is formed with a large number of holes for resin injection over substantially the entire surface, and then the resin is injected into the holes and the resin is hardened. By forming the resin reinforcing portion, the resin can be easily and surely injected to form the columnar resin reinforcing portion, and the rock wool board can be easily reinforced. According to the second feature of the reinforcing method, the hole for resin injection is formed in the rock wool board, and at the same time, the resin is injected into the hole to form a columnar resin reinforcement portion in which the resin is cured, thereby forming the hole The rock wool board can be easily reinforced by simultaneously perforating and injecting resin.

According to the third feature of the reinforcing method, a screen having a large number of through holes is placed on a rock wool board, and a resin is applied from above the screen by a screen printing method to lock the through holes. By injecting the resin into the wool board and forming the resin-hardened columnar resin-reinforced portion, the resin can be injected by the screen printing method to form the resin-reinforced portion, so that the rock wool board can be easily reinforced.

Further, according to the fourth feature of the reinforcing method, a large number of resin injection holes are bored over substantially the entire surface of the rock wool board, and at least one side of the rock wool board is wider than the diameter of the holes. By forming a groove to connect the holes to each other, injecting resin into the holes and grooves and forming a resin-reinforced portion by hardening the resin, the compression strength and bending strength of the rock wool board are improved. Can be reinforced.

Further, according to the fifth feature of the reinforcing method, a large number of fine holes are formed in the real part of the rock wool board,
By injecting the resin into this portion by depping, the resin can be simply and surely injected into the real portion to reinforce the real portion.

[0017]

EXAMPLE A rock wool board 1 is, for example, a rectangular plate material. A resin is injected into the rock wool board 1 so as to penetrate both sides, and the resin is hardened as shown in FIG. Has been formed. In the case of this embodiment, resin is injected so as to be scattered over substantially the entire surface of the rock wool board 1, and a large number of columnar resin reinforcing portions 2a are formed at substantially equal intervals. A resin skin layer 3 is applied and formed on the entire upper and lower surfaces of the rock wool board 1, and the resin skin layer 3 and the resin reinforcing portion 2a are integrally connected. That is, the resin skin layer 3 is also applied and integrated together when the resin reinforcing portion 2a is formed. In the case of the embodiment of FIG. 2, a surface material 4 such as plywood is laminated on the upper surface side instead of the resin skin layer 3 and is integrated with the resin of the resin reinforcing portion 2a. The rock wool board 1 reinforced with the resin as described above is used, for example, as a floor material, and is surface-finished on the resin skin layer 3 on the upper surface and on the surface material 4. Also, as in the embodiment of FIG. 3, there is also one in which the cushion material 5 is laminated on the lower surface of the resin skin layer 3 on the lower surface side so that it can be directly attached. When the resin skin layer 3 is formed, a reinforcing material such as glass cloth, glass paper, or non-woven fabric may be embedded to increase the strength. The resin that is injected to form the resin reinforcing portion 2 or applied to form the resin skin layer 3 as described above is a thermosetting resin such as urethane resin, phenol resin, and melamine resin, and is in a liquid state. It is injected or coated with, and heated and pressed to cure.

When the rock wool board 1 is used as a floor material, a real portion 6 such as a female seed 6a or a male seed 6b as a connecting portion is provided at an end edge thereof. The actual reinforcing portion 7 is formed by impregnating the actual portion with resin.
When the real part 7 is reinforced, it is performed by dipping the edge of the rock wool board 1 into the resin. However, if the resin-impregnated portion is perforated with innumerable fine holes and then impregnated, it is sufficiently impregnated and solidified. Reinforced. The resin to be impregnated to form the actual reinforcing portion 7 is a thermosetting resin such as urethane resin, phenol resin, and melamine resin, which is impregnated in a liquid state and is heated and pressed to be cured.

As the thermosetting resin to be injected to form the resin reinforcing portion 2 or the actual reinforcing portion 7 as described above, urethane resin, phenol resin, melamine resin or the like is used. When using, the resin strength is high and a strong compressive strength can be obtained, and when the wooden surface material 4 such as plywood is stuck, it can be firmly integrated. At this time, urethane foam is used as the urethane resin (foaming pressure 3 to 5 kg / c
m ² ) may be used. Further, when a phenol resin is used as the resin, nonflammability and fire resistance are obtained, and since the viscosity is low, it easily penetrates. Further, when using a phenol resin or a melamine resin, it is better to use a solvent-based resin (a water-based resin cannot be sufficiently impregnated). Examples of the solvent include methanol, ethanol and ethyl acetate in the case of phenolic resin, and butanol in the case of melamine resin. The rock wool board 1 has a columnar resin reinforcement 2
When forming a, the resin may be injected after forming a hole in the rock wool board 1, the resin may be injected at the same time when the hole is formed, or the resin may be injected so as to penetrate.

