KR20220154383A - Insulation core for panel and fire prevention and its manufacturing method - Google Patents

Abstract

The present invention relates to an insulation core for a panel and fire prevention and a manufacturing method thereof. The insulation core for a panel and fire prevention comprises: a board part (110) made of mineral wool material, having a size corresponding to that of a panel or the steel plate of a fire door, and formed to have a thickness of 45-60 mm; and cover parts (120) made of mineral wool material, having a size corresponding to that of the board part (110), and formed to have a thickness of 10-20 mm. The board part (110) is provided as a single plate-shaped horizontal core (111) in which mineral fibers form a texture in a horizontal direction, or is provided as a vertical core (112) in which a plurality of mineral wool disc-cut products are arranged in a plate shape after being changed in direction so that mineral fibers form a texture in a vertical direction. A thermosetting resin is embedded in the horizontal core (111), the vertical core (112), and the cover parts (120). The cover parts (120) are integrated with one or both surfaces of the board part (110) by a heat treatment. The density of the mineral wool material of the board part (110) is 80-100 K. The density of the mineral wool material of the cover parts (120) is 120-200 K. Therefore, provided is the insulation core for a panel and fire prevention, which can significantly improve thermal performance, strength, and sound insulation performance and can be easily manufactured.

Description

Insulation core material for panel and fire prevention and its manufacturing method {INSULATION CORE FOR PANEL AND FIRE PREVENTION AND ITS MANUFACTURING METHOD}

The present invention relates to an insulation core material for panels and fire protection and a method for manufacturing the same, and more particularly, thermal performance, strength, and sound insulation performance in an insulation core material mounted inside panels and fire doors to ensure performance in the event of a fire. It relates to a significantly improved and easy-to-manufacture panel and fire insulation core material, and a manufacturing method thereof.

In general, it is prescribed to install fire doors by preparing fire prevention zones in accordance with standards set forth in laws and regulations to prevent spread and minimize damage in case of fire in multi-unit dwellings or large buildings such as apartments or villas.

Fire doors are classified as Class A or Class B fire doors according to the time to withstand fire and the thickness of the steel plate. Looking at the schematic structure of a conventional fire door, a door frame, a door leaf, a door closer, a hinge, a handle, and a gasket are combined as a set, and a core material is embedded inside the door leaf.

Looking at the schematic structure of a fire door with reference to known technologies, for example, Korean Patent Registration No. 10-0925577 includes the steps of manufacturing a bonded steel plate made by mutually bonding a surface plate and a support plate with an adhesive resin, and A step of perforating to mount a hinge and a lock device, a step of forming an inner and outer plate that forms the inner and outer surfaces of the door by shaping the perforated joined steel plate, and applying an adhesive to the inner and outer surfaces of the inner and outer plates facing each other Applying, attaching reinforcing plates along both edges between the inner and outer plates and filling the sound absorbing material, activating the adhesive with a hot press device to strengthen the adhesive force, and bending the edges of the inner and outer plates A fire door manufactured by forming the shape of the door and completing the door by fastening the hinge and the locking device to the perforated hole is constituted.

As another example, Korean Patent Registration No. 10 - 0982752 discloses a process of applying a foamable urethane adhesive to the inner surface of a front panel, and a process of spreading and attaching a honeycomb core to the inner surface of the front panel coated with the foamable urethane adhesive. , A process of injecting a filler selected from pearlite or vermiculite powder into the voids of the honeycomb core, a process of applying a foamable urethane adhesive to the inner surface of the rear panel, and a process of bonding the bent ends of the front panel and the rear panel to each other A fire door manufactured by the step of heating the bonded body of the front panel and the rear panel so that the foamable urethane adhesive on the inside comes into close contact with the filler in the honeycomb core.

On the other hand, the core material used in conventional fire doors is mainly made of paper or steel honeycomb, flame retardant EPS, polyester, etc. Insulation materials are molded and adhered to a predetermined panel to be embedded.