When forming the resin reinforcing portion 2, a large number of holes 8 are punched in the rock wool board 1 as shown in FIG.
A long groove 9 is provided on at least one surface of the rock wool board 1 and the holes 8 and 9 are communicated with each other. A resin is injected into the holes 8 and 9 to cure the resin, and a columnar resin reinforcement portion 2a and a belt-shaped resin reinforcement are provided. The resin reinforcing portion 2 having a substantially T-shaped cross section in which the portions 2b are integrally connected may be formed. When such a resin reinforcing portion 2 is formed, not only the compressive strength but also the bending strength can be improved.

When the columnar resin reinforcing portions 2a are formed on the rock wool board 1, they may be arranged in alignment as shown in FIG. 5 (a) or in a staggered arrangement as shown in FIG. 5 (b). May be provided in the array. Further, the real parts 6 such as the female seeds 6a and the male seeds 6b are formed on the edge of the rock wool board 1, and the real parts 6 are formed.
The actual reinforcing portion 7 is formed by impregnating the resin with the resin. In this case, even if the actual portion 6 is mechanically processed first and then impregnated with the resin to reinforce, the resin is not applied to the edge of the rock wool board 1. Alternatively, the actual portion 6 may be processed by mechanical processing after being impregnated with. Further, as the resin for forming the resin reinforcing portion 2 and the resin skin layer 3 on the rock wool board 1, a resin resistant to compression (urethane resin, phenol resin, etc.) is used, and as a resin for forming the actual reinforcing portion 7 of the actual portion 6. It is preferable to use a water-resistant resin (modified phenolic resin or the like) that has a nail retaining property, a crack preventing property even when nailing, and a water resistant property.

Next, a method for injecting or impregnating the rock wool board 1 with resin will be described. FIG. 6 shows an apparatus for punching holes 8 for injecting resin into the rock wool board 1. FIG. 6 (a) shows that the rock wool board 1 is pressed by the lower press platen 10 and the upper press platen 11, and a large number of punching rods 12 are formed from the lower surface of the upper press platen 11.
A plurality of holes 8 are formed in the rock wool board 1 with a hole-piercing bar 12. When making a hole by pressing, the lower press platen 10 may be degassed.
FIG. 6B shows a pair of upper and lower perforating rolls 13 through which the rock wool board 1 is perforated, and holes 8 are perforated. You can open the hole 8.

FIG. 7 shows an apparatus for injecting resin after making a hole 8 in the rock wool board 1. A large number of inlets 16 are provided on the lower surface of the rectangular parallelepiped filling container 15 corresponding to the holes 8 of the rock wool board 1, and the filling container 15 is filled with a liquid resin 17. A sponge 18 for preventing liquid dripping is provided in the lower portion of the filling container 15, and a pump 19 for pressurization is connected to the filling container 15. Then, when the rock wool board 1 is supplied to the base plate 20 below the filling container 15, the filling container 15 is lowered, the inlet 16 is inserted into the hole 8, and the pump 19 pressurizes the filling container 15. Resin 17 in hole 8
And the resin 17 is heat-cured to form a columnar resin reinforcing portion 2a. When injecting the resin 17, the base plate 20 side may be degassed.

FIG. 8 shows another example of the device for injecting the resin 17 into the hole 8 of the rock wool board 1. Fig.8 (a) is a roll coater system rock wool board 1
The resin 17 is injected into the upper and lower coating rolls 2
1, the resin 17 is applied to both sides of the rock wool board 1 and the resin is injected into the holes 8 of the rock wool board 1. In this case, the resin skin layer 3 is formed together with the columnar resin reinforcing portion 2a. 2 in FIG. 8 (a)
2 is a doctor roll and 23 is a paint pan. FIG.
(B) is for injecting the resin 17 into the rock wool board 1 by a flow coater method. By flowing the resin 17 down from the belt-shaped nozzle portion 24, the resin 17 is applied to the upper surface of the rock wool board 1 and holes are formed. Resin 17 on 8
Is to be injected. Also in this case, the resin skin layer 3 is formed together with the columnar resin reinforcing portion 2a. Further, when the resin 17 is applied by this method, if the resin 17 is degassed from below, the resin 17 is injected more smoothly. The resin 17 can be similarly applied by a spray coater method other than the above method.