For example, Korean Patent Registration No. 10 - 1508989 discloses a honeycomb module for fire doors made by using a honeycomb in which a plurality of cardboards are continuously connected by bonding parts at regular intervals to form a plurality of grids in a unit honeycomb space. , A glass wool board cut like a flat plate after mixing adhesives with glass wool made by layering glass fibers and compressing it, and air pressure increased by thermal expansion by blocking fine pores formed in the glass wool board on both sides of the glass wool board. It constitutes a honeycomb module for a fire door including a heat insulating film adhered to prevent penetration of the glass wool board and a honeycomb laminated and bonded after applying an adhesive on both sides of the glass wool board.

Korean Registered Patent No. 10 - 0925577 (2009.11.06) Korean Registered Patent No. 10 - 0982752 (2010.09.20) Korean Registered Patent No. 10 - 1508989 (2015.04.06) Korea Utility Model Registration No. 20 - 0183493 (2000.05.15)

The fire door to which the prior art is applied as described above is made by applying a urethane adhesive to a panel to attach a honeycomb core and reinforcing the adhesive force by hot pressing to embed an insulating core material.

However, the honeycomb insulation core material according to the prior art is a structure in which paper, steel, or glass wool base paper is continuously molded and bonded in a honeycomb shape, and has the advantage of being lightweight and cost-saving, but has relatively low fire resistance and heat insulation performance and substantially reduces sound insulation performance. There are downsides that are hard to anticipate.

In particular, since the performance test of fire doors is based on the door set, there are cases in which inorganic insulation is wrapped around the paper honeycomb core at the time of the test, and only paper honeycomb is used in the actual product or cheap urethane is used as an adhesive. Such a defective fire door has a problem in that it is difficult to implement performance in the event of a fire and can cause large-scale damage.

On the other hand, in recent years, an insulating core material obtained by compressing and hardening glass wool, mineral wool, carbaul, etc. made of glass fiber or mineral fiber has been used for panels and fire doors.

However, the conventional insulating core material requires an additional binding operation and can be bonded when formed only with carbaul, but has a disadvantage in that heat resistance and strength are very weak because it is formed at a low density. In addition, for panels and fire doors to which conventional insulation core materials are applied, the core material supplier first cuts the core material in width and supplies it to the panel or fire door manufacturer, and when manufacturing the panel or fire door, the individual cut products are placed on the steel plate and attached with adhesive Since manufacturing is performed through a process such as performing a hot press operation, there is a disadvantage in that the manufacturing process is very complicated.

In particular, when the fibers of the core material are made only in the vertical direction, the conventional insulation core material has a disadvantage in that additional steel plate construction is unavoidable for insulation, as additional work is required for cutting the width, as well as heat loss. When the fiber is formed only in the horizontal direction, there are disadvantages in that the performance of the insulating core material does not meet expectations, such as low strength, low durability and fire resistance, such as being easily deformed by pressure, and heat loss caused by the occurrence of a step.

Accordingly, the present invention was invented to solve the problems of the prior art as described above,

A board portion 110 made of mineral wool material to correspond to the size of the steel plate of a panel or fire door and having a thickness of 45 to 60 mm;

It includes a cover part 120 made of a mineral wool material to correspond to the size of the board part 110 and formed to have a thickness of 10 to 20 mm by needle punching,

The board portion 110,

It is provided as a single plate-shaped horizontal core material 111 in which mineral fibers form a texture in the horizontal direction, or

Alternatively, a plurality of mineral wool disk cut products are prepared to be arranged in a plate shape after changing the direction, and the mineral fibers are provided as vertical core materials 112 to form a texture in the vertical direction,

A thermosetting resin is embedded in the horizontal core 111, the vertical core 112, and the cover 120,

The cover part 120 is configured by integrating one surface or both surfaces of the board part 110 by heat treatment.

The density of the mineral wool of the board part 110 is 80 to 100K, and the density of the mineral wool of the cover part 120 is provided to 120 to 200K by needle punching.

In addition, in the manufacturing method of the fire insulating core material according to the present invention,

A horizontal core manufacturing process (S10) of manufacturing a single plate-shaped horizontal core 111 in which mineral fibers form a texture in the horizontal direction by molding a mineral wool disc to a thickness of 45 to 60 mm in a dry state;

A vertical core manufacturing process (S20) of manufacturing a vertical core 112 in which mineral fibers form a texture in the vertical direction by arranging a plurality of mineral wool disc cut products in a plate shape after changing the direction in a dry state;

A cover manufacturing process (S30) of manufacturing the cover 120 by forming the mineral wool fabric to a thickness of 10 to 20 mm by needle punching in an undried state;

An integration process (S40) of preparing the board part 110 by selecting the horizontal core material 111 or the vertical core material 112 and integrating the cover part 120 on one surface or both surfaces of the board part 110. ),

In the horizontal core material manufacturing process (S10) and the vertical core material manufacturing process (S20), the density of the horizontal core material 111 and the vertical core material 112 is formed to 80 ~ 100K,

In the cover part manufacturing process (S30), the density of the cover part 120 is formed to be 120 to 200K by needle punching.

In the horizontal core manufacturing process (S10), the vertical core manufacturing process (S20), and the cover manufacturing process (S30), a thermosetting resin is mixed with the horizontal core material 111, the vertical core material 112, and the cover part 120. done so as to

In the integration process (S40), heat treatment is performed at 250 ° C. for 30 minutes in a state in which the cover part 120 is in close contact with the surface of the board part 110 to integrate with each other, thereby significantly improving thermal performance, strength, and sound insulation performance and manufacturing It is possible to achieve the purpose of providing a heat insulation core material for fire prevention that is easy to process.

The present invention provides an insulating core material for fire prevention that significantly improves thermal performance, strength, and sound insulation performance and is easy to manufacture in an insulating core material mounted inside a panel or fire door to secure performance in the event of a fire.

In particular, the present invention constitutes an insulating core material in which dual structure cores having different fibrous tissue densities or directions are integrally formed, so that weight increase and decrease, weight reduction and cost reduction are possible through the compression core material, and compared to the prior art, the strength and strength of the core material and It has the advantage of improving productivity by improving adhesion strength, durability, and sound insulation performance, and greatly simplifying the manufacturing process.

In addition, the present invention has the advantage of improving heat resistance and heat shielding performance by excluding the use of an adhesive for attaching the core material to the panel as in the prior art and reducing thermal conductivity by minimizing heat loss.

1 is a perspective view of a fire insulating core material according to an embodiment of the present invention.
2 is a perspective view of a fire insulating core material according to a second embodiment of the present invention.
Figure 3 is an exploded view of the fire insulating core material according to the present invention.
Figure 4 is a schematic process flow diagram of a method for manufacturing a fire insulating core material according to the present invention.
5 is an exemplary image of a fire insulating core material manufactured according to the present invention.

Hereinafter, the configuration and operation according to a preferred embodiment of the panel and fire insulating core material for fire prevention and the manufacturing method of the present invention will be described in detail with reference to the accompanying drawings. In the following description, detailed descriptions of parts that can be easily implemented by those skilled in the art may be omitted. In addition, since the following description describes the present invention with respect to preferred embodiments, the present invention is not limited by the following examples, and it is natural that various modifications may be provided within a range that does not depart from the scope of the present invention. something to do.

1 is a perspective view of a fireproof insulating core material according to one embodiment of the present invention, Figure 2 is a perspective view of a fireproof insulating core material according to a second embodiment of the present invention, Figure 3 is an exploded view of the fireproof insulating core material according to the present invention, 4 is a schematic process flow diagram of a method for manufacturing a heat insulating core material for fire prevention according to the present invention, and FIG. 5 shows an example image of a heat insulating core material for fire prevention manufactured according to the present invention.

Insulation core materials for panels and fire prevention, to which the technology of the present invention is applied, and their manufacturing methods significantly improve thermal performance, strength, and sound insulation performance in insulation core materials provided to secure performance in the event of a fire by mounting inside panels or fire doors. It should be noted that the present invention relates to an easy-to-process panel, a fire insulating core material, and a method for manufacturing the same.