FIG. 9 shows another example of injecting the resin 17 into the rock wool board 1. In this case, the same filling container 15 as in the example of FIG. 7 is arranged above the rock wool board 1, and below the rock wool board 1, an impregnation pan 25 containing the resin 17 is arranged.
The resin 17 is injected into the hole 8 of the rock wool board 1 from the injection port 16 of No. 5, and the lower surface of the rock wool board 1 is dipped in the impregnation pan 25 to impregnate the resin on one side. In this case, resin is injected into the hole 8 of the rock wool board 1 to form the resin reinforcing portion 2a and the resin skin layer 3 is formed on the lower surface.

FIG. 10 shows another example of the method of injecting the resin 17 into the rock wool board 1. In the case of the present embodiment, the resin 17 is injected by the screen printing method, and the resin is injected into the rock wool board 1 without forming the holes 8 to form the columnar resin reinforcing portion 2a. In the case of FIG. 10A, a screen 26 having many holes is placed on the rock wool board 1 and the resin 17 is applied with a spatula 27. In FIG. 10B, a screen 26 having many holes is placed on the rock wool board 1 and the screen 2
The coating roll 28 is used to apply the coating from above 6. By applying the resin 17 by the screen printing method in this way, the rock wool board 1 is made to pass through the holes of the screen 26.
The column-shaped resin reinforcing portion 2a is formed by impregnating the resin 17 with the resin 17, impregnating the resin so as to penetrate the rock wool board 1, and curing by heating. Resin 1 used when the resin is impregnated by the screen printing method in this way
7 is preferably a resin having a low viscosity, and a solvent type phenol resin is preferable.

FIG. 11 shows an example of a method of impregnating the real portion 6 of the edge of the rock wool board 1 with resin. In this case, the resin injection pipe 29 is located in the real part 6,
The resin 17 is discharged from the injection pipe 29, the rock wool board 1 is conveyed, and the resin 17 is applied to the real part 6 so that the resin 17 is impregnated with the permeability of the resin 17. When the resin 17 to be impregnated is a urethane resin, a mixture of liquid A and liquid B is discharged and impregnated. The resin 17 is impregnated and then heated to be cured. FIG. 12 shows another example in which the edge of the rock wool board 1 is impregnated with the resin 17. In this case, the resin 17 of the resin container 30 is applied to the end surface of the rock wool board 1 by using the umbrella-shaped roll 31, and is impregnated with the permeability of the resin 17.

FIG. 13 shows another example in which the edge of the rock wool board 1 is impregnated with the resin 17. FIG.
In (a), the edge of the rock wool board 1 is covered with a resin pan 32.
The resin 17 is impregnated by dipping the resin 17. In FIG. 13 (b), the outflow prevention weirs 33 are provided on both sides of the upper end of the rock wool board 1 which is vertically stood.
And the resin 17 is injected from the injection pipe 34. FIG.
No. 4 is a combination of both FIG. 13 (a) and FIG. 13 (b), in which the lower end of the rock wool board 1 which is vertically stood is impregnated by depping and the upper end of the rock wool board 1 is impregnated by injection. You can do it.

FIG. 15 shows another example in which the edge of the rock wool board 1 is impregnated with the resin 17, and the resin is impregnated with a two-liquid type such as urethane resin. As shown in FIG. 15 (a), the edge of the rock wool board 1 is dipped into the resin pan 35 to impregnate the liquid A, and then as shown in FIG. 15 (b), the resin pan 36 is dipped to impregnate the liquid B. 15C, the solution A and the solution B are impregnated and cured by heating. FIG. 16 shows another example in which the resin 17 of the rock wool board 1 is impregnated. The rock wool board 1 is erected and held on a vertically long holder 37, and the resin 17 can be injected under pressure from an injection port 38 provided above and below for impregnation.