As shown in FIG. 1 or 2, the fireproof insulating core material of the present invention for this purpose has a board part 110 made of a horizontal core material 111 or a vertical core material 112, and a heat insulating cover part 120 integrally formed. It constitutes the core material 100, and is specifically as follows.

The board portion 110 is made of mineral wool and is made to correspond to the size of the steel plate of a panel or fire door and has a thickness of 45 to 60 mm.

The board portion 110 is formed in a plate shape using a mineral wool disc. Mineral wool discs are formed by compression molding by laminating mineral wool fibers obtained by melting ore raw materials such as calcium silicate-based ore, basalt, andesite, and limestone at ultra-high temperature and turning them into fibers.

In the present invention, the density of the mineral wool of the board part 110 is 80 to 100K. When the density of the board portion 110 exceeds the above range, manufacturing cost increases, and when it is formed below the above range, a problem in that thickness and weight must be accompanied to implement fire resistance and sound insulation may occur.

The board part 110 is configured to be applied by selecting one of the horizontal core 111 and the vertical core 112 .

The horizontal core material 111 is provided in a single plate shape in which mineral fibers form a texture in a horizontal direction.

Since the horizontal core material 111 forms a texture in the same horizontal direction as the mineral wool disk, it is formed and provided in a single plate shape according to the standard.

The horizontal core material 111 is weak in strength and easily deformed by pressure because numerous mineral fibers are stacked up and down, but has the advantage of being easy to manufacture. Therefore, in the present invention, the horizontal core material 111 is applied to the board portion 110, but the high-density cover portion 120 to be described later is configured as a mixed integral type, which will be described later.

The vertical core material 112 is provided so that a plurality of mineral wool disc cut products are arranged in a plate shape after changing the direction, so that the mineral fibers form a texture in the vertical direction.

Unlike the mineral wool disc, the vertical core 112 is divided into a plurality of cut products to form a texture in the vertical direction, and then converted to a 90 degree direction and arranged in a plate shape, so that the mineral fibers form a texture in the vertical direction provide

The vertical core 112 has higher strength than the horizontal core 111 because the mineral fibers form a texture in the vertical direction, but additional manufacturing processes are involved due to the formation of cut products, resulting in heat loss in the texture direction Therefore, there are disadvantages such as the inevitable additional steel plate construction for insulation. Therefore, in the present invention, the vertical core material 112 is applied to the board portion 110, but the high-density cover portion 120 to be described later is configured as a mixed integral type.

The cover part 120 is made of a mineral wool material and is made to correspond to the size of the board part 110 and has a thickness of 10 to 20 mm.

The cover part 120 is formed in a plate shape that is thinner than the board part 110 using mineral wool fabric to form an insulating core material mixed with the board part 110 as an integral type, so that the horizontal core material 111 or the vertical core material 112 ) and to maximize performance such as heat insulation, sound insulation, and strength.

In the present invention, the density of the mineral wool of the cover part 120 is 120 to 200K. The mineral wool fabric used for the cover part 120 has a very wide thickness deviation at a thickness of 35 mm in the fiber layer and a basic density range of 50 to 80K, and the cover part 120 eliminates the thickness deviation by needle punching It is configured to derive the thickness and density of the fiber layer to the level of the above range while doing so. In addition, when the density of the cover portion 120 exceeds the above range, the manufacturing cost, thickness, and weight are unavoidably increased, and when formed below the above range, fire resistance, sound insulation performance, and bonding strength may be weakened.

The board part 110 made of the horizontal core material 111 or the vertical core material 112 and the cover part 120 are configured to embed a thermosetting resin.

The insulating core material according to the present invention is composed of a mixed integral type of the board part 110 and the cover part 120 forming different fiber structures and densities, excluding additional bonding work as in the prior art, and inside the fabric It is configured to integrate by heat treatment by embedding thermosetting resin.

The thermosetting resin may be configured to maintain bonding strength between the board part 110 and the cover part 120 even in a high-temperature environment such as a fire by mixing an inorganic binder with mineral wool and prevent harmful substances from being discharged.

The cover part 120 is configured to be integrated by heat treatment on one surface or both surfaces of the board part 110, excluding additional bonding work as in the prior art, and the cover part 120 and the board part 110 It is configured to be integrated by heat treatment in a state of close contact.

Further, in the present invention, in a state in which the board portion 110 and the cover portion 120 are integrated, inorganic binders and water glass (Aerogel) can be easily added to and applied to the upper and lower surfaces to be formed. The water glass is a material forming a porous gel structure and can improve heat insulation and sound insulation.

Hereinafter, looking at the manufacturing method of the fire insulating core material to which the technology of the present invention composed of the above-described configuration is applied.

In the method for manufacturing a heat insulation core material for fire protection according to the present invention, a board portion 110 selected from a horizontal core material 111 or a vertical core material 112 and a cover portion 120 are manufactured and combined to obtain an insulation core material formed of a mixed integral type. It is configured to manufacture, and as shown in FIG. 4, it includes a horizontal core manufacturing process (S10), a vertical core manufacturing process (S20), a cover manufacturing process (S30), and an integration process (S40).

The horizontal core manufacturing process (S10) is a process of manufacturing a single plate-shaped horizontal core 111 in which mineral fibers form a texture in a horizontal direction by molding a mineral wool disk to a thickness of 45 to 60 mm in a dry state.

The vertical core manufacturing process (S20) is a process of manufacturing a vertical core 112 in which mineral fibers form a texture in a vertical direction by arranging a plurality of mineral wool disc cut products in a dry state after changing the direction and arranging them in a plate shape.

In the vertical core manufacturing process (S20), the mineral wool disc is divided into a plurality of cut products having a width of 45 to 60 mm, then converted to a 90 degree direction and arranged so that the height (thickness) is 45 to 60 mm, thereby creating a texture in the vertical direction. It is configured to manufacture the vertical core material 112 to be formed.

In the horizontal core material manufacturing process (S10) and the vertical core material manufacturing process (S20), the density of the horizontal core material 111 and the vertical core material 112 is formed to be 80 to 100K.

The cover part manufacturing process (S30) is a process of manufacturing the cover part 120 by molding the mineral wool fabric to a thickness of 10 to 20 mm by needle punching in an undried state.

In the cover part manufacturing process (S30), the height of the cover part 120 is formed thinly compared to the horizontal core material 111 and the vertical core material 112, and the density is formed to be 120 to 200K.

The mineral wool fabric used in the cover manufacturing process (S30) has a very wide thickness deviation at the thickness of the fiber layer at the level of 35 mm and a basic density range of 50 to 80K, so the cover manufactured by the cover manufacturing process (S30) ( 120) is configured to derive the thickness and density of the fiber layer to the level of the above range while eliminating the thickness variation by needle punching.

In the horizontal core manufacturing process (S10), the vertical core manufacturing process (S20), and the cover manufacturing process (S30), a thermosetting resin is mixed with the horizontal core material 111, the vertical core material 112, and the cover part 120. done to do

In the integration process (S40), the board part 110 is prepared by selecting the horizontal core material 111 or the vertical core material 112, and the cover part 120 is formed on one surface or both surfaces of the board part 110. is the process of integrating

In the integration process (S40), heat treatment is performed at 250 ° C. for 30 minutes while the cover part 120 is in close contact with the surface of the board part 110, and the board part 110 and the cover part 120 are thermally cured. By integrating them together with resin, the insulating core material of the present invention is completed. Therefore, an additional bonding operation as in the prior art can be eliminated.