FIG. 17 shows an example of a step of impregnating the rock wool board 1 with resin by depping. The rock wool board 1 is set upright, and is dipped in a resin pan 39 to impregnate one end of the rock wool board 1 with the resin. Then, the rock wool board 1 is inverted by 180 ° and the other end of the rock wool board 1 is inverted. Edge of resin pan 3
9 is dipped to impregnate the resin, and then it is laid horizontally and conveyed. In the case of the present embodiment, one rock wool board 1 is treated, but as shown in FIG. 18, a process of impregnating the resin is performed in the same process as FIG. 17 with a plurality of rock wool boards 1 stacked. May be.

FIG. 19 shows another example in which the entire circumference of the edge of the rock wool board 1 is impregnated with resin. FIG.
A base plate 40 on which the rock wool board 1 is placed as shown in (a)
Is provided with a degassing port 41 corresponding to the edge of the rockwool board 1, and an inlet 42 is provided above the base plate 40 corresponding to the edge of the rockwool board 1,
A resin supply pipe 43 is communicated with the inlet 42. By injecting the resin from the injection port 42 and deaerating from the degassing port 41, the resin is impregnated into the entire circumference of the edge of the rock wool board 1 as shown in FIG. 19B. .

FIG. 20 shows an example in which when the columnar resin reinforcing portion 2a is formed on the rock wool board 1, the resin is injected at the same time when the holes 8 are formed. A sponge 18 is internally provided at the bottom of the filling container 15, and a resin 17 is placed inside the filling container 15.
Is loaded so that the resin can be supplied under pressure by air pressure. A large number of press-fitting needle bodies 45 each having a hollow interior are provided so as to project downward from the bottom surface of the filling container 15.
The tip of 5 is sharp. Inside the press-fitting needle body 45 is the filling container 15.
A plurality of injection holes 46 are provided in the press-fitting needle body 45.
have. Then, the filling container 15 is lowered with the rock wool board 1 placed on the base plate 47, and the press-fitting needle body 45 is press-fitted into the rock wool board 1 to make a hole,
At the same time, the resin 17 is injected from the injection hole 46 of the press-fitting needle body 45 to inject the resin 17 into the rock wool board 1.
After the resin 17 is injected into the rock wool board 1, it is heat-cured to form the columnar resin reinforcing portion 2a.

FIG. 21 shows a method of injecting a resin into the rock wool board 1 and then heating and pressing the resin to cure it.
The resin is heated and cured by passing the rock wool board 1 through a double conveyor composed of an upper conveyor 50 and a lower conveyor 51. Rock wool board 1
A release film 52 is interposed between the upper conveyor 50 and the lower conveyor 51.

Next, the performance of the rock wool board 1 reinforced with resin will be described. Table 1 shows the measured compressive strength, bending strength, etc. of a plurality of prototype samples. Table 1
Sample A is a urethane resin for comparison (however, urethane foam). Sample B is shown in FIG.
As shown in (a), only the resin skin layer 3 of urethane resin is provided on the surface of the rock wool board 1. Sample C is one on rock wool board 1 as shown in Fig. 22 (b).
A non-penetrating hole of mmφ was punched at a rate of 5%, and a urethane resin was injected therein and cured. As shown in FIG. 22 (c), sample D is one in which a 3 mmφ through hole is punched in the rock wool board 1 at an opening ratio of 5%, and a urethane resin is injected therein and cured. Sample E is 3 on the rock wool board 1 as shown in Fig. 22 (d).
A mmφ through hole is punched at a rate of 5%, a groove is formed in one side of the rock wool board 1 in the longitudinal direction, and urethane resin is injected into the through hole and the groove to be cured. Sample F is obtained by punching through holes of 10 mmφ in rock wool board 1 at an opening ratio of 5% and injecting urethane resin to cure the resin. The urethane resin used is a foam type urethane resin manufactured by Nippon Polyurethane Chemicals Co., Ltd., and the product number is EXH-1506. In addition to this, a foam type urethane resin manufactured by Nippon Polyurethane Kasei Co., Ltd. with a product number EXH-1508 or a non-foam type urethane resin manufactured by Nippon Polyurethane Kasei Co., Ltd. with a product number HM-5320 is also used. it can.

[0035]

[Table 1]

From the results shown in Table 1, it can be seen that when the resin is injected and reinforced, the rock wool board has sufficient compressive strength and bending strength, and can be used as a floor material. The compression strength of rock wool board not reinforced with resin is 3.22 Kg
It is about / cm ² , and it can be seen that the compressive strength increases several times when reinforced with a resin. Further, Table 2 shows the results obtained by measuring the compressive strength and the bending strength under the conditions different from the above. As shown in FIG. 23 (a), the sample configuration A is such that the rock wool board 1 having a thickness of 12 mm is perforated with 2 mmφ through holes vertically and horizontally at a pitch of 30 mm, and the through hole is filled with 50 g / 1 ′ of phenol resin.
It was injected at a ratio of × 1 ′ and cured by heating. Sample configuration B has a thickness of 12 mm as shown in FIG.
2mmφ through hole 30mm on rock wool board 1
Punch the resin vertically and horizontally with a pitch of 5
Rockwool board 1 injected at a rate of 0g / 1'x1 '
40 g / 1 '× 1' of a phenolic resin was applied to both surfaces of the above and cured by heating. As shown in FIG. 23 (c), the sample configuration C is such that the rock wool board 1 having a thickness of 12 mm is perforated with 2 mmφ through holes vertically and horizontally at a pitch of 30 mm, and the through holes are filled with a phenol resin at a rate of 50 g / 1 ′ × 1 ′. In this case, the non-woven fabric 54 impregnated with phenol resin is laminated on both sides of the rock wool board, and is cured by heating. Sample configuration D has a thickness of 1 as shown in FIG.
The edge of a 2 mm rock wool board 1 was impregnated with a phenol resin at a rate of 125 g / 1 ′ × 1 ′, and was heated and cured. As the phenol resin, product numbers CJ2140 and CJ2140YD2 manufactured by Matsushita Electric Works Ltd.
0, CJ2140YD40 was used. CJ2140Y
D20 and CJ2140 YD20 are epoxy-modified phenolic resins, and YD20 has an external epoxy addition amount of 20.
%, YD40 is the external addition amount of epoxy of 40%. This epoxy-modified phenol resin has improved toughness in order to cover the brittleness of the phenol resin.

[0037]

[Table 2]

From the results shown in Table 2, it can be seen that when the resin is injected and reinforced, the rock wool board has sufficient compressive strength and bending strength, and can be sufficiently used for flooring and the like. However, Table 2
The density is the density of rock wool and the unit is Kg / m ³
Is. The unit of compressive load is Kgf, the unit of compressive strength is Kg / cm ² , the unit of compressive Young's modulus is Kg / cm ² ,
Unit of breaking load is Kgf, unit of bending strength is Kg / cm
² , the unit of bending Young's modulus is Kg / cm ² , and the unit of sawing resistance is Kgf.

Next, Table 3 shows the measured relationship between the arrangement of resin reinforcing portions 2 provided on the rock wool board 1, pitch, and resin filling amount. In sample A, through holes having a diameter of 2 mm and having a pitch P of 30 mm are punched in the square arrangement shown in FIG. 24A, and urethane resin is filled in the through holes and cured. Sample B is a square array of FIG. 24 (a) in which 2 mmφ through holes are punched so that the pitch P is 35 mm, and the through holes are filled with urethane resin and cured. In Sample C, 2 mmφ through-holes were punched so that the pitch P was 35 mm in the arrangement of equilateral triangles in FIG. 24B, and urethane resin was filled in the through-holes and cured. In sample D, 2 mmφ through-holes were punched in a regular triangular arrangement shown in FIG. 24 (b) so that the pitch P was 39 mm, and urethane resin was filled into the through-holes and cured. In sample E, 2 mmφ through-holes were punched so that the pitch P was 39 mm in the arrangement of equilateral triangles in FIG. 24B, and urethane resin was filled into the through-holes and cured. The specific gravity of rock wool board 1 is 0.3
It is 86 g / cm ³ .

[0040]

[Table 3]

From the results shown in Table 3 above, it is possible to reduce the cost by choosing the arrangement and pitch that can effectively reinforce by using the minimum amount of resin used.

[0042]

As described above, according to the present invention, the rock wool board is provided with the resin reinforced portion which is injected and cured to reach the front and back surfaces of the board. Therefore, the rock wool board can be reinforced with the resin reinforced portion. Thus, the compressive strength and bending strength of rock wool board can be improved.

According to the second aspect of the present invention, resin is injected into the rock wool board so as to reach the front and back surfaces of the board, and the resin is cured to provide a columnar resin reinforcing portion and the columnar resin reinforcing portion. Since the parts are scattered over almost the entire surface of the rockwool board, it is possible to improve the compressive strength by reinforcing with columnar resin reinforcements over the entire surface of the rockwool board. Compared to impregnating the whole with resin by scattering it, the amount of resin used can be reduced and it can be effectively reinforced, and it does not impair the soundproofing and heat insulating properties originally possessed by rockwool board. It can be reinforced.