As a result of measuring the thermal conductivity of the insulating core material manufactured by the manufacturing method of the insulating core material for the panel and fire door of the present invention through its own experiment, when the horizontal core material 111 is applied to the board part 110, the thermal conductivity is about 0.040 W/ mk (70 ℃), and when the vertical core material 112 was applied, it was derived at the level of 0.044 W / mk (70 ℃), which is that the conventional simple vertical mineral wool core material has a thermal conductivity of 0.046 W / mk (70 ℃) It was confirmed that it had excellent thermal insulation performance compared to that.

As described above, the insulation core material for panel and fire protection according to the present invention and the manufacturing method thereof provide an insulation core material composed of a mixed integral type of core material having a dual structure having different densities or directions of mineral fiber organization, thereby improving thermal performance, strength and sound insulation performance. It has the effect of significantly improving and facilitating the manufacturing process.

Therefore, compared to the prior art, the present invention minimizes heat loss of the insulating core material and lowers the thermal conductivity, thereby improving heat resistance and thermal insulation performance, as well as increasing and reducing the weight of the insulating core material, reducing the cost, and In comparison, it has various effects such as improving the strength of the core material, adhesion strength, durability, and sound insulation performance, and greatly simplifying the manufacturing process to improve productivity.

100: insulation core
110: board part
111: horizontal core
112: vertical core
120: cover
S10: Horizontal core manufacturing process
S20: Vertical core manufacturing process
S30: cover manufacturing process
S40: Integration process

Claims (4)

A board portion 110 made of mineral wool material to correspond to the size of the steel plate of a panel or fire door and having a thickness of 45 to 60 mm;
It includes a cover part 120 made of a mineral wool material to correspond to the size of the board part 110 and formed to have a thickness of 10 to 20 mm by needle punching,
The board portion 110,
It is provided as a single plate-shaped horizontal core material 111 in which mineral fibers form a texture in the horizontal direction, or
Alternatively, a plurality of mineral wool disk cut products are prepared to be arranged in a plate shape after changing the direction, and the mineral fibers are provided as vertical core materials 112 to form a texture in the vertical direction,
A thermosetting resin is embedded in the horizontal core 111, the vertical core 112, and the cover 120,
The cover portion 120 is a panel and fireproof insulation core material, characterized in that configured by integrally configuring one surface or both surfaces of the board portion 110 by heat treatment. According to claim 1,
The density of the mineral wool of the board part 110 is 80 to 100K, and the density of the mineral wool of the cover part 120 is 120 to 200K by needle punching. heartwood. In the method of manufacturing the panel and the fire insulating core material according to any one of claims 1 or 2,
A horizontal core manufacturing process (S10) of manufacturing a single plate-shaped horizontal core 111 in which mineral fibers form a texture in the horizontal direction by molding a mineral wool disc to a thickness of 45 to 60 mm in a dry state;
A vertical core manufacturing process (S20) of manufacturing a vertical core 112 in which mineral fibers form a texture in the vertical direction by arranging a plurality of mineral wool disc cut products in a plate shape after changing the direction in a dry state;
A cover manufacturing process (S30) of manufacturing the cover 120 by forming the mineral wool fabric to a thickness of 10 to 20 mm by needle punching in an undried state;
An integration process (S40) of preparing the board part 110 by selecting the horizontal core material 111 or the vertical core material 112 and integrating the cover part 120 on one surface or both surfaces of the board part 110. ),
In the horizontal core material manufacturing process (S10) and the vertical core material manufacturing process (S20), the density of the horizontal core material 111 and the vertical core material 112 is formed to 80 ~ 100K,
In the cover manufacturing process (S30), the panel and fire insulation core material manufacturing method, characterized in that made to form the density of the cover 120 to 120 ~ 200K. According to claim 3,
In the horizontal core manufacturing process (S10), the vertical core manufacturing process (S20), and the cover manufacturing process (S30), a thermosetting resin is mixed with the horizontal core material 111, the vertical core material 112, and the cover part 120. done so as to
In the integration step (S40), in a state in which the cover portion 120 is in close contact with the surface of the board portion 110, heat treatment is performed at 250 ° C. for 30 minutes to integrate the panel and fire insulation core material Manufacturing method.

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