Further, in the invention according to claim 3 of the present invention, a surface layer formed by applying a surface material such as a resin skin layer or a plywood coated with resin on the front and back surfaces of the rock wool board is formed. Since the resin skin layer or surface layer and the columnar resin reinforcement part are integrally connected, the columnar resin reinforcement part can mainly improve the compression strength, and the resin skin layer and the surface layer mainly improve the bending strength. Therefore, the compressive strength and bending strength can be sufficiently improved.

Further, in the invention according to claim 4 of the present invention, a real portion such as a female seed and a male seed is provided on the edge of the rock wool board, and the entire real portion is impregnated and cured with a resin for actual reinforcement. Since the part is provided, the real part which becomes the joint part when used as a building material can be reinforced to improve the strength. Further, in the invention according to claim 5 of the present invention, a resin that is resistant to compression is used as the resin of the resin skin layer or the resin reinforcing portion, and the resin of the actual reinforcing portion has high nail retention and A resin with high water resistance, which has the property of preventing cracking during hammering, can be used to strengthen the structure, improve nailing properties and water resistance in the required areas, and provide a building material with excellent performance. It is a thing.

Further, in the invention according to claim 6 of the present invention, a large number of holes for resin injection are perforated substantially all over the rock wool board, and then the resin is injected into the holes and the resin is cured. Since the columnar resin reinforcing portion is formed,
The resin can be easily and surely injected into the rock wool board to form a columnar resin reinforcing portion, so that the rock wool board can be easily reinforced.

Further, in the invention according to claim 7 of the present invention, a hole for resin injection is formed in the rock wool board, and at the same time, resin is injected into the hole to form a columnar resin reinforcing portion obtained by curing the resin. Therefore, it is possible to easily reinforce the rock wool board by simultaneously punching holes and injecting resin. Further, in the invention according to claim 8 of the present invention, a screen provided with a large number of through holes is placed on a rock wool board, and a resin is applied from above the screen by a screen printing method to lock the through holes. Resin is injected into the wool board, and the resin is hardened to form a columnar resin reinforcement, so it is possible to inject resin by screen printing to form the resin reinforcement and easily reinforce the rock wool board. Is.

Further, in the invention according to claim 9 of the present invention, a large number of holes for resin injection are perforated over substantially the entire surface of the rock wool board, and at least one surface of the rock wool board has a diameter larger than that of the hole. A wide groove is formed to connect the holes to each other, and resin is injected into the holes to form a resin-reinforced portion in which the resin is hardened, so that the compression strength and bending strength of the rock wool board are improved. Can be reinforced.

Furthermore, in the invention according to claim 10 of the present invention, a large number of fine holes are formed in the real part of the rock wool board, and the resin is injected into this part by depping, so that the real part can be easily formed. Moreover, the resin can be surely injected to reinforce the real part.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a rock wool board according to an embodiment of the present invention in a reinforced state.

FIG. 2 is a sectional view of another embodiment of FIG.

FIG. 3 is a sectional view of another embodiment of FIG.

FIG. 4 is a cross-sectional view showing another embodiment of the above, FIG.
Is a cross-sectional view seen from the front, and (b) is a cross-sectional view seen from the side.

5 (a) and 5 (b) are plan views for explaining the arrangement of the above-mentioned resin reinforcing portion.

6A is a partially cutaway front view showing a method for making a hole in a rock wool board, and FIG. 6B is a partially cutaway front view showing a method different from FIG. 6A.

FIG. 7 is a cross-sectional view showing an example of a method of injecting resin into the holes of the rock wool board of the above.

FIG. 8 is a cross-sectional view showing another example of injecting the above resin, in which (a) and (b) show different methods.

FIG. 9 is a cross-sectional view showing another example of injecting the above resin.

FIG. 10 is a cross-sectional view showing another example of injecting the above resin,
(A) and (b) are different in coating means.

FIG. 11 is a cross-sectional view illustrating a state where the real part of the rock wool board of the above is impregnated with resin.

FIG. 12 is a cross-sectional view showing an example of impregnating the edge of the rock wool board with resin with the above.

FIG. 13 is an explanatory view showing another example in which the edge of the rock wool board is impregnated with resin, and (a) and (b) show different methods.

FIG. 14 is a cross-sectional view showing another example in which the edge of the rock wool board of the above is impregnated with resin.

15 (a), (b) and (c) are cross-sectional views showing a process of another example of impregnating the edge of the rock wool board with resin with the above.

FIG. 16 is a cross-sectional view showing another example in which the edge of the rock wool board of the above is impregnated with resin.

FIG. 17 is a schematic perspective view showing a step of impregnating the edge of the rock wool board with resin with the above.

FIG. 18 is a perspective view showing a state where the rock wool boards of the above are stacked.

FIG. 19 (a) is a cross-sectional view showing a state where the edge of the rock wool board is impregnated with resin, and FIG. 19 (b) is a plan view showing the rock wool board impregnated with resin.

FIG. 20 (a) is a cross-sectional view showing an example of injecting a resin into the rock wool board at the same time as drilling, and FIG. 20 (b) is an enlarged perspective view of the injection needle body of (a).

FIG. 21 is a cross-sectional view showing an example of heating and curing a rockwool board in which the above resin is injected.

22 (a), (b), (c) and (d) are explanatory views for explaining the samples in Table 1.

23 (a), (b), (c), and (d) are explanatory views for explaining the sample configuration of Table 2.

24 (a) and (b) are explanatory views showing the arrangement of Table 3. FIG.

[Explanation of symbols]

 1 Rock wool board 2 Resin reinforcement part 3 Resin skin layer 4 Surface material 6 Real part 7 Real reinforcement part

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroaki Usui 1048, Kadoma, Kadoma-shi, Osaka Prefecture Matsushita Electric Works Co., Ltd. (72) Yasunori Yamaguchi, 1048, Kadoma, Kadoma-shi, Osaka Matsushita Electric Works Co., Ltd. ( 72) Inventor Masasuke Tsukamoto 1048 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Works Co., Ltd.

Claims (10)

[Claims] 1. A reinforcing structure for a rock wool board, comprising: a rock wool board provided with a resin-reinforcing portion in which a resin is injected and cured so as to reach the front and back surfaces of the board. 2. A rock-wool board is provided with a columnar resin-reinforcing portion by injecting and curing a resin so as to reach the front and back surfaces of the board, and the column-shaped resin-reinforcing portion is provided over substantially the entire surface of the rock-wool board. Reinforcement structure of rock wool board characterized by being present. 3. A resin wool layer having a resin applied to the entire surface or a surface layer having a surface material such as plywood attached is formed on the front and back surfaces of a rock wool board, and a resin skin layer or surface layer and a columnar resin reinforcing portion are formed. The reinforcing structure of the rock wool board according to claim 2, wherein the reinforcing structure is formed by integrally connecting 4. The rock wool board is provided with a real portion such as a female fruit or a male fruit at an edge thereof, and a real reinforcing portion obtained by impregnating and hardening a resin is provided on the whole real portion. Alternatively, the reinforcing structure of the rock wool board according to claim 2 or claim 3. 5. A resin that is resistant to compression is used as the resin of the resin skin layer and the resin reinforcing portion, and the resin of the actual reinforcing portion has high nail retention, crack resistance during nailing, and water resistance. A reinforcing structure for a rock wool board according to claim 4, wherein a resin having high property is used. 6. A rock wool board is provided with a large number of holes for resin injection over substantially the entire surface, and then resin is injected into the holes and a columnar resin reinforcing portion is formed by curing the resin. How to reinforce rock wool board. 7. A method of reinforcing a rock wool board, comprising: forming a hole for injecting resin into a rock wool board and, at the same time, injecting resin into the hole to form a columnar resin reinforcement portion obtained by curing the resin. 8. A screen having a large number of through holes is placed on a rock wool board, a resin is applied from above the screen by a screen printing method, the resin is injected into the rock wool board through the through holes, and the resin is A method for reinforcing a rock wool board, which comprises forming a cured columnar resin reinforcing portion. 9. A rock wool board is provided with a large number of holes for resin injection over substantially the entire surface, and at least one surface of the rock wool board is formed with a groove having a width wider than the diameter of the hole to form holes. A method of reinforcing a rock wool board, characterized by forming a resin reinforcing portion which is made to communicate with each other, injecting resin into the holes and grooves and curing the resin. 10. The rock wool board according to claim 6, wherein a large number of fine holes are formed in the real part, and resin is injected into this part by depping. How to reinforce rock wool boards